Simulation training for the endoscopic management of upper gastrointestinal bleeding: a nationwide survey of rural surgeons' needs and preferences analysis.

BACKGROUND: Published needs analyses of rural surgeons have identified a need for training in the endoscopic management of non-variceal upper gastrointestinal bleeding (NVUGIB). The study aim was to survey rural surgeons regarding their requirements and preferences for a simulation model on which they could rehearse the endoscopic management of NVUGIB. METHODS: Rural surgeons were contacted via the American College of Surgery Advisory Council listserv and invited to complete an online survey. RESULTS: A total of 66 responses were received, representing all 4 US regional divisions. Seventy-seven percent of respondents perform > 100 endoscopy cases per year. A majority have no experience with simulation models (77%), citing cost, time, and access to training courses as the three most limiting factors. Thirty-three percent lacked confidence in managing UGIBs, and 73% were interested in receiving additional training. Preference analysis revealed that respondents preferred a portable simulation model (81%) that costs between $500 and $1000 (46%), and requires 1-2 weeks of training (34%). Verbal feedback from an expert was viewed as the most helpful type of feedback (61%). CONCLUSION: Rural surgeons frequently perform flexible endoscopy in their practice and are interested in further training for the endoscopic management of NVUGIB. These results will be used to develop a simulation platform for training in the endoscopic management of NVUGIB that meets rural surgeons' needs.

Task Deconstruction of Colonic Endoscopic Submucosal Dissection (cESD): An Expert Consensus.

BACKGROUND: Slow adoption of colonic ESD (cESD) in the US is multifactorial due to: lack of clinical training construct (e.g., gastric ESD in Japan), complication risks, and technical difficulty. More than 28,000 patients/year undergo colonic resection for benign lesions that could be managed effectively with cESD. Selected patients could avoid surgery if procedural adoption of cESD increased due to more accessible training. Current US cESD training is scarce, and existing programs are piecemeal. There is a need to develop an effective national training program for practicing endoscopists. A prerequisite to training development is a comprehensive task list delineating procedural steps. The aim of this work was to describe an evidence-based method of deconstructing cESD into the essential steps to provide a task list to guide teaching and assessment. METHODS: Subject-matter experts (SMEs) performed a literature review to create an initial procedural step list. Eleven clinical cESD SMEs and four educational SMEs formed a 'cESD Working Group' to develop consensus regarding steps. Through a two-stage modified Delphi process, a consensus on a comprehensive standard cESD deconstructed task list was reached. The aim was to standardize cESD teaching to efficiently bring a novice to safe performance. RESULTS: A literature review identified eight initial cESD steps. First-round Delphi consensus was gained on seven steps. Semi-structured focus group discussions resulted in consensus on a modified version of 7 of the initial steps, with addition of two steps. Consensus on procedural actions needed to perform each step was achieved after the hands-on laboratory. The final result was a ten-step deconstructed task list for standard cESD. CONCLUSION: The development of a standardized cESD procedural task list provides a foundation to safely and efficiently teach cESD to practicing endoscopists. This list can be used to develop a training pathway to increase procedural adoption. Selected patients currently undergoing colonic resections could benefit from increased adoption of cESD.

Derivation of a cost-saving screening strategy for asymptomatic primary hyperparathyroidism.

BACKGROUND: Our study seeks to find a cost-saving screening strategy in a primary care population for diagnosing primary hyperparathyroidism based on peak serum total calcium level, age, and patient sex. METHODS: Laboratory data resulting from primary care office visits at our institution between January 2016 through December 2017 to evaluate patients who had at least 1 episode of hypercalcemia (≥10.5 mg/dL). For each serum calcium threshold, we calculated the percentage of patients who were found to have an increased parathyroid hormone level (≥65 pg/mL). We determined whether net cost savings could be achieved by screening hypercalcemic patients given their probability of primary hyperparathyroidism and expected cost savings from fracture risk reduction, given their sex and age. RESULTS: From 155,350 unique patients in the study period, a total of 2,271 had a minimum of 1 hypercalcemic lab value. After exclusion criteria, there were 1,326 patients of whom 27.5% had a parathyroid hormone level checked. Cost savings was established at a screening threshold of 10.5 for all patients until age 66 years for men and 69 years for women. For men aged 67-68 y and women aged 70-71 years, the optimal screening threshold was 10.8 mg/dl. CONCLUSION: Cost savings can be achieved by screening hypercalcemic patients with a life expectancy exceeding 16 years, with varying thresholds based on age and sex.

Clinical Experience with the Gore Hybrid Vascular Graft in Complex Revascularizations Demonstrates Safety and Efficacy.

BACKGROUND: Arterial revascularizations can present significant challenges when vessels are disadvantaged and advances in technology present the surgeon with innovative opportunities. A number of studies have used the GORE® Hybrid Vascular Graft (GHVG), and we have been using this device in arterial revascularizations since it came to market. The aim of this study is therefore to present a large single-center experience using the GHVG. This series presents patients with complex revascularizations in multiple vascular beds. METHODS: We retrospectively analyzed a single-center series of 43 patients who received a total of 56 GHVGs in complex revascularization procedures at Houston Methodist Hospital from March 2012 to April 2017. We excluded 5 patients (7 grafts in total) because of loss of follow-up. An additional 8 patients were excluded from the analysis (11 grafts in total) secondary to mortalities unrelated to their grafts (7 patients died during index hospitalization and 1 patient died shortly after discharge). RESULTS: Our results demonstrated an 18-month primary patency, assisted primary patency, and secondary patency of 82, 86, and 96%, respectively. These complex revascularizations included a total of 56 devices placed. GHVGs were placed in the external iliac artery (27/56), renal artery (12/56), common femoral artery (6/56), superficial femoral artery (4/56), common iliac artery (3/56), grafts (3/56), profunda femoris artery (1/56), and the superior mesenteric artery (1/56). Early mortality in patients (7/8) was because of the nature of their disease and not related to the surgical intervention. CONCLUSIONS: The GHVG has the ability to create a sutureless anastomosis in a disadvantaged vessel or to promote a potentially better outcome by either avoiding prolonged ischemia to visceral branches or avoiding extensive abdominal or retroperitoneal exposure in an iliofemoral bypass. These results demonstrate the value of the GHVG in complex revascularizations not amenable to traditional open surgical bypass. LEVEL OF EVIDENCE: IV.

Training Effects of Visual Stroboscopic Impairment on Surgical Performance: A Randomized-Controlled Trial.

OBJECTIVE: There have been numerous advances to accelerate and improve quality and dexterous proficiency of surgical training to meet the growing US demand of graduating surgeons. The authors aimed to investigate the learning effects of such limited visual input on the surgical proficiency in untrained novice surgeons. DESIGN: A prospective randomized-controlled study was created with 11 participants in the study and 11 in the control group. SETTING: An inanimate surgical simulation lab of a tertiary academic institution (Houston Methodist Hospital, Houston, Texas). PARTICIPANTS: Adult medical students in the experimental group were wearing stroboscopic eyewear while performing the same tasks as students in the control group with normal vision. For 5 weeks, the subjects were scored during 3 standardized surgical tasks from the American College of Surgeons and the Association of Program Directors in Surgery Resident Skills Curriculum: knot tying, simple interrupted sutures, and a running stitch. Pretrial, we employed the State-Trait Anxiety Inventory and post-trial, the NASA Task Load Index. RESULTS: The demographic characteristics of our study participants were uniformly distributed between the 2 cohorts: each group had 7 males and 4 females. Average ages were 23.6 and 24.2 years (p = 0.471). The anxiety was low during all 5 sessions and indifferent between both groups. At the end of the study, no changes were observed in the stroboscopic group for the knot-tying task (p = 0.619). However, for the simple interrupted and the running stitch, the students with stroboscopic glasses performed significantly better (p = 0.001 and p = 0.024, respectively). The stroboscopic students also had significantly lower NASA workload scores (p = 0.001). CONCLUSIONS: Regular training with stroboscopic glasses that limit visual input has a significant positive effect on the technical skills of novice surgical trainees with regards to more complex tasks such as multiple simple interrupted suturing or running suture. Intermittently impaired vision is beneficial in the early education of students and surgical residents.