31 results on '"Caroline J. Rieser"'
Search Results
2. Patient Factors Limit Colon Cancer Survival at Safety-Net Hospitals: A National Analysis
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Sidrah Khan, Caroline J. Rieser, Richard S. Hoehn, Samer Tohme, Ibrahim Nassour, David S. Medich, Amer H. Zureikat, Lindsay M. Sabik, and Katherine Hrebinko
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Male ,medicine.medical_specialty ,Multivariate analysis ,Databases, Factual ,Colon ,Colorectal cancer ,medicine.medical_treatment ,Population ,Disease ,Adenocarcinoma ,Risk Assessment ,Vulnerable Populations ,Article ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Healthcare Disparities ,education ,Colectomy ,Aged ,Neoplasm Staging ,Retrospective Studies ,Aged, 80 and over ,Medically Uninsured ,education.field_of_study ,business.industry ,Margins of Excision ,Cancer ,Retrospective cohort study ,Middle Aged ,medicine.disease ,Survival Analysis ,United States ,Chemotherapy, Adjuvant ,030220 oncology & carcinogenesis ,Colonic Neoplasms ,Female ,030211 gastroenterology & hepatology ,Surgery ,Lymphadenectomy ,Outcomes research ,business ,Safety-net Providers - Abstract
Background Safety-net hospitals serve a vital role in society by providing care for vulnerable populations. Existing data regarding oncologic outcomes of patients with colon cancer treated at safety-net hospitals are limited and variable. The objective of this study was to delineate disparities in treatment and outcomes for patients with colon cancer treated at safety-net hospitals. Methods This retrospective cohort study identified 802,304 adult patients with colon adenocarcinoma from the National Cancer Database between 2004-2016. Patients were stratified according to safety-net burden of the treating hospital as previously described. Patient, tumor, facility, and treatment characteristics were compared between groups as were operative and short-term outcomes. Cox proportional hazards regression was utilized to compare overall survival between patients treated at high, medium, and low burden hospitals. Results Patients treated at safety-net hospitals were demographically distinct and presented with more advanced disease. They were also less likely to receive surgery, adjuvant chemotherapy, negative resection margins, adequate lymphadenectomy, or a minimally invasive operative approach. On multivariate analysis adjusting for patient and tumor characteristics, survival was inferior for patients at safety-net hospitals, even for those with stage 0 (in situ) disease. Conclusion This analysis revealed inferior survival for patients with colon cancer treated at safety-net hospitals, including those without invasive cancer. These findings suggest that unmeasured population differences may confound analyses and affect survival more than provider or treatment disparities.
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- 2021
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3. Optimal management of patients with operable pancreatic head cancer: A Markov decision analysis
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Alessandro Paniccia, Nathan Bahary, David L Bartlett, Kenneth K. Lee, Kenneth J. Smith, Amer H. Zureikat, Caroline J. Rieser, and Sowmya Narayanan
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Oncology ,endocrine system ,medicine.medical_specialty ,medicine.medical_treatment ,Adenocarcinoma ,Article ,Decision Support Techniques ,Pancreatectomy ,Internal medicine ,Pancreatic cancer ,Antineoplastic Combined Chemotherapy Protocols ,Humans ,Medicine ,Neoadjuvant therapy ,Aged ,Retrospective Studies ,Markov chain ,business.industry ,fungi ,Multimodal therapy ,General Medicine ,Middle Aged ,Prognosis ,medicine.disease ,Pancreaticoduodenectomy ,Combined Modality Therapy ,Markov Chains ,Neoadjuvant Therapy ,Pancreatic Neoplasms ,Survival Rate ,body regions ,Nat ,Cohort ,Surgery ,business ,Carcinoma, Pancreatic Ductal ,Follow-Up Studies ,Decision analysis - Abstract
INTRODUCTION: Neoadjuvant therapy (NAT) is an emerging strategy for operable pancreatic ductal adenocarcinoma (PDAC). While neoadjuvant therapy increases multimodal therapy completion, it risks functional decline and treatment drop out. We used decision analysis to determine optimal management of localized PDAC and consider risks faced by elderly patients. METHODS: A Markov cohort decision analysis model evaluated treatment options for a 60-year-old patient with resectable PDAC: 1) upfront pancreaticoduodenectomy or 2) neoadjuvant therapy (NAT). One-way and probabilistic sensitivity analyses were performed. A sub-analysis considered the scenario of a 75-year-old patient. RESULTS: For the base case, NAT offered an incremental survival gain of 4.6 months compared to SF (overall survival: 26.3 vs 21.7 months). In One-way sensitivity analyses, findings were sensitive to recurrence free survival for NAT patients undergoing adjuvant, probability of completing NAT, and probability of being resectable at exploration after NAT. On probabilistic analysis, NAT was favored in a majority of trials (97%) with a median survival benefit of 5.1 months. In altering the base case for the 75-year-old scenario, NAT had a survival benefit of 3.8 months. CONCLUSIONS: This analysis demonstrates a significant benefit to neoadjuvant therapy in patients with localized PDAC. This benefit persists even in the elderly cohort.
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- 2021
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4. Impact of Socioeconomic Status on Presentation and Outcomes in Colorectal Peritoneal Metastases Following Cytoreduction and Chemoperfusion: Persistent Inequalities in Outcomes at a High-Volume Center
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Caroline J. Rieser, Richard S. Hoehn, Mazen Zenati, Lauren B. Hall, Eliza Kang, Amer H. Zureikat, Andrew Lee, Melanie Ongchin, Matthew P. Holtzman, James F. Pingpank, David L. Bartlett, and M. Haroon A. Choudry
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Correction ,Cytoreduction Surgical Procedures ,Hyperthermia, Induced ,Global Health Services Research ,Combined Modality Therapy ,Survival Rate ,03 medical and health sciences ,0302 clinical medicine ,Social Class ,Oncology ,030220 oncology & carcinogenesis ,Humans ,030211 gastroenterology & hepatology ,Surgery ,Colorectal Neoplasms ,Peritoneal Neoplasms ,Retrospective Studies - Abstract
Background Cytoreductive surgery and hyperthermic intraperitoneal chemoperfusion (CRS HIPEC) can offer significant survival advantage for select patients with colorectal peritoneal metastases (CRPM). Low socioeconomic status (SES) is implicated in disparities in access to care. We analyze the impact of SES on postoperative outcomes and survival at a high-volume tertiary CRS HIPEC center. Patients and Methods We conducted a retrospective cohort study examining patients who underwent CRS HIPEC for CRPM from 2000 to 2018. Patients were grouped according to SES. Baseline characteristics, perioperative outcomes, and survival were examined between groups. Results A total of 226 patients were analyzed, 107 (47%) low-SES and 119 (53%) high-SES patients. High-SES patients were younger (52 vs. 58 years, p = 0.01) and more likely to be White (95.0% vs. 91.6%, p = 0.06) and privately insured (83% vs. 57%, p p = 0.01). Low-SES patients more often presented with synchronous peritoneal metastases (48% vs. 35%, p = 0.05). Following CRS HIPEC, low-SES patients had longer length of stay and higher burden of postoperative complications, 90-day readmission, and 30-day mortality. Median overall survival following CRS HIPEC was worse for low-SES patients (17.8 vs. 32.4 months, p = 0.02). This disparity persisted on multivariate survival analysis (low SES: HR = 1.46, p = 0.03). Conclusions Despite improving therapies for CRPM, low-SES patients remain at a significant disadvantage. Even patients who overcome barriers to care experience worse short- and long-term outcomes. Improving access and addressing these disparities is crucial to ensure equitable outcomes and improve patient care.
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- 2021
5. A Pancreatic Cancer Multidisciplinary Clinic Eliminates Socioeconomic Disparities in Treatment and Improves Survival
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Asif Khalid, Nathan Bahary, Sharon Winters, Lauren Stitt, Adam C. Olson, Richard S. Hoehn, Adam Slivka, Kenneth K. Lee, Ritu Sarkaria, James Ohr, Caroline J. Rieser, Randal E. Brand, Steve Burton, Vikram C. Gorantla, David L. Bartlett, Kenneth E. Fasanella, Jennifer Chennat, Rohit Das, Aatur D. Singhi, Herbert J. Zeh, Anuradha Krishnamurthy, Melissa E. Hogg, John C. Rhee, Susannah G. Ellsworth, Kevin McGrath, Alessandro Paniccia, and Amer H. Zureikat
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medicine.medical_specialty ,medicine.medical_treatment ,Multimodality Therapy ,Article ,03 medical and health sciences ,Pancreatectomy ,0302 clinical medicine ,Surgical oncology ,Internal medicine ,Pancreatic cancer ,medicine ,Humans ,Major complication ,Healthcare Disparities ,Socioeconomic status ,Chemotherapy ,business.industry ,Perioperative ,Pancreaticoduodenectomy ,medicine.disease ,Pancreatic Neoplasms ,Social Class ,Oncology ,030220 oncology & carcinogenesis ,030211 gastroenterology & hepatology ,Surgery ,Neoplasm Recurrence, Local ,business ,Carcinoma, Pancreatic Ductal - Abstract
AIMS: National studies have demonstrated disparities in the treatment and survival of pancreatic cancer patients based on socioeconomic status (SES). This study aimed to identify specific differences in perioperative management and outcomes based on patient SES and to study the role of a multidisciplinary clinic (MDC) in mitigating any variations. METHODS: The study analyzed patients undergoing pancreaticoduodenectomy for pancreatic ductal adenocarcinoma in a large hospital system. The patients were categorized into groups of high and low SES and whether they were managed by the authors’ pancreatic cancer MDC or not. The study compared differences in disease characteristics, receipt of multimodality therapy, perioperative outcomes, and recurrence-free and overall survival. RESULTS: Of the 162 low-SES patients and 119 high-SES patients, 54% were managed in the MDC. Outside the MDC, low-SES patients were less likely to receive neoadjuvant chemotherapy and had less minimally invasive surgery, a longer OR time, less enhanced recovery participation, and more major complications (p
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- 2021
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6. Development and validation of a five-factor score for prediction of pathologic pneumatosis
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Kadie Clancy, Esmaeel R. Dadashzadeh, Christof Kaltenmeier, Robert Handzel, Raquel M. Forsythe, Shandong Wu, Matthew R. Rosengart, J.B. Moses, and Caroline J. Rieser
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Male ,medicine.medical_specialty ,Multivariate statistics ,Radiography ,Critical Care and Intensive Care Medicine ,Logistic regression ,Gastroenterology ,Article ,03 medical and health sciences ,0302 clinical medicine ,Text mining ,Predictive Value of Tests ,Risk Factors ,Internal medicine ,Heart rate ,medicine ,Humans ,Pneumatosis intestinalis ,Pneumatosis Cystoides Intestinalis ,Aged ,Retrospective Studies ,business.industry ,Area under the curve ,030208 emergency & critical care medicine ,Retrospective cohort study ,Middle Aged ,Hospitalization ,Logistic Models ,Female ,Surgery ,medicine.symptom ,Tomography, X-Ray Computed ,business - Abstract
Background The significance of pneumatosis intestinalis (PI) remains challenging. While certain clinical scenarios are predictive of transmural ischemia, risk models to assess the presence of pathologic PI are needed. The aim of this study was to determine what patient factors at the time of radiographic diagnosis of PI predict the risk for pathologic PI. Methods We conducted a retrospective cohort study examining patients with PI from 2010 to 2016 at a multicenter hospital network. Multivariate logistic regression was used to develop a predictive model for pathologic PI in a derivation cohort. Using regression-coefficient-based methods, the final multivariate model was converted into a five-factor-based score. Calibration and discrimination of the score were then assessed in a validation cohort. Results Of 305 patients analyzed, 102 (33.4%) had pathologic PI. We identified five factors associated with pathologic PI at the time of radiographic diagnosis: small bowel PI, age 70 years or older, heart rate 110 bpm or greater, lactate of 2 mmol/L or greater, and neutrophil-lymphocyte ratio 10 or greater. Using this model, patients in the validation cohort were assigned risk scores ranging from 0 to 11. Low-risk patients were categorized when scores are 0 to 4; intermediate, score of 5 to 6; high, score of 7 to 8; and very high risk, 9+. In the validation cohort, very high-risk patients (n = 17; 18.1%) had predicted rates of pathologic pneumatosis of 88.9% and an observed rate of 82.4%. In contrast, patients labeled as low risk (n = 37; 39.4%) had expected rates of pathologic pneumatosis of 1.3% and an observed rate of 0%. The model showed excellent discrimination (area under the curve, 0.90) and good calibration (Hosmer-Lemeshow goodness-of-fit, p = 0.37). Conclusion Our score accurately stratifies patient risk of pathologic pneumatosis. This score has the potential to target high-risk individuals for expedient operation and spare low-risk individuals invasive interventions. Level of evidence Prognostic Study, Level III.
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- 2020
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7. ASO Author Reflections: Understanding Barriers to Complex Cancer Surgery
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Richard S, Hoehn and Caroline J, Rieser
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Neoplasms ,Humans - Published
- 2022
8. Definition and Prediction of Early Recurrence and Mortality Following Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy for Colorectal Peritoneal Metastases: Towards Predicting Oncologic Futility Preoperatively
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Andrew Lee, James F. Pingpank, Matthew P. Holtzman, Shannon Altpeter, Melanie Ongchin, Caroline J. Rieser, David L Bartlett, M. Haroon A. Choudry, Amer H. Zureikat, Lauren B Hall, Eliza Kang, and Heather Jones
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medicine.medical_specialty ,Early Recurrence ,Urology ,Hyperthermic Intraperitoneal Chemotherapy ,Logistic regression ,Article ,Percutaneous Coronary Intervention ,Surgical oncology ,Late Recurrence ,Antineoplastic Combined Chemotherapy Protocols ,medicine ,Humans ,Peritoneal Neoplasms ,Retrospective Studies ,business.industry ,Retrospective cohort study ,Cytoreduction Surgical Procedures ,Hyperthermia, Induced ,Combined Modality Therapy ,Survival Rate ,Oncology ,Cohort ,Surgery ,Hyperthermic intraperitoneal chemotherapy ,Neoplasm Recurrence, Local ,business ,Cytoreductive surgery ,Colorectal Neoplasms ,Medical Futility - Abstract
INTRODUCTION: Early recurrence (ER) is a significant challenge for patients with colorectal peritoneal metastases (CRPM) following cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS HIPEC). Preoperative risk stratification for ER would improve preoperative decision making. METHODS: We conducted a retrospective study examining patients who underwent CRS HIPEC for CRPM from 2000–2018. Optimal definition of ER was determined via minimum p-value approach based on differentiation of post-recurrence survival. Risk factors for ER were assessed in a derivation cohort by uni- and multivariate logistic regression. A predictive score for ER was generated using preoperative variables and validated in an independent cohort. RESULTS: 384 patients were analyzed, 316 (82%) had documented recurrence. Optimal length of post-operative RFS to distinguish ER (n=144, 46%) vs late recurrence (LR) (n=172, 63%) was 8 mos (p20: OR 4.37) were significant predictors of ER (all p
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- 2021
9. Failure to Thrive Following Cytoreduction and Hyperthermic Intraperitoneal Chemotherapy: Causes and Consequences
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Caroline J, Rieser, Jurgis, Alvikas, Heather, Phelos, Lauren B, Hall, Amer H, Zureikat, Andrew, Lee, Melanie, Ongchin, Matthew P, Holtzman, James F, Pingpank, David L, Bartlett, and M Haroon A, Choudry
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Survival Rate ,Postoperative Complications ,Humans ,Female ,Cytoreduction Surgical Procedures ,Hyperthermia, Induced ,Combined Modality Therapy ,Patient Readmission ,Peritoneal Neoplasms ,Failure to Thrive ,Retrospective Studies - Abstract
Failure to thrive (FTT) is a complex syndrome of nutritional failure and functional decline. Readmission for FTT following cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS HIPEC) is common but underexamined. This study aims to determine features, risk factors, and prognostic significance of FTT following CRS HIPEC.We reviewed patients who underwent CRS HIPEC from 2010 to 2018 at our institution. Patients were categorized into no readmission, FTT readmission, and other readmission. FTT was determined by coding and chart review. We compared baseline characteristics, oncologic data, perioperative outcomes, and survival among the three cohorts.Of 1068 discharges examined, 379 patients (36%) were readmitted within 90 days, of which 134 (12.5%) were labeled as FTT. Patients with FTT readmission had worse preoperative functional status, higher rates of malnutrition, more complex resections, longer hospital stays, and more postoperative complications (all p 0.001). Ostomy creation [relative risk ratio (RRR) 4.06], in-hospital venous thromboembolism (VTE), discharge to nursing home (RRR 2.48), pre-CRS HIPEC chemotherapy (RRR 1.98), older age (RRR 1.84), and female gender (RRR 1.69) were all independent predictors for FTT readmission on multinomial regression (all p 0.01). FTT readmission was associated with worse median overall survival on multivariate analysis [hazard ratio (HR) 1.60, p 0.001] after controlling for oncologic, perioperative, and baseline factors.FTT is common following CRS HIPEC and appears to be associated with baseline patient characteristics, operative burden, and postoperative complications. Perioperative strategies for improving nutrition and activity, along with early recognition and intervention in FTT may improve patient outcomes.
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- 2021
10. Medicaid Expansion and the Management of Pancreatic Cancer
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Alessandro Paniccia, Heather M Phelos, Samer Tohme, Richard S. Hoehn, Amer H. Zureikat, Christof Kaltenmeier, Ibrahim Nassour, Sidrah Khan, Lindsay M. Sabik, and Caroline J. Rieser
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Adult ,medicine.medical_specialty ,Malignancy ,Article ,Insurance Coverage ,National cohort ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Pancreatic cancer ,Health insurance ,Medicine ,Humans ,Registries ,Stage (cooking) ,Cancer staging ,Aged ,Neoplasm Staging ,Retrospective Studies ,business.industry ,Medicaid ,Patient Protection and Affordable Care Act ,General Medicine ,Middle Aged ,medicine.disease ,Comorbidity ,United States ,Pancreatic Neoplasms ,Oncology ,030220 oncology & carcinogenesis ,030211 gastroenterology & hepatology ,Surgery ,business - Abstract
BACKGROUND Medicaid expansion under the Affordable Care Act has improved access to screening and treatment for certain cancers. It is unclear how this policy has affected the diagnosis and management of pancreatic cancer. METHODS Using a quasi-experimental difference-in-differences (DID) approach, we analyzed Medicaid and uninsured patients in the National Cancer Data Base during two time periods: pre-expansion (2011-2012) and postexpansion (2015-2016). We investigated changes in cancer staging, treatment decisions, and surgical outcomes. RESULTS In this national cohort, pancreatic cancer patients in expansion states had increased Medicaid coverage relative to those in nonexpansion states (DID = 17.49, p
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- 2021
11. Machine Learning for the Prediction of Pathologic Pneumatosis Intestinalis
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Esmaeel R. Dadashzadeh, J.B. Moses, Kadie Clancy, Robert Handzel, Lauren Rosenblum, Shandong Wu, and Caroline J. Rieser
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Male ,Clinical variables ,Radiography ,Computed tomography ,030230 surgery ,Machine learning ,computer.software_genre ,Article ,Machine Learning ,03 medical and health sciences ,0302 clinical medicine ,Medicine ,Humans ,In patient ,Single institution ,Pneumatosis intestinalis ,Pneumatosis Cystoides Intestinalis ,Aged ,Retrospective Studies ,Models, Statistical ,medicine.diagnostic_test ,business.industry ,Reproducibility of Results ,Retrospective cohort study ,Middle Aged ,Confidence interval ,ROC Curve ,030220 oncology & carcinogenesis ,Surgery ,Female ,Artificial intelligence ,medicine.symptom ,business ,Tomography, X-Ray Computed ,computer - Abstract
The radiographic finding of pneumatosis intestinalis can indicate a spectrum of underlying processes ranging from a benign finding to a life-threatening condition. Although radiographic pneumatosis intestinalis is relatively common, there is no validated clinical tool to guide surgical management.Using a retrospective cohort of 300 pneumatosis intestinalis cases from a single institution, we developed 3 machine learning models for 2 clinical tasks: (1) the distinction of benign from pathologic pneumatosis intestinalis cases and (2) the determination of patients who would benefit from an operation. The 3 models are (1) an imaging model based on radiomic features extracted from computed tomography scans, (2) a clinical model based on clinical variables, and (3) a combination model using both the imaging and clinical variables.The combination model achieves an area under the curve of 0.91 (confidence interval: 0.87-0.94) for task I and an area under the curve of 0.84 (confidence interval: 0.79-0.88) for task II. The combination model significantly (P.05) outperforms the imaging model and the clinical model for both tasks. The imaging model achieves an area under the curve of 0.72 (confidence interval: 0.57-0.87) for task I and 0.68 (confidence interval: 0.61-0.74) for task II. The clinical model achieves an area under the curve of 0.87 (confidence interval: 0.83-0.91) for task I and 0.76 (confidence interval: 0.70-0.81) for task II.This study suggests that combined radiographic and clinical features can identify pathologic pneumatosis intestinalis and aid in patient selection for surgery. This tool may better inform the surgical decision-making process for patients with pneumatosis intestinalis.
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- 2021
12. Current Management of Appendiceal Neoplasms
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Caroline J. Rieser, Nathan Bahary, Jaclyn F. Hechtman, M. Haroon A. Choudry, Nelya Melnitchouk, and Richard S. Hoehn
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Oncology ,medicine.medical_specialty ,Heterogeneous group ,Colorectal cancer ,business.industry ,MEDLINE ,General Medicine ,medicine.disease ,Appendiceal neoplasms ,Review article ,03 medical and health sciences ,0302 clinical medicine ,Current management ,Appendiceal Neoplasms ,030220 oncology & carcinogenesis ,Internal medicine ,medicine ,Humans ,030211 gastroenterology & hepatology ,Neoplasms, Glandular and Epithelial ,business - Abstract
Appendiceal neoplasms include a heterogeneous group of epithelial and nonepithelial tumors that exhibit varying malignant potential. This review article summarizes current diagnostic criteria, classification systems, and optimal therapeutic strategies for the five main histopathologic subtypes of appendiceal neoplasms. In particular, the management of epithelial appendiceal neoplasms has evolved. Although their treatment has historically been extrapolated from colon cancer, improved understanding of their unique histopathologic and molecular characteristics and a growing body of published clinical data support a more nuanced approach to their management.
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- 2021
13. Predictors of early recurrence following neoadjuvant chemotherapy and surgical resection for localized pancreatic adenocarcinoma
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Caroline J. Rieser, David L. Bartlett, Asmita Chopra, Kenneth K.W. Lee, Sowmya Narayanan, Amer H. Zureikat, Alessandro Paniccia, Samer AlMasri, Tracy Daum, Mazen S. Zenati, Katelyn Smith, Nathan Bahary, Vivianne Oyefusi, and Ibrahim Nassour
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Male ,medicine.medical_specialty ,Multivariate analysis ,Early Recurrence ,medicine.medical_treatment ,030230 surgery ,Gastroenterology ,Article ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Pancreatic cancer ,Medicine ,Humans ,Aged ,Neoplasm Staging ,Retrospective Studies ,Chemotherapy ,business.industry ,Hazard ratio ,General Medicine ,Middle Aged ,medicine.disease ,Pancreaticoduodenectomy ,Confidence interval ,Neoadjuvant Therapy ,Pancreatic Neoplasms ,Survival Rate ,Oncology ,030220 oncology & carcinogenesis ,Adenocarcinoma ,Surgery ,Female ,Neoplasm Recurrence, Local ,business ,Carcinoma, Pancreatic Ductal - Abstract
BACKGROUND AND OBJECTIVES Neoadjuvant chemotherapy (NAT) for pancreatic adenocarcinoma (PDAC) is increasingly being utilized. However, a significant number of patients will experience early recurrence, possibly negating the benefit of surgery. We aimed to identify factors implicated in early disease recurrence. METHODS A retrospective review of pancreaticoduodenectomies performed between 2005 and 2017 at our institution for PDAC following NAT was performed. A 6-month cut-off was used to stratify patients into early/late recurrence groups. Multivariate analysis was performed to identify predictors of recurrence. RESULTS Of 273 patients, 64 (23%) developed early recurrence or died within 90 days of surgery. The median time to recurrence was 4 months (95% confidence interval [CI]: 2.2-4.3) in the early group versus 16 months (95% CI: 13.7-19.9) in the late group. The former had higher baseline and post-NAT Ca19-9 levels than the latter (472 vs. 153 IU/ml, p = 0.001 and 71 vs. 39 IU/ml, p = 0.005, respectively). A higher positive lymph node ratio significantly increased the risk of early recurrence (hazard ratio [HR]: 15.9, p
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- 2021
14. Optimal Management of Resectable Pancreatic Head Cancer in the Elderly Patient: Does Neoadjuvant Therapy Offer a Survival Benefit?
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Amer H. Zureikat, David L Bartlett, Kenneth K. Lee, Mazen S. Zenati, Nathan Bahary, Alessandro Paniccia, Caroline J. Rieser, and Sowmya Narayanan
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Oncology ,medicine.medical_specialty ,medicine.medical_treatment ,Adenocarcinoma ,Article ,Pancreatectomy ,Surgical oncology ,Internal medicine ,medicine ,Adjuvant therapy ,Humans ,Neoadjuvant therapy ,Aged ,business.industry ,Hazard ratio ,Cancer ,Perioperative ,medicine.disease ,Pancreaticoduodenectomy ,Neoadjuvant Therapy ,Pancreatic Neoplasms ,Cohort ,Surgery ,business ,Carcinoma, Pancreatic Ductal - Abstract
Neoadjuvant therapy (NAT) is a growing strategy for patients with resectable pancreatic ductal adenocarcinoma (PDAC). Elderly patients are at increased risk of treatment withdrawal due to functional decline, and the benefit of NAT in this cohort remains to be studied. The objective of this study was to compare outcomes of elderly patients with resectable head PDAC who underwent NAT or a surgery-first (SF) approach. All patients 75 years of age and older with radiographically resectable (National Comprehensive Cancer Network criteria) PDAC who underwent pancreaticoduodenectomy at a single institution from 2008 to 2017 were analyzed. Baseline characteristics and perioperative outcomes were compared between the SF and NAT cohorts. Recurrence-free survival and overall survival (OS) were analyzed by treatment strategy. Overall, 158 patients were identified: SF cohort = 90 (57%) and NAT cohort = 68 (43%). Patients in the SF cohort were older (80 vs. 78 years; p = 0.01) but there were no differences in preoperative comorbidities or frailty indices. SF patients had a trend toward higher rates of major complications (38% vs. 24%; p = 0.06) with higher Comprehensive Complication Index totals (20.9 vs. 20; p = 0.03). There were similar rates of adjuvant therapy. NAT was associated with significantly longer OS (24.6 vs. 17.6 months; p = 0.01) in both the intent-to-treat and resected cohorts. On multivariable analysis (MVA), NAT remained an independent predictor of OS (hazard ratio 0.60; p = 0.02). NAT is safe and effective for elderly patients with PDAC. This study suggests NAT is associated with fewer complications after surgery, equal rates of adjuvant therapy receipt, and increased OS over a surgery-first approach.
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- 2021
15. ASO Author Reflections: Understanding Barriers to Complex Cancer Surgery
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Richard S. Hoehn and Caroline J. Rieser
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Oncology ,Surgery - Published
- 2022
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16. Preoperative Systemic Immune-Inflammation Index Predicts Recurrence after Resection of Pancreatic Neuroendocrine Tumors
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Caroline J. Rieser, Amer H. Zureikat, Alessandro Paniccia, Jurgis Alvikas, Andrea J. Ibarra, and Jian Zheng
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medicine.medical_specialty ,business.industry ,Internal medicine ,medicine ,Surgery ,Neuroendocrine tumors ,business ,medicine.disease ,Gastroenterology ,Resection ,Immune inflammation - Published
- 2021
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17. ASO Author Reflections: Improving Our Understanding of Socioeconomic Disparities in Cancer Treatment and Outcomes
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Richard S, Hoehn, Caroline J, Rieser, and Amer H, Zureikat
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Treatment Outcome ,Socioeconomic Factors ,Neoplasms ,Humans - Published
- 2021
18. Predischarge Prediction of Readmission After Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy: Derivation and Validation of a Risk Prediction Score
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Caroline J. Rieser, Amer H. Zureikat, James F. Pingpank, Matthew P. Holtzman, David L Bartlett, M. Haroon A. Choudry, Lauren B Hall, and Eliza Kang
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Peritoneal Surface Malignancy ,medicine.medical_specialty ,Logistic regression ,Patient Readmission ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Internal medicine ,medicine ,Humans ,030212 general & internal medicine ,Derivation ,Retrospective Studies ,Framingham Risk Score ,business.industry ,Area under the curve ,Retrospective cohort study ,Perioperative ,Cytoreduction Surgical Procedures ,Hyperthermia, Induced ,Oncology ,030220 oncology & carcinogenesis ,Peritoneal Cancer Index ,Surgery ,Hyperthermic intraperitoneal chemotherapy ,business - Abstract
Background Ninety-day hospital readmission rates following cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS/HIPEC) range from 20 to 40%. Objective The aim of this study was to develop and validate a simple score to predict readmissions following CRS/HIPEC. Study Design Using a prospectively maintained database, we retrospectively reviewed clinicopathologic, perioperative, and day-of-discharge data for patients undergoing CRS/HIPEC for peritoneal surface malignancies between 2010 and 2018. In-hospital mortalities and discharges to hospice were excluded. Multivariate logistic regression was utilized to identify predictors of unplanned readmission, with three-quarters of the sample randomly selected as the derivation cohort and one-quarter as the validation cohort. Using regression coefficient-based scoring methods, we developed a weighted 7-factor, 10-point predictive score for risk of readmission. Results Overall, 1068 eligible discharges were analyzed; 379 patients were readmitted within 90 days (35.5%). Seven factors were associated with readmission: stoma creation, Peritoneal Cancer Index score ≥ 15, hyponatremia, in-hospital major complication, preoperative chemotherapy, anemia, and discharge to nursing home. In the validation cohort, 25 patients (9.2%) were categorized as high risk for readmission, with a predicted rate of readmission of 69.3% and an observed rate of 76.0%. The score had fair discrimination (area under the curve 0.70) and good calibration (Hosmer–Lemeshow goodness-of-fit p-value of 0.77). Conclusion Our proposed risk score, easily obtainable on day of discharge, distinguishes patients at high risk for readmission over 90 days following CRS/HIPEC. This score has the potential to target high-risk individuals for intensive follow-up and other interventions.
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- 2020
19. Impact of postoperative pancreatic fistula on long-term oncologic outcomes after pancreatic resection
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Mazen S. Zenati, Herbert J. Zeh, Brian A. Boone, Amr Al-abbas, Melissa E. Hogg, Jillian Bonaroti, Caroline J. Rieser, and Amer H. Zureikat
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medicine.medical_specialty ,Multivariate analysis ,030230 surgery ,Gastroenterology ,Article ,Pancreaticoduodenectomy ,03 medical and health sciences ,Pancreatic Fistula ,0302 clinical medicine ,Pancreatectomy ,Postoperative Complications ,Risk Factors ,Internal medicine ,medicine ,Overall survival ,Humans ,Clinical significance ,Pancreatic resection ,Pancreas ,Survival analysis ,Retrospective Studies ,Hepatology ,business.industry ,Retrospective cohort study ,medicine.disease ,Pancreatic fistula ,030220 oncology & carcinogenesis ,Adenocarcinoma ,business - Abstract
Background The short-term morbidity associated with post-operative pancreatic fistula (POPF) is well established, however data regarding the long-term impact are lacking. We aim to characterize long-term oncologic outcomes of POPF after pancreatic resection through a single institution, retrospective study of pancreatic resections performed for adenocarcinoma from 2009 to 2016. Methods Kaplan–Meier survival analysis, logistic regression, and multivariate analysis (MVA) were used to evaluate impact of POPF on overall survival (OS), disease free survival (DFS), and receipt of adjuvant chemotherapy (AC). Results 767 patients were included. 82 (10.6%) developed grade B (n = 67) or C (n = 15) POPF. Grade C POPF resulted in decreased OS when compared to no POPF (20.22 vs 26.33 months, p = 0.027) and to grade B POPF (20.22 vs. 26.87 months, p = 0.049). POPF patients were less likely to receive AC than those without POPF (59.5% vs 74.9%, p = 0.003) and grade C POPF were less likely to receive AC than all others (26.7% vs 74.2%, p = 0.0001). Conclusion POPF patients are less likely to receive AC and more likely to have delay in time to AC. These factors are exacerbated in grade C POPF and likely contribute to decreased OS. These findings validate the clinical significance of the ISGPF definition of POPF.
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- 2020
20. Risk of Venous Thromboembolism for Patients with Pancreatic Ductal Adenocarcinoma Undergoing Preoperative Chemotherapy Followed by Surgical Resection
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Amr Al-abbas, Melissa E. Hogg, Caroline J. Rieser, Matthew D. Neal, Amer H. Zureikat, Mazen S. Zenati, Brian A. Boone, Ahmad Hamad, and Herbert J. Zeh
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Male ,medicine.medical_specialty ,Deep vein ,medicine.medical_treatment ,Preoperative care ,03 medical and health sciences ,Pancreatectomy ,0302 clinical medicine ,Risk Factors ,Antineoplastic Combined Chemotherapy Protocols ,Preoperative Care ,medicine ,Humans ,cardiovascular diseases ,Superior mesenteric vein ,Survival rate ,Neoadjuvant therapy ,Aged ,Retrospective Studies ,business.industry ,Venous Thromboembolism ,Perioperative ,Prognosis ,medicine.disease ,Combined Modality Therapy ,Thrombosis ,Neoadjuvant Therapy ,Pulmonary embolism ,Surgery ,Pancreatic Neoplasms ,Survival Rate ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,Female ,030211 gastroenterology & hepatology ,business ,Carcinoma, Pancreatic Ductal ,Follow-Up Studies - Abstract
Pancreatic ductal adenocarcinoma (PDA) is associated with a hypercoagulable state, resulting in a high risk of venous thromboembolism (VTE). Risk of VTE is well established for patients receiving chemotherapy for advanced disease and during the perioperative period for patients undergoing surgical resection. However, data are lacking for patients undergoing neoadjuvant treatment followed by resection, who may have a unique risk of VTE because of exposure to both chemotherapy and surgery. The study included patients with PDA who underwent neoadjuvant therapy followed by surgery from 2007 to June 2017. Development of VTE was evaluated from the start of treatment through the 90-day postoperative period. Risk factors including demographic, treatment, and laboratory variables were evaluated. The study investigated 426 patients receiving neoadjuvant therapy before surgical resection. Of these patients, 20% had a VTE within 90 days postoperatively (n = 87), and 70% of the VTE occurred during the postoperative period. The VTE included pulmonary embolism (30%), deep vein thrombosis (33%), and thrombosis of the portal vein (PV)/superior mesenteric vein (SMV) (40%). A pretreatment hemoglobin level lower than 10 g/dL and a platelet count higher than 443 were independently associated with VTE during neoadjuvant treatment. The independent predictors of postoperative VTE were a body mass index higher than 35 kg/m2, a preoperative platelet-to-lymphocyte ratio higher than 260, resection with distal pancreatectomy with celiac axis resection/total pancreatectomy, PV/SMV resection, and longer operative times. Development of VTE was associated with worse overall and disease-free survival and an independent predictor of survival and decreased likelihood of receiving adjuvant chemotherapy. Venous thromboembolism during neoadjuvant therapy and the subsequent perioperative period is common and has a significant impact on outcome. Further study into novel thromboprophylaxis measures or protocols during neoadjuvant treatment and the perioperative period is warranted.
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- 2019
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21. Comprehensive comparative analysis of cost-effectiveness and perioperative outcomes between open, laparoscopic, and robotic distal pancreatectomy
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Deepa Magge, Amer H. Zureikat, Ahmad Hamad, Mazen S. Zenati, Herbert J. Zeh, Melissa E. Hogg, and Caroline J. Rieser
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Male ,Comparative Effectiveness Research ,medicine.medical_specialty ,Time Factors ,Databases, Factual ,Cost effectiveness ,Cost-Benefit Analysis ,Operative Time ,Comparative effectiveness research ,030230 surgery ,03 medical and health sciences ,Pancreatectomy ,Postoperative Complications ,0302 clinical medicine ,Robotic Surgical Procedures ,Cost Savings ,Operating time ,Humans ,Medicine ,In patient ,Hospital Costs ,Aged ,Retrospective Studies ,Hepatology ,business.industry ,Gastroenterology ,Retrospective cohort study ,Perioperative ,Length of Stay ,Middle Aged ,Conversion to Open Surgery ,Surgery ,Treatment Outcome ,030220 oncology & carcinogenesis ,Cohort ,Female ,Laparoscopy ,Distal pancreatectomy ,business - Abstract
NSQIP data show that half of distal pancreatectomies (DP) are performed by a minimally invasive approach (MIS). Advantages have been demonstrated for MIS DP, yet comparative cost data are limited. Outcomes and cost were compared in patients undergoing open (ODP), laparoscopic (LDP), and robotic (RDP) approaches at a single institution.A retrospective review was performed on patients undergoing DP between 1/2010-5/2016. Analysis was intention-to-treat, and cost was available after 1/2013.DP was performed in 374 patients: ODP = 85, LDP = 93, and RDP = 196. Operating time was lowest in the RDP cohort (p 0.0001). ODP had higher estimated blood loss (p 0.0001) and transfusions (p 0.0001) than LDP and RDP. LDP had greater conversions to open procedures than RDP (p = 0.001). Postoperative outcomes were similar between groups. Length of stay was higher in the ODP group (p = 0.0001) than LDP and RDP. Overall cost for the ODP was higher than the RDP and LDP group (p = 0.002). On multivariate analysis, RDP reduced LOS (ODP: Odds = 6.5 [p = 0.0001] and LDP: Odds = 2.1 [p = 0.036]) and total cost (ODP: Odds = 5.7 [p = 0.002] and LDP: Odds = 2.8 [p = 0.042]) independently of all demographics and illness covariates.A robotic approach is associated with reduced length of stay and cost compared to open and laparoscopic procedures.
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- 2018
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22. ASO Visual Abstract: Failure to Thrive Following Cytoreduction and Hyperthermic Intraperitoneal Chemotherapy: Causes and Consequences
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Caroline J. Rieser, Jurgis Alvikas, Heather Phelos, Lauren B. Hall, Amer H. Zureikat, Andrew Lee, Melanie Ongchin, Matthew P. Holtzman, James F. Pingpank, David L. Bartlett, and M. Haroon A. Choudry
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Oncology ,Surgery - Published
- 2022
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23. ASO Visual Abstract: A Pancreatic Cancer Multidisciplinary Clinic Eliminates Socioeconomic Disparities in Treatment and Improves Survival
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Adam Slivka, Nathan Bahary, Kenneth E. Fasanella, Anuradha Krishnamurthy, Ritu Sarkaria, James Ohr, Herbert J. Zeh, Lauren Stitt, Kenneth K. Lee, Alessandro Paniccia, Adam C. Olson, Richard S. Hoehn, Steve Burton, Jennifer Chennat, Susannah G. Ellsworth, Kevin McGrath, Melissa E. Hogg, Vikram C. Gorantla, Rohit Das, Asif Khalid, David L. Bartlett, Caroline J. Rieser, Randal E. Brand, John C. Rhee, Sharon Winters, Amer H. Zureikat, and Aatur D. Singhi
- Subjects
medicine.medical_specialty ,Oncology ,Multidisciplinary approach ,Surgical oncology ,business.industry ,Pancreatic cancer ,medicine ,MEDLINE ,Surgery ,medicine.disease ,Intensive care medicine ,business ,Socioeconomic status - Published
- 2021
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24. ASO Author Reflections: Improving Our Understanding of Socioeconomic Disparities in Cancer Treatment and Outcomes
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Caroline J. Rieser, Amer H. Zureikat, and Richard S. Hoehn
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medicine.medical_specialty ,Oncology ,Surgical oncology ,business.industry ,Family medicine ,medicine ,Surgery ,business ,Socioeconomic status ,Cancer treatment - Published
- 2021
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25. Simplified preoperative tool predicting discharge destination after major oncologic gastrointestinal surgery
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Rajesh Ramanathan, Salem Rustom, Brian J. Kaplan, Luke G. Wolfe, Caroline J. Rieser, Saba Kurtom, and Revathy Subramany
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medicine.medical_specialty ,business.industry ,Frailty Index ,Cancer ,Rectum ,General Medicine ,medicine.disease ,Article ,Frailty assessment ,Discharge rate ,Surgery ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,Extended care ,Medicine ,030211 gastroenterology & hepatology ,Esophagus ,business ,Cancer surgery - Abstract
Background Preoperatively identifying patients who will require discharge to extended care facilities (ECFs) after major cancer surgery is valuable. This study compares existing models and derives a simple, preoperative tool for predicting discharge destination after major oncologic gastrointestinal surgery. Methods The American College of Surgeon National Surgical Quality Improvement datasets were used to evaluate existing risk stratification and frailty assessment tools between the years 2011 and 2015. A novel tool for predicting discharge to ECF was developed in the 2011-2015 dataset and subsequently validated in the 2016 dataset. Results Major resections were analyzed for 61 683 malignancies: 6.9% esophagus, 5.3% stomach, 20.0% liver, 21.0% pancreas, and 46.8% colon/rectum. The overall ECF discharge rate was 9.1%. The American Society of Anesthesiologist score, 11-point modified frailty index (mFI), and 5-point abbreviated modified frailty index (amFI) demonstrated only moderate discrimination in predicting ECF discharge (c-statistic: 0.63-0.65). In contrast, our weighted cancer cancer abbreviated modified frailty index (camFI) score demonstrated improved discrimination with c-statistic of 0.73. The camFI displayed >90% negative predictive value for ECF discharge at every operative site. Conclusion The camFI is a simple tool that can be used preoperatively to counsel patients on their risk of ECF discharge, and to identify patients with the least need for ECF discharge after major oncologic gastrointestinal surgery.
- Published
- 2019
26. CA19-9 Change During Neoadjuvant Therapy May Guide the Need for Additional Adjuvant Therapy Following Resected Pancreatic Cancer
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Nathan Bahary, Caroline J. Rieser, Herbert J. Zeh, Mazen S. Zenati, Kenneth K. Lee, Amer H. Zureikat, Hao Liu, Aatur D. Singhi, Amr Al-abbas, and Melissa E. Hogg
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Oncology ,Male ,medicine.medical_specialty ,endocrine system ,endocrine system diseases ,CA-19-9 Antigen ,medicine.medical_treatment ,Adenocarcinoma ,Article ,03 medical and health sciences ,0302 clinical medicine ,Pancreatectomy ,Surgical oncology ,Internal medicine ,Pancreatic cancer ,Adjuvant therapy ,Medicine ,Humans ,Prospective Studies ,Prospective cohort study ,Neoadjuvant therapy ,Aged ,Retrospective Studies ,business.industry ,Hazard ratio ,fungi ,Middle Aged ,medicine.disease ,digestive system diseases ,Neoadjuvant Therapy ,body regions ,Pancreatic Neoplasms ,Nat ,030220 oncology & carcinogenesis ,030211 gastroenterology & hepatology ,Surgery ,CA19-9 ,Female ,business - Abstract
BACKGROUND: Neoadjuvant therapy (NAT) is increasingly utilized for pancreatic cancer, however the added benefit of adjuvant therapy (AT) in this setting is unknown. We hypothesized that the magnitude of CA19-9 response to NAT can guide the need for further AT in resected pancreatic cancer. METHODS: CA19-9 secretors who received NAT for pancreatic cancer during 2008–2016 at a single institution were analyzed and CA19-9 response (difference between pre and post NAT values) was measured. Kaplan-Meier estimators and Cox proportional hazard ratio models were used to determine the optimal CA19-9 response at which AT ceases to confer any additional survival benefit after NAT. RESULTS: A total of 241 patient (mean age 65.4yrs, 50% female) with complete CA19-9 data who underwent NAT followed by resection were analyzed. In a cohort of patients (n=78) in whom CA19-9 normalized with a decrease >50% after NAT (optimal responders), AT was not associated with additional survival benefit (40.6 versus 39.0 months, p=0.815). Conversely, in the cohort of patients (n=163) in whom NAT was not associated with normalization and decrease ≤50% in CA19-9 (sub-optimal responders), receipt of AT was associated with a survival benefit (34.5 versus 19.1 months, p50% during NAT to predict no additional survival benefit from adjuvant therapy. CONCLUSIONS: The magnitude of CA19-9 response to NAT may predict the need for further adjuvant therapy in resected pancreatic cancer. Prospective studies are needed to elucidate the optimal interplay of NAT and AT in pancreatic cancer.
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- 2019
27. Prognostic Value of the Systemic Immune-Inflammation Index (SII) After Neoadjuvant Therapy for Patients with Resected Pancreatic Cancer
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Pranav Murthy, Amr I. Al Abbas, Mazen S. Zenati, Nathan Bahary, Michael T. Lotze, Amer H. Zureikat, Brian A. Boone, Caroline J. Rieser, and Herbert J. Zeh
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Oncology ,Male ,medicine.medical_specialty ,endocrine system ,Lymphocyte ,medicine.medical_treatment ,Article ,03 medical and health sciences ,0302 clinical medicine ,Pancreatectomy ,Pancreatic tumor ,Surgical oncology ,Internal medicine ,Pancreatic cancer ,Antineoplastic Combined Chemotherapy Protocols ,medicine ,Humans ,Neoadjuvant therapy ,Aged ,Retrospective Studies ,business.industry ,Hazard ratio ,fungi ,Middle Aged ,medicine.disease ,Prognosis ,Confidence interval ,Neoadjuvant Therapy ,Systemic Inflammatory Response Syndrome ,body regions ,Pancreatic Neoplasms ,Survival Rate ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Biomarker (medicine) ,030211 gastroenterology & hepatology ,Surgery ,Female ,business ,Carcinoma, Pancreatic Ductal ,Follow-Up Studies - Abstract
BACKGROUND. The systemic immune-inflammation index (SII), calculated using absolute platelet, neutrophil, and lymphocyte counts, has recently emerged as a predictor of survival for patients with pancreatic ductal adenocarcinoma (PDAC) when assessed at diagnosis. Neoadjuvant therapy (NAT) is increasingly used in the treatment of PDAC. However, biomarkers of response are lacking. This study aimed to determine the prognostic significance of SII before and after NAT and its association with the pancreatic tumor biomarker carbohydrate-antigen 19–9 (CA 19–9). METHODS. This study retrospectively analyzed all PDAC patients treated with NAT before pancreatic resection at a single institution between 2007 and 2017. Pre- and post-NAT lab values were collected to calculate SII. Absolute pre-NAT, post-NAT, and change in SII after NAT were evaluated for their association with clinical outcomes. RESULTS. The study analyzed 419 patients and found no significant correlation between pre-NAT SII and clinical outcomes. Elevated post-NAT SII was an independent, negative predictor of overall survival (OS) when assessed as a continuous variable (hazard ratio [HR], 1.0001; 95% confidence interval [CI] 1.00003–1.00014; p = 0.006). Patients with a post-NAT SII greater than 900 had a shorter median OS (31.9 vs 26.1 months; p = 0.050), and a post-NAT SII greater than 900 also was an independent negative predictor of OS (HR, 1.369; 95% CI 1.019–1.838; p = 0.037). An 80% reduction in SII independently predicted a CA 19–9 response after NAT (HR, 4.22; 95% CI 1.209–14.750; p = 0.024). CONCLUSION. Post-treatment SII may be a useful prognostic marker in PDAC patients receiving NAT.
- Published
- 2019
28. Correction to: Impact of Socioeconomic Status on Presentation and Outcomes in Colorectal Peritoneal Metastases Following Cytoreduction and Chemoperfusion: Persistent Inequalities in Outcomes at a High-Volume Center
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Matthew P. Holtzman, Amer H. Zureikat, Melanie Ongchin, David L Bartlett, Caroline J. Rieser, James F. Pingpank, Andrew Lee, Mazen S. Zenati, M. Haroon A. Choudry, Richard S. Hoehn, Eliza Kang, and Lauren B Hall
- Subjects
Multivariate survival analysis ,medicine.medical_specialty ,business.industry ,MEDLINE ,Retrospective cohort study ,Perioperative ,03 medical and health sciences ,0302 clinical medicine ,Oncology ,Surgical oncology ,030220 oncology & carcinogenesis ,Internal medicine ,Baseline characteristics ,medicine ,Overall survival ,030211 gastroenterology & hepatology ,Surgery ,business ,Socioeconomic status - Abstract
Cytoreductive surgery and hyperthermic intraperitoneal chemoperfusion (CRS HIPEC) can offer significant survival advantage for select patients with colorectal peritoneal metastases (CRPM). Low socioeconomic status (SES) is implicated in disparities in access to care. We analyze the impact of SES on postoperative outcomes and survival at a high-volume tertiary CRS HIPEC center. We conducted a retrospective cohort study examining patients who underwent CRS HIPEC for CRPM from 2000 to 2018. Patients were grouped according to SES. Baseline characteristics, perioperative outcomes, and survival were examined between groups. A total of 226 patients were analyzed, 107 (47%) low-SES and 119 (53%) high-SES patients. High-SES patients were younger (52 vs. 58 years, p = 0.01) and more likely to be White (95.0% vs. 91.6%, p = 0.06) and privately insured (83% vs. 57%, p
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- 2021
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29. Association Between Medicaid Expansion and Diagnosis and Management of Colon Cancer
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Caroline J. Rieser, Ibrahim Nassour, Samer Tohme, Heather M Phelos, Amer H. Zureikat, Lindsay M. Sabik, Richard S. Hoehn, and Alessandro Paniccia
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medicine.medical_specialty ,Colorectal cancer ,business.industry ,Surgical care ,MEDLINE ,Cancer ,medicine.disease ,03 medical and health sciences ,0302 clinical medicine ,030220 oncology & carcinogenesis ,Family medicine ,medicine ,Health insurance ,030211 gastroenterology & hepatology ,Surgery ,business ,Medicaid ,Cancer staging ,Insurance coverage - Abstract
Background The Affordable Care Act facilitated improved insurance coverage for states that expanded Medicaid coverage, but the impact on cancer outcomes is unclear. This study compared changes in the diagnosis and management of colon cancer in states that did and did not participate in Medicaid expansion. Study Design Using a quasi-experimental difference-in-differences (DID) approach, we analyzed Medicaid and uninsured patients in the National Cancer Data Base during 2 time periods: pre (2011-2012) and post expansion (2015-2016). Patients in non-expansion states were compared with those in January 2014 expansion states with regard to changes in patient and facility characteristics, cancer staging, treatment decisions, and surgical outcomes. Results Along with increased Medicaid coverage (DID = 20.27; p Conclusions Medicaid expansion correlated with earlier diagnosis, enhanced access, and improved surgical care for colon cancer patients. These findings highlight the importance of improving health insurance coverage and can help guide future policy efforts.
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- 2021
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30. CA19-9 on Postoperative Surveillance in Pancreatic Ductal Adenocarcinoma: Predicting Recurrence and Changing Prognosis over Time
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Ahmad Hamad, Melissa E. Hogg, Caroline J. Rieser, Amr I. Al Abbas, Amer H. Zureikat, Nathan Bahary, Mazen S. Zenati, and Herbert J. Zeh
- Subjects
Male ,medicine.medical_specialty ,Multivariate analysis ,endocrine system diseases ,CA-19-9 Antigen ,Adenocarcinoma ,Gastroenterology ,03 medical and health sciences ,0302 clinical medicine ,Surgical oncology ,Internal medicine ,Carcinoma ,medicine ,Biomarkers, Tumor ,Humans ,Postoperative Period ,Prospective Studies ,Prospective cohort study ,Survival rate ,Aged ,Retrospective Studies ,business.industry ,Retrospective cohort study ,medicine.disease ,Prognosis ,digestive system diseases ,Pancreatic Neoplasms ,Survival Rate ,Oncology ,030220 oncology & carcinogenesis ,Population Surveillance ,030211 gastroenterology & hepatology ,Surgery ,CA19-9 ,Female ,Neoplasm Recurrence, Local ,business ,Carcinoma, Pancreatic Ductal ,Follow-Up Studies - Abstract
Serum carbohydrate antigen 19-9 (CA19-9) correlates with response to therapy and overall survival (OS) for patients with pancreatic ductal adenocarcinoma (PDAC). This study aimed to define the chronologic relationship between CA19-9 elevation and radiographic recurrence to develop a model that can predict the risk of recurrence (RFS) and prognosis during interval surveillance for patients with resected PDAC. A retrospective review examined patients undergoing surgery for pancreatic adenocarcinoma from January 2010 to May 2016. Their CA19-9 levels were classified at diagnosis, after surgery, and at 6-month surveillance intervals. Recurrence was defined by radiographic evidence. The CA19-9 levels were correlated with RFS and OS at every time point using multivariate analysis. The study examined 525 patients. Five patterns of CA19-9 were identified: normal (“nonsecretors,” 18.5%), always elevated, and high at diagnosis but normal after resection involving three patterns with varied behavior during surveillance. These five patterns had implications for RFS and OS. When elevation of CA19-9, as assessed at 6-month intervals, was analyzed relative to detection of radiographic disease, CA19-9 had poor positive predictive value (average, 35%) but high negative predictive value (average, 92%) for radiographic recurrence. Conditional RFS showed that CA19-9 elevation did not equal radiographic recurrence but predicted subsequent RFS. Additionally, conditional OS showed that CA19-9 elevation alone was predictive at each time point. This study showed that CA19-9 patterns beyond the post-resection period predict RFS and OS. High CA19-9 frequently is discordant with recurrence on imaging and may precede it by more than 6 months. At each surveillance interval, CA19-9 is predictive of prognosis, which may help in counseling patients and could be used to direct protocols of salvage chemotherapy.
- Published
- 2017
31. Correction to: Serum CA19-9 Response to Neoadjuvant Therapy Predicts Tumor Size Reduction and Survival in Pancreatic Adenocarcinoma
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Amer H. Zureikat, Amr I. Al Abbas, Melissa E. Hogg, Herbert J. Zeh, Jae Pil Jung, Ahmad Hamad, Caroline J. Rieser, and Mazen S. Zenati
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Oncology ,medicine.medical_specialty ,Tumor size ,business.industry ,medicine.medical_treatment ,medicine.disease ,Text mining ,Surgical oncology ,Internal medicine ,medicine ,Adenocarcinoma ,Surgery ,CA19-9 ,business ,Reduction (orthopedic surgery) ,Neoadjuvant therapy - Abstract
In the original article, Caroline J. Rieser’s last name is spelled wrong. It is correct as reflected here.
- Published
- 2020
- Full Text
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