Scholars@Duke
Jacob A Greenberg

Jacob A Greenberg

Associate Professor of Surgery
Surgery, Minimally Invasive Surgery
jacob.greenberg@duke.edu
407 Crutchfield Street, Durham, NC 27704
407 Crutchfield Street, Durham, NC 27704

Scholarly Works - Journal articles

Short-term safety and efficacy of revision or conversion metabolic and bariatric surgery in older adults: an analysis of the MBSAQIP database.

Journal article Surg Endosc · July 10, 2026 BACKGROUND: A subset of older adults who undergo metabolic and bariatric surgery (MBS) eventually requires revision or conversion of their index MBS procedure. However, the relative safety of revision/conversion MBS in the older population as compared to y ... Full text Link to item Cite

Inguinal and Ventral Hernia Repair with the Hugo Robotic-Assisted Surgery System: A Prospective, Single-arm, Clinical Trial.

Journal article Ann Surg · May 11, 2026 OBJECTIVE: To determine the safety and efficacy of the Hugo robotic-assisted surgery (RAS) platform in the repair of inguinal and ventral hernias. SUMMARY BACKGROUND DATA: Robotic-assisted surgery has increasingly been utilized in inguinal and ventral hern ... Full text Link to item Cite

Shared EPA Expectations: Mapping Micro-Assessments to The Traditional Rotational Training Framework.

Journal article J Surg Educ · March 2026 INTRODUCTION: In the transition to competency-based surgical training, Entrustable Professional Activities (EPAs) must demonstrate their efficacy as a formative assessment tool while working in a time-based, rotational framework. We seek to identify how th ... Full text Link to item Cite

Remediation strategies for the struggling resident: technical skills and beyond.

Journal article Surg Endosc · March 2026 BACKGROUND: The transition from medical student to surgical resident involves a significant shift in responsibility, learning style, and hands-on training complexity. Navigating all these professional hurdles can be a challenge, and residents may struggle ... Full text Link to item Cite

A Recommendation for FLS Certification for General Surgery Residents By the End of the PGY-2 Year.

Journal article Ann Surg · January 21, 2026 The "Fundamentals of Laparoscopic Surgery" (FLS) certification has been shown to establish achievement of basic levels of knowledge and skills competencies in laparoscopic surgery by surgical residents. Current evidence shows that this frequently occurs to ... Full text Link to item Cite

Applying a Shame Lens to Understand Surgical Resident Well-Being: A Call for a Mixed Methods Research Agenda to Build Shame Competence.

Journal article J Surg Educ · January 2026 There is a well-known but incompletely described well-being crisis in surgery. Rates of poor mental health, substance misuse, and self-harm ideation are concerningly high. There is a growing interest in, and a related body of literature seeking to understa ... Full text Link to item Cite

Evaluation of the Educational Impact of a Laparoscopic Bowel Anastomosis Simulator

Journal article Journal of the Society of Laparoscopic and Robotic Surgeons · January 1, 2026 Background and Objectives: The bowel anastomosis training simulator (BATS) was developed to provide realistic training in hand-sewn bowel anastomosis, previously validated for open techniques. As minimally invasive surgery (MIS) advances, effective laparos ... Full text Cite

Hernia and Abdominal Wall Surgery Fellowships: results of a 1-year pilot program : Pilot of hernia surgery fellowship.

Journal article Surg Endosc · December 2025 BACKGROUND: Hernias are among the most common maladies treated by surgeons worldwide. Over the past decades, the spectrum of hernia disease has become increasingly more complex. There is thus a role for the creation of Hernia and Abdominal Wall Surgery Fel ... Full text Link to item Cite

Associations of Computerized Tomography-Based Body Composition and Food Insecurity in Bariatric Surgery Patients.

Journal article Obes Surg · September 2025 INTRODUCTION: Food insecurity (FI) is associated with increased adiposity and obesity-related medical conditions, and body composition can affect metabolic risk. Bariatric surgery effectively treats obesity and metabolic diseases. The association of FI wit ... Full text Link to item Cite

Missed Abdominal Wall Hernias.

Journal article Ann Surg Open · September 2025 Full text Open Access Link to item Cite

Postoperative outcomes following revision or conversion surgery after primary sleeve gastrectomy: an analysis of the MBSAQIP database.

Journal article Surg Obes Relat Dis · August 2025 BACKGROUND: A significant proportion of patients that undergo primary sleeve gastrectomy (SG) require revision or conversion metabolic and bariatric surgery (MBS). Despite various procedures performed in practice, comparative analyses of short-term outcome ... Full text Link to item Cite

The new VBC: creating a video-based culture in general surgery residency.

Journal article Surg Endosc · July 2025 Surgery has become increasingly subspecialized and complex and therefore teaching strategies for surgical trainees must also adapt. Operative video review and coaching represents a potential innovation to improve the efficacy of resident skill acquisition. ... Full text Link to item Cite

Building Surgical Character: A Dynamic Simulation Curriculum for Nontechnical Skills.

Journal article J Surg Educ · April 2025 OBJECTIVE: Previous simulation curricula of nontechnical skills have focused on communication skills or empathy in isolation from technical skills, using feedback from one rater. We aimed to develop and pilot an expanded simulation curriculum focused on si ... Full text Link to item Cite

Impact of metal vs non-absorbable, polymer clips during laparoscopic cholecystectomy.

Journal article Surg Endosc · April 2025 BACKGROUND: Titanium metal clips have classically been used to occlude the cystic artery and duct during laparoscopic cholecystectomy (LC). Non-absorbable, polymer clips are an alternative with a locking feature. There is limited research evaluating the ad ... Full text Link to item Cite

Prior Teaching Experience and Barriers to Effective Resident Teaching: A Cross-Sectional Study.

Journal article J Surg Res · September 2024 INTRODUCTION: Resident physicians play an important role in teaching the next generation of health-care providers, yet limited research has explored factors influencing effective teaching, such as preresidency experiences or barriers within residency. This ... Full text Link to item Cite

Roles, Responsibilities, and Expectations of Medical Students on Surgical Subinternships: A Modified Delphi Consensus Study.

Journal article Acad Med · August 1, 2024 PURPOSE: Surgical subinternships are important rotations for students preparing for a career in general surgery; however, these rotations often vary by institution and service. This modified Delphi study was conducted to reach a consensus set of roles, res ... Full text Link to item Cite

Routine Imaging Is Not Needed for Groin Hernia Diagnosis.

Journal article Am Fam Physician · August 2024 Link to item Cite

Faculty and Resident Perspectives on the Implementation of Entrustable Professional Activities in General Surgery Residency.

Journal article J Surg Educ · June 2024 OBJECTIVE: This study aimed to identify what best practices facilitate implementation of Entrustable Professional Activities (EPAs) into surgical training programs. DESIGN: This is a mixed methods study utilizing both survey data as well as semi-structured ... Full text Link to item Cite

Enhancing the Value of Surgical Entrustable Professional Activities through Integrative Learning Analytics.

Journal article J Surg Educ · October 2023 OBJECTIVE: To demonstrate the value of integrating surgical resident Entrustable Professional Activity (EPA) data into a learning analytics platform that provides meaningful feedback for formative and summative decision-making. DESIGN: Description of the S ... Full text Link to item Cite

Teaching advanced surgical anatomy with visual representations: comparing perceptual fluency and sense making

Journal article Instructional Science · August 1, 2023 Combinations of perceptual fluency and sense-making competencies contribute synergistically to learning gains in undergraduate science, technology, engineering, and math (STEM) education. However, instructional principles depend on the target of instructio ... Full text Cite

The Surgical Subinternship: A Unique Opportunity for Early Leadership Development.

Journal article J Surg Educ · June 2023 Subinternships are formative rotations in the surgery-bound medical student's journey to surgical training. This experience allows for further exploration of career goals, plays an important evaluative role in the residency selection process, and offers on ... Full text Link to item Cite

The case for a new post-graduate hernia designation: a review of fellowship council case logs from the past twelve-years.

Journal article Surg Endosc · May 2023 BACKGROUND: The Fellowship Council (FC) is a robust accreditation body with numerous fellowships; however, no specific criteria exist for hernia fellowships. This study analyzed the case log database to evaluate trends in fellowship exposure to hernia repa ... Full text Link to item Cite

National Comparison of Program Director Perceptions vs. Resident Reports of the Learning Environment and Well-Being.

Journal article J Surg Educ · January 2023 OBJECTIVE: Our research objectives were to (1) assess the correlation between PD perceptions and their residents' reported experiences and (2) identify PD and program characteristics associated with alignment between PD perceptions and their residents' rep ... Full text Link to item Cite

Long-Term, Prospective, Multicenter Study of Poly-4-Hydroxybutyrate Mesh (Phasix Mesh) for Hernia Repair in Cohort at Risk for Complication: 60-Month Follow-Up.

Journal article J Am Coll Surg · December 1, 2022 BACKGROUND: Long-term resorbable mesh represents a promising technology for ventral and incisional hernia repair (VIHR). This study evaluates poly-4-hydroxybutyrate mesh (P4HB; Phasix Mesh) among comorbid patients with CDC class I wounds. STUDY DESIGN: Thi ... Full text Link to item Cite

Early Operation for Complications Arising From Bariatric Surgical Tourism.

Journal article Am Surg · August 2022 The patient is a 48-year-old female, who underwent LAGB in Tijuana, Mexico, via bariatric medical tourism in 2008. She had no follow up after surgery. Subsequently had a port infection, for which the port was removed, but the band was left in place. Suffer ... Full text Link to item Cite

A pragmatic, evidence-based approach to coding for abdominal wall reconstruction.

Journal article Hernia · April 2022 PURPOSE: Ambiguity exists defining abdominal wall reconstruction (AWR) and associated Current Procedural Terminology code usage in the context of ventral hernia repair (VHR), especially with recent adoption of laparoscopic and robotic-assisted AWR techniqu ... Full text Link to item Cite

Gender Differences in Entrustable Professional Activity Evaluations of General Surgery Residents.

Journal article Ann Surg · February 1, 2022 OBJECTIVE: To determine differences in entrustable professional activity (EPA) assessments between male and female general surgery residents. SUMMARY BACKGROUND DATA: Evaluations play a critical role in career advancement for physicians. However, female ph ... Full text Link to item Cite

A prospective, multicenter trial of a long-term bioabsorbable mesh with Sepra technology in cohort of challenging laparoscopic ventral or incisional hernia repairs (ATLAS trial)

Journal article Annals of Medicine and Surgery · January 1, 2022 Background: This prospective, multicenter, single-arm, open-label study evaluated P4HB-ST mesh in laparoscopic ventral or incisional hernia repair (LVIHR) in patients with Class I (clean) wounds at high risk for Surgical Site Occurrence (SSO). Methods: Pri ... Full text Cite

Antireflux surgery leads to durable improvement in laryngopharyngeal reflux symptoms.

Journal article Surg Endosc · January 2022 BACKGROUND: Laryngopharyngeal reflux (LPR) symptoms are often present in patients with Gastroesophageal reflux disease (GERD). Whereas antireflux surgery (ARS) provides predictably excellent results in patients with typical GERD, those with atypical sympto ... Full text Link to item Cite

Imposter Syndrome in Surgical Trainees: Clance Imposter Phenomenon Scale Assessment in General Surgery Residents.

Journal article J Am Coll Surg · November 2021 BACKGROUND: Imposter syndrome occurs when high-achieving individuals have a pervasive sense of self-doubt combined with fear of being exposed as a fraud, despite objective measures of success. This threatens mental health and well-being. The prevalence and ... Full text Link to item Cite

Experiences of Gender Discrimination and Sexual Harassment Among Residents in General Surgery Programs Across the US.

Journal article JAMA Surg · October 1, 2021 IMPORTANCE: Mistreatment is a common experience among surgical residents and is associated with burnout. Women have been found to experience mistreatment at higher rates than men. Further characterization of surgical residents' experiences with gender disc ... Full text Link to item Cite

Perioperative Cost Differences Between Laparoscopic Sleeve Gastrectomy and Laparoscopic Roux-en-Y Gastric Bypass: A Single Institutional Review.

Journal article J Laparoendosc Adv Surg Tech A · September 2021 Background: Minimizing bariatric surgery care costs is important since more than 250,000 patients undergo bariatric surgery annually in the United States. The study objective was to compare perioperative costs for the two most common bariatric procedures: ... Full text Link to item Cite

Phone follow-up after inguinal hernia repair.

Journal article Surg Endosc · September 2021 BACKGROUND: Typically, in-person follow-up in clinic is utilized after outpatient inguinal hernia repair. Studies have shown that phone follow-up may be successfully used for the detection of postoperative hernia recurrences. However, no studies have evalu ... Full text Link to item Cite

Instructional methods of attendings as exhibited during intraoperative takeovers: A pilot study.

Journal article Surgery · August 2021 BACKGROUND: This pilot study examined intraoperative instructional techniques during "takeovers," defined as the act of an attending taking control of a case from a resident. This work describes what happens during takeovers and identifies possible reasons ... Full text Link to item Cite

Both gastric electrical stimulation and pyloric surgery offer long-term symptom improvement in patients with gastroparesis.

Journal article Surg Endosc · August 2021 BACKGROUND: Gastroparesis (GP) is hallmarked by nausea, vomiting, and early satiety. While dietary and medical therapy are the mainstay of treatment, surgery has been used to palliate symptoms. Two established first-line surgical options are gastric electr ... Full text Link to item Cite

Unnecessary use of radiology studies in the diagnosis of inguinal hernias: a retrospective cohort study.

Journal article Surg Endosc · August 2021 BACKGROUND: The diagnosis of inguinal hernias is predominantly based on physical exam, although imaging may be used in select cases. The objective of this study was to determine the frequency of unnecessary imaging used in the diagnosis of inguinal hernias ... Full text Link to item Cite

Changing Medical Education When Change Is Hard: Implementing an Interdepartmental Entrustable Professional Activity

Journal article Aem Education and Training · July 1, 2021 Background: Entrustable professional activities (EPAs) are a new tool for assessing learners that represents a significant movement in graduate medical education (GME) toward competency-based assessment and serves as a bridge between milestones and clinica ... Full text Cite

Current practice patterns for initial umbilical hernia repair in the United States.

Journal article Hernia · June 2021 PURPOSE: The approach to repairing an initial umbilical hernia (IUH) varies substantially, and this likely depends on hernia size, patient age, sex, BMI, comorbidities including diabetes mellitus, and surgeon preference. Of these, only hernia size has been ... Full text Link to item Cite

At-home hands-on surgical training during COVID19: proof of concept using a virtual telementoring platform.

Journal article Surg Endosc · May 2021 INTRODUCTION: Surgeons in practice have limited opportunities to learn new techniques and procedures. Traditionally, in-person hands-on courses have been the most common means for surgeons to gain exposure to new techniques and procedures. The COVID19 pand ... Full text Link to item Cite

Ultrasound-guided microwave ablation in the treatment of inguinal neuralgia.

Journal article Skeletal Radiol · March 2021 Chronic groin pain can be due to a variety of causes and is the most common complication of inguinal hernia repair surgery. The etiology of pain after inguinal hernia repair surgery is often multifactorial though injury to or scarring around the nerves in ... Full text Link to item Cite

Comparison of the Perspectives of Medical Students and Residents on the Surgery Learning Environment.

Journal article J Surg Res · February 2021 BACKGROUND: The learning environment plays a critical role in learners' satisfaction and outcomes. However, we often lack insight into learners' perceptions and assessments of these environments. It can be difficult to discern learners' expectations, makin ... Full text Link to item Cite

A Comparison of Expert Ratings and Marker-Less Hand Tracking along OSATS-Derived Motion Scales

Journal article IEEE Transactions on Human Machine Systems · February 1, 2021 Objective: This study creates linear and generalized additive models (GAMs) of video-recorded two-dimensional hand motion (synonymously referred to as hand movements or hand kinematics) to predict expert-rated performance along a series of surgical motion ... Full text Cite

Natural language processing and entrustable professional activity text feedback in surgery: A machine learning model of resident autonomy.

Journal article Am J Surg · February 2021 BACKGROUND: Entrustable Professional Activities (EPAs) contain narrative 'entrustment roadmaps' designed to describe specific behaviors associated with different entrustment levels. However, these roadmaps were created using expert committee consensus, wit ... Full text Link to item Cite

pH Impedance Parameters Associated with Improvement in GERD Health-Related Quality of Life Following Anti-reflux Surgery.

Journal article J Gastrointest Surg · January 2021 INTRODUCTION: pH impedance testing is the most sensitive diagnostic test for detecting gastroesophageal reflux disease (GERD). The literature remains inconclusive on which preoperative pH impedance testing parameters are associated with an improvement in h ... Full text Link to item Cite

Surgeon Variability Impacts Costs in Laparoscopic Cholecystectomy: the Volume-Cost Relationship.

Journal article J Gastrointest Surg · January 2021 BACKGROUND: Physician variation in adherence to best practices contributes to the high costs of health care. Understanding surgeon-specific cost variation in common surgical procedures may inform strategies to improve the value of surgical care. METHODS: L ... Full text Link to item Cite

Surgical Trainees' Sense of Responsibility for Patient Outcomes: A Multi-institutional Appraisal.

Journal article J Surg Res · November 2020 BACKGROUND: Surgeon educators express concern about trainees' sense of patient ownership. We aimed to compare resident and faculty perceptions on residents' sense of personal responsibility for patient outcomes and to correlate patient ownership with resid ... Full text Link to item Cite

Prospective comparison of longitudinal change in hepatic proton density fat fraction (PDFF) estimated by magnitude-based MRI (MRI-M) and complex-based MRI (MRI-C).

Journal article Eur Radiol · September 2020 PURPOSE: To compare longitudinal hepatic proton density fat fraction (PDFF) changes estimated by magnitude- vs. complex-based chemical-shift-encoded MRI during a weight loss surgery (WLS) program in severely obese adults with biopsy-proven nonalcoholic fat ... Full text Link to item Cite

Blueprint for Restructuring a Department of Surgery in Concert With the Health Care System During a Pandemic: The University of Wisconsin Experience.

Journal article JAMA Surg · July 1, 2020 The current health care environment is complex. Systems often cross US state boundaries to provide care to patients with a wide variety of medical needs. The coronavirus disease 2019 pandemic is challenging health care systems across the globe. Systems fac ... Full text Link to item Cite

Underrepresented Minorities in General Surgery Residency: Analysis of Interviewed Applicants, Residents, and Core Teaching Faculty.

Journal article J Am Coll Surg · July 2020 BACKGROUND: The Accreditation Council for Graduate Medical Education (ACGME) requires diversity in residency. The self-identified race/ethnicities of general surgery applicants, residents, and core teaching faculty were assessed to evaluate underrepresente ... Full text Link to item Cite

Large-field-of-view visualization with small blind spots utilizing tilted micro-camera array for laparoscopic surgery

Journal article Micromachines · May 1, 2020 Existing laparoscopic surgery systems use a single laparoscope to visualize the surgical area with a limited field of view (FoV), necessitating maneuvering the laparoscope to search a target region. In some cases, the laparoscope needs to be moved from one ... Full text Cite

Long-term dysphagia resolution following POEM versus Heller myotomy for achalasia patients.

Journal article Surg Endosc · April 2020 BACKGROUND: Heller myotomy (HM) has historically been considered the gold standard treatment for achalasia. Peroral endoscopic myotomy (POEM) is a less-invasive procedure and offers a quicker recovery. Although some studies have compared short-term outcome ... Full text Link to item Cite

Use of error management theory to quantify and characterize residents' error recovery strategies.

Journal article Am J Surg · February 2020 BACKGROUND: Traditional checklist metrics for surgical performance can miss key intraoperative decisions that impact procedural outcomes. Error-based assessments may help identify important metrics for evaluating operative performance and resident readines ... Full text Link to item Cite

Does Intentional Support of Degree Programs in General Surgery Residency Affect Research Productivity or Pursuit of Academic Surgery? A Multi-Institutional Study.

Journal article J Surg Educ · 2020 OBJECTIVE: To determine whether pursuit of an advanced degree during dedicated research time (DRT) in a general surgery residency training program impacts a resident's research productivity. DESIGN: A retrospective, multi-institutional cohort study. SETTIN ... Full text Link to item Cite

Entrustable Professional Activities in General Surgery: Trends in Resident Self-Assessment.

Journal article J Surg Educ · 2020 OBJECTIVE: Effective self-assessment is a cornerstone of lifelong professional development; however, evidence suggests physicians have a limited ability to self-assess. Novel strategies to improve the accuracy of learner self-assessment are needed. Our ins ... Full text Link to item Cite

Implementation of Entrustable Professional Activities into a General Surgery Residency.

Journal article J Surg Educ · 2020 OBJECTIVE: Concerns over resident ability to practice effectively after graduation have led to the competency-based medical education movement. Entrustable professional activities (EPAs) may facilitate competency-based medical education in surgery, but imp ... Full text Link to item Cite

Healthcare spending and utilization following antireflux surgery: examining costs and reasons for readmission.

Journal article Surg Endosc · January 2020 BACKGROUND: While clinical outcomes have been reported for anti-reflux surgery (ARS), there are limited data on post-operative encounters, including readmission, and their associated costs. This study evaluates healthcare utilization during the 90-day post ... Full text Link to item Cite

30-Day Outcomes After Intraoperative Leak Testing for Bariatric Surgery Patients.

Journal article J Surg Res · October 2019 BACKGROUND: Intraoperative testing of anastomoses and staples lines is commonly performed to minimize the risk of postoperative leaks in bariatric surgery, but its impact is unclear. The aim of this study was to determine the association between leak testi ... Full text Link to item Cite

The effect of increasing body mass index on wound complications in open ventral hernia repair with mesh.

Journal article Am J Surg · September 2019 BACKGROUND: There is a paucity of data delineating the relationship between body mass index (BMI) and wound complications. We investigated the association between BMI and wound morbidity following open ventral hernia repair with mesh (OVHR). DESIGN: Patien ... Full text Link to item Cite

Monitoring Fatty Liver Disease with MRI Following Bariatric Surgery: A Prospective, Dual-Center Study.

Journal article Radiology · March 2019 Purpose To longitudinally monitor liver fat before and after bariatric surgery by using quantitative chemical shift-encoded (CSE) MRI and to compare with changes in body mass index (BMI), weight, and waist circumference (WC). Materials and Methods For this ... Full text Link to item Cite

An Interdisciplinary Approach to Surgical Skills Training Decreases Programmatic Costs.

Journal article J Surg Res · March 2019 BACKGROUND: Surgical resident duty hour limitations have necessitated operative skill training outside of the operating room. Although wet-lab skills training is ideal, materials and human resource requirements make wet labs-utilizing biologic samples cost ... Full text Link to item Cite

Persistent Dysphagia Rate After Antireflux Surgery is Similar for Nissen Fundoplication and Partial Fundoplication.

Journal article J Surg Res · March 2019 BACKGROUND: Laparoscopic fundoplication is the gold standard operation for treatment of gastroesophageal reflux disease (GERD). It has been suggested that persistent postoperative dysphagia is increased following Nissen fundoplication compared to partial f ... Full text Link to item Cite

Modeling Surgical Technical Skill Using Expert Assessment for Automated Computer Rating.

Journal article Ann Surg · March 2019 OBJECTIVE: Computer vision was used to predict expert performance ratings from surgeon hand motions for tying and suturing tasks. SUMMARY BACKGROUND DATA: Existing methods, including the objective structured assessment of technical skills (OSATS), have pro ... Full text Link to item Cite

Ultrasound-Guided Microwave Ablation for the Management of Inguinal Neuralgia: A Preliminary Study with 1-Year Follow-up.

Journal article J Vasc Interv Radiol · February 2019 PURPOSE: To evaluate the feasibility and efficacy of ultrasound-guided microwave ablation for the treatment of inguinal neuralgia. MATERIALS AND METHODS: A retrospective review of 12 consecutive ultrasound-guided microwave ablation procedures was performed ... Full text Link to item Cite

Underrepresented Minorities are Underrepresented Among General Surgery Applicants Selected to Interview.

Journal article J Surg Educ · 2019 OBJECTIVE: Diversity is an ill-defined entity in general surgery training. The Accreditation Council for Graduate Medical Education recently proposed new common program requirements including verbiage requiring diversity in residency. "Recruiting" for dive ... Full text Link to item Cite

Examining the Impact of Using the SIMPL Application on Feedback in Surgical Education.

Journal article J Surg Educ · November 2018 OBJECTIVE: The System for Improving and Measuring Procedural Learning (SIMPL) smartphone application allows physicians to provide dictated feedback to surgical residents. The impact of this novel feedback medium on the quality of feedback is unknown. Our o ... Full text Link to item Cite

Enhanced Recovery After Surgery Protocols: Rationale and Components.

Journal article Surg Clin North Am · June 2018 Enhanced recovery after surgery (ERAS) protocols are spreading throughout various fields in surgery. ERAS protocols involve the implementation of evidence-based elements of care that are applied throughout the entire perioperative period to facilitate opti ... Full text Link to item Cite

How bariatric surgery affects liver volume and fat density in NAFLD patients.

Journal article Surg Endosc · April 2018 INTRODUCTION: Nonalcoholic fatty liver disease (NAFLD) is an epidemic in the obese population. Bariatric surgery is known to reverse multiple metabolic complications of obesity such as diabetes, dyslipidemia, and NAFLD, but the timing of liver changes has ... Full text Link to item Cite

Prospective evaluation of poly-4-hydroxybutyrate mesh in CDC class I/high-risk ventral and incisional hernia repair: 18-month follow-up.

Journal article Surg Endosc · April 2018 BACKGROUND: Long-term resorbable mesh represents a promising technology for complex ventral and incisional hernia repair (VIHR). Preclinical studies indicate that poly-4-hydroxybutyrate (P4HB) resorbable mesh supports strength restoration of the abdominal ... Full text Link to item Cite

Large-field-of-view visualization utilizing multiple miniaturized cameras for laparoscopic surgery

Journal article Micromachines · January 1, 2018 The quality and the extent of intra-abdominal visualization are critical to a laparoscopic procedure. Currently, a single laparoscope is inserted into one of the laparoscopic ports to provide intra-abdominal visualization. The extent of this field of view ... Full text Cite

Concurrent bariatric surgery and paraesophageal hernia repair: comparison of sleeve gastrectomy and Roux-en-Y gastric bypass.

Journal article Surg Obes Relat Dis · January 2018 BACKGROUND: Paraesophageal hernia (PEH) is a common condition that bariatric surgeons encounter. Expert opinion is split on whether bariatric surgery and PEH repair should be completed concurrently or sequentially. We hypothesized that concurrent bariatric ... Full text Link to item Cite

Long-term outcomes of laparoscopic adjustable gastric banding.

Journal article Am J Surg · January 2018 BACKGROUND: Laparoscopic adjustable gastric banding (LAGB) is an option for the treatment of severe obesity. Few US studies have reported long-term outcomes. We aimed to present long-term outcomes with LAGB. METHODS: Retrospective study of patients who und ... Full text Link to item Cite

A structured, extended training program to facilitate adoption of new techniques for practicing surgeons.

Journal article Surg Endosc · January 2018 INTRODUCTION: Laparoscopic inguinal hernia repair has been shown to have significant benefits when compared to open inguinal hernia repair, yet remains underutilized in the United States. The traditional model of short, hands-on, cognitive courses to enhan ... Full text Link to item Cite

Primary fascial closure during laparoscopic ventral hernia repair does not reduce 30-day wound complications.

Journal article Surg Endosc · November 2017 BACKGROUND: Laparoscopic ventral hernia repair (LVHR) is associated with decreased wound morbidity compared to open repair. It remains unclear whether primary fascial closure (PFC) offers any benefit in reducing postoperative seroma compared to bridged rep ... Full text Link to item Cite

Patient-reported quality of life after bariatric surgery: a single institution analysis.

Journal article J Surg Res · October 2017 BACKGROUND: Bariatric surgery is an effective weight loss and comorbidity treatment among severely obese patients. However, there are limited data describing its impact on patient-reported quality of life (QoL). We examined patient-reported QoL after baria ... Full text Link to item Cite

Long-Term Quality of Life Outcomes Following Nissen Versus Toupet Fundoplication in Patients with Gastroesophageal Reflux Disease.

Journal article J Laparoendosc Adv Surg Tech A · September 2017 INTRODUCTION: Laparoscopic fundoplication is the gold standard treatment for gastroesophageal reflux disease (GERD) refractory to medical management. Although many studies have compared Nissen fundoplication (NF) to Toupet fundoplication (TF), it is unclea ... Full text Link to item Cite

Psychosocial Factors Are Associated with Quality of Life After Laparoscopic Antireflux Surgery.

Journal article J Laparoendosc Adv Surg Tech A · August 2017 BACKGROUND: Laparoscopic antireflux surgery (LARS) is the gold standard treatment for refractory gastroesophageal reflux disease (GERD). Traditional surgical outcomes following LARS are well described, but limited data exist regarding patient-reported outc ... Full text Link to item Cite

Resident training in a teaching hospital: How do attendings teach in the real operative environment?

Journal article Am J Surg · July 2017 BACKGROUND: The study aim was to explore the nature of intraoperative education and its interaction with the environment where surgical education occurs. METHODS: Video and audio recording captured teaching interactions between colorectal surgeons and gene ... Full text Link to item Cite

The effects of optimal perioperative glucose control on morbidly obese patients undergoing bariatric surgery.

Journal article Surg Endosc · March 2017 BACKGROUND: Bariatric surgery is the most effective treatment for morbidly obese type II diabetics. However, guidelines for perioperative glucose control are not well established. We examined management of perioperative glucose levels in diabetic patients ... Full text Link to item Cite

Ventral Hernia Management: Expert Consensus Guided by Systematic Review.

Journal article Ann Surg · January 2017 OBJECTIVE: To achieve consensus on the best practices in the management of ventral hernias (VH). BACKGROUND: Management patterns for VH are heterogeneous, often with little supporting evidence or correlation with existing evidence. METHODS: A systematic re ... Full text Link to item Cite

Integrating Postoperative Feedback Into Workflow: Perceived Practices and Barriers.

Journal article J Surg Educ · 2017 OBJECTIVE: Previous studies have found that both resident and staff surgeons highly value postoperative feedback; and that such feedback has high educational value. However, little is known about how to consistently deliver this feedback. Our aim was to un ... Full text Link to item Cite

Educating the surgeon-scientist: A qualitative study evaluating challenges and barriers toward becoming an academically successful surgeon.

Journal article Surgery · December 2016 BACKGROUND: The advancement of surgical science relies on educating new generations of surgeon-scientists. Career development awards (K Awards) from the National Institutes of Health, often considered a marker of early academic success, are one way physici ... Full text Link to item Cite

Analysis of model development strategies: predicting ventral hernia recurrence.

Journal article J Surg Res · November 2016 BACKGROUND: There have been many attempts to identify variables associated with ventral hernia recurrence; however, it is unclear which statistical modeling approach results in models with greatest internal and external validity. We aim to assess the predi ... Full text Link to item Cite

Evaluating the effectiveness of a mock oral educational program.

Journal article J Surg Res · October 2016 BACKGROUND: To obtain board certification, the American Board of Surgery requires graduates of general surgery training programs to pass both the written qualifying examination (QE) and the oral certifying examination (CE). In 2015, the pass rates for the ... Full text Link to item Cite

Laparoscopic-assisted ERCP and EUS in patients with prior Roux-en-Y gastric bypass surgery: a dual-center case series experience.

Journal article Surg Endosc · October 2016 BACKGROUND: Patients with Roux-en-Y gastric bypass (RYGB) develop pancreatobiliary issues after surgery. Endoscopic management via the conventional route with endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic ultrasound (EUS) is quite li ... Full text Link to item Cite

Laparoscopic ventral hernia repair with primary fascial closure versus bridged repair: a risk-adjusted comparative study.

Journal article Surg Endosc · August 2016 BACKGROUND: Laparoscopy, specifically the bridged mesh technique, is a popular means used for ventral hernia repair. While laparoscopy has decreased the incidence of surgical site infection (SSI), hernia recurrence rates remain unchanged. Some surgeons adv ... Full text Link to item Cite

Do risk calculators accurately predict surgical site occurrences?

Journal article J Surg Res · June 1, 2016 INTRODUCTION: Current risk assessment models for surgical site occurrence (SSO) and surgical site infection (SSI) after open ventral hernia repair (VHR) have limited external validation. Our aim was to determine (1) whether existing models stratify patient ... Full text Link to item Cite

Weight loss after bariatric surgery: a propensity score analysis.

Journal article J Surg Res · May 15, 2016 BACKGROUND: Laparoscopic vertical sleeve gastrectomy (LSG) has replaced laparoscopic Roux-en-Y gastric bypass (LRYGB) as the most commonly performed bariatric surgical procedure in the US for more than the past several years. Identifying which patients wil ... Full text Link to item Cite

Sublay versus underlay in open ventral hernia repair.

Journal article J Surg Res · May 1, 2016 BACKGROUND: The ideal location for mesh placement in open ventral hernia repair (OVHR) remains under debate. Current trends lean toward underlay or sublay repair. We hypothesize that in patients undergoing OVHR, sublay versus underlay placement of mesh res ... Full text Link to item Cite

The Effect of Route of Anvil Insertion on Stricture Rates with Circular Stapled Gastrojejunostomy During Laparoscopic Gastric Bypass.

Journal article Obes Surg · March 2016 BACKGROUND: A higher incidence of gastrojejunal (GJ) anastomotic strictures has been reported following laparoscopic gastric bypass (LRYGB) with the 21 mm compared to 25 mm circular stapler. We hypothesized that the rate of stricture formation is affected ... Full text Link to item Cite

Suture, synthetic, or biologic in contaminated ventral hernia repair.

Journal article J Surg Res · February 2016 BACKGROUND: Data are lacking to support the choice between suture, synthetic mesh, or biologic matrix in contaminated ventral hernia repair (VHR). We hypothesize that in contaminated VHR, suture repair is associated with the lowest rate of surgical site in ... Full text Link to item Cite

One-year Surgical Outcomes and Costs for Medicaid Versus Non-Medicaid Patients Undergoing Laparoscopic Roux-en-Y Gastric Bypass: A Single-Center Study.

Journal article Surg Laparosc Endosc Percutan Tech · February 2016 PURPOSE: To compare 1-year outcomes and costs between severely obese Medicaid and non-Medicaid patients who underwent laparoscopic Roux-en-Y gastric bypass surgery. METHODS: This is a single-institution retrospective review comparing 33 Medicaid patients t ... Full text Link to item Cite

Component Separation vs. Bridged Repair for Large Ventral Hernias: A Multi-Institutional Risk-Adjusted Comparison, Systematic Review, and Meta-Analysis.

Journal article Surg Infect (Larchmt) · February 2016 BACKGROUND: Repair of large ventral hernia defects is associated with high rates of surgical site occurrences (SSO), including surgical site infection (SSI), site dehiscence, seroma, hematoma, and site necrosis. Two common operative strategies exist: Compo ... Full text Link to item Cite

Feasibility and outcomes of laparoscopic sleeve gastrectomy after solid organ transplantation.

Journal article Surg Obes Relat Dis · January 2016 BACKGROUND: Obesity is common after solid organ transplantation and is associated with worse transplantation-related outcomes. Laparoscopic sleeve gastrectomy (LSG) may be the preferred bariatric operation in transplantation patients over other techniques, ... Full text Link to item Cite

An Unusual Trocar Site Hernia after Prostatectomy.

Journal article Case Rep Surg · 2016 Trocar site hernias are rare complications after laparoscopic surgery but most commonly occur at larger trocar sites placed at the umbilicus. With increased utilization of the laparoscopic approach the incidence of trocar site hernia is increasing. We repo ... Full text Link to item Cite

The use of error analysis to assess resident performance.

Journal article Surgery · November 2015 BACKGROUND: The aim of this study was to assess validity of a human factors error assessment method for evaluating resident performance during a simulated operative procedure. METHODS: Seven postgraduate year 4-5 residents had 30 minutes to complete a simu ... Full text Link to item Cite

Dietary and psych predictors of weight loss after gastric bypass.

Journal article J Surg Res · August 2015 BACKGROUND: Identifying severely obese patients who will succeed after bariatric surgery remains challenging. Although numerous studies have attempted to identify preoperative patient characteristics associated with weight loss, the roles of many dietary a ... Full text Link to item Cite

Laparoscopic versus open Ladd's procedure for intestinal malrotation in adults.

Journal article Surg Endosc · June 2015 BACKGROUND: Intestinal malrotation results from errors in fetal intestinal rotation and fixation. While most patients are diagnosed in childhood, some present as adults. Laparoscopic Ladd's procedure is an accepted alternative to laparotomy in children but ... Full text Link to item Cite

Incidence and risk factors of incisional hernia formation following abdominal organ transplantation.

Journal article Surg Endosc · February 2015 BACKGROUND: Hernia formation is common following abdominal operations, and transplant patients are at increased risk due to postoperative immunosuppression. The purpose of this study was to estimate the incidence of incisional hernia formation following pr ... Full text Link to item Cite

Use of decision-based simulations to assess resident readiness for operative independence.

Journal article Am J Surg · January 2015 BACKGROUND: Recent literature has called into question resident readiness for operative independence at the end of general surgery training. METHODS: We used a simulation-based exit examination to assess resident readiness. Six chief residents performed 3 ... Full text Link to item Cite

Multicamera laparoscopic imaging with tunable focusing capability

Journal article Journal of Microelectromechanical Systems · December 1, 2014 This paper presents a solution to overcome many of the fundamental challenges faced by current laparoscopic imaging systems. Our system is developed upon the key idea that widely spread multiple tunable microcameras can cover a large range of vantage point ... Full text Cite

The evolving integrated vascular surgery residency curriculum.

Journal article Ann Vasc Surg · October 2014 BACKGROUND: Since their introduction several years ago, integrated (0 + 5) vascular surgery residency programs are being increasingly developed across the country. To date, however, there is no defined "universal" curriculum for these programs and each pro ... Full text Link to item Cite

Reconfigurable micro-camera array with panoramic vision for surgical imaging

Journal article Journal of Microelectromechanical Systems · October 14, 2013 We present a prototype of a micro-panoramic vision system that includes four micro-cameras controlled simultaneously by mechanical arm-like actuators, structurally similar to umbrella ribs. Each camera rests on an arm that can be oriented at an angle simul ... Full text Cite

Educational value of the operating room experience during a core surgical clerkship.

Journal article Am J Surg · July 2010 BACKGROUND: The amount and content of medical student teaching in the operating room and its alignment with clerkship goals was unknown. METHODS: A qualitative research design using field observations, followed by qualitative and quantitative data coding a ... Full text Link to item Cite

Surgery: how safe is bariatric surgery?

Journal article Nat Rev Endocrinol · December 2009 Full text Link to item Cite

Invited commentary.

Journal article J Surg Educ · 2009 Full text Link to item Cite

Local excision of distal rectal cancer: an update of cancer and leukemia group B 8984.

Journal article Dis Colon Rectum · August 2008 PURPOSE: The efficacy of local excision in the treatment of some early-stage distal rectal cancers is still being debated, because few high-quality, long-term prospective data on outcomes are available. METHODS: Fifty-nine patients with T1 lesions were tre ... Full text Link to item Cite

The ACGME competencies in the operating room.

Journal article Surgery · August 2007 BACKGROUND: In 1999, the ACGME introduced the 6 competencies that have become the basis for resident education. Since the operating room (OR) has traditionally been the major focus for resident teaching in surgery, we performed an observational study to de ... Full text Link to item Cite

Local excision of rectal cancer oncologic results

Journal article Seminars in Colon and Rectal Surgery · March 1, 2005 While radical resection remains the standard treatment for distal rectal cancer, recent improvements in preoperative screening modalities and lower rates of morbidity and mortality have led to renewed interest in local excision. Unfortunately, there are no ... Full text Cite

Giant bullous lung disease: evaluation, selection, techniques, and outcomes.

Journal article Chest Surg Clin N Am · November 2003 Patient selection remains one of the most important aspects of successful surgery for bullous disease. Operation is indicated for patients who have incapacitating dyspnea with large bullae that fill more than 30% of the hemithorax and result in the compres ... Full text Link to item Cite