Background: Laparoscopic hiatal hernia repair (LHHR) is a complex operation requiring advanced surgical training. Surgical simulation offers a potential solution for learning complex operations without the need for high surgical volume. Our goal is to develop a virtual reality (VR) simulator for LHHR; however, data supporting task-specific metrics for this procedure are lacking.
View Article and Find Full Text PDFTechnical performance in surgery has been associated with patient outcomes. Robotic surgery is unique in that both a console surgeon and bedside surgeon are required. A systematic review according to PRISMA guidelines identified all pertinent literature regarding skill level of the bedside assistant with regards to patient outcomes in robotic surgery.
View Article and Find Full Text PDFBackground: Anxiety and depression have been associated with an increased perception of gastroesophageal reflux symptoms, but there is a paucity of data regarding the outcomes of laparoscopic Nissen Fundoplication (LNF) in this patient population.
Methods: We performed a retrospective cohort study including all patients undergoing LNF between 2011 and 2017. Patients were stratified by baseline usage of serotonin-modulating medication or benzodiazepines as a proxy for depression and anxiety, respectively.
Introduction: The optimal management of functional esophagogastric junction outflow obstruction (EJOO) remains controversial particularly in the setting of concomitant gastroesophageal reflux disease (GERD). There remains a paucity of data regarding the outcomes of laparoscopic Nissen fundoplication (LNF) in this patient population. We hypothesized that GERD patients with manometric findings of EJOO on preoperative manometry do not have increased rates of postoperative dysphagia compared to those with normal or hypotensive LES pressures.
View Article and Find Full Text PDFIntroduction: Weight loss after bariatric surgery improves both blood pressure and glycemic control following surgery. The effect of bariatric surgery on renal function is not well characterized. In this study, we sought to quantify the change in renal function over time following surgery.
View Article and Find Full Text PDFBackground: We evaluated coronary angiography use among patients with coronary stents suffering postoperative myocardial infarction (MI) and the association with mortality.
Methods: Patients with prior coronary stenting who underwent inpatient noncardiac surgery in Veterans Affairs hospitals between 2000 and 2012 and experienced postoperative MI were identified. Predictors of 30-day post-MI mortality were evaluated.
Background: Echocardiography is not recommended for routine pre-surgical evaluation but may have value for patients at high risk of major adverse cardiovascular events (MACE). The objective of this study was to evaluate whether pre-operative echocardiography is associated with lower risk of post-operative MACE among patients with coronary artery disease.
Methods: Using administrative and registry data, we examined associations of echocardiography within 3 months prior to surgery with postoperative MACE (myocardial infarction, revascularization, or death within 30 days) among patients with coronary artery disease undergoing elective, non-cardiac surgeries in the United States Veterans Affairs healthcare system in 2000-2012.
Importance: Current guidelines for delaying surgery after coronary stent placement are based on stent type. However, the indication for the stent may be an important risk factor for postoperative major adverse cardiac events (MACE).
Objective: To determine whether the clinical indication for a coronary stent is associated with postoperative MACE.
Importance: Although liberal blood transfusion thresholds have not been beneficial following noncardiac surgery, it is unclear whether higher thresholds are appropriate for patients who develop postoperative myocardial infarction (MI).
Objective: To evaluate the association between postoperative blood transfusion and mortality in patients with coronary artery disease and postoperative MI following noncardiac surgery.
Design, Setting, And Participants: Retrospective cohort study involving Veterans Affairs facilities from January 1, 2000, to December 31, 2012.
Objective: To determine the incremental risk of coronary stents on adverse events in surgical patients and whether it varies over time from stent placement.
Background: Postoperative adverse cardiac events decrease as the time from stent placement increases, but the risk attributable to the stent versus the underlying cardiac disease is uncertain, as prior studies lack a control surgical population.
Methods: Data for patients with coronary stents implanted in a VA hospital from 2000 to 2010 were matched with VA Surgical Quality Improvement Program data to identify noncardiac surgery within 24 months of stent placement.
Importance: Venous thromboembolism (VTE) surveillance practices in hospitals, but not adherence to Surgical Care Improvement Program VTE prophylaxis measures, have been reported to explain the variation in VTE rates in hospitals.
Objective: To examine the relationship between inpatient surveillance testing for VTE and postdischarge VTE rates at the hospital level to determine whether more frequent inpatient surveillance is associated with reduced occurrence of postdischarge VTEs.
Design, Setting, And Participants: Retrospective study of a US national cohort of Veterans Affairs (VA) patients.
Background: Recent coronary stent placement and noncardiac surgery contribute to the risk of adverse cardiac events, but the relative contributions of these two factors have not been quantified.
Objectives: This research was designed to determine the incremental risk of noncardiac surgery on myocardial infarction (MI) and coronary revascularization following coronary stenting.
Methods: A U.