David Reed Flum

About this provider

David Reed Flum is listed in general surgery in Seattle, WA. Reported medical education includes University Of Miami, Lm Miller School Of Medicine (1991). Languages listed: English, Spanish.

Education & training

• UNIVERSITY OF MIAMI, LM MILLER SCHOOL OF MEDICINE · 1991 Source ↗

Source-reported information; confirm current details directly.

Reported credentials

• Surgery Source ↗
• Surgery, 1999, American Board of Surgery Source ↗

Source-reported information; confirm current details directly.

Reported affiliations

• THE ASSOCIATION OF UNIVERSITY PHYSICIANS Source ↗

Source-reported information; confirm current details directly.

Selected publications

• The Use of Prophylactic Insulin in Surgical Patients Without Diabetes: A Pilot Randomized, Controlled Trial. · 2026 Source ↗
• Dietary modifications to prevent recurrent diverticulitis. · 2026 Source ↗
• Diagnosis and Treatment of Acute Appendicitis: 2025 Edition of the World Society of Emergency Surgery Jerusalem Guidelines. · 2026 Source ↗
• Comparison of Surgery and Medicine on the Impact of Diverticulitis (COSMID) trial: a protocol for a pragmatic randomised study of diverticulitis treatment in the USA. · 2026 Source ↗
• Prescription Default Nudges for Opioid Reduction after Major Surgery (NORMS): A Randomized Controlled Trial. · 2025 Source ↗
• Appendicitis. · 2025 Source ↗
• Population-Level Reduction in Ovarian Cancer Through Performance of Opportunistic Salpingectomy at the Time of Cholecystectomy. · 2025 Source ↗
• Corrigendum to "How to talk with surgical patients about risk: The example of a novel surgical strategy" [Heliyon Volume 11, Issue 6, March 2025, Article e42969]. · 2025 Source ↗
• A Multicenter Assessment of the Accuracy of Claims Data in Appendicitis Research. · 2026 Source ↗
• Generalized Pairwise Comparisons to Support Shared Decision-Making in the CODA Trial. · 2025 Source ↗
• Antibiotic treatment versus appendicectomy for acute appendicitis in adults: an individual patient data meta-analysis. · 2025 Source ↗
• Patient and Surgeon Attitudes Toward Opportunistic Salpingectomy During Nongynecological Surgeries for the Prevention of Ovarian Cancer: A Qualitative Study. · 2025 Source ↗
• The Use and Impact of a Decision Support Tool for Appendicitis Treatment. · 2024 Source ↗
• Use and Outcomes of Dexamethasone in the Management of Malignant Small Bowel Obstruction. · 2024 Source ↗
• Similarities and Differences Between Pragmatic Trials and Hybrid Effectiveness-Implementation Trials. · 2024 Source ↗
• Author response: Factors associated with recurrent appendicitis after successful treatment with antibiotics. · 2024 Source ↗
• Operative vs Nonoperative Management of Acute Cholecystitis During the Different Trimesters of Pregnancy. · 2024 Source ↗
• Factors associated with recurrent appendicitis after successful treatment with antibiotics. · 2023 Source ↗
• Two decades of surgical randomized controlled trials: worldwide trends in volume and methodological quality. · 2023 Source ↗
• Trial Participation and Outcomes Among English-Speaking and Spanish-Speaking Patients With Appendicitis Randomized to Antibiotics: A Secondary Analysis of the CODA Randomized Clinical Trial. · 2023 Source ↗
• Patient Beliefs About Antibiotics for Appendicitis and Outcomes-Reply. · 2023 Source ↗
• Diverticulitis is a population health problem: Lessons and gaps in strategies to implement and improve contemporary care. · 2023 Source ↗
• Development and Feasibility Testing of a Decision Aid for Acute Appendicitis. · 2023 Source ↗
• Association of Patient Belief About Success of Antibiotics for Appendicitis and Outcomes: A Secondary Analysis of the CODA Randomized Clinical Trial. · 2022 Source ↗
• Comparing Antibiotics versus Surgery for Treating Appendicitis—The CODA Study · 2023 Source ↗
• Randomized Pilot Test of a Decision Support Tool for Acute Appendicitis: Decisional Conflict and Acceptability in a Healthy Population. · 2022 Source ↗
• Association Between Statewide Medicaid Opioid Policy and Postoperative Opioid Prescribing among Surgeons at a Large Safety-Net Hospital. · 2022 Source ↗
• What's in a Number? Assessing the Burden of Diverticular Disease. · 2022 Source ↗
• Paradoxical Association of Hyperglycemia and Surgical Complications Among Patients With and Without Diabetes. · 2022 Source ↗
• Patient Factors and Pathology and Ultrasonography Findings Associated With Appendectomy-Reply. · 2022 Source ↗
• Treatment for Appendicitis-Reply. · 2022 Source ↗
• The need for patient decision aids in acute care settings. · 2023 Source ↗
• Caveat emptor: The accuracy of claims data in appendicitis research. · 2022 Source ↗
• Applying Behavioral Nudges in a Dietary Comparator for Surgical Trials: Developing the MediDiet. · 2022 Source ↗
• Self-selection vs Randomized Assignment of Treatment for Appendicitis. · 2022 Source ↗
• Effects of opioid addiction risk information on Americans' agreement with postoperative opioid minimization and perceptions of quality. · 2022 Source ↗
• Analysis of Outcomes Associated With Outpatient Management of Nonoperatively Treated Patients With Appendicitis. · 2022 Source ↗
• Perception of Treatment Success and Impact on Function with Antibiotics or Appendectomy for Appendicitis: A Randomized Clinical Trial with an Observational Cohort. · 2023 Source ↗
• Use and Safety of Per-Oral Endoscopic Myotomy for Achalasia in the US. · 2022 Source ↗
• Association Between a Population Health Intervention and Hypertension Control. · 2022 Source ↗
• Unrealistic optimism about treatment risks for acute appendicitis. · 2022 Source ↗
• Management of Acute Appendicitis - Longer-Term Outcomes. Reply. · 2022 Source ↗
• Patient decision-making in symptomatic gallbladder disease. · 2022 Source ↗
• Patient Factors Associated With Appendectomy Within 30 Days of Initiating Antibiotic Treatment for Appendicitis. · 2022 Source ↗
• Comparative Accuracy of ICD-9 vs ICD-10 Codes for Acute Appendicitis. · 2022 Source ↗
• Evaluating variation in enhanced recovery for colorectal surgery: a report from the Surgical Care Outcomes Assessment Program. · 2022 Source ↗
• Verbal Descriptions of the Probability of Treatment Complications Lead to High Variability in Risk Perceptions: A Survey Study. · 2023 Source ↗
• Antibiotics versus Appendectomy for Acute Appendicitis - Longer-Term Outcomes. · 2021 Source ↗
• Elective Surgery for Diverticulitis and the Risk of Recurrence and Ostomy. · 2021 Source ↗
• Postbariatric hypoglycemia: symptom patterns and associated risk factors in the Longitudinal Assessment of Bariatric Surgery study. · 2021 Source ↗
• Patterns of care after cholecystostomy tube placement. · 2022 Source ↗
• Psychological Traits and the Persuasiveness of Lung Cancer Screening Health Messages. · 2022 Source ↗
• Establishing Clinically Significant Patient-reported Outcomes for Diverticular Disease. · 2021 Source ↗
• Diabetes Remission Status During Seven-year Follow-up of the Longitudinal Assessment of Bariatric Surgery Study. · 2021 Source ↗
• Evaluating the Regional Uptake of Minimally Invasive Colorectal Surgery: a Report from the Surgical Care Outcomes Assessment Program. · 2021 Source ↗
• A Randomized Trial Comparing Antibiotics with Appendectomy for Appendicitis. · 2020 Source ↗
• Transforming Population-Based Depression Care: a Quality Improvement Initiative Using Remote, Centralized Care Management. · 2021 Source ↗
• Effectiveness of a mailed fecal immunochemical test outreach: a Medicare Advantage pilot study. · 2020 Source ↗
• Development and Implementation of a Complex Health System Intervention Targeting Transitions of Care from Hospital to Post-acute Care. · 2021 Source ↗
• Evidence-Based Management of Diverticular Disease: What's New and What's Missing? · 2020 Source ↗
• A Pilot Study of the Feasibility and Accuracy of Inpatient Continuous Glucose Monitoring. · 2020 Source ↗
• Geographic Association Between Incidence of Acute Appendicitis and Socioeconomic Status. · 2020 Source ↗
• Association between weight loss and serum biomarkers with risk of incident cancer in the Longitudinal Assessment of Bariatric Surgery cohort. · 2020 Source ↗
• Hospital and Surgeon Variation in Patient-reported Functional Outcomes After Lumbar Spine Fusion: A Statewide Evaluation. · 2020 Source ↗
• The Impact of Proximal Roux-en-Y Gastric Bypass Surgery on Acetaminophen Absorption and Metabolism. · 2020 Source ↗
• Evaluating Knowledge, Attitudes, and Beliefs About Lung Cancer Screening Using Crowdsourcing. · 2020 Source ↗
• Integrating Formal Technology Assessment into an Integrated Healthcare Delivery System: Smart Innovation. · 2020 Source ↗
• Weight loss and co-morbidity resolution between different races and ethnicities after gastric bypass. · 2019 Source ↗
• Mortality after bariatric surgery: findings from a 7-year multicenter cohort study. · 2019 Source ↗
• Changes in Sexual Functioning in Women and Men in the 5 Years After Bariatric Surgery. · 2019 Source ↗
• The Safety of Expectant Management for Adhesive Small Bowel Obstruction: A Systematic Review. · 2019 Source ↗
• The Paradox of Hyperglycemia and Surgical Outcomes in Patients with and without Diabetes. · 2019 Source ↗
• Conception rates and contraceptive use after bariatric surgery among women with infertility: Evidence from a prospective multicenter cohort study. · 2019 Source ↗
• Questioning Prediction of Lumbar Spine Surgery Outcome-Why We Need to Pay Attention-Reply. · 2018 Source ↗
• Comparison of outcomes in women and men following carotid interventions in the Washington state's Vascular Interventional Surgical Care and Outcomes Assessment Program. · 2019 Source ↗
• Role of bleeding recognition and evaluation in Black-White disparities in endometrial cancer. · 2018 Source ↗
• Serum biomarkers of inflammation and adiposity in the LABS cohort: associations with metabolic disease and surgical outcomes. · 2019 Source ↗
• Psychosocial functioning and quality of life in patients with loose redundant skin 4 to 5 years after bariatric surgery. · 2018 Source ↗
• Development and Validation of a Prediction Model for Pain and Functional Outcomes After Lumbar Spine Surgery. · 2018 Source ↗
• Insurance status differences in weight loss and regain over 5 years following bariatric surgery. · 2018 Source ↗
• Seven-Year Weight Trajectories and Health Outcomes in the Longitudinal Assessment of Bariatric Surgery (LABS) Study. · 2018 Source ↗
• Comparison of Outcomes of antibiotic Drugs and Appendectomy (CODA) trial: a protocol for the pragmatic randomised study of appendicitis treatment. · 2017 Source ↗
• Prospective evaluation of insulin and incretin dynamics in obese adults with and without diabetes for 2 years after Roux-en-Y gastric bypass. · 2018 Source ↗
• Cost and Health Care Utilization Implications of Bariatric Surgery Versus Intensive Lifestyle and Medical Intervention for Type 2 Diabetes. · 2017 Source ↗
• Facility-Level Factors and Outcomes After Skilled Nursing Facility Admission for Trauma and Surgical Patients. · 2018 Source ↗
• Preliminary validation of the Claudication Symptom Instrument (CSI). · 2017 Source ↗
• Effects of arginine-based immunonutrition on inpatient total costs and hospitalization outcomes for patients undergoing colorectal surgery. · 2017 Source ↗
• Surgeon attitudes and practice patterns in managing small bowel obstruction: a qualitative analysis. · 2017 Source ↗
• A Nationwide Rise in the Use of Stents for Benign Esophageal Perforation. · 2017 Source ↗
• Improving transitions of care across the spectrum of healthcare delivery: A multidisciplinary approach to understanding variability in outcomes across hospitals and skilled nursing facilities. · 2017 Source ↗
• Use of prescribed opioids before and after bariatric surgery: prospective evidence from a U.S. multicenter cohort study. · 2017 Source ↗
• Transanal presentation of a distal ventriculoperitoneal shunt catheter: Management of bowel perforation without laparotomy. · 2016 Source ↗
• Financial benefit of a smoking cessation program prior to elective colorectal surgery. · 2017 Source ↗
• Alcohol and other substance use after bariatric surgery: prospective evidence from a U.S. multicenter cohort study. · 2017 Source ↗
• The short-term and long-term effects of bariatric/metabolic surgery on subcutaneous adipose tissue inflammation in humans. · 2017 Source ↗
• Time-of-day and appendicitis: Impact on management and outcomes. · 2017 Source ↗
• Understanding clinical and non-clinical decisions under uncertainty: a scenario-based survey. · 2016 Source ↗
• Use of Computed Tomography to Determine Perforation in Patients With Acute Appendicitis. · 2018 Source ↗
• Type 2 Diabetes Remission Rates After Laparoscopic Gastric Bypass and Gastric Banding: Results of the Longitudinal Assessment of Bariatric Surgery Study. · 2016 Source ↗
• Longitudinal Evaluation of Work Status and Productivity After Bariatric Surgery. · 2016 Source ↗
• Sexual functioning of men and women with severe obesity before bariatric surgery. · 2017 Source ↗
• Effectiveness of a Medical vs Revascularization Intervention for Intermittent Leg Claudication Based on Patient-Reported Outcomes. · 2016 Source ↗
• The Reliability of a Standardized Reporting System for the Diagnosis of Appendicitis. · 2017 Source ↗
• Postoperative Behavioral Variables and Weight Change 3 Years After Bariatric Surgery. · 2016 Source ↗
• Defining a Research Agenda for Patient-Reported Outcomes in Surgery: Using a Delphi Survey of Stakeholders. · 2016 Source ↗
• Assessing surgeon behavior change after anastomotic leak in colorectal surgery. · 2016 Source ↗
• Alvimopan Use, Outcomes, and Costs: In reply to Fujita. · 2016 Source ↗
• Improvements in glycemic control after gastric bypass occur despite persistent adipose tissue inflammation. · 2016 Source ↗
• Perceptions of cancer treatment decision making among American Indians/Alaska Natives and their physicians. · 2016 Source ↗
• Number of Diverticulitis Episodes Before Resection and Factors Associated With Earlier Interventions. · 2016 Source ↗
• Positron emission tomography for initial staging of esophageal cancer among medicare beneficiaries. · 2016 Source ↗
• Change in Pain and Physical Function Following Bariatric Surgery for Severe Obesity. · 2016 Source ↗
• Engaging Stakeholders in Surgical Research: The Design of a Pragmatic Clinical Trial to Study Management of Acute Appendicitis. · 2016 Source ↗
• Evaluating disparities in inpatient surgical cancer care among American Indian/Alaska Native patients. · 2016 Source ↗
• Perioperative Glycemic Control During Colorectal Surgery. · 2016 Source ↗
• Assessing Cultural Competence Among Oncology Surgeons. · 2016 Source ↗
• Gastric bypass surgery vs intensive lifestyle and medical intervention for type 2 diabetes: the CROSSROADS randomised controlled trial. · 2016 Source ↗
• Intra-Wound Antibiotics and Infection in Spine Fusion Surgery: A Report from Washington State's SCOAP-CERTAIN Collaborative. · 2016 Source ↗
• Misclassification of Acceptable Venous Thromboembolism Prophylaxis Leading to Flawed Inferences and Recommendations Regarding Prevention Efforts--Reply. · 2016 Source ↗
• Alvimopan Use, Outcomes, and Costs: A Report from the Surgical Care and Outcomes Assessment Program Comparative Effectiveness Research Translation Network Collaborative. · 2016 Source ↗
• Objectively-measured sedentary time and cardiometabolic health in adults with severe obesity. · 2016 Source ↗
• Evidence for an Antibiotics-First Strategy for Uncomplicated Appendicitis in Adults: A Systematic Review and Gap Analysis. · 2016 Source ↗
• Vascular endothelial growth factor C complements the ability of positron emission tomography to predict nodal disease in lung cancer. · 2015 Source ↗
• Gaps in Guideline-Concordant Use of Diagnostic Tests Among Lung Cancer Patients. · 2015 Source ↗
• Process improvement in surgery. · 2016 Source ↗
• A Large Animal Survival Model to Evaluate Bariatric Surgery Mechanisms. · 2015 Source ↗
• Thromboembolic Complications and Prophylaxis Patterns in Colorectal Surgery. · 2015 Source ↗
• Selective vs Nonselective Nonsteroidal Anti-inflammatory Drugs and Anastomotic Leakage After Colorectal Surgery—Reply. · 2015 Source ↗
• Objective assessment of changes in physical activity and sedentary behavior: Pre- through 3 years post-bariatric surgery. · 2015 Source ↗
• Urinary Incontinence Before and After Bariatric Surgery. · 2015 Source ↗
• Imaging surveillance and survival for surgically resected non-small-cell lung cancer. · 2016 Source ↗
• Binge eating disorder and medical comorbidities in bariatric surgery candidates. · 2015 Source ↗
• Nonsteroidal anti-inflammatory drugs and the risk for anastomotic failure: a report from Washington State's Surgical Care and Outcomes Assessment Program (SCOAP). · 2015 Source ↗
• Use of the surgical safety checklist to improve communication and reduce complications. · 2015 Source ↗
• Preoperative factors and 3-year weight change in the Longitudinal Assessment of Bariatric Surgery (LABS) consortium. · 2015 Source ↗
• Time to appendectomy and risk of perforation in acute appendicitis. · 2014 Source ↗
• Use and accuracy of diagnostic imaging in the evaluation of pediatric appendicitis. · 2015 Source ↗
• Rethinking elective colectomy for diverticulitis: a strategic approach to population health. · 2014 Source ↗
• Technical factors associated with anastomotic leak after Roux-en-Y gastric bypass. · 2015 Source ↗
• Limited impact on health and access to care for 19- to 25-year-olds following the Patient Protection and Affordable Care Act. · 2014 Source ↗
• Implementation of a "real-world" learning health care system: Washington State's Comparative Effectiveness Research Translation Network (CERTAIN). · 2014 Source ↗
• Predictors of imaging surveillance for surgically treated early-stage lung cancer. · 2014 Source ↗
• Evaluating the mechanisms of improved glucose homeostasis after bariatric surgery in Ossabaw miniature swine. · 2014 Source ↗
• Structure, process, and outcomes in skilled nursing facilities: understanding what happens to surgical patients when they cannot go home. A systematic review. · 2015 Source ↗
• Lung resection outcomes and costs in Washington State: a case for regional quality improvement. · 2014 Source ↗
• A nationwide survey of trauma center information technology leverage capacity for mental health comorbidity screening. · 2014 Source ↗
• Ninety-day costs of video-assisted thoracic surgery versus open lobectomy for lung cancer. · 2014 Source ↗
• Hepatic pathology among patients without known liver disease undergoing bariatric surgery: observations and a perspective from the longitudinal assessment of bariatric surgery (LABS) study. · 2014 Source ↗
• Comparative effectiveness of skin antiseptic agents in reducing surgical site infections: a report from the Washington State Surgical Care and Outcomes Assessment Program. · 2014 Source ↗
• Traumatic near amputation secondary to hippopotamus attack: lessons for surgeons. · 2014 Source ↗
• Intraoperative cholangiography during cholecystectomy. · 2013 Source ↗
• The use, safety and cost of bariatric surgery before and after Medicare's national coverage decision. · 2011 Source ↗
• The cover. Spatial concept: expectations. · 2009 Source ↗
• Reproductive health of women electing bariatric surgery. · 2010 Source ↗
• Development of a porcine Roux-en-Y gastric bypass survival model for the study of post-surgical physiology. · 2007 Source ↗
• Toward the rational and equitable use of bariatric surgery. · 2007 Source ↗
• Washington State's approach to variability in surgical processes/Outcomes: Surgical Clinical Outcomes Assessment Program (SCOAP). · 2005 Source ↗
• Misdiagnosis of appendicitis and the use of diagnostic imaging. · 2005 Source ↗
• Evaluating diagnostic accuracy in appendicitis using administrative data. · 2005 Source ↗
• Early mortality among Medicare beneficiaries undergoing bariatric surgical procedures. · 2005 Source ↗
• Impact of gastric bypass operation on survival: a population-based analysis. · 2004 Source ↗
• Bile duct injury during cholecystectomy and survival in medicare beneficiaries. · 2003 Source ↗
• Have outcomes of incisional hernia repair improved with time? A population-based analysis. · 2003 Source ↗
• Intraoperative cholangiography and risk of common bile duct injury during cholecystectomy. · 2003 Source ↗
• A cost-effectiveness analysis of intraoperative cholangiography in the prevention of bile duct injury during laparoscopic cholecystectomy. · 2003 Source ↗
• The nationwide frequency of major adverse outcomes in antireflux surgery and the role of surgeon experience, 1992-1997. · 2002 Source ↗
• The clinical and economic correlates of misdiagnosed appendicitis: nationwide analysis. · 2002 Source ↗

Source-reported information; confirm current details directly.

Insurance reported

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