6 results on '"Löppenberg, Björn"'
Search Results
2. The Impact of Local Treatment on Overall Survival in Patients with Metastatic Prostate Cancer on Diagnosis: A National Cancer Data Base Analysis.
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Löppenberg, Björn, Dalela, Deepansh, Karabon, Patrick, Sood, Akshay, Sammon, Jesse D., Meyer, Christian P., Sun, Maxine, Noldus, Joachim, Peabody, James O., Trinh, Quoc-Dien, Menon, Mani, and Abdollah, Firas
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DIAGNOSIS , *PROSTATE cancer , *PROSTATE cancer treatment , *CANCER-related mortality , *CANCER radiotherapy , *HOSPITAL care - Abstract
Background The role of local treatment (LT) in patients with metastatic prostate cancer (mPCa) at diagnosis is controversial. Objective We set to evaluate the potential impact of LT on overall mortality (OM) in men with mPCa, and how this impact is influenced by tumor and patient characteristics. Design, settings, and participants A total of 15 501 patients with mPCa were identified in the National Cancer Data Base (2004–2012) and categorized in LT (radical prostatectomy or radiation therapy targeted to prostate) versus nonlocal treatment (NLT; all other patients). Outcome measurements and statistical analysis The two arms (LT vs NLT) were matched using propensity scores to minimize selection bias. To evaluate LT impact on OM in relation to baseline characteristics, first multivariable Cox regression analysis was used to predict OM in patients treated with NLT, then interaction between predicted OM risk and LT status was tested. Results and limitations Overall, 9.5% ( n = 1470) of patients received LT. In the postpropensity matched cohorts, 3-yr OM-free survival was higher in the LT group versus the NLT group (69% vs 54%; p < 0.001). In multivariable Cox regression, the NLT group, age, and Charlson comorbidity index were predictors of OM (all p ≤ 0.03). This model was used to predict the 3-yr OM risk. The interaction between predicted OM and LT status was significant ( p < 0.001). The benefit of LT on OM decreased progressively as predicted OM risk increased. Specifically, the 3-yr absolute improvement in OM-free survival was 15.7%, for patients with predicted OM risk ≤20% versus 0% for those with predicted OM risk ≥72%. Conclusions Men with mPCa at diagnosis benefit from LT in terms of OM. This is largely affected by baseline characteristics. Specifically, patients with a relatively low tumor risk and good general health status appear to benefit the most. Patient summary We used a large hospital-based database to evaluate which patients might benefit from local therapy when metastasized prostate cancer was present at diagnosis. Local therapy is associated with a survival benefit in men with less aggressive tumors and good general health. [ABSTRACT FROM AUTHOR]
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- 2017
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3. The Effect of Resident Involvement on Surgical Outcomes for Common Urologic Procedures: A Case Study of Uni- and Bilateral Hydrocele Repair.
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Löppenberg, Björn, Cheng, Philip J., Speed, Jacqueline M., Cole, Alexander P., Vetterlein, Malte W., Kibel, Adam S., Noldus, Joachim, Trinh, Quoc-Dien, and Meyer, Christian P.
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HYDROCELE , *UROLOGY , *SURGICAL complications , *LOGISTIC regression analysis , *PATIENT safety , *THERAPEUTICS , *UROLOGICAL surgery , *INTERNSHIP programs , *LONGITUDINAL method , *CASE studies , *TREATMENT effectiveness , *RETROSPECTIVE studies - Abstract
Objective: Previous studies have investigated the effect of resident involvement (RI) on surgical complications in minimally invasive and complex surgical cases. This study evaluates the effect of surgical education on outcomes in a simple general urologic procedure, unilateral and bilateral hydrocele repair, in a large prospectively collected multi-institutional database.Methods: Relying on the American College of Surgeons National Surgical Quality Improvement Program Participant User files (2005-2013), we extracted patients who underwent unilateral or bilateral hydrocele repair using Current Procedural Terminology codes 55040, 55041, and 55060. Cases with missing information on RI were excluded. Descriptive and logistic regression analyses were performed to assess the impact of RI on perioperative outcomes. A prolonged operative time (pOT) was defined as operative time >75th percentile.Results: Overall, 1378 cases were available for final analyses. The overall complication, readmission, and reoperation rates were 2.3% (32/1378), 0.5% (7/1378), and 1.4% (19/1378), respectively. A pOT was more frequently observed in bilateral procedures (35.2% vs 21.3%, P < .0001) and with RI (33.8% vs 19.0%, P < .0001). Procedures with RI had a 2.2-fold higher odds of pOT (95% confidence interval 1.7-2.8, P < .0001). Overall complications (odds ratio 1.1, 95% confidence interval 0.5-2.3) were not associated with RI (P = .789). In sensitivity analyses, all postgraduate years of training were associated with a pOT (P < .0001).Conclusion: Although the involvement of a resident in hydrocele repairs leads to higher odds of pOT, it does not affect patient safety, as evidenced by similar complication rates. [ABSTRACT FROM AUTHOR]- Published
- 2016
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4. State-by-state Variation in Prostate-specific Antigen Screening Trends Following the 2011 United States Preventive Services Task Force Panel Update.
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Vetterlein, Malte W., Dalela, Deepansh, Sammon, Jesse D., Karabon, Patrick, Sood, Akshay, Jindal, Tarun, Meyer, Christian P., Löppenberg, Björn, Sun, Maxine, Trinh, Quoc-Dien, Menon, Mani, and Abdollah, Firas
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PROSTATE cancer treatment , *PROSTATE cancer patients , *HEALTH surveys , *ANTIGENS , *IMMUNITY - Abstract
Objective: To evaluate state-by-state trends in prostate-specific antigen (PSA) screening prevalence after the 2011 United States Preventive Services Task Force (USPSTF) recommendation against this practice.Methods: We included 222,475 men who responded to the Behavioral Risk Factor Surveillance System 2012 and 2014 surveys, corresponding to early and late post-USPSTF populations. Logistic regression was used to identify predictors of PSA screening and to calculate the adjusted and weighted state-by-state PSA screening prevalence and respective relative percent changes between 2012 and 2014. To account for unmeasured factors, the correlation between changes in PSA screening over time and changes in screening for colorectal and breast cancer were assessed. All analyses were conducted in 2016.Results: Overall, 38.9% (95% confidence interval [CI] = 38.6%-39.2%) reported receiving PSA screening in 2012 vs 35.8% (95% CI = 35.1%-36.2%) in 2014. State of residence, age, race, education, income, insurance, access to care, marital status, and smoking status were independent predictors of PSA screening in both years (all P <.001). In adjusted analyses, the nationwide PSA screening prevalence decreased by a relative 8.5% (95% CI = 6.4%-10.5%; P <.001) between 2012 and 2014. There was a vast state-by-state heterogeneity, ranging from a relative 26.6% decrease in Vermont to 10.2% increase in Hawaii. Overall, 81.5% and 84.0% of the observed changes were not accompanied by matching changes in respective colorectal and breast cancer screening utilization, for which there were no updates in USPSTF recommendations.Conclusion: There is a significant state-by-state variation in PSA screening trends following the 2011 USPSTF recommendation. Further research is needed to elucidate the reasons for this heterogeneity in screening behavior among the states. [ABSTRACT FROM AUTHOR]- Published
- 2018
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5. An Evaluation of the Timing of Surgical Complications Following Radical Cystectomy: Data From the American College of Surgeons National Surgical Quality Improvement Program.
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Sood, Akshay, Kachroo, Naveen, Abdollah, Firas, Sammon, Jesse D., Löppenberg, Björn, Jindal, Tarun, Sun, Maxine, Trinh, Quoc-Dien, Menon, Mani, and Peabody, James O.
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CYSTECTOMY , *PATIENT readmissions , *OUTPATIENT medical care , *FOLLOW-up studies (Medicine) , *COMPARATIVE studies , *DATABASES , *LENGTH of stay in hospitals , *LONGITUDINAL method , *RESEARCH methodology , *MEDICAL cooperation , *MEDICAL societies , *MULTIVARIATE analysis , *QUALITY assurance , *RESEARCH , *SURGICAL complications , *TIME , *EVALUATION research , *BODY mass index , *DISCHARGE planning , *RELATIVE medical risk , *TREATMENT effectiveness , *RETROSPECTIVE studies ,SURGICAL complication risk factors - Abstract
Objective: To examine time-to-event data for 19 common postoperative complications within 30 days following radical cystectomy (RC).Methods: Patients undergoing RC were identified within the American College of Surgeons National Surgical Quality Improvement Program database (2005-2011). The primary end point was time-to-complication; secondary end points included length of stay (LOS), reintervention, readmission, and 30-day mortality. Further, the complications were stratified into pre- and postdischarge, and the predictors were identified. Lastly, the effect of time-to-complication on secondary outcomes was evaluated.Results: Overall, 1118 patients underwent RC. The overall complication rate was 52.1%; the median LOS was 8 days. The vast majority of complications (85.2%) were contained within the first 2 weeks of surgery with a median time-to-complication of 8.5 days; 31.4% of the complications occurred post discharge. In adjusted analyses, increasing age (odds ratio [OR] = 1.02, P < .001), black race (OR = 1.67, P = .001), and creatinine ≥1.2 mg/dL (OR = 1.26, P = .002) were significant predictors of predischarge complications, whereas diabetes (OR = 1.40, P < .001), cardiopulmonary disease (OR = 1.27, P = .005), neoadjuvant therapy (OR = 1.35, P = .007), and continent diversions (OR = 1.30, P = .004) were significant predictors of postdischarge complications. A body mass index of ≥30 was associated with increased odds of pre- as well as postdischarge complications (P < .01). For a given complication, timing did not affect the mortality odds (P = .310), but the risk of reintervention, readmission, and prolonged LOS varied.Conclusion: One in 2 patients suffers a complication within 30 days of undergoing RC. A vast majority of complications occur early on postoperatively, either pre- or post discharge, highlighting the need for rigorous inpatient as well as outpatient surveillance during this period-knowledge regarding the time-to-complications, the effect of time-to-complications, and risk factors may facilitate improved patient-physician communication and allow patient-tailored follow-up. [ABSTRACT FROM AUTHOR]- Published
- 2017
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6. Generalizability of the Prostate Cancer Intervention Versus Observation Trial (PIVOT) Results to Contemporary North American Men with Prostate Cancer.
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Dalela, Deepansh, Karabon, Patrick, Sammon, Jesse, Sood, Akshay, Löppenberg, Björn, Trinh, Quoc-Dien, Menon, Mani, and Abdollah, Firas
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PROSTATE cancer , *PROSTATECTOMY , *PROSTATE surgery , *SENSITIVITY analysis , *LIFE expectancy - Abstract
The Prostate Cancer Intervention Versus Observation Trial (PIVOT) concluded that radical prostatectomy (RP) offered no survival benefit compared with observation in men with clinically localized prostate cancer (PCa). We identified patients within the National Cancer Database (NCDB) for the period 2004-2012 who met the inclusion criteria of PIVOT (ie, histologically confirmed PCa, clinical stage T1–2NxM0, prostate-specific antigen <50 ng/ml, age <75 yr, estimated life expectancy >10 yr, and undergoing RP or observation as initial treatment within 12 mo of diagnosis) to confirm the generalizability of the PIVOT results to the US population. Life expectancy was calculated using the US Social Security Administration life tables and was adjusted for comorbidities at diagnosis. Compared with PIVOT, men in the NCDB were younger (mean age 60.3 vs 67.0 yr) and healthier (Charlson-Deyo comorbidity index of 0: 93% vs 56%; both p < 0.001). Furthermore, 42% of men randomized to receive RP in PIVOT harbored D’Amico low-risk PCa, whereas 32% of men undergoing RP in the NCDB had low-risk disease. Our findings were confirmed in a sensitivity analysis including men regardless of life expectancy but satisfying all other inclusion criteria of PIVOT. Given that the NCDB represents nearly 70% of all incident cancers diagnosed in the United States, our data provide further evidence that PIVOT results may not be generalizable to contemporary clinical practice. Patient summary We observed that men diagnosed with clinically localized prostate cancer within the National Cancer Database (2004–2012) were younger, healthier, and more likely to have radical prostatectomy for higher risk disease than men in the Prostate Cancer Intervention Versus Observation Trial (PIVOT), raising questions about the applicability of PIVOT conclusions to the contemporary US population. [ABSTRACT FROM AUTHOR]
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- 2017
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