155 results on '"Yung-Tai Chen"'
Search Results
2. Adjuvant chemotherapy in T3 upper urinary tract urothelial carcinoma: retrospective cohort study
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Yi-Huei Chang, Po-Jen Hsiao, Han-Yu Weng, Ta-Yao Tai, Hsin-Chih Yeh, Hsiang-Ying Lee, Chao-Yuan Huang, Chung-Hsin Chen, Yao-Chou Tsai, Chih-Chin Yu, Chung-You Tsai, Pai-Yu Cheng, Thomas Y. Hsueh, Allen W. Chiu, Yuan-Hong Jiang, Yu-Khun Lee, Yung-Tai Chen, Leonard S. Chuech, Bing-Juin Chiang, Hsu-Che Huang, I-Hsuan Alan Chen, Jen-Tai Lin, Wei Yu Lin, Su-Wei Hu, Jen-Kai Fang, Hui-Tsung Hsu, Chi-Jung Chung, and Chi-Ping Huang
- Abstract
Background The benefit of adjuvant chemotherapy was investigated for patients with T3 upper urinary tract urothelial carcinoma (UTUC) who underwent radical nephroureterectomy. Methods This is a multicenter retrospective observational study of 482 patients with pathological T3 N0 and Nx UTUC who underwent radical nephroureterectomy with and without adjuvant chemotherapy. The median overall survival (OS), cancer-specific survival (CSS), and disease-free survival (DFS) of patients who received adjuvant chemotherapy were analyzed to determine predictors of patient prognosis. Results Of the 482 patients, 140 (29.0%) received adjuvant chemotherapy. Adjuvant chemotherapy showed a benefit only for the median DFS rate (58% vs 49%; p = 0.04). Multivariate analyses revealed that adjuvant chemotherapy improved median DFS (HR 0.537; CI 0.35–0.83; p = 0.005). Surgical margin also significantly influenced median OS (HR 4.038; p
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- 2023
3. Comparison of oncological outcomes for hand-assisted and pure laparoscopic radical nephroureterectomy: results from the Taiwan Upper Tract Urothelial Cancer Collaboration Group
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Shiu-Dong Chung, Wei-Ming Li, Wei-Che Wu, Chih-Chin Yu, Hung-Lung Ke, Wei-Yu Lin, Yung Tai Chen, Chia-Chang Wu, Jian-Hua Hong, Yao-Chou Tsai, Chung-Hsin Chen, Yu-Hua Lin, and Yuan-Hong Jiang
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medicine.medical_specialty ,Proportional hazards model ,business.industry ,Standard treatment ,Urology ,Hepatology ,Blunt dissection ,Upper tract ,Internal medicine ,Propensity score matching ,Cohort ,medicine ,Surgery ,business ,Abdominal surgery - Abstract
Purpose Laparoscopic radical nephroureterectomy (LNU) has gradually become the new standard treatment for localized upper tract urothelial cancer (UTUC). With more blunt dissection and tactile sensation, hand-assisted LNU might shorten the operative time compared with the pure laparoscopic approach. However, whether the use of the hand-assisted or the pure laparoscopic approach has an effect on oncological outcomes remains unclear. Methods We retrospectively identified 629 patients with non-metastatic UTUC who underwent hand-assisted (n = 515) or pure LNU (n = 114) at 9 hospitals in Taiwan between 2004 and 2019. Overall survival, cancer-specific survival, recurrence-free survival, and bladder recurrence-free survival were compared between these two groups using inverse-probability of treatment weighting (IPTW) derived from the propensity scores for baseline covariate adjustment. Results The median follow-up period was 32.9 and 28.7 months in the hand-assisted and the pure groups, respectively. IPTW-adjusted Cox proportional hazards models showed that the laparoscopic approach (pure vs. hand-assisted) was not significantly associated with all-cause mortality (HR 0.79, 95% CI 0.49-1.24, p = 0.304), cancer-specific mortality (HR 0.88, 95% CI 0.51-1.51, p = 0.634), or extra-vesical recurrence (HR 0.65, 95% CI 0.41-1.04, p = 0.071). However, the pure laparoscopic approach was significantly associated with lower intra-vescial recurrence (HR 0.64, 95% CI 0.43-0.96, p = 0.029) for patients who underwent LNU. Kaplan-Meier curves also revealed that the pure laparoscopic approach was associated with better bladder recurrence-free survival compared with the hand-assisted laparoscopic approach in both the original cohort and the IPTW-adjusted cohort (log-rank p = 0.042 and 0.027, respectively). Conclusions The performance of hand-assisted or pure LNU does not significantly affect the all-cause mortality, cancer-specific mortality, or extra-vesical recurrence for patients with non-metastatic UTUC. However, the hand-assisted laparoscopic approach could increase the risk of intra-vesical recurrence for patients who undergo LNU.
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- 2021
4. Oncologic impact of delay between diagnosis and radical nephroureterectomy
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Kuan-Hsien, Wu, Chao-Hsiang, Chang, Hsi-Chin, Wu, Steven K, Huang, Chien-Liang, Liu, Cheng-Kuang, Yang, Jian-Ri, Li, Jen-Shu, Tseng, Wun-Rong, Lin, Chih-Chin, Yu, Chi-Wen, Lo, Chao-Yuan, Huang, Chung-Hsin, Chen, Chung-You, Tsai, Pai-Yu, Cheng, Yuan-Hong, Jiang, Yu-Khun, Lee, Yung-Tai, Chen, Ting-Chun, Yeh, Jen-Tai, Lin, Yao-Chou, Tsai, Thomas Y, Hsueh, Bing-Juin, Chiang, Yi-De, Chiang, Wei-Yu, Lin, Yeong-Chin, Jou, See-Tong, Pang, and Hung-Lung, Ke
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Cancer Research ,Oncology - Abstract
PurposeThis study aimed to evaluate the oncological outcome of delayed surgical wait time from the diagnosis of upper tract urothelial carcinoma (UTUC) to radical nephroureterectomy (RNU).MethodsIn this multicenter retrospective study, medical records were collected between 1988 and 2021 from 18 participating Taiwanese hospitals under the Taiwan UTUC Collaboration Group. Patients were dichotomized into the early (≤90 days) and late (>90 days) surgical wait-time groups. Overall survival, disease-free survival, and bladder recurrence-free survival were calculated using the Kaplan–Meier method and multivariate Cox regression analysis. Multivariate analysis was performed using stepwise linear regression.ResultsOf the 1251 patients, 1181 (94.4%) were classifed into the early surgical wait-time group and 70 (5.6%) into the late surgical wait-time group. The median surgical wait time was 21 days, and the median follow-up was 59.5 months. Our study showed delay-time more than 90 days appeared to be associated with worse overall survival (hazard ratio [HR] 1.974, 95% confidence interval [CI] 1.166−3.343, p = 0.011), and disease-free survival (HR 1.997, 95% CI 1.137−3.507, p = 0.016). This remained as an independent prognostic factor after other confounding factors were adjusted. Age, ECOG performance status, Charlson Comorbidity Index (CCI), surgical margin, tumor location and adjuvant systemic therapy were independent prognostic factors for overall survival. Tumor location and adjuvant systemic therapy were also independent prognostic factors for disease-free survival.ConclusionsFor patients with UTUC undergoing RNU, the surgical wait time should be minimized to less than 90 days. Prolonged delay times may be associated with poor overall and disease-free survival.
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- 2022
5. Endoscopic management of upper tract urothelial cancer in a highly endemic area: A Taiwan nationwide collaborative study
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Yung Tai Chen, Hsin-Chih Yeh, Hsiang-Ying Lee, Po-Fan Hsieh, Eric Chieh-lung Chou, Yao-Chou Tsai, Jian-Hua Hong, Chao-Yuan Huang, Yuan-Hong Jiang, Yu-Khun Lee, Jen-Shu Tseng, Chih-Chin Yu, Bing-Juin Chiang, Thomas Y. Hsueh, Chia-Chang Wu, and Chung-You Tsai
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Surgery - Published
- 2022
6. Surgical outcome predictor analysis following hand-assisted or pure laparoscopic transperitoneal nephroureterectomy using the Taiwan upper urinary tract urothelial carcinoma database
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Chih-Chun, Kuo, Guang-Heng, Chen, Chao-Hsiang, Chang, Chao-Yuan, Huang, Chung-Hsin, Chen, Ching-Chia, Li, Wen-Jeng, Wu, Chih-Chin, Yu, Chi-Wen, Lo, Yung-Tai, Chen, Shin-Hong, Chen, Pai-Yu, Cheng, Thomas Y, Hsueh, Allen W, Chiu, Po-Han, Lin, Jen-Shu, Tseng, Jen-Tai, Lin, Yuan-Hong, Jiang, Chia-Chang, Wu, Wei-Yu, Lin, Hsu-Che, Huang, Han-Sun, Chiang, and Bing-Juin, Chiang
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Surgery - Abstract
PurposeTaiwan has a high incidence of upper tract urothelial carcinoma (UTUC). This study aimed to compare the surgical outcomes following transperitoneal hand-assisted laparoscopic nephroureterectomy (TP-HALNU) and transperitoneal pure laparoscopic nephroureterectomy (TP-LNU) from the Taiwan nationwide UTUC collaboration database using different parameters, including surgical volumes.Materials and methodsThe nationwide UTUC collaboration database includes 14 hospitals in Taiwan from the Taiwan Cancer Registry. We retrospectively reviewed the records of 622 patients who underwent laparoscopic nephroureterectomy between July 1988 and September 2020. In total, 322 patients who received TP-LNU or TP-HALNU were included in the final analysis. Clinical and pathological data and oncological outcomes were compared.ResultsOf the 322 patients, 181 and 141 received TP-LNU and TP-HALNU, respectively. There were no differences in clinical and histopathological data between the two groups. No differences were observed in perioperative and postoperative complications. There were no significant differences in oncological outcomes between the two surgical approaches. In the multivariate analysis, the cohort showed that age ≥70 years, positive pathological lymph node metastasis, tumors located in the upper ureter, and male sex were predictive factors associated with an increased risk of adverse oncological outcomes. A surgical volume of ≥20 cases showed a trend toward favorable outcomes on cancer-specific survival [hazard ratio (HR) 0.154, p = 0.052] and marginal benefit for overall survival (HR 0.326, p = 0.019) in the multivariate analysis.ConclusionAlthough different approaches to transperitoneal laparoscopic nephroureterectomy showed no significant differences in surgical outcomes, age, sex, lymph node metastasis, and tumor in the upper ureter in the following period were predictive factors for oncological outcomes. Higher surgical volume did not impact disease-free survival and bladder recurrence-free survival but was associated with improved overall survival and cancer-specific survival. Exploration of unknown influencing factors is warranted.
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- 2022
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7. Far-Infrared Therapy Improves Arteriovenous Fistula Patency and Decreases Plasma Asymmetric Dimethylarginine in Patients with Advanced Diabetic Kidney Disease: A Prospective Randomized Controlled Trial
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Chun-Fan Chen, Chiu-Yang Lee, Fu-An Chen, Chih-Yu Yang, Tz-Heng Chen, Shuo-Ming Ou, Kuo-Hua Lee, Ching-Po Li, Chia-Hao Chan, Pui-Ching Lee, Yung-Tai Chen, Tsung-Lun Lee, Yang Ho, Fan-Yu Chen, Hao-Wei Ma, Jinn-Yang Chen, Ann Charis Tan, Szu-Yuan Li, and Chih-Ching Lin
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access blood flow ,Asymmetric dimethylarginine ,arteriovenous fistula ,chronic kidney disease ,diabetic kidney disease ,far-infrared therapy ,General Medicine - Abstract
Asymmetric dimethylarginine (ADMA) is an endogenous inhibitor of nitric oxide synthase and plays a significant role in the pathogenesis of arteriovenous fistula (AVF) dysfunction. The aim of this study is to evaluate the effect of far-infrared (FIR) therapy on the maturation and patency of newly-created AVFs in patients with advanced diabetic kidney disease (DKD) as well as the concurrent change in plasma ADMA. The study enrolled 144 participants with advanced DKD where 101 patients were randomly allocated to the FIR therapy group (N = 50) and control group (N = 51). Patients receiving FIR therapy had a decreased AVF failure rate within 12 months (16% versus 35.3%; p = 0.027); decreased incremental change of ADMA concentration at the 3rd and 12th month; increased AVF blood flow at the 1st, 3rd, and 12th month; increased 3-month physiologic maturation rate (88% versus 68.6%; p = 0.034); increased 1-year unassisted AVF patency rate (84% versus 64.7%; p = 0.017); and increased clinical AVF maturation rate within 12 months (84% versus 62.7%; p = 0.029) compared to the control group. The study demonstrates that FIR therapy can reduce the incremental changes in plasma ADMA concentration, which may be associated with the improvement of AVF prognosis in patients with advanced DKD.
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- 2022
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8. The Associations between Erythropoietic Response with Inflammation Markers and Perfluorinated Chemicals in Hemodialysis Patients
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Wen-Sheng Liu, Chien-Hung Lin, Ann Charis Tan, Yen-Ting Lai, Tsung-Yun Liu, Hsiang-Lin Chan, Szu-Yuan Li, Chun-Fan Chen, Yung-Tai Chen, Tz-Heng Chen, Fan-Yu Chen, Yang Ho, Han-Hsing Tsou, and Chih-Ching Lin
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continuous erythropoietin receptor activator ,hemodialysis ,erythropoietic response ,erythropoiesis-stimulating agents ,Health Information Management ,inflammation ,Leadership and Management ,Health Policy ,Health Informatics ,perfluorinated chemicals - Abstract
Erythropoiesis-stimulating agents (ESA) are used to treat anemia in hemodialysis (HD) patients. We investigated the role of inflammation and accumulation of environmental toxins (perfluorinated chemicals (PFCs), such as perfluorooctanoic acid and perfluorooctane sulfonate) in the erythropoietic response of HD patients who receive a fixed monthly continuous erythropoietin receptor activator (CERA) dosage. Forty-five patients underwent three successive phases of ESA treatment for two months each (phase one: 100 µg CERA once monthly; phase two: 50 µg CERA twice monthly; phase three: 100 µg CERA once monthly). Patient data were collected to determine the association of various factors with erythropoietic response (change in hematocrit). Liquid chromatography-tandem mass spectrometry was used to analyze perfluorinated chemicals. Twenty-eight patients exhibited a poor erythropoietic response that was significantly associated with: age > 80 years, initial hematocrit > 36%, glucose > 200 mg/dL, alanine aminotransferase > 21 U/L, c-reactive protein > 1 mg/dL, interleukin−6 > 10 ng/mL, lactate dehydrogenase ≤ 190 U/L, and chloride ≤ 93 mEq/L. There was also a borderline significant association between inflammation and PFCs, although PFCs failed to show any impact on ESA response. Age, glucose, chloride, liver function, and inflammation may be associated with cost-effective fixed CERA dosage administered at an increased frequency.
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- 2023
9. Baseline Peritoneal Membrane Transport Characteristics Are Associated with Peritonitis Risk in Incident Peritoneal Dialysis Patients
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Yi-Hsin Chou, Yung-Tai Chen, Jinn-Yang Chen, Der-Cherng Tarng, Chih-Ching Lin, and Szu-Yuan Li
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Process Chemistry and Technology ,peritoneal dialysis ,peritonitis ,peritoneal equilibration test ,Chemical Engineering (miscellaneous) ,Filtration and Separation - Abstract
The peritoneal equilibration test (PET) is a semi-quantitative measurement that characterizes the rate of transfer of solutes and the water transfer rate across the peritoneum in patients treated with peritoneal dialysis (PD). The results of the PET are used to maximize daily peritoneal ultrafiltration and solute clearances. Previous studies have shown that high transport status is associated with ultrafiltration failure, malnutrition, and reduced survival; however, the way in which peritoneum transport characteristics affect peritonitis risk is unknown. In the current cohort study, we recruited 898 incident-PD patients and used intention-to-treat analysis to test if baseline PET affected the subsequent 3-year peritonitis rate. Among all recruited PD patients, 308 (34.2%) developed peritonitis within three years. Multivariate Cox regression analysis showed that the high-transport group has the greatest peritonitis risk (HR 1.98, 95% CI: 1.08–3.62) even after an adjustment for demographics, comorbid diseases, and biochemical measurements. We concluded that a baseline high peritoneal membrane transport rate is an independent risk factor for peritonitis in incident PD patients.
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- 2022
10. The Value of Preoperative Local Symptoms in Prognosis of Upper Tract Urothelial Carcinoma After Radical Nephroureterectomy: A Retrospective, Multicenter Cohort Study
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Hsin-Chih Yeh, Chao-Hsiang Chang, Jen-Kai Fang, I-Hsuan Alan Chen, Jen-Tai Lin, Jian-Hua Hong, Chao-Yuan Huang, Shian-Shiang Wang, Chuan-Shu Chen, Chi-Wen Lo, Chih-Chin Yu, Jen-Shu Tseng, Wun-Rong Lin, Yeong-Chin Jou, Ian-Seng Cheong, Yuan-Hong Jiang, Chung-You Tsai, Thomas Y. Hsueh, Yung-Tai Chen, Hsu-Che Huang, Yao-Chou Tsai, Wei-Yu Lin, Chia-Chang Wu, Po-Hung Lin, Te-Wei Lin, and Wen-Jeng Wu
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Cancer Research ,Oncology - Abstract
PurposeWe aimed to evaluate the impact of preoperative local symptoms on prognosis after radical nephroureterectomy in patients with upper tract urothelial carcinoma (UTUC).MethodsThis retrospective study consisted of 2,662 UTUC patients treated at 15 institutions in Taiwan from 1988 to 2019. Clinicopathological data were retrospectively collected for analysis by the Taiwan UTUC Collaboration Group. The Kaplan-Meier method was used to calculate overall survival (OS), cancer-specific survival (CSS), disease-free survival (DFS), and bladder recurrence-free survival (BRFS). The prognostic value of preoperative local symptoms in OS, CSS, DFS, and BRFS was investigated using Cox proportional hazards models.ResultsThe median follow-up was 36.6 months. Among 2,662 patients, 2,130 (80.0%) presented with hematuria and 398 (15.0%) had symptomatic hydronephrosis at diagnosis. Hematuria was associated with less symptomatic hydronephrosis (p <0.001), more dialysis status (p = 0.027), renal pelvic tumors (p <0.001), and early pathological tumor stage (p = 0.001). Symptomatic hydronephrosis was associated with female patients (p <0.001), less dialysis status (p = 0.001), less bladder cancer history (p <0.001), ureteral tumors (p <0.001), open surgery (p = 0.006), advanced pathological tumor stage (p <0.001), and postoperative chemotherapy (p = 0.029). Kaplan-Meier analysis showed that patients with hematuria or without symptomatic hydronephrosis had significantly higher rates of OS, CSS, and DFS (all p <0.001). Multivariate analysis confirmed that presence of hematuria was independently associated with better OS (HR 0.789, 95% CI 0.661–0.942) and CSS (HR 0.772, 95% CI 0.607–0.980), while symptomatic hydronephrosis was a significant prognostic factor for poorer OS (HR 1.387, 95% CI 1.142–1.683), CSS (HR 1.587, 95% CI 1.229–2.050), and DFS (HR 1.378, 95% CI 1.122–1.693).ConclusionsPreoperative local symptoms were significantly associated with oncological outcomes, whereas symptomatic hydronephrosis and hematuria had opposite prognostic effects. Preoperative symptoms may provide additional information on risk stratification and perioperative treatment selection for patients with UTUC.
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- 2022
11. Factors Predicting Oncological Outcomes of Radical Nephroureterectomy for Upper Tract Urothelial Carcinoma in Taiwan
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I-Hsuan Alan Chen, Chao-Hsiang Chang, Chi-Ping Huang, Wen-Jeng Wu, Ching-Chia Li, Chung-Hsin Chen, Chao-Yuan Huang, Chi-Wen Lo, Chih-Chin Yu, Chung-You Tsai, Wei-Che Wu, Jen-Shu Tseng, Wun-Rong Lin, Yuan-Hong Jiang, Yu-Khun Lee, Yeong-Chin Jou, Ian-Seng Cheong, Thomas Y. Hsueh, Allen W. Chiu, Yung-Tai Chen, Jih-Sheng Chen, Bing-Juin Chiang, Yao-Chou Tsai, Wei Yu Lin, Chia-Chang Wu, Jen-Tai Lin, and Chia-Cheng Yu
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urinary tract ,Cancer Research ,Oncology ,ureter ,risk factors ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,nephroureterectomy ,kidney pelvis ,survival ,urinary bladder ,urothelial carcinoma ,RC254-282 ,Original Research - Abstract
BackgroundTaiwan is one of the endemic regions where upper tract urothelial carcinoma (UTUC) accounts for approximately a third of all urothelial tumors. Owing to its high prevalence, extensive experience has been accumulated in minimally invasive radical nephroureterectomy (RNU). Although a variety of predictive factors have been explored in numerous studies, most of them were on a single-center or limited institutional basis and data from a domestic cohort are lacking.ObjectiveThis study aims to identify significant predicting factors of oncological outcomes, including overall survival (OS), cancer-specific survival (CSS), disease-free survival (DFS), and intravesical recurrence-free survival (IVRFS), following RNU for UTUC in Taiwan.MethodsA multicenter registry database, Taiwan UTUC Collaboration Group, was utilized to analyze oncological outcomes of 3,333 patients undergoing RNU from 1988 to 2021 among various hospitals in Taiwan. Clinicopathological parameters were recorded according to the principles established by consensus meetings. The Kaplan-Meier estimator was utilized to estimate the survival rates, and the curves were compared using the stratified log-rank test. Univariate and multivariate analyses were performed with the Cox proportional hazard model to explore potential predicting factors.ResultsWith a median follow-up of 41.8 months in 1,808 patients with complete information, the 5-year IVRFS, DFS, CSS, and OS probabilities were 66%, 72%, 81%, and 70%, respectively. In total, 482 patients experienced intravesical recurrence, 307 died of UTUC, and 583 died of any cause. Gender predominance was female (57%). A total of 1,531 patients (84.7%) had high-grade tumors; preoperative hydronephrosis presented in 1,094 patients (60.5%). Synchronous bladder UC was identified in 292 patients (16.2%). Minimally invasive procedures accounted for 78.8% of all surgeries, including 768 hand-assisted laparoscopic (42.5%) and 494 laparoscopic (27.3%) approaches. Synchronous bladder UC was the dominant adverse predicting factor for all survival outcomes. Other independent predicting factors for OS, CSS, and DFS included age ≧70, presence of preoperative hydronephrosis, positive surgical margin, LVI, pathological T and N staging, and laparoscopic RNU.ConclusionSynchronous UC of the urinary bladder is an independent adverse prognostic factor for survival in UTUC. The presence of preoperative hydronephrosis was also corroborated as a disadvantageous prognostic factor. Our multivariate analysis suggested that laparoscopic RNU might provide better oncological control.
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- 2022
12. Statin Use and Influenza Vaccine Effectiveness in Persons ≥ 65 Years of Age, Taiwan
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Chia Jen Shih, Shuo Ming Ou, Yung Tai Chen, Pei Wen Chao, Shih Hsiu Lo, and Lung Wen Tsai
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Microbiology (medical) ,medicine.medical_specialty ,Epidemiology ,Influenza vaccine ,030231 tropical medicine ,Taiwan ,lcsh:Medicine ,Influenza vaccinations ,lcsh:Infectious and parasitic diseases ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Influenza, Human ,medicine ,Humans ,critical illness ,viruses ,lcsh:RC109-216 ,030212 general & internal medicine ,cardiovascular diseases ,Hospital Mortality ,business.industry ,respiratory diseases ,Research ,Significant difference ,Vaccination ,lcsh:R ,virus diseases ,nutritional and metabolic diseases ,Statin treatment ,vaccines ,medicine.disease ,Pneumonia ,Infectious Diseases ,vaccine-preventable diseases ,National health insurance ,Influenza Vaccines ,Critical illness ,Vaccine-preventable diseases ,lipids (amino acids, peptides, and proteins) ,Statin Use and Influenza Vaccine Effectiveness in Persons ≥ 65 Years of Age, Taiwan ,Hydroxymethylglutaryl-CoA Reductase Inhibitors ,business ,influenza ,hospitalization - Abstract
Influenza vaccine effectively reduced risks for in-hospital death or hospitalization, regardless of statin use., Debates on whether statin use reduces the effectiveness of influenza vaccines against critical illness and death among persons >65 years of age continue. We conducted a study of 9,427,392 persons >65 years of age who did and did not receive influenza vaccinations during 12 consecutive influenza seasons, 2000–01 through 2011–12. Using data from Taiwan’s National Health Insurance Research Database, we performed propensity score-matching to compare vaccinated persons with unvaccinated controls. After propensity score-matching, the vaccinated group had lower risks for in-hospital death from influenza and pneumonia and for hospitalization for pneumonia and influenza, circulatory conditions, and critical illnesses compared with the unvaccinated group. We stratified the 2 groups by statin use and analyzed data by interaction analysis and saw no statistically significant difference. We found that influenza vaccine effectively reduced risks for hospitalization and death in persons >65 years of age, regardless of statin use.
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- 2020
13. Prognosis of Vascular Access in Haemodialysis Patients with Autosomal Dominant Polycystic Kidney Disease
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Shuo Ming Ou, Ko Wen Yu, Yung Tai Chen, Chih Ching Lin, Chun Fan Chen, Tsung Lun Lee, Ann Charis Tan, Chia Hao Chan, and Fan Yu Chen
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Adult ,Male ,medicine.medical_specialty ,Time Factors ,030232 urology & nephrology ,Autosomal dominant polycystic kidney disease ,Urology ,Vascular access ,Taiwan ,Arteriovenous fistula ,lcsh:Medicine ,030204 cardiovascular system & hematology ,urologic and male genital diseases ,Article ,03 medical and health sciences ,0302 clinical medicine ,Primary outcome ,Arteriovenous Shunt, Surgical ,Postoperative Complications ,Renal Dialysis ,Risk Factors ,Polycystic kidney disease ,medicine ,Humans ,In patient ,cardiovascular diseases ,lcsh:Science ,Vascular Patency ,Aged ,Retrospective Studies ,Multidisciplinary ,business.industry ,Incidence (epidemiology) ,Incidence ,lcsh:R ,Retrospective cohort study ,Middle Aged ,medicine.disease ,Polycystic Kidney, Autosomal Dominant ,Prognosis ,Haemodialysis ,Propensity score matching ,Kidney Failure, Chronic ,Female ,lcsh:Q ,business ,Follow-Up Studies - Abstract
Vascular diseases are commonly observed in patients with autosomal dominant polycystic kidney disease (ADPKD). We aim to investigate the differences in the risk for arteriovenous fistula or graft (AVF/AVG) dysfunction in haemodialysis (HD) patients with and without ADPKD. 557 ADPKD and 1671 non-ADPKD patients were enrolled in the study after propensity score matching. The primary outcome measure is the incidence rate of AVF/AVG dysfunction. The incidence rates and risks of AVF/AVG dysfunction (per 100 person-years) for ADPKD and non-ADPKD patients were (1) 38.83 and 48.99 [SHR = 0.79, P = 0.137], respectively, for within 90 days, (2) 45.85 and 51.31 [SHR = 0.90, P = 0.300], respectively, for within 180 days, (3) 44.42 and 41.40 [SHR = 1.08, P = 0.361], respectively, for within the first year, (4) 27.38 and 24.69 [SHR = 1.09, P = 0.168], respectively, for within 5 years, (5) 17.35 and 13.80 [SHR = 1.19, P = 0.045], respectively, for between the 1st and 10th year, and (6) 25.40 and 21.22 [SHR = 1.14, P = 0.031], respectively, for all periods. ADPKD patients had lower incidence rates of AVF/AVG dysfunction within the first 180 days than non-ADPKD patients, but presented a higher incidence rate after 1 year of AVF/AVG creation and onwards.
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- 2020
14. Predictive factors of post-laparoscopic inguinal hernia acute and chronic pain: prospective follow-up of 807 patients from a single experienced surgeon
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Yao Chou Tsai, Yung Tai Chen, Chi-Wen Lo, Fu-Shan Jaw, and Chih Chin Yu
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medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Convalescence ,media_common.quotation_subject ,Visual Analog Pain Scale ,Chronic pain ,Hepatology ,medicine.disease ,Hernia repair ,Surgery ,03 medical and health sciences ,Inguinal hernia ,0302 clinical medicine ,030220 oncology & carcinogenesis ,Internal medicine ,medicine ,030211 gastroenterology & hepatology ,Hernia ,business ,Abdominal surgery ,media_common - Abstract
Convalescence after hernia repair is one of the main focuses for hernia surgeons. We analyzed our prospectively collected data to identify possible predictive factors for post-operative acute and chronic pain. We prospectively collected the demographic data and peri-operative findings. Post-operative acute pain was evaluated with Visual Analog Pain Scale. The chronic pain (pain persists for > 6 months since operation) was also recorded. From June 2008 to August 2018, there were 807 patients with 1029 sites of inguinal hernia enrolled in our analysis. Pain before operation was associated with the severity of acute pain on OP (operation) day, POD 1 (post-operative day 1), and POD 7 (post-operative day 7). Younger patients had significantly higher post-operative acute pain on OP day, POD 1, and POD 7. The staple mesh fixation method resulted in a higher pain score at OP day and POD 1. The predictive factors for chronic pain were sex (female), young age (
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- 2020
15. Incidence of and risk factors for cryptococcosis in kidney transplant recipients in Taiwan—A nationwide population-based study
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Fu Der Wang, Yung Tai Chen, Wen Chien Fan, Ping Feng Wu, Che An Tsai, and Wen Sen Lee
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Adult ,Male ,0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,030106 microbiology ,Population ,Taiwan ,lcsh:Infectious and parasitic diseases ,Cohort Studies ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Risk Factors ,Internal medicine ,Epidemiology ,medicine ,Humans ,lcsh:RC109-216 ,Cumulative incidence ,030212 general & internal medicine ,education ,Proportional Hazards Models ,Retrospective Studies ,education.field_of_study ,business.industry ,Incidence ,Incidence (epidemiology) ,Hazard ratio ,Age Factors ,Cryptococcosis ,General Medicine ,Middle Aged ,medicine.disease ,Kidney Transplantation ,Infectious Diseases ,Cohort ,Female ,business ,Cohort study - Abstract
Objectives: The aim of this study was to determine the long-term incidence of cryptococcosis in kidney transplant recipients (KTRs) and to analyze its risk factors. Methods: This retrospective population-based cohort study analyzed data obtained from Taiwan’s National Health Insurance Research Database for KTRs during 2000–2012 and matched cohorts. Both populations were followed until death, development of cryptococcosis, or December 2013. Results: A total of 4,933 KTRs and 49,930 matched patients were included. The cryptococcosis incidence rates for the KTR cohort and matched cohort were 10.59 and 0.4 per 10,000 person-years, respectively. The hazard ratio for cryptococcosis among KTRs was 26.65 (p
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- 2019
16. Impact of Adjuvant Chemotherapy on Variant Histology of Upper Tract Urothelial Carcinoma: A Propensity Score-Matched Cohort Analysis
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Chi-Wen Lo, Wei-Ming Li, Hung-Lung Ke, Yi-Huei Chang, Hsi-Chin Wu, I-Hsuan Alan Chen, Jen-Tai Lin, Chao-Yuan Huang, Chung-Hsin Chen, Jen-Shu Tseng, Wun-Rong Lin, Yuan-Hong Jiang, Yu-Khun Lee, Chung-You Tsai, Shiu-Dong Chung, Thomas Y. Hsueh, Allen W. Chiu, Yeong-Chin Jou, Ian-Seng Cheong, Yung-Tai Chen, Jih-Sheng Chen, Bing-Juin Chiang, Chih-Chin Yu, Wei Yu Lin, Chia-Chang Wu, Chuan-Shu Chen, Han-Yu Weng, and Yao-Chou Tsai
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Cancer Research ,Oncology - Abstract
BackgroundThe advantage of adjuvant chemotherapy for upper urinary tract urothelial cancer (UTUC) has been reported, whereas its impact on upper tract cancer with variant histology remains unclear. We aimed to answer the abovementioned question with our real-world data.Design, Setting, and ParticipantsPatients who underwent radical nephroureterectomy (RNU) and were confirmed to have variant UTUC were retrospectively evaluated for eligibility of analysis. In the Taiwan UTUC Collaboration database, we identified 245 patients with variant UTUC among 3,109 patients with UTUC who underwent RNU after excluding patients with missing clinicopathological information.InterventionThose patients with variant UTUC were grouped based on their history of receiving adjuvant chemotherapy or not.Outcome Measurements and Statistical AnalysisPropensity score matching was used to reduce the treatment assignment bias. Multivariable Cox regression model was used for the analysis of overall, cancer-specific, and disease-free survival.Results and LimitationsFor the patients with variant UTUC who underwent adjuvant chemotherapy compared with those without chemotherapy, survival benefit was identified in overall survival in univariate analysis (hazard ratio (HR), 0.527; 95% confidence interval (CI), 0.285–0.973; p = 0.041). In addition, in multivariate analysis, patients with adjuvant chemotherapy demonstrated significant survival benefits in cancer-specific survival (OS; HR, 0.454; CI, 0.208–0.988; p = 0.047), and disease-free survival (DFS; HR, 0.324; 95% CI, 0.155–0.677; (p = 0.003). The main limitations of the current study were its retrospective design and limited case number.ConclusionsAdjuvant chemotherapy following RNU significantly improved cancer-related survivals in patients with UTUC with variant histology.
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- 2021
17. Clinical Efficacy of Adjuvant Chemotherapy in Advanced Upper Tract Urothelial Carcinoma (pT3-T4): Real-World Data from the Taiwan Upper Tract Urothelial Carcinoma Collaboration Group
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Chung-Yu Lin, Han-Yu Weng, Ta-Yao Tai, Hsi-Chin Wu, Wen-Chi Chen, Chung-Hsin Chen, Chao-Yuan Huang, Chi-Wen Lo, Chih-Chin Yu, Chung-You Tsai, Wei-Che Wu, Yuan-Hong Jiang, Yu-Khun Lee, Thomas Y. Hsueh, Allen W. Chiu, Bing-Juin Chiang, Hsu-Che Huang, I-Hsuan Alan Chen, Yung-Tai Chen, Wei-Yu Lin, Chia-Chang Wu, Yao-Chou Tsai, Hsiang-Ying Lee, and Wei-Ming Li
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Medicine (miscellaneous) ,upper tract urothelial carcinoma ,chemotherapy ,prognosis - Abstract
The clinical efficacy of adjuvant chemotherapy in upper tract urothelial carcinoma (UTUC) is unclear. We aimed to assess the therapeutic outcomes of adjuvant chemotherapy in patients with advanced UTUC (pT3-T4) after radical nephroureterectomy (RNU). We retrospectively reviewed the data of 2108 patients from the Taiwan UTUC Collaboration Group between 1988 and 2018. Comprehensive clinical features, pathological characteristics, and survival outcomes were recorded. Univariate and multivariate Cox proportional hazards models were used to evaluate overall survival (OS), cancer-specific survival (CSS), and disease-free survival (DFS). Of the 533 patients with advanced UTUC included, 161 (30.2%) received adjuvant chemotherapy. In the multivariate analysis, adjuvant chemotherapy was significantly associated with a reduced risk of overall death (hazard ratio (HR), 0.599; 95% confidence interval (CI), 0.419–0.857; p = 0.005), cancer-specific mortality (HR, 0.598; 95% CI, 0.391–0.914; p = 0.018), and cancer recurrence (HR, 0.456; 95% CI, 0.310–0.673; p < 0.001). The Kaplan–Meier survival analysis revealed that patients receiving adjuvant chemotherapy had significantly better five-year OS (64% vs. 50%, p = 0.002), CSS (70% vs. 62%, p = 0.043), and DFS (60% vs. 48%, p = 0.002) rates compared to those who did not receive adjuvant chemotherapy. In conclusion, adjuvant chemotherapy after RNU had significant therapeutic benefits on OS, CSS, and DFS in advanced UTUC.
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- 2021
18. Is Lymph Node Dissection Necessary During Radical Nephroureterectomy for Clinically Node-Negative Upper Tract Urothelial Carcinoma? A Multi-Institutional Study
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Hsiang-Ying Lee, Chao-Hsiang Chang, Chi-Ping Huang, Chih-Chin Yu, Chi-Wen Lo, Shiu-Dong Chung, Wei-Che Wu, I-Hsuan Alan Chen, Jen-Tai Lin, Yuan-Hong Jiang, Yu-Khun Lee, Thomas Y. Hsueh, Allen W. Chiu, Yung-Tai Chen, Chang-Min Lin, Yao-Chou Tsai, Wei-Chieh Chen, Bing-Juin Chiang, Hsu-Che Huang, Chung-Hsin Chen, Chao-Yuan Huang, Chia-Chang Wu, Wei Yu Lin, Jen-Shu Tseng, Hung-Lung Ke, and Hsin-Chih Yeh
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Cancer Research ,Oncology - Abstract
PurposeThis study aimed to compare the oncological outcomes of patients with upper tract urothelial carcinoma (UTUC) without clinical lymph node metastasis (cN0) undergoing lymph node dissection (LND) during radical nephroureterectomy (NU).MethodsFrom the updated data of the Taiwan UTUC Collaboration Group, a total of 2726 UTUC patients were identified. We only include patients with ≥ pT2 stage and enrolled 658 patients. The Kaplan–Meier estimator and Cox proportional hazards model were used to analyze overall survival (OS), cancer-specific survival (CSS), disease-free survival (DFS), and bladder recurrence-free survival (BRFS) in LND (+) and LND (−) groups.ResultsA total of 658 patients were included and 463 patients without receiving LND and 195 patients receiving LND. From both univariate and multivariate survival analysis, there are no significant difference between LND (+) and LND (-) group in survival rate. In LND (+) group, 18.5% patients have pathological LN metastasis. After analyzing pN+ subgroup, it revealed worse CSS (p = 0.010) and DFS (p < 0.001) compared with pN0 patients.ConclusionsWe found no significant survival benefit related to LND in cN0 stage, ≥ pT2 stage UTUC, irrespective of the number of LNs removed, although pN+ affected cancer prognosis. However, from the result of pN (+) subgroup of LND (+) cohort analysis, it may be reasonable to not perform LND in patients with cT2N0 stage due to low positive predictive value of pN (+). In addition, performing LND may be considered for ureter cancer, which tends to cause lymphatic and hematogenous tumor spreading. Further large prospective studies are needed to validate our findings.
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- 2021
19. Comparing Oncological Outcomes and Surgical Complications of Hand-Assisted, Laparoscopic and Robotic Nephroureterectomy for Upper Tract Urothelial Carcinoma
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Ching-Chia Li, Chao-Hsiang Chang, Chi-Ping Huang, Jian-Hua Hong, Chao-Yuan Huang, I-Hsuan Alan Chen, Jen-Tai Lin, Chi-Wen Lo, Chih-Chin Yu, Jen-Shu Tseng, Wun-Rong Lin, Wei-Che Wu, Shiu-Dong Chung, Thomas Y. Hsueh, Allen W. Chiu, Yung-Tai Chen, Shin-Hong Chen, Yuan-Hong Jiang, Yao-Chou Tsai, Bing-Juin Chiang, Wei Yu Lin, Yeong-Chin Jou, Chia-Chang Wu, Hsiang-Ying Lee, and Hsin-Chih Yeh
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robotic ,Cancer Research ,medicine.medical_specialty ,Univariate analysis ,Multivariate analysis ,hand-assisted ,Proportional hazards model ,business.industry ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,nephroureterectomy ,Logistic regression ,upper tract urothelial carcinoma ,laparoscopic ,Surgery ,Dissection ,medicine.anatomical_structure ,Oncology ,Statistical significance ,medicine ,business ,Prospective cohort study ,Lymph node ,RC254-282 ,Original Research - Abstract
PurposeThis study aimed to compare the oncological outcomes and surgical complications of patients with upper tract urothelial carcinoma (UTUC) treated with different minimally invasive techniques for nephroureterectomy.MethodsFrom the updated data of the Taiwan UTUC Collaboration Group, a total of 3,333 UTUC patients were identified. After excluding ineligible cases, we retrospectively included 1,340 patients from 15 institutions who received hand-assisted laparoscopic nephroureterectomy (HALNU), laparoscopic nephroureterectomy (LNU) or robotic nephroureterectomy (RNU) between 2001 and 2021. Kaplan-Meier estimator and Cox proportional hazards model were used to analyze the survival outcomes, and binary logistic regression model was selected to compare the risks of postoperative complications of different surgical approaches.ResultsAmong the enrolled patients, 741, 458 and 141 patients received HALNU, LNU and RNU, respectively. Compared with RNU (41.1%) and LNU (32.5%), the rate of lymph node dissection in HALNU was the lowest (17.4%). In both Kaplan-Meier and univariate analysis, the type of surgery was significantly associated with overall and cancer-specific survival. The statistical significance of surgical methods on survival outcomes remained in multivariate analysis, where patients undergoing HALNU appeared to have the worst overall (p = 0.007) and cancer-specific (p = 0.047) survival rates among the three groups. In all analyses, the surgical approach was not related to bladder recurrence. In addition, HALNU was significantly associated with longer hospital stay (p = 0.002), and had the highest risk of major Clavien-Dindo complications (p = 0.011), paralytic ileus (p = 0.012), and postoperative end-stage renal disease (p ConclusionsMinimally invasive surgery can be safe and feasible. We proved that compared with the HALNU group, the LNU and RNU groups have better survival rates and fewer surgical complications. It is crucial to uphold strict oncological principles with sophisticated technique to improve outcomes. Further prospective studies are needed to validate our findings.
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- 2021
20. Tumor distribution affects bladder recurrence but not survival outcome of multifocal upper tract urothelial carcinoma treated with radical nephroureterectomy
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Chao-Hsiang Chang, Yung-Tai Chen, Shiu-Dong Chung, Yeong-Chin Jou, Chi-Wen Lo, Chi-Ping Huang, Jen-Tai Lin, Han-Yu Weng, Zai-Lin Sheu, Yao-Chou Tsai, Jen-Shu Tseng, Wen-Jeng Wu, Thomas Y. Hsueh, Jian-Hua Hong, Hsin Chih Yeh, Bing-Juin Chiang, Ta-Yao Tai, Chung-Hsin Chen, Yuan-Hong Jiang, Wei-Yu Lin, and Chia-Chang Wu
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Male ,medicine.medical_specialty ,Urology ,Science ,Urinary system ,Taiwan ,Urological cancer ,Nephroureterectomy ,Article ,Survival outcome ,Lesion ,Humans ,Medicine ,Distribution (pharmacology) ,Aged ,Urothelial carcinoma ,Upper urinary tract ,Multidisciplinary ,business.industry ,Carcinoma in situ ,medicine.disease ,Survival Analysis ,Urinary Bladder Neoplasms ,Upper tract ,Female ,Neoplasm Recurrence, Local ,medicine.symptom ,business - Abstract
Tumor multifocality and location are prognostic factors for upper tract urothelial carcinoma (UTUC). However, confounding effects can appear when these two factors are analyzed together. Therefore, we aimed to investigate the impact of tumor distribution on the outcomes of multifocal UTUC after radical nephroureterectomy. From the 2780 UTUC patients in the Taiwan UTUC Collaboration Group, 685 UTUC cases with multifocal tumors (defined as more than one tumor lesion in unilateral upper urinary tract) were retrospectively included and divided into three groups: multiple renal pelvic tumors, multiple ureteral tumors, and synchronous renal pelvic and ureteral tumors included 164, 152, and 369 patients, respectively. We found the prevalence of carcinoma in situ was the highest in the synchronous group. In multivariate survival analyses, tumor distribution showed no difference in cancer-specific and disease-free survival, but there was a significant difference in bladder recurrence-free survival. The synchronous group had the highest bladder recurrence rate. In summary, tumor distribution did not influence the cancer-specific outcomes of multifocal UTUC, but synchronous lesions led to a higher rate of bladder recurrence than multiple renal pelvic tumors. We believe that the distribution of tumors reflects the degree of malignant involvement within the urinary tract, but has little significance for survival or disease progression.
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- 2021
21. The Effect of Far-Infrared Therapy on the Peritoneal Membrane Transport Characteristics of Uremic Patients Undergoing Peritoneal Dialysis: An Open-Prospective Proof-of-Concept Study
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Ching Han Yang, Yung Tai Chen, Chih Ching Lin, Chia Hao Chan, Szu Yuan Li, Chyong Mei Chen, Tsung Yueh Wang, Ann Charis Tan, Fan Yu Chen, Tz Heng Chen, Yi Hsin Chou, Ching Po Li, Chun Fan Chen, and Ming Tsun Tsai
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medicine.medical_specialty ,medicine.medical_treatment ,Urology ,Renal function ,Filtration and Separation ,TP1-1185 ,Article ,Peritoneal dialysis ,End stage renal disease ,chemistry.chemical_compound ,Chemical engineering ,far-infrared therapy ,medicine ,Chemical Engineering (miscellaneous) ,Creatinine ,Glucose degradation ,end-stage renal disease ,business.industry ,Process Chemistry and Technology ,Peritoneal membrane ,Chemical technology ,D/P creatinine ratio ,Transporter ,chemistry ,peritoneal dialysis ,peritoneal membrane transport ,TP155-156 ,business - Abstract
Long-term peritoneal dialysis (PD) can lead to detrimental changes in peritoneal membrane function, which may be related to the accumulation of glucose degradation products. A previous study demonstrated that 6 months of far-infrared (FIR) therapy may decrease glucose degradation products in PD dialysate. Due to limited literature on this matter, this study aims to investigate the effect of FIR therapy on the peritoneal membrane transport characteristics of PD patients. Patients were grouped according to baseline peritoneal transport status: lower transporters (low and low-average) and higher transporters (high-average and high). Both groups underwent 40 min of FIR therapy twice daily for 1 year. In lower transporters, FIR therapy increased weekly dialysate creatinine clearance (6.91 L/wk/1.73 m2, p = 0.04) and D/P creatinine (0.05, p = 0.01). In higher transporters, FIR therapy decreased D/P creatinine (−0.05, p = 0.01) and increased D/D0 glucose (0.05, p = 0.006). Fifty percent of high transporter patients shifted to high-average status after FIR therapy. FIR therapy may decrease D/P creatinine for patients in the higher transporter group and cause high transporters to shift to high-average status, which suggests the potential of FIR therapy in improving peritoneal membrane function in PD patients.
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- 2021
22. The Effect of Far-Infrared Therapy on the Peritoneal Expression of Glucose Degradation Products in Diabetic Patients on Peritoneal Dialysis
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Chia Ning Chang, Chia Hao Chan, Tz Heng Chen, Szu Yuan Li, Chih Yuan Niu, Wen Sheng Liu, Chih Ching Lin, Chun Fan Chen, Ann Charis Tan, Yung Tai Chen, Fan Yu Chen, and Guor Jien Wei
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Male ,medicine.medical_treatment ,030232 urology & nephrology ,Gastroenterology ,lcsh:Chemistry ,chemistry.chemical_compound ,0302 clinical medicine ,Dialysis Solutions ,Peritoneal transport rate ,lcsh:QH301-705.5 ,Spectroscopy ,Dialysis adequacy ,Glucose degradation ,Methylglyoxal ,General Medicine ,Middle Aged ,Computer Science Applications ,glucose degradation products ,peritoneal dialysis ,diabetes mellitus ,Female ,Adult ,medicine.medical_specialty ,Encapsulating Peritoneal Sclerosis ,Infrared Rays ,Article ,Catalysis ,Peritoneal dialysis ,Diabetes Complications ,Inorganic Chemistry ,03 medical and health sciences ,far-infrared therapy ,Diabetes mellitus ,Internal medicine ,medicine ,Humans ,Physical and Theoretical Chemistry ,Molecular Biology ,Aged ,business.industry ,Organic Chemistry ,medicine.disease ,Glucose ,lcsh:Biology (General) ,lcsh:QD1-999 ,chemistry ,Kidney Failure, Chronic ,Complication ,business ,030217 neurology & neurosurgery - Abstract
Peritoneal dialysis (PD) is a treatment modality for end-stage renal disease (ESRD) patients. Dextrose is a common osmotic agent used in PD solutions and its absorption may exacerbate diabetes mellitus, a common complication of ESRD. PD solutions also contain glucose degradation products (GDPs) that may lead to encapsulating peritoneal sclerosis (EPS), a severe complication of PD. A previous study showed that far-infrared (FIR) therapy improved a patient’s gastrointestinal symptoms due to EPS. Due to limited literature on the matter, this study aims to investigate dialysate GDPs and peritoneal function in diabetic patients on PD. Thirty-one PD patients were enrolled and underwent 40 min of FIR therapy twice daily for six months. We demonstrated the effect of FIR therapy on the following: (1) decrease of methylglyoxal (p = 0.02), furfural (p = 0.005), and 5-hydroxymethylfurfural (p = 0.03), (2) increase of D/D0 glucose ratio (p = 0.03), and (3) decrease of potassium levels (p = 0.008) in both DM and non-DM patients, as well as (4) maintenance and increase of peritoneal Kt/V in DM and non-DM patients, respectively (p = 0.03). FIR therapy is a non-invasive intervention that can decrease dialysate GDPs in PD patients by improving peritoneal transport rate and solute removal clearance, while also maintaining dialysis adequacy.
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- 2021
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23. Judicious use of sodium-glucose cotransporter 2 inhibitors in patients with diabetes on coronavirus-19 pandemic
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Yuh Lih Chang, Mong Lien Wang, Ann Charis Tan, Chih Ching Lin, Yi Ping Yang, Fan Yu Chen, Teh Ia Huo, Chun Fan Chen, Tz Heng Chen, and Yung Tai Chen
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Pneumonia, Viral ,Blood volume ,Peptidyl-Dipeptidase A ,030204 cardiovascular system & hematology ,Pharmacology ,medicine.disease_cause ,Betacoronavirus ,03 medical and health sciences ,0302 clinical medicine ,Diabetes mellitus ,Diabetes Mellitus ,Humans ,Medicine ,Pandemics ,Sodium-Glucose Transporter 2 Inhibitors ,Coronavirus ,Kidney ,SARS-CoV-2 ,business.industry ,Reabsorption ,Acute kidney injury ,COVID-19 ,General Medicine ,Mini-Review ,medicine.disease ,Coronavirus infection 2019 (COVID-19) ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Sodium/Glucose Cotransporter 2 ,Angiotensin-converting enzyme 2 ,Angiotensin-Converting Enzyme 2 ,Coronavirus Infections ,business ,Angiotensin-converting enzyme ,hormones, hormone substitutes, and hormone antagonists ,Sodium glucose cotransporter-2 inhibitors - Abstract
Sodium glucose cotransporter-2 inhibitors (SGLT2i), a novel antidiabetic drug blocks the reabsorption of glucose in proximal tubules of kidney, are demonstrated to have cardiovascular and renal benefits for people with diabetes. The benefits are associated with the significant increase of intrarenal angiotensin-converting enzyme II (ACE2) expression and blood volume contraction. However, the increased ACE2 may be detrimental to patients infected with the coronavirus infection 2019 (COVID-19), which is found to invade cells via the entry receptor of ACE2. Besides, an SGLT2i-induced natriuretic effect may also increase the risk of acute kidney injury and affect the hemodynamic stability during systemic infection disease. In this article, we explain the mechanisms why the use of SGLT2i in people with diabetes may lead to worse outcomes and suggest clinician to judiciously use it during COVID-19 pandemic.
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- 2020
24. Comparative analysis of patients with upper urinary tract urothelial carcinoma in black-foot disease endemic and non-endemic area
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Yung Tai Chen, Chi Wen Lo, Che Wei Chang, Hsiang Ying Lee, Pai Yu Cheng, Ching Chia Li, Chia Chang Wu, Chung You Tsai, Hsu Che Huang, Chih Chin Yu, and Chien Hui Ou
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Male ,Cancer Research ,medicine.medical_specialty ,Endemic Diseases ,Taiwan ,030232 urology & nephrology ,lcsh:RC254-282 ,Gastroenterology ,Arsenicals ,Disease-Free Survival ,Arsenic ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Surgical oncology ,Internal medicine ,Epidemiology ,Water Pollution, Chemical ,Genetics ,Humans ,Medicine ,Survival analysis ,Aged ,Retrospective Studies ,Upper urinary tract ,Peripheral Vascular Diseases ,Carcinoma, Transitional Cell ,Bladder cancer ,Geography ,Ureteral Neoplasms ,business.industry ,Upper urinary tract urothelial carcinoma ,Incidence ,Incidence (epidemiology) ,Mortality rate ,Medical record ,Middle Aged ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Prognosis ,medicine.disease ,Kidney Neoplasms ,Black foot disease ,Oncology ,030220 oncology & carcinogenesis ,Female ,business ,Clinicopathological features ,Research Article - Abstract
Background A high incidence of upper urinary tract urothelial carcinoma has been reported in the southwestern area of Taiwan, where arsenic water contamination was considered the main cause. However, there is no definite proof to show a correlation between arsenic water contamination and upper urinary tract urothelial carcinoma. To investigate the clinical and epidemiological features of patients with upper urinary tract urothelial carcinoma between arsenic water endemic and non-endemic areas, we analyzed patients in terms of characteristics, stratified overall survival, disease-free survival, and cancer-specific survival. Methods The records of a total of 1194 patients diagnosed with upper urinary tract urothelial carcinoma were retrospectively reviewed. Clinical data and current medical status were collected from the medical records. Statistical analyses were performed to determine the clinical variables and stratified survival curves between endemic and non-endemic groups. Results Female predominance was revealed in both endemic and non-endemic groups (male:female ratio = 1:1.2–1.4). No statistical differences were found in histological types, staging, and tumor size between the two groups. Nonetheless, patients with characteristics of aging and having end-stage renal disease were outnumbered in the non-endemic group, while a higher prevalence of previous bladder tumors and more ureteral tumors were found in the endemic group. Adjusted stratified cumulative survival curves suggested a poorer prognosis in endemic patients, especially in disease-free survival of early stage disease. Conclusions A higher mortality rate with more previous bladder cancer history and ureteral tumors was seen in patients with upper urinary tract urothelial carcinoma residing in the arsenic water contamination area. This may be attributed to the long-term carcinogenic effect of arsenic underground water.
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- 2021
25. Prognostic Significance of Primary Tumor Location in Upper Tract Urothelial Carcinoma Treated with Nephroureterectomy: A Retrospective, Multi-Center Cohort Study in Taiwan
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Yao-Chou Tsai, Lian-Ching Yu, Chi-Wen Lo, Chi-Ping Huang, Ta-Yao Tai, Chao-Hsiang Chang, Wen-Jeng Wu, Chung-You Tsai, Yung-Tai Chen, Bing-Juin Chiang, I-Hsuan Chen, Jen-Shu Tseng, Zai-Lin Sheu, Yu-Khun Lee, Wei-Yu Lin, Han-Yu Weng, Wei-Ming Li, Chia-Chang Wu, Hung-Lung Ke, Hsiang-Ying Lee, Tsu-Ming Chien, Jian-Hua Hong, Hsin Chih Yeh, Thomas Y. Hsueh, Chao-Yuan Huang, and Ching-Chia Li
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medicine.medical_specialty ,Multivariate analysis ,recurrence ,Lymphovascular invasion ,030232 urology & nephrology ,Urology ,lcsh:Medicine ,Article ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Pathological ,tumor location ,business.industry ,lcsh:R ,Retrospective cohort study ,General Medicine ,medicine.disease ,upper tract urothelial carcinoma ,Primary tumor ,Upper tract ,030220 oncology & carcinogenesis ,T-stage ,prognosis ,business ,Cohort study - Abstract
We sought to examine the effect of tumor location on the prognosis of patients with upper tract urothelial carcinoma (UTUC) treated with radical nephroureterectomy (RNU). This retrospective study came from the Taiwan UTUC Collaboration Group, which consisted of 2658 patients at 15 institutions in Taiwan from 1988 to 2019. Patients with kidney-sparing management, both renal pelvic and ureteral tumors, as well as patients lacking complete data were excluded, the remaining 1436 patients were divided into two groups: renal pelvic tumor (RPT) and ureteral tumor (UT), with 842 and 594 patients, respectively. RPT was associated with more aggressive pathological features, including higher pathological T stage (p <, 0.001) and the presence of lymphovascular invasion (p = 0.002), whereas patients with UT often had synchronous bladder tumor (p <, 0.001), and were more likely to bear multiple lesions (p = 0.001). Our multivariate analysis revealed that UT was a worse prognostic factor compared with RPT (overall survival: HR 1.408, 95% CI 1.121&ndash, 1.767, p = 0.003, cancer-specific survival: HR 1.562, 95% CI 1.169&ndash, 2.085, p = 0.003, disease-free survival: HR 1.363, 95% CI 1.095&ndash, 1.697, p = 0.006, bladder-recurrence-free survival: HR 1.411, 95% CI 1.141&ndash, 1.747, p = 0.002, respectively). Based on our findings, UT appeared to be more malignant and had a worse prognosis than RPT.
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- 2020
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26. Long-term prognosis of vascular access in hemodialysis patients with systemic lupus erythematosus: a retrospective cohort study
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Shuo Ming Ou, Fan Yu Chen, Chia Hao Chan, Yung Tai Chen, Ming Tsun Tsai, Wen Sheng Liu, Chun Fan Chen, Ann Charis Tan, Fu An Chen, Tz Heng Chen, Chih Ching Lin, and Szu Yuan Li
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Male ,medicine.medical_specialty ,medicine.medical_treatment ,Science ,Vascular access ,Arteriovenous fistula ,030204 cardiovascular system & hematology ,Risk Assessment ,Article ,End stage renal disease ,End-stage renal disease ,03 medical and health sciences ,Blood Vessel Prosthesis Implantation ,Systemic lupus erythematosus ,0302 clinical medicine ,Arteriovenous Shunt, Surgical ,Renal Dialysis ,Risk Factors ,Internal medicine ,medicine ,Humans ,Lupus Erythematosus, Systemic ,cardiovascular diseases ,Vascular Diseases ,skin and connective tissue diseases ,030203 arthritis & rheumatology ,First episode ,Dialysis adequacy ,Multidisciplinary ,business.industry ,Incidence (epidemiology) ,Graft Occlusion, Vascular ,Retrospective cohort study ,Middle Aged ,medicine.disease ,Prognosis ,Haemodialysis ,Treatment Outcome ,Arteriovenous Fistula ,Medicine ,Kidney Failure, Chronic ,Female ,Hemodialysis ,business - Abstract
Patients with systemic lupus erythematosus (SLE) have a higher risk of vascular complications. This retrospective cohort study aimed to analyze the differences in the risk of arteriovenous fistula or graft (AVF/AVG) dysfunction in hemodialysis patients with and without SLE from Taiwan’s National Health Insurance Database over a 10-year period. AVF/AVG dysfunction is defined as the occurrence of the first episode of intervention after vascular access creation. A total of 1366 HD patients with SLE had higher incidence rates of AVF/AVG dysfunction than 4098 non-SLE HD patients in the following 4 periods: (1) after 1 year (incidence rates = 15.21% and 13.01%, respectively; subdistribution hazard ratio (SHR) = 1.16; P = 0.007), (2) 1st-to-10th-year period (15.36% and 13.25%; SHR = 1.16; P = 0.007), (3) 5th-to-10th-year period (11.91% and 8.1%; SHR = 1.42; P = 0.003), and (4) overall period (23.53% and 21.66%; SHR = 1.09; P = 0.027). In conclusion, there were significantly higher incidence rates of AVF/AVG dysfunction in SLE patients during the long-term follow-up period. Vascular access function should be monitored regularly by clinical examinations, especially after 1 year and during 5 to 10 years, to improve AVF/AVG patency and dialysis adequacy in SLE patients undergoing maintenance hemodialysis.
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- 2020
27. Comparison of oncological outcomes for hand-assisted and pure laparoscopic radical nephroureterectomy: results from the Taiwan Upper Tract Urothelial Cancer Collaboration Group
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Chih-Chin, Yu, Chung-Hsin, Chen, Jian-Hua, Hong, Hung-Lung, Ke, Wei-Ming, Li, Shiu-Dong, Chung, Wei-Che, Wu, Yung-Tai, Chen, Yuan-Hong, Jiang, Yu-Hua, Lin, Wei-Yu, Lin, Chia-Chang, Wu, and Yao-Chou, Tsai
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Male ,Carcinoma, Transitional Cell ,Treatment Outcome ,Urinary Bladder Neoplasms ,Ureteral Neoplasms ,Taiwan ,Humans ,Female ,Laparoscopy ,Nephroureterectomy ,Retrospective Studies - Abstract
Laparoscopic radical nephroureterectomy (LNU) has gradually become the new standard treatment for localized upper tract urothelial cancer (UTUC). With more blunt dissection and tactile sensation, hand-assisted LNU might shorten the operative time compared with the pure laparoscopic approach. However, whether the use of the hand-assisted or the pure laparoscopic approach has an effect on oncological outcomes remains unclear.We retrospectively identified 629 patients with non-metastatic UTUC who underwent hand-assisted (n = 515) or pure LNU (n = 114) at 9 hospitals in Taiwan between 2004 and 2019. Overall survival, cancer-specific survival, recurrence-free survival, and bladder recurrence-free survival were compared between these two groups using inverse-probability of treatment weighting (IPTW) derived from the propensity scores for baseline covariate adjustment.The median follow-up period was 32.9 and 28.7 months in the hand-assisted and the pure groups, respectively. IPTW-adjusted Cox proportional hazards models showed that the laparoscopic approach (pure vs. hand-assisted) was not significantly associated with all-cause mortality (HR 0.79, 95% CI 0.49-1.24, p = 0.304), cancer-specific mortality (HR 0.88, 95% CI 0.51-1.51, p = 0.634), or extra-vesical recurrence (HR 0.65, 95% CI 0.41-1.04, p = 0.071). However, the pure laparoscopic approach was significantly associated with lower intra-vescial recurrence (HR 0.64, 95% CI 0.43-0.96, p = 0.029) for patients who underwent LNU. Kaplan-Meier curves also revealed that the pure laparoscopic approach was associated with better bladder recurrence-free survival compared with the hand-assisted laparoscopic approach in both the original cohort and the IPTW-adjusted cohort (log-rank p = 0.042 and 0.027, respectively).The performance of hand-assisted or pure LNU does not significantly affect the all-cause mortality, cancer-specific mortality, or extra-vesical recurrence for patients with non-metastatic UTUC. However, the hand-assisted laparoscopic approach could increase the risk of intra-vesical recurrence for patients who undergo LNU.
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- 2020
28. Risk of ischemic stroke in patients with end-stage renal disease receiving peritoneal dialysis with new-onset atrial fibrillation
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Szu Yuan Li, Yu Wen Su, Jaw Wen Chen, Yin Hao Lee, Yung Tai Chen, Chun Chin Chang, Shing Jong Lin, Chien Yi Hsu, Po Hsun Huang, Chin Chou Huang, and Hsin Bang Leu
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Adult ,Male ,medicine.medical_specialty ,medicine.medical_treatment ,Population ,Taiwan ,030204 cardiovascular system & hematology ,Peritoneal dialysis ,End stage renal disease ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Internal medicine ,Atrial Fibrillation ,medicine ,Clinical endpoint ,Humans ,education ,Stroke ,Aged ,Ischemic Stroke ,education.field_of_study ,business.industry ,Hazard ratio ,Atrial fibrillation ,General Medicine ,Middle Aged ,medicine.disease ,030220 oncology & carcinogenesis ,Cardiology ,Kidney Failure, Chronic ,Female ,business ,Peritoneal Dialysis ,Cohort study - Abstract
Background The clinical effect of atrial fibrillation (AF)-related ischemic cardiovascular events in patients undergoing peritoneal dialysis (PD) remains uncertain. This study aimed to investigate the risk of ischemic events in patients undergoing PD with new-onset AF compared with that in patients without AF and ascertain the association between the CHA2DS2-VASc score and risk of ischemic stroke. Methods This nationwide, population-based cohort study used data from Taiwan's National Health Insurance Research Database from 1998 to 2011 for patients receiving PD with or without new-onset AF. The clinical endpoints included ischemic stroke, all-cause death, and in-hospital cardiovascular death. Results Patients undergoing PD with new-onset AF (N = 505) had significantly higher risks of ischemic stroke (adjusted hazard ratio [aHR], 1.98; 95% CI, 1.40-2.80), all-cause death (aHR, 1.61; 95% CI, 1.40-1.85), and in-hospital cardiovascular death (aHR, 1.82; 95% CI, 1.50.2.21) compared with those in patients undergoing PD without AF. After considering in-hospital death as a competing risk, AF remained associated with an increased risk of ischemic stroke (hazard ratio [HR], 1.67; 95% CI, 1.17-2.37). The CHA2DS2-VASc score was associated with the risk of ischemic stroke (HR, 1.28; 95% CI, 1.12-1.46). Conclusion The risks of ischemic stroke, all-cause death, and in-hospital cardiovascular death were significantly higher in patients undergoing PD with AF than those in patients without AF. The CHA2DS2-VASc score remained associated with the risk of ischemic stroke in patients undergoing PD with AF.
- Published
- 2020
29. Comparative analysis of patients with upper urinary tract urothelial carcinoma in black-foot disease endemic and non-endemic area
- Author
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Che-Wei Chang, Chien-Hui Ou, Chih-Chin Yu, Chi-Wen Lo, Chung-You Tsai, Pai-Yu Cheng, Yung-Tai Chen, Hsu-Che Huang, Chia-Chang Wu, Wen-Jeng Wu, Ching-Chia Li, Wei-Ming Li, Hung-Lung Ke, and Hsiang-Ying Lee
- Abstract
Objective High incidence of upper urinary tract urothelial carcinoma has been reported in South- Western area of Taiwan, where arsenic water contamination was considered to be the main cause. However, there is no definite proof to show the correlation between the arsenic water contamination and upper urinary tract urothelial carcinoma. To investigate the clinical and epidemiological features of the patients with upper urinary tract urothelial carcinoma between arsenic water endemic and non-endemic areas, we analyzed patients in terms of characteristics, stratified overall survival, disease-free survival and cancer-specific survival Method The records of a total 1194 patients diagnosed with upper urinary tract urothelial carcinoma were retrospectively reviewed. Clinical data and current medical status were collected from medical records. Statistical analyses were performed to determine the clinical variables and stratified survival curves between endemic and non-endemic groups. Results Female predominance was revealed in both endemic and non-endemic groups (Male:Female=1:1.2- 1.4). No statistical differences were found in histological types, staging and tumor size among two groups. Nonetheless, patients with characteristics of aging and having end stage renal disease outnumbered in non-endemic group while higher prevalence of previous bladder tumor and more ureteral tumor were found in endemic group. Adjusted stratified cumulative survival curves suggested poorer prognosis fashion in endemic patients, especially in disease free survival of early stage disease. Conclusions Higher mortality rate with more previous bladder cancer history and ureteral tumor were seen in patients with upper urinary tract urothelial carcinoma residing in arsenic water contamination area. This may attribute to the long-term carcinogenesis effect of arsenic underground water.
- Published
- 2020
30. The advantages of peritoneal dialysis over hemodialysis during the COVID‐19 pandemic
- Author
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Tz Heng Chen, Chih Ching Lin, Yu Hua Wen, Ann Charis Tan, Chun Fan Chen, Fan Yu Chen, and Yung Tai Chen
- Subjects
Infection Control ,medicine.medical_specialty ,2019-20 coronavirus outbreak ,Coronavirus disease 2019 (COVID-19) ,SARS-CoV-2 ,business.industry ,medicine.medical_treatment ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,COVID-19 ,Hemodialysis, Home ,Peritoneal dialysis ,Renal Dialysis ,Nephrology ,Pandemic ,Disease Transmission, Infectious ,Commentary ,medicine ,Humans ,Kidney Failure, Chronic ,Hemodialysis ,business ,Intensive care medicine ,Pandemics ,Peritoneal Dialysis ,Disease transmission - Published
- 2020
- Full Text
- View/download PDF
31. Additional file 1 of Persistence of pregabalin treatment in Taiwan: a nation-wide population-based study
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Yen-Feng Wang, Yung-Tai Chen, Tsai, Ching-Wen, Yen, Yu-Chun, Chen, Yi-Chun, Ben-Chang Shia, and Wang, Shuu-Jiun
- Abstract
Additional file 1: Supplementary Table. The ICD diagnosis codes of indications for pregabalin
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- 2020
- Full Text
- View/download PDF
32. Association between influenza vaccination and the reduced risk of acute kidney injury among older people: A nested case-control study
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Pei Wen Chao, Shu-Chen Kuo, Shuo Ming Ou, Yi Jung Lee, Hung Meng Huang, Yung Tai Chen, and Chia Hsiang Shih
- Subjects
Male ,medicine.medical_specialty ,Databases, Factual ,Influenza vaccine ,Taiwan ,Comorbidity ,030204 cardiovascular system & hematology ,urologic and male genital diseases ,Lower risk ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Influenza, Human ,Epidemiology ,Internal Medicine ,medicine ,Humans ,030212 general & internal medicine ,Aged ,Aged, 80 and over ,business.industry ,Vaccination ,Odds ratio ,Acute Kidney Injury ,Confidence interval ,Logistic Models ,Influenza Vaccines ,Case-Control Studies ,Nested case-control study ,Cohort ,Female ,business ,Risk Reduction Behavior - Abstract
Objective The objective of this study is to determine whether vaccination against influenza is associated with a reduced risk of acute kidney injury (AKI) in a nationwide cohort of adults aged ≥65 years. Methods We investigated a total of 13,270 patients aged ≥65 years who were hospitalized for AKI between 2000 and 2013 from Taiwan's National Health Insurance Research Database. Each AKI case was matched with one control subject according to duration of follow-up, age, sex, monthly income, urbanization level, and baseline comorbidities. Odds ratios (ORs) for AKI associated with exposure to the influenza vaccine in the previous year were calculated in a nested case-control analysis. Results Influenza vaccination in the previous year was associated with a lower risk of AKI (adjusted OR 0.67, 95% confidence interval [CI] 0.63–0.72). Compared with a reference group of unvaccinated individuals with no influenza infection, vaccination with no influenza infection was associated with a lower risk of AKI (adjusted OR 0.68, 95% CI 0.64–0.73). Lack of vaccination and presence of influenza infection was associated with a higher risk of AKI (adjusted OR 1.78, 95% CI 1.57–2.01), whereas the risk of AKI was insignificant in vaccinated patients who developed influenza (adjusted OR 1.01, 95% CI 0.69–1.18). Conclusions The risk of AKI was 37% lower among older people who received vaccination against influenza in a real-world setting. Further work is required to clarify causality.
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- 2018
33. Clinical and Economic Impact of Intensive Care Unit-Acquired Bloodstream Infections in Taiwan: A nationwide population-based retrospective cohort study
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Yung-Chih Wang, Shu-Man Shih, Yung-Tai Chen, Chao A. Hsiung, and Shu-Chen Kuo
- Abstract
Background: To estimate the clinical and economic impact of intensive care unit-acquired bloodstream infections in Taiwan. Methods: The first episodes of intensive care unit-acquired bloodstream infections in patients ≥ 20 years of age in the Taiwanese population were identified in the National Health Insurance Research Database and in the Taiwan Nosocomial Infections Surveillance (2007-2015) dataset. Propensity score-matching (1:2) of demographic data, comorbidities, and disease severity was performed to select a comparison cohort from a pool of intensive care unit patients without intensive care unit-acquired infections from the same datasets. Results: After matching, the in-hospital mortality of 14,369 patients with intensive care unit-acquired bloodstream infections was 44.38%, compared to 33.50% for 28,738 intensive care unit patients without bloodstream infections. The 14-day mortality rate was also higher in the bloodstream infections cohort (4,367, 30.39% vs. 6,860 deaths, 23.87%, respectively; p < 0.001). Furthermore, the patients with intensive care unit-acquired bloodstream infections had a prolonged length of hospitalization after their index date (18 [IQR 7–39] vs. 10 days [IQR 4–21], respectively; p < 0.001) and a higher healthcare cost (16,086 [IQR 9,706–26,131] vs. 10,731 US dollars [IQR 6,375–16,910], respectively; p < 0.001). The excessive hospital stay and healthcare cost per case were 12.77 days and 7,646 US dollars, respectively. Similar results were observed in subgroup analyses of various World Health Organization’s priority pathogens and Candida spp. Conclusions: Intensive care unit-acquired bloodstream infections in critically ill patients were associated with increased mortality, longer hospital stays, and higher healthcare costs.
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- 2019
34. Association between influenza vaccination and reduced risks of major adverse cardiovascular events in elderly patients
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Hau-Hsin Wu, Chia-Jen Shih, Yung Tai Chen, Ming-Hsien Chiang, Te-Li Chen, and Shu-Chen Kuo
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Male ,medicine.medical_specialty ,Influenza vaccine ,Population ,Taiwan ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Influenza, Human ,Odds Ratio ,medicine ,Humans ,cardiovascular diseases ,030212 general & internal medicine ,education ,Aged ,Retrospective Studies ,education.field_of_study ,business.industry ,Incidence ,Incidence (epidemiology) ,Vaccination ,Age Factors ,Case-control study ,Retrospective cohort study ,Odds ratio ,Surgery ,Cardiovascular Diseases ,Influenza Vaccines ,Case-Control Studies ,Female ,Cardiology and Cardiovascular Medicine ,business ,030217 neurology & neurosurgery ,Mace ,Follow-Up Studies - Abstract
This study was conducted to determine the protective effect of influenza vaccine against primary major adverse cardiovascular events (MACEs) in elderly patients, especially those with influenza-like illness (ILI).This retrospective, population-based case-control study of an elderly population (age≥65 years) was conducted using Taiwan's National Health Insurance Research Database (2000-2013). One control was selected for each MACE case (n=80,363 each), matched according to age, year of study entry, and predisposing factors for MACEs. ILI and MACEs (myocardial infarction [MI] and ischemic stroke) were defined according to the International Classification of Diseases, Ninth Revision, Clinical Modification. Odds ratios (ORs) were calculated for the association between MACEs and vaccination.Influenza vaccination received in the previous year was associated with reduced risks of primary MACEs overall (adjusted OR [aOR] 0.80, 95% CI 0.78-0.82, P.001), MI (aOR 0.80, 95% CI 0.76-0.84, P.001), and ischemic stroke (aOR 0.80, 95% CI 0.77-0.82, P.001). ILI diagnosed in the previous year was associated with increased risks of MACEs (aOR 1.24, 95% CI 1.18-1.29, P.001), MI (aOR 1.46, 95% CI 1.34-1.59, P.001), and ischemic stroke (aOR 1.16, 95% CI 1.10-1.22, P.001). Vaccination attenuated the heightened risks associated with ILI (MACEs: aOR 0.99, 95% CI 0.92-1.07, P=.834; MI: aOR 1.05, 95% CI 0.92-1.21, P=.440; ischemic stroke: aOR 0.96, 95% CI 0.89-1.05, P=.398).Results of this study suggest that influenza vaccination is associated with reduced primary MACE risks in the elderly population, including those with ILI.
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- 2017
35. Impact of physical activity on the association between lipid profiles and mortality among older people
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Yung Tai Chen, Der Cherng Tarng, Shuo Ming Ou, and Chia Jen Shih
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Male ,Gerontology ,Science ,Population ,Taiwan ,Physical activity ,030204 cardiovascular system & hematology ,Article ,Cohort Studies ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Humans ,Medicine ,030212 general & internal medicine ,Mortality ,education ,Exercise ,Survival analysis ,Aged ,Aged, 80 and over ,education.field_of_study ,Multidisciplinary ,Cholesterol ,business.industry ,Hazard ratio ,Survival Analysis ,Confidence interval ,chemistry ,Female ,Older people ,business ,Demography ,Cohort study - Abstract
High serum lipid levels are independent predictors of mortality risk in the general population. Recent data suggest that this may not apply in the older populations, and even acts in the opposite direction. In consideration of the frail state, minimum amount of physical activity (60–100 minutes each week) may be more suitable for older individuals but its role in lipid profiles has never been explored. Between 2006 and 2010, we conducted a cohort study of 83,820 participants aged ≥65 years using the Taipei City Elderly Health Examination Database. Participants were classified as inactive, low or high in their level of physical activity. Older individuals with lowest quintile of total cholesterol, non-HDL and HDL were associated with increased risk of all-cause mortality compared to those with other quintile of these lipid profiles. Compared to inactive older individuals, both low (adjusted hazard ratios [aHR] 0.75, 95% confidence interval [CI] 0.70–0.81) and high active older individuals (aHR 0.55, 95% CI 0.51–0.59) were associated with lower risks of mortality. Physical activity, even minimum volume of exercise, in older people has to be encouraged to reduce the increased risk of mortality from low serum lipid levels.
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- 2017
36. Proton-Pump Inhibitor Use and the Risk of First-Time Ischemic Stroke in the General Population: A Nationwide Population-Based Study
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Yen Feng Wang, Yung Tai Chen, Jiing-Chyuan Luo, Jaw Ching Wu, Tzeng Ji Chen, and Shuu Jiun Wang
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Male ,medicine.medical_specialty ,medicine.drug_class ,Population ,Taiwan ,MEDLINE ,Proton-pump inhibitor ,030204 cardiovascular system & hematology ,03 medical and health sciences ,0302 clinical medicine ,Humans ,Medicine ,Longitudinal Studies ,030212 general & internal medicine ,Propensity Score ,education ,Stroke ,Retrospective Studies ,education.field_of_study ,Hepatology ,business.industry ,Gastroenterology ,Case-control study ,Proton Pump Inhibitors ,Retrospective cohort study ,Middle Aged ,medicine.disease ,Case-Control Studies ,Emergency medicine ,Propensity score matching ,Ischemic stroke ,Female ,business - Abstract
An increased risk of adverse cardiovascular events was reported for concomitant use of proton-pump inhibitors (PPIs) in patients taking antiplatelet agents. The present study aimed at determining whether PPI use alone could be associated with first-time ischemic stroke.This was a retrospective nationwide study using database from Taiwan National Health Insurance and involved subjects aged ≥20 years. In propensity score-matched analysis, patients with current PPI use were compared with propensity score-matched PPI non-use controls at a 1:1 ratio. Patients with prior stroke or hospitalization before the index date were excluded. The primary outcome measure was hospitalization with a primary diagnosis of ischemic stroke during 120-day follow-up. A parallel analysis adopting a nested case-control design was carried out. Patients hospitalized for a first-time ischemic stroke were identified and were compared with matched controls using conditional logistic regression analyses focusing on PPI use before the index date.The propensity score-matched analysis included 198,148 PPI treatment courses and control periods without PPI use. PPI use was associated with a higher risk of hospitalization due to ischemic stroke with a hazard ratio of 1.36 (95% confidence interval (CI) 1.14-1.620, P=0.001). Based on subgroup analysis, patients aged60 years were more susceptible (P=0.043 for interaction), whereas gender, history myocardial infarction, diabetes mellitus, hypertension, use of antiplatelet agents of non-steroidal anti-inflammatory drugs, or type of PPIs had no effect on the risk. In the nested case-control analysis, 15,378 patients hospitalized owing to ischemic stroke were identified and were compared with 15,378 matched controls. An association between PPI use and increased cerebrovascular risks was identified, and the adjusted odds ratios for PPI use were 1.77 (95% CI 1.45-2.18, P0.001) within 30 days, 1.65 (95% CI 1.31-2.08, P0.001) between 31 and 90 days, and 1.28 (95% CI 1.03-1.59, P=0.025) between 91 and 180 days before the onset of first-time ischemic stroke.PPI use is associated with an increased risk of first-time ischemic stroke in the general population, and the risk is independent of antiplatelet agents. However, caution should be exercised when considering its clinical relevance as the magnitude of association was modest and a cause-and-effect relationship remained to be established.
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- 2017
37. Statin Therapy Reduces Future Risk of Lower-Limb Amputation in Patients With Diabetes and Peripheral Artery Disease
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Yung Tai Chen, Po Hsun Huang, Chien Yi Hsu, Chun Chin Chang, Yu Wen Su, and Shing Jong Lin
- Subjects
Male ,medicine.medical_specialty ,Statin ,Databases, Factual ,medicine.drug_class ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,Clinical Biochemistry ,Taiwan ,030209 endocrinology & metabolism ,Context (language use) ,Comorbidity ,030204 cardiovascular system & hematology ,Lower risk ,Biochemistry ,Amputation, Surgical ,Cohort Studies ,Peripheral Arterial Disease ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,Diabetes mellitus ,Internal medicine ,Confidence Intervals ,medicine ,Humans ,Propensity Score ,Aged ,Retrospective Studies ,business.industry ,Incidence ,Biochemistry (medical) ,Hazard ratio ,Retrospective cohort study ,Middle Aged ,medicine.disease ,Survival Analysis ,Diabetes Mellitus, Type 2 ,Lower Extremity ,Amputation ,Cardiology ,Female ,Hydroxymethylglutaryl-CoA Reductase Inhibitors ,business ,Risk Reduction Behavior ,Diabetic Angiopathies ,Follow-Up Studies ,Cohort study - Abstract
Context Although there is evidence to support the beneficial effects of statins on major cardiovascular events, few studies address the protective effect of statins on limb outcome. Objective To investigate whether the use of statin is associated with a risk reduction in lower-extremity amputation in type 2 diabetes mellitus (DM) patients with peripheral arterial disease (PAD). Design Observational cohort study. Setting A nationwide DM database in Taiwan from 2000 to 2011. Patients A total of 69,332 patients aged ≥20 years with DM and PAD were identified. Intervention Patients were divided into three groups: 11,409 patients were statin users, 4430 patients used nonstatin lipid-lowering agents, and 53,493 patients were nonusers. Main outcome measures The primary outcome was lower-extremity amputation. Secondary outcomes were in-hospital cardiovascular death and all-cause mortality. Results Compared with nonusers, statin users were associated with lower risks of lower-extremity amputation [adjusted hazard ration (aHR), 0.75; 95% confidence interval (CI), 0.62 to 0.90], in-hospital cardiovascular death (aHR, 0.78; 95% CI, 0.69 to 0.87), and all-cause mortality (aHR, 0.73; 95% CI, 0.69 to 0.77). In the propensity score matching analysis, the effect of statin on the risk of lower-extremity amputation was consistent. Only statin users were associated with the risk reduction of lower-extremities amputation (HR, 0.77; 95% CI, 0.61 to 0.97) and cardiovascular death (HR, 0.78; 95% CI, 0.68 to 0.89) when taking competing risk of death into consideration. Conclusions Compared with statin nonusers who were never treated with lipid-lowering drugs, this study found that statin users had a lower risk of lower-extremity amputation and cardiovascular death in patients with DM and PAD.
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- 2017
38. Association of pre-hospital theophylline use and mortality in chronic obstructive pulmonary disease patients with sepsis
- Author
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Yen-Tao Hsu, Hsi Chu, Peter C. Hou, Shuo-Ming Ou, Ran-Chou Chen, Chia-Jen Shih, Raghu Seethala, Sadeq A. Quraishi, Yu-Ning Shih, Gyorgy Frendl, Yung Tai Chen, and Imoigele P. Aisiku
- Subjects
Male ,Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,medicine.medical_treatment ,Taiwan ,030204 cardiovascular system & hematology ,Lower risk ,law.invention ,Sepsis ,Pulmonary Disease, Chronic Obstructive ,03 medical and health sciences ,0302 clinical medicine ,Theophylline ,Risk Factors ,law ,Internal medicine ,Outcome Assessment, Health Care ,medicine ,Humans ,Hospital Mortality ,Propensity Score ,Aged ,Aged, 80 and over ,Mechanical ventilation ,COPD ,business.industry ,Proportional hazards model ,Middle Aged ,medicine.disease ,Respiration, Artificial ,Intensive care unit ,Bronchodilator Agents ,Hospitalization ,Intensive Care Units ,030228 respiratory system ,Anesthesia ,Cohort ,Female ,business ,medicine.drug - Abstract
Background Although theophylline has been shown to have anti-inflammatory effects, the therapeutic use of theophylline before sepsis is unknown. The aim of our study was to determine the effect of theophylline on COPD patients presenting with sepsis. Methods This nationwide, population-based, propensity score-matched analysis used data from the linked administrative databases of Taiwan's National Health Insurance program. Patients with COPD who were hospitalized for sepsis between 2000 and 2011 were divided into theophylline users and non-users. The primary outcome was 30-day mortality. The secondary outcome was in-hospital death, intensive care unit admission, and need for mechanical ventilation. Cox proportional hazard model and conditional logistic regression were used to calculate the risk between groups. Results A propensity score-matched cohort of 51,801 theophylline users and 51,801 non-users was included. Compared with non-users, the 30-day (HR 0.931, 95% CI 0.910–0.953), 180-day (HR 0.930, 95% CI 0.914–0.946), 365-day (HR 0.944, 95% CI 0.929–0.960) and overall mortality (HR 0.965, 95% CI 0.952–0.979) were all significantly lower in theophylline users. Additionally, the theophylline users also had lower risk of in-hospital death (OR 0.895, 95% CI 0.873–0.918) and need for mechanical ventilation (OR 0.972, 95% CI 0.949–0.997). Conclusions Theophylline use is associated with a lower risk of sepsis-related mortality in COPD patients. Pre-hospital theophylline use may be protective to COPD patients with sepsis.
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- 2017
39. Verapamil Use Is Associated With Reduction of Newly Diagnosed Diabetes Mellitus
- Author
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Yung Tai Chen, Ti Yin, Kai-Wei Katherine Wang, Shu-Chen Kuo, and Yea-Yuan Chang
- Subjects
Adult ,Male ,medicine.medical_specialty ,Endocrinology, Diabetes and Metabolism ,Clinical Biochemistry ,Population ,Taiwan ,Administration, Oral ,030204 cardiovascular system & hematology ,Severity of Illness Index ,Biochemistry ,Drug Administration Schedule ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,Reference Values ,Risk Factors ,Internal medicine ,Humans ,Medicine ,030212 general & internal medicine ,Propensity Score ,education ,Retrospective Studies ,education.field_of_study ,Dose-Response Relationship, Drug ,business.industry ,Incidence ,Incidence (epidemiology) ,Biochemistry (medical) ,Hazard ratio ,Type 2 Diabetes Mellitus ,Retrospective cohort study ,Middle Aged ,Treatment Outcome ,Diabetes Mellitus, Type 2 ,Verapamil ,Case-Control Studies ,Cohort ,Female ,business ,Follow-Up Studies ,medicine.drug ,Cohort study - Abstract
Objective: The mechanism of the beneficial effect of calcium-channel blockers (CCBs), especially verapamil, on the development of type 2 diabetes mellitus (T2DM) has been described. This study compared the incidence of T2DM in adults prescribed oral verapamil and propensity score–matched adults prescribed other oral CCBs. Methods: This retrospective population-based cohort study used Taiwan’s National Health Insurance Research Database from 2000 to 2011. T2DM was defined according to the International Classification of Diseases, Ninth Revision, Clinical Modification. Results: During follow-up periods of 41,958 and 42,118 person-years, 269 of 4930 patients in the verapamil cohort and 340 of 4930 patients in the matched cohort, respectively, developed T2DM. The incidence rates were 6.41 and 8.07 per 1000 population per year among verapamil and other CCB users, respectively. The adjusted hazard ratio (HR) for T2DM associated with use of verapamil (vs. other CCBs) was 0.80 [95% confidence interval (CI), 0.68 to 0.94; P = 0.006]. After exclusion of patients followed for Conclusions: In patients with no known history of diabetes mellitus, oral verapamil use was associated with a decreased incidence of T2DM compared with other CCBs.
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- 2017
40. Predictive factors of post-laparoscopic inguinal hernia acute and chronic pain: prospective follow-up of 807 patients from a single experienced surgeon
- Author
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Chi-Wen, Lo, Yung-Tai, Chen, Fu-Shan, Jaw, Chih-Chin, Yu, and Yao-Chou, Tsai
- Subjects
Adult ,Aged, 80 and over ,Male ,Surgeons ,Pain, Postoperative ,Convalescence ,Hernia, Inguinal ,Middle Aged ,Surgical Mesh ,Young Adult ,Risk Factors ,Humans ,Female ,Laparoscopy ,Prospective Studies ,Chronic Pain ,Herniorrhaphy ,Aged ,Follow-Up Studies ,Pain Measurement - Abstract
Convalescence after hernia repair is one of the main focuses for hernia surgeons. We analyzed our prospectively collected data to identify possible predictive factors for post-operative acute and chronic pain.We prospectively collected the demographic data and peri-operative findings. Post-operative acute pain was evaluated with Visual Analog Pain Scale. The chronic pain (pain persists for 6 months since operation) was also recorded.From June 2008 to August 2018, there were 807 patients with 1029 sites of inguinal hernia enrolled in our analysis. Pain before operation was associated with the severity of acute pain on OP (operation) day, POD 1 (post-operative day 1), and POD 7 (post-operative day 7). Younger patients had significantly higher post-operative acute pain on OP day, POD 1, and POD 7. The staple mesh fixation method resulted in a higher pain score at OP day and POD 1. The predictive factors for chronic pain were sex (female), young age ( 65 years), having no past history of hypertension, pain before operation, and mesh material.A younger age and inguinal pain before operation were the main predictive factors for higher post-operative pain. Younger patients, females, having inguinal pain before surgery, and using heavy weight mesh have a higher risk of chronic pain.
- Published
- 2019
41. Novel robot-assisted laparoscopic total extra-peritoneal repair with primary fascial closure plus pre-peritonea mesh for large groin defects
- Author
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Shih Chieh J. Chueh, Chi Wen Lo, Chih Chin Yu, Yao Chou Tsai, Yung Tai Chen, and Chia Da Lin
- Subjects
Laparoscopic surgery ,Adult ,Male ,medicine.medical_specialty ,medicine.medical_treatment ,Operative Time ,030232 urology & nephrology ,Biophysics ,030230 surgery ,Groin ,03 medical and health sciences ,0302 clinical medicine ,Robotic Surgical Procedures ,medicine ,Humans ,Hernia ,Fascia ,Laparoscopy ,Herniorrhaphy ,Aged ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,Perioperative ,Middle Aged ,Surgical Mesh ,Hernia repair ,medicine.disease ,Computer Science Applications ,Surgery ,body regions ,Inguinal hernia ,surgical procedures, operative ,medicine.anatomical_structure ,Seroma ,Peritoneum ,business - Abstract
BACKGROUND Since the introduction of robot-assisted laparoscopic surgery, a variety of conventional laparoscopic procedures have been explored via this approach. In the robotic era, most of the reported robot-assisted laparoscopic hernia repairs were performed with the trans-abdominal pre-peritoneal approach. According to the evidence extrapolated from laparoscopic ventral hernia repair, simultaneous fascial defect closure and mesh repair can significantly decrease the risk of seroma formation and recurrence over those without fascial closure. Therefore, we describe our novel technique of robot-assisted total extra-peritoneal (TEP) repair with primary fascial closure and pre-peritoneal mesh and its preliminary clinical outcomes. METHODS We retrospectively reviewed our prospectively collected hernia database from October 2017 to July 2019, which included 26 consecutive patients with primary or recurrent groin hernias. Patients' baseline characteristics and perioperative outcomes were compared and analyzed. Perioperative factors included operative time, visual analog scale (VAS) score (0-100), hospital stay, perioperative complications, time to return to normal activity, and the modified Medical Outcome Study (MOS; item 3-12/36 items) score. RESULTS All procedures were completed successfully without conversion to open or conventional laparoscopic surgery. The patients' age ranged from 28 to 74 years (median 57.5). The mean operative time was 115 minutes (range 95-172 min). There were no major procedure-related complications. Only four cases experienced asymptomatic seromas, which were detected by ultrasonography; and all resolved spontaneously within 6 weeks after the operation. The VAS and modified MOSs revealed quick recovery after robot-assisted endoscopic TEP repair. CONCLUSIONS Robot-assisted endoscopic TEP repair combined with primary fascial closure and pre-peritoneal mesh is a safe and feasible technique for groin hernia repair.
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- 2019
42. A comprehensive study comparing tack and glue mesh fixation in laparoscopic total extraperitoneal repair for adult groin hernias
- Author
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Yao Chou Tsai, Shih Chieh J. Chueh, Yung Tai Chen, Chi-Wen Lo, Ching Shui Huang, and Chih Chin Yu
- Subjects
Male ,medicine.medical_specialty ,Visual Analog Scale ,Visual analogue scale ,medicine.medical_treatment ,Hernia, Inguinal ,Groin ,03 medical and health sciences ,Fixation (surgical) ,0302 clinical medicine ,Recurrence ,medicine ,Humans ,Prospective Studies ,GLUE ,Herniorrhaphy ,Pain, Postoperative ,business.industry ,Chronic pain ,Convalescence ,Middle Aged ,Surgical Mesh ,Hernia repair ,medicine.disease ,Surgery ,Inguinal hernia ,medicine.anatomical_structure ,Treatment Outcome ,030220 oncology & carcinogenesis ,Multivariate Analysis ,Linear Models ,030211 gastroenterology & hepatology ,Female ,Laparoscopy ,Chronic Pain ,business ,Abdominal surgery - Abstract
Glue mesh fixation is thought to cause less pain compared to tack mesh fixation during laparoscopic total extraperitoneal inguinal hernia repair (TEP). However, the clinical benefits of glue mesh fixation are still controversial. This study aimed to evaluate the acute pain, chronic pain, and recurrence rate between these two fixation methods. After reviewing all patients in our prospective hernia repair database from February 2008 to December 2017, we identified 583 patients who underwent TEP with tack mesh fixation and 70 patients with glue fixation by a single surgeon. Acute post-operative pain and activity level were evaluated using a Visual Analog Score (VAS) and the modified Medical Outcome Study (MOS) score. The primary endpoint was chronic pain 6 months after TEP. The secondary endpoints were acute pain, activity level, complications, and recurrence. After adjustment for potential confounding factors, the glue mesh fixation had significant lower VAS at 2 h post operation during rest and coughing and on the first day after surgery during coughing (p = 0.005, p
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- 2019
43. Hyperuricemia Predicts an Early Decline in Renal Function among Older People: A Community-Based Cohort Study
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Wei-Cheng Tseng, Chi Hung Lin, Chih Yu Yang, Der-Cherng Tarng, Yung Tai Chen, Yao-Ping Lin, and Shuo-Ming Ou
- Subjects
0301 basic medicine ,Male ,medicine.medical_specialty ,Renal function ,lcsh:Medicine ,Hyperuricemia ,Kidney ,Kidney Function Tests ,Models, Biological ,Article ,Cohort Studies ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Residence Characteristics ,Risk Factors ,Internal medicine ,medicine ,Humans ,lcsh:Science ,Aged ,Proportional Hazards Models ,Multidisciplinary ,business.industry ,Proportional hazards model ,Incidence (epidemiology) ,Incidence ,lcsh:R ,Odds ratio ,medicine.disease ,Confidence interval ,Uric Acid ,030104 developmental biology ,chemistry ,Uric acid ,lcsh:Q ,Female ,business ,030217 neurology & neurosurgery ,Cohort study ,Follow-Up Studies ,Glomerular Filtration Rate - Abstract
Whether elevated serum uric acid levels (SUA) predict renal dysfunction remains controversial in the elderly. Therefore, we investigated the association between SUA and early renal function decline defined as an estimated glomerular filtration rate (eGFR) reduction ≥30% over 2 years. From 2001 to 2010, we conducted a longitudinal cohort study comprising 44,078 participants aged ≥65 years in the Taipei City Elderly Health Examination Database. Participants were classified by 1-mg/dL increment of SUA. We used multivariable logistic and Cox regression analyses to compare the risk of early renal function decline in different SUA groups. Compared to the reference SUA group of 5.0–5.9 mg/dL, hyperuricemic participants had increased risks of eGFR decline, starting at SUA ≥6.0 mg/dL (adjusted odds ratio [aOR] = 1.21, 95% confidence interval [CI] = 1.00–1.45). The risk progressively elevated as SUA increased, with the highest in the SUA ≥10.0 mg/dL group (aOR = 3.20, CI = 2.39–4.28). Multivariable Cox regression further confirmed that hyperuricemia was 1.12-fold (CI = 1.03–1.22, SUA ≥6.0 mg/dL) to 1.6-fold (CI = 1.37–1.86, SUA ≥10.0 mg/dL) more likely to develop early eGFR decline. Hyperuricemia-associated increased risks for early eGFR decline were consistent across subgroup and sensitivity analyses. Collectively, SUA ≥6.0 mg/dL independently predicted early renal dysfunction with eGFR decline ≥30% over 2 years in older people.
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- 2019
44. Use of lipid-lowering agents is not associated with improved outcomes for tuberculosis patients on standard-course therapy: A population-based cohort study
- Author
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Yea Yuan Chang, Shu-Chen Kuo, Pei Wen Chao, and Yung Tai Chen
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0301 basic medicine ,Male ,Bacterial Diseases ,Antitubercular Agents ,Fibrate ,Biochemistry ,Geographical Locations ,Cohort Studies ,Outcome Assessment, Health Care ,Medicine and Health Sciences ,Hypolipidemic Agents ,education.field_of_study ,Multidisciplinary ,Pharmaceutics ,Incidence (epidemiology) ,Incidence ,Fibric Acids ,Drugs ,Middle Aged ,Lipids ,Actinobacteria ,Infectious Diseases ,Research Design ,Cohort ,Tuberculosis Diagnosis and Management ,Medicine ,Drug Therapy, Combination ,Female ,Cohort study ,Research Article ,medicine.medical_specialty ,Tuberculosis ,Statin ,Asia ,medicine.drug_class ,Science ,030106 microbiology ,Population ,Taiwan ,Research and Analysis Methods ,03 medical and health sciences ,Drug Therapy ,Diagnostic Medicine ,Internal medicine ,medicine ,Humans ,education ,Tuberculosis, Pulmonary ,Aged ,Retrospective Studies ,Pharmacology ,Bacteria ,business.industry ,Statins ,Organisms ,Biology and Life Sciences ,medicine.disease ,Tropical Diseases ,Clinical trial ,030104 developmental biology ,People and Places ,Hydroxymethylglutaryl-CoA Reductase Inhibitors ,business ,Mycobacterium Tuberculosis - Abstract
ObjectivesAnimal and ex vitro studies suggested lipid-lowering agents (LLAs) may be used as an adjunct to standard anti- tuberculosis (TB) treatment. No human study has been conducted to date. Using the Taiwan National Health Insurance Research Database (NHIRD), the current population-based cohort study sought to examine the association between use of LLAs and outcomes of patients with pulmonary TB receiving anti-TB treatment.MethodsUsing a NHIRD from 2003 to 2010, this population-based cohort study retrospectively examined the association between LLAs (statins or fibrates) and the outcomes of patients with pulmonary TB receiving anti-TB treatment.ResultsA total of 1452 adult patients newly diagnosed with pulmonary TB during the study period were identified and compared with 5808 matched patients. In the LAA cohort, 1258 received statin, and 295 received fibrate. Compared with patients who did not take LLA, patients who took oral LLAs had similar incidence of treatment completion at 9, 12, and 24 months.ConclusionsNeither statins nor fibrates provide clinical benefit superior to that achieved with standard anti-tuberculosis treatment. Future clinical trials should investigate the effects of statins and fibrates on short-course standard anti-TB therapy.
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- 2019
45. Clinical and economic impact of intensive care unit-acquired bloodstream infections in Taiwan: a nationwide population-based retrospective cohort study
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Yung Tai Chen, Shu-Chen Kuo, Chao A. Hsiung, Yung-Chih Wang, and Shu-Man Shih
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medicine.medical_specialty ,Population ,Taiwan ,bloodstream infection ,intensive care unit ,healthcare costs ,law.invention ,Cohort Studies ,law ,Sepsis ,Intensive care ,Health care ,medicine ,Humans ,education ,Retrospective Studies ,Cross Infection ,education.field_of_study ,business.industry ,Mortality rate ,Retrospective cohort study ,General Medicine ,Length of Stay ,mortality ,Intensive care unit ,hospital stay ,Intensive Care Units ,Infectious Diseases ,Emergency medicine ,Cohort ,Medicine ,business ,Hospital stay - Abstract
ObjectivesTo estimate the clinical and economic impact of intensive care unit-acquired bloodstream infections in Taiwan.DesignRetrospective cohort study.SettingNationwide Taiwanese population in the National Health Insurance Research Database and the Taiwan Nosocomial Infections Surveillance (2007–2015) dataset.ParticipantsThe first episodes of intensive care unit-acquired bloodstream infections in patients ≥20 years of age in the datasets. Propensity score-matching (1:2) of demographic data, comorbidities and disease severity was performed to select a comparison cohort from a pool of intensive care unit patients without intensive care unit-acquired infections from the same datasets.Primary and secondary outcome measuresThe mortality rate, length of hospitalisation and healthcare cost.ResultsAfter matching, the in-hospital mortality of 14 234 patients with intensive care unit-acquired bloodstream infections was 44.23%, compared with 33.48% for 28 468 intensive care unit patients without infections. The 14-day mortality rate was also higher in the bloodstream infections cohort (4323, 30.37% vs 6766 deaths, 23.77%, respectively; pCandida spp.ConclusionsIntensive care unit-acquired bloodstream infections in critically ill patients were associated with increased mortality, longer hospital stays and higher healthcare costs.
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- 2020
46. Dipeptidyl peptidase-4 inhibitors and cardiovascular risks in patients with pre-existing heart failure
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Hung Ta Chen, Shu-Chen Kuo, Yung Tai Chen, Tzeng Ji Chen, Chia Jen Shih, and Shuo Ming Ou
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Male ,medicine.medical_specialty ,Time Factors ,Databases, Factual ,Dipeptidyl Peptidase 4 ,Population ,Myocardial Infarction ,Taiwan ,030204 cardiovascular system & hematology ,Risk Assessment ,Brain Ischemia ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Cause of Death ,Internal medicine ,Diabetes mellitus ,medicine ,Humans ,030212 general & internal medicine ,Myocardial infarction ,Propensity Score ,education ,Stroke ,Aged ,Proportional Hazards Models ,Cause of death ,Heart Failure ,Dipeptidyl-Peptidase IV Inhibitors ,education.field_of_study ,business.industry ,Incidence ,Middle Aged ,Protective Factors ,medicine.disease ,Hospitalization ,Treatment Outcome ,Diabetes Mellitus, Type 2 ,Heart failure ,Cohort ,Physical therapy ,Female ,Cardiology and Cardiovascular Medicine ,business ,Risk assessment - Abstract
Background Although recent clinical trials raised concerns about the risk for heart failure (HF) in dipeptidyl peptidase-4 (DPP-4) inhibitor use, data on the cardiovascular risks in the patients with pre-existing HF are still lacking. Methods We used Taiwan9s National Health Insurance Research Database to identify 196 986 patients diagnosed with type 2 diabetes mellitus (T2DM) who had previous history of HF between 2009 and 2013. This population included 30 204 DPP-4 inhibitor users and 166 782 propensity score-matched DPP-4 inhibitor non-users. The outcomes of interest were all-cause mortality, combination of myocardial infarction (MI) and ischaemic stroke, and hospitalisation for HF. Results The incidence in DPP-4 users compared with non-users was 67.02 vs 102.85 per 1000 person-years for all-cause mortality, 37.89 vs 47.54 per 1000 person-years for the combination of MI and ischaemic stroke, 12.70 vs 16.18 per 1000 person-years for MI and 26.37 vs 32.46 per 1000 person-years for ischaemic stroke. The risk of all-cause mortality was lower in DPP-4 inhibitor users (HR 0.67, 95% CI 0.64 to 0.70), combination of MI and stroke (HR 0.81, 95% CI 0.76 to 0.87), MI (HR 0.80, 95% CI 0.71 to 0.89) and ischaemic stroke (HR 0.83, 95% CI 0.76 to 0.89) than in non-users. Notably, the risk of hospitalisation for HF did not differ significantly between groups. The results were similar after accounting for death as a competing risk. Conclusions In this nationwide T2DM cohort, the risks of mortality and the combination of MI and ischaemic stroke were lower for patients receiving DPP-4 inhibitors than for those who did not receive such treatment. DPP-4 inhibitor use was not associated with a higher risk of hospitalisation for HF even in patients with pre-existing HF.
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- 2016
47. Long-Term Mortality and Major Adverse Cardiovascular Events in Sepsis Survivors. A Nationwide Population-based Study
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Chia Jen Shih, Tzeng Ji Chen, Shuo Ming Ou, Shu-Chen Kuo, Yung Tai Chen, Ching Min Tseng, Hsi Ning Chu, Yi Jung Lee, and Pei Wen Chao
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Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,education.field_of_study ,Proportional hazards model ,business.industry ,Population ,030204 cardiovascular system & hematology ,Critical Care and Intensive Care Medicine ,medicine.disease ,Sudden cardiac death ,Sepsis ,03 medical and health sciences ,0302 clinical medicine ,Heart failure ,Epidemiology ,medicine ,030212 general & internal medicine ,Myocardial infarction ,Intensive care medicine ,business ,education ,Stroke - Abstract
Rationale: Patients with sepsis who survive to hospital discharge may present with ongoing high morbidity and mortality. However, little is known about the risk of long-term, all-cause mortality and cardiovascular outcomes after sepsis.Objectives: Our study aimed to investigate the long-term clinical outcomes in sepsis survivors.Methods: In this nationwide population-based study, data from patients with sepsis were retrieved from Taiwan’s National Health Insurance Research Database between 2000 and 2002. Each sepsis survivor was 1:1 propensity-matched to control subjects from two different control populations: subjects who were in the general population and subjects who were hospitalized for a nonsepsis diagnosis. The primary outcomes were all-cause mortality, major adverse cardiovascular events, myocardial infarction, heart failure, stroke, and sudden cardiac death or ventricular arrhythmia.Measurements and Main Results: Compared with matched population control subjects, sepsis survivors had higher risks...
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- 2016
48. Association Between Use of Dipeptidyl Peptidase-4 Inhibitors and the Risk of Acute Kidney Injury: A Nested Case-Control Study
- Author
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Shuo-Ming Ou, Yuan-Hao Lo, Chia-Jen Shih, Shu-Chen Kuo, Yi-Jung Lee, and Yung Tai Chen
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Male ,medicine.medical_specialty ,Databases, Factual ,Taiwan ,Administration, Oral ,Comorbidity ,Type 2 diabetes ,030204 cardiovascular system & hematology ,Risk Assessment ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Odds Ratio ,medicine ,Humans ,Hypoglycemic Agents ,Longitudinal Studies ,030212 general & internal medicine ,Intensive care medicine ,Aged ,Dipeptidyl-Peptidase IV Inhibitors ,business.industry ,Acute kidney injury ,Case-control study ,General Medicine ,Odds ratio ,Acute Kidney Injury ,medicine.disease ,Diabetes Mellitus, Type 2 ,Case-Control Studies ,Nested case-control study ,Cohort ,Female ,Risk assessment ,business - Abstract
Objective To examine the risk of acute kidney injury (AKI) in a nationwide cohort of patients with type 2 diabetes initiating dipeptidyl peptidase-4 (DPP-4) inhibitors. Patients and Methods This nested case-control study of a cohort of adult DPP-4 inhibitor users with type 2 diabetes who were hospitalized for AKI between January 1, 2010, and December 31, 2013, was conducted using Taiwan's National Health Insurance Research Database. Each AKI case was matched with one control subject according to duration of follow-up, age, sex, urbanization level, monthly income, comorbidity severity, and well-known predisposing factors for AKI. Odds ratios (ORs) for AKI were calculated according to current, recent, or past use of DPP-4 inhibitors. Results A total of 6752 cases with AKI and 6752 matched controls were analyzed. The exposure prevalence of DPP-4 inhibitor use in the previous year was higher among patients with AKI (adjusted OR, 1.20; 95% CI, 1.05-1.36; P =.006). In a stratified analysis, the association was significant for current DPP-4 inhibitor use (adjusted OR, 1.26; 95% CI, 1.08-1.48; P =.004), but not for recent or past use. Conclusion In this large contemporary cohort, DPP-4 inhibitor users had an increased risk of AKI development compared with nonusers. Further research is warranted to investigate the mechanism underlying this association.
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- 2016
49. Observed Blood Pressure and Mortality Among People Aged 65 Years and Older: A Community-Based Cohort Study
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Yung Tai Chen, Chi Hung Lin, Shuo Ming Ou, Der Cherng Tarng, and Chia Jen Shih
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Male ,Gerontology ,Diastole ,030204 cardiovascular system & hematology ,03 medical and health sciences ,0302 clinical medicine ,Outcome Assessment, Health Care ,Humans ,Medicine ,030212 general & internal medicine ,General Nursing ,Aged ,Proportional Hazards Models ,Retrospective Studies ,Cardiovascular mortality ,Proportional hazards model ,business.industry ,Health Policy ,Blood Pressure Determination ,Retrospective cohort study ,General Medicine ,Blood pressure ,Hypertension ,Female ,Observational study ,Geriatrics and Gerontology ,Older people ,business ,Demography ,Cohort study - Abstract
The 2014 Eighth Joint National Committee guidelines for hypertension management emphasize the upper limit of blood pressure (BP) as the target for treatment in the elderly population. Given the uncertainty regarding optimal BP range, we aimed to investigate the association between observed BP and subsequent mortality in older people.We extracted data from 128,765 participants ≥65 years of age who underwent annual health examinations in a retrospective, observational community-based study from 2001 to 2010. Seated BP was measured using an oscillometric device. The outcomes were all-cause and cardiovascular mortality.As compared to participants with systolic BP at 130 to 139 mm Hg, the risk of all-cause mortality was significantly higher among those with110 (adjusted hazard ratios [aHRs], 1.12; 95% confidence interval [CI], 1.05-1.20), 140 to 149 (aHR, 1.08; 95% CI, 1.03-1.14), 150 to 159 (aHR, 1.07; 95% CI, 1.01-1.17), 160 to 169 (aHR, 1.11; 95% CI, 1.04-1.19), and ≥170 mm Hg (aHR, 1.25; 95% CI, 1.17-1.33), whereas the differences were not significant for those with 110 to119 (aHR, 1.06; 95% CI, 1.00-1.12) and 120 to 129 mm Hg (aHR, 1.03; 95% CI, 0.97-1.08). Similarly, diastolic BP at 40 to 79 mm Hg was associated with the lowest risk of all-cause mortality. The J-shaped curve relationship between BP and cardiovascular mortality was also observed.Observed systolic and diastolic BP other than 110 to 139 and 40 to 79 mm Hg, respectively, were associated with a worse outcome. Our large cohort study supports the J-shaped mortality with observed BP in older people.
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- 2016
50. Long-Term Outcomes in Critically Ill Septic Patients Who Survived Cardiopulmonary Resuscitation*
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Yu Ning Shih, Chia Jen Shih, Shu-Chen Kuo, Hsi Ning Chu, Shuo Ming Ou, Szu Yuan Li, Yung Tai Chen, and Pei Wen Chao
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Male ,medicine.medical_specialty ,Time Factors ,Databases, Factual ,Critical Illness ,medicine.medical_treatment ,Taiwan ,Comorbidity ,030204 cardiovascular system & hematology ,Critical Care and Intensive Care Medicine ,Sepsis ,03 medical and health sciences ,Sex Factors ,0302 clinical medicine ,Risk Factors ,Epidemiology ,Long term outcomes ,medicine ,Humans ,Hospital Mortality ,Cardiopulmonary resuscitation ,Intensive care medicine ,Survival rate ,Aged ,Retrospective Studies ,Aged, 80 and over ,business.industry ,Critically ill ,Age Factors ,030208 emergency & critical care medicine ,Middle Aged ,Prognosis ,medicine.disease ,Cardiopulmonary Resuscitation ,Heart Arrest ,Survival Rate ,Cohort ,Female ,Observational study ,business - Abstract
To evaluate the long-term survival rate of critically ill sepsis survivors following cardiopulmonary resuscitation on a national scale.Retrospective and observational cohort study.Data were extracted from Taiwan's National Health Insurance Research Database.A total of 272,897 ICU patients with sepsis were identified during 2000-2010. Patients who survived to hospital discharge were enrolled. Post-discharge survival outcomes of ICU sepsis survivors who received cardiopulmonary resuscitation were compared with those of patients who did not experience cardiopulmonary arrest using propensity score matching with a 1:1 ratio.None.Only 7% (n = 3,207) of sepsis patients who received cardiopulmonary resuscitation survived to discharge. The overall 1-, 2-, and 5-year postdischarge survival rates following cardiopulmonary resuscitation were 28%, 23%, and 14%, respectively. Compared with sepsis survivors without cardiopulmonary arrest, sepsis survivors who received cardiopulmonary resuscitation had a greater risk of all-cause mortality after discharge (hazard ratio, 1.38; 95% CI, 1.34-1.46). This difference in mortality risk diminished after 2 years (hazard ratio, 1.11; 95% CI, 0.96-1.28). Multivariable analysis showed that independent risk factors for long-term mortality following cardiopulmonary resuscitation were male sex, older age, receipt of care in a nonmedical center, higher Charlson Comorbidity Index score, chronic kidney disease, cancer, respiratory infection, vasoactive agent use, and receipt of renal replacement therapy during ICU stay.The long-term outcome was worse in ICU survivors of sepsis who received in-hospital cardiopulmonary resuscitation than in those who did not, but this increased risk of mortality diminished at 2 years after discharge.
- Published
- 2016
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