Publications by authors named "Nathaniel Soper"

Introduction: The Fundamentals of Laparoscopic Surgery (FLS) program tests basic knowledge and skills required to perform laparoscopic surgery. Educational experiences in laparoscopic training and development of associated competencies have evolved since FLS inception, making it important to review the definition of fundamental laparoscopic skills. The Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) assigned an FLS Technical Skills Working Group to characterize technical skills used in basic laparoscopic surgery in current practice contexts and their possible application to future FLS tests.

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Objective: To assess the accuracy of provider estimates of ventilator-associated pneumonia (VAP) diagnostic probability in various clinical scenarios.

Design: We conducted a clinical vignette-based survey of intensive care unit (ICU) physicians to evaluate provider estimates of VAP diagnostic probability before and after isolated cardinal VAP clinical changes and VAP diagnostic test results. Responses were used to calculate imputed diagnostic likelihood ratios (LRs), which were compared to evidence-based LRs.

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Introduction: Few studies have focused on intraoperative positioning as a risk factor for venous thromboembolism (VTE). Positioning that places the legs in a dependent position may be a risk factor. We theorized that the reverse-Trendelenburg position specifically would increase the risk of postoperative VTE.

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Article Synopsis
  • - Of 100 patients discharged from short-stay units with antibiotics, the majority had skin and soft-tissue infections (47), while others had pneumonia (22) and urinary tract infections (21).
  • - A significant 78% of antibiotic prescriptions after discharge were considered overuse.
  • - The most common issues leading to overuse were excessive duration of treatment (54 patients) and selection that did not align with guidelines (44 patients).
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Background And Aims: The functional luminal imaging probe (FLIP) is a novel catheter-based device that measures esophagogastric junction (EGJ) distensibility index (DI) in real time. Previous studies have demonstrated DI to be a predictor of post-treatment clinical outcomes in patients with achalasia. We sought to evaluate EGJ DI in patients with achalasia before, during, and after peroral endoscopic myotomy (POEM) and laparoscopic Heller myotomy (LHM) and to assess the correlation of DI with postoperative outcomes.

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Background: Little is known regarding the variation in training level and potential clinical impact of the first assistant in bariatric surgery. We describe the postoperative 30-day complications and readmissions following elective bariatric procedures by training level of the first assistant.

Methods: The ACS-MBSAQIP database was queried to identify patients who underwent elective sleeve gastrectomy, Roux-En-Y gastric bypass, duodenal switch, band placement, and revision from 2015 to 2016.

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Background And Objectives: Recent studies demonstrating decreased survival following minimally invasive surgery (MIS) for cervical cancer have generated concern regarding oncologic efficacy of MIS. Our objective was to evaluate the association between surgical approach and 5-year survival following resection of abdominopelvic malignancies.

Methods: Patients with stage I or II adenocarcinoma of the prostate, colon, rectum, and stage IA2 or IB1 cervical cancer from 2010-2015 were identified from the National Cancer Data Base.

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Background: The link between smoking and poor postoperative outcomes is well established. Despite this, current smokers are still offered bariatric surgery. We describe the risk of postoperative 30-day complications and readmission following laparoscopic sleeve gastrectomy and laparoscopic Roux-En-Y gastric bypass in smokers.

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Infectious endocarditis is a highly morbid infection that requires coordination of care across medical and surgical specialties, often through the use of a multidisciplinary team model. Multiple studies have demonstrated that such conferences can improve clinical outcomes. However, little is known about physicians' impressions of these groups.

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The Society for Surgery of the Alimentary Tract is a robust clinical society with over 2500 members. As a society that is focused on the entire alimentary tract, we overlap with other more organ-centric societies. This has led to a constant struggle of knowing how the Society for Surgery of the Alimentary Tract can best serve the surgical community.

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This study examines the associations of program characteristics with pass rates on the qualifying examination and certifying examination of the American Board of Surgery.

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Introduction: Traditionally, laparoscopic Nissen fundoplication (LNF) has been considered an inpatient procedure. Advances in surgical and anesthetic techniques have led to a shift towards outpatient LNF procedures. However, differences in surgical outcomes between outpatient and inpatient LNF are poorly understood.

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Background: The functional luminal imaging probe (FLIP) can evaluate esophagogastric junction (EGJ) distensibility and esophageal peristalsis in real time. FLIP measurements performed during diagnostic endoscopy can accurately discriminate between healthy controls and patients with achalasia based on EGJ-distensibility and distinct motility patterns termed repetitive antegrade contractions (RACs) and repetitive retrograde contractions (RRCs). We sought to evaluate real-time motility changes in patients undergoing surgical myotomy for achalasia.

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Background: The relationship between preoperative hyperglycemia and complications after surgery is not well defined. We compared the relationship of preoperative versus postoperative hyperglycemia on clinical outcomes and assessed if preoperative hyperglycemia was a predictor for postoperative hyperglycemia in patients undergoing elective colorectal surgery.

Methods: We performed a retrospective review of an institutional database for patients who underwent elective colorectal resection between July 2015 and June 2017.

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Background: Despite an increasing number of women in the field of surgery, bias regarding cognitive or technical ability may continue to affect the experience of female trainees differently than their male counterparts. This study examines the differences in the degree of operative autonomy given to female compared with male general surgery trainees.

Methods: A smartphone app was used to collect evaluations of operative autonomy measured using the 4-point Zwisch scale, which describes defined steps in the progression from novice ("show and tell") to autonomous surgeon ("supervision only").

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Background: We investigated attending surgeon decisions regarding resident operative autonomy, including situations where operative autonomy was discordant with performance quality.

Methods: Attending surgeons assessed operative performance and documented operative autonomy granted to residents from 14 general surgery residency programs. Concordance between performance and autonomy was defined as "practice ready performance/meaningfully autonomous" or "not practice ready/not meaningfully autonomous.

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Background: Concerns exist regarding the competency of general surgery graduates with performing core general surgery procedures. Current competence assessment incorporates minimal procedural numbers requirements.

Methods: Based on the Zwisch scale we evaluated the level of autonomy achieved by categorical PGY1-5 general surgery residents at 14 U.

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Introduction: The evolution of Natural Orifice Translumenal Endoscopic Surgery (NOTES) represents a case study in surgical procedural evolution. Beginning in 2004 with preclinical feasibility studies, and followed by the creation of the NOSCAR collaboration between The Society of American Gastrointestinal and Endoscopic Surgeons and the American Society for Gastrointestinal Endoscopy, procedural development followed a stepwise incremental pathway. The work of this consortium has included white paper analyses, obtaining outside independent funding for basic science and procedural development, and, ultimately, the initiation of a prospective randomized clinical trial comparing NOTES cholecystectomy as an alternative procedure to laparoscopic cholecystectomy.

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Background: Laparoscopic common bile duct exploration is an underutilized treatment for choledocholithiasis. We sought to evaluate the impact of a simulation-based mastery-learning curriculum for surgical residents on laparoscopic common bile duct exploration utilization and to compare outcomes for patients treated with laparoscopic common bile duct exploration versus endoscopic retrograde cholangiopancreatography (ERCP).

Methods: The number of laparoscopic common bile duct explorations performed before and after curriculum implementation was reviewed and outcomes were compared between patients with choledocholithiasis managed with laparoscopic common bile duct exploration and endoscopic retrograde cholangiopancreatography.

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Background: Educating residents in the operating room requires balancing patient safety, operating room efficiency demands, and resident learning needs. This study explores 4 factors that influence the amount of autonomy supervising surgeons afford to residents.

Methods: We evaluated 7,297 operations performed by 487 general surgery residents and evaluated by 424 supervising surgeons from 14 training programs.

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Objective: This study evaluates the current state of the General Surgery (GS) residency training model by investigating resident operative performance and autonomy.

Background: The American Board of Surgery has designated 132 procedures as being "Core" to the practice of GS. GS residents are expected to be able to safely and independently perform those procedures by the time they graduate.

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Gastrointestinal (GI) surgery is a dynamic, exciting field that has dramatically evolved over the past three decades. According to a survey of leaders in GI surgery, the development of minimally invasive surgery has been the most significant advance during this period of time. The author traces his pursuit of minimally invasive surgery and its impact on his career satisfaction.

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