Dimitrios Stefanidis

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BACKGROUND Proficiency-based training in laparoscopic suturing and knot tying translates to the operating room, but little is known about the durability of acquired skill. The purpose of this study was to determine the effect of maintenance training on skill retention after demonstration of proficiency. STUDY DESIGN Medical students (n=18) with no(More)
BACKGROUND Laparoscopic simulator training translates into improved operative performance. Proficiency-based curricula maximize efficiency by tailoring training to meet the needs of each individual; however, because rates of skill acquisition vary widely, such curricula may be difficult to implement. We hypothesized that psychomotor testing would predict(More)
BACKGROUND The duodenojejunal bypass liner (DJBL) (EndoBarrier Gastrointestinal Liner) is an endoscopically placed and removable intestinal liner that creates a duodenojejunal bypass resulting in weight loss and improvement in type 2 diabetes mellitus. OBJECTIVE Weight loss before bariatric surgery to decrease perioperative complications. DESIGN(More)
BACKGROUND Gallbladder perforation is difficult to diagnose and is associated with significant morbidity. This study investigates factors affecting outcome in patients with gallbladder perforation over two decades. MATERIALS AND METHODS From 1982 to 2002 data from patients undergoing cholecystectomy at one institution were prospectively collected.(More)
Diagnostic laparoscopy is minimally invasive surgery for the diagnosis of intraabdominal diseases. This study aim was a critical examination of the available literature on the role of laparoscopy for the diagnosis and treatment of acute intraabdominal conditions. A systematic literature search of English-language articles on MEDLINE, the Cochrane database(More)
Gastroesophageal reflux disease (GERD) is a significant health concern. Medical management is expensive and may be necessary lifelong. Effective surgical therapy is available and, if performed by experienced surgeons, is successful in greater than 90% of patients. Laparoscopic techniques which reproduce their "open" counterpart are also available. When(More)
The guidelines for the surgical treatment of esophageal achalasia are a series of systematically developed statements to assist surgeon (and patient) decisions about the appropriate use of minimally invasive techniques for the treatment of achalasia in specific clinical circumstances. It addresses the indications, risks, benefits, outcomes, alternatives,(More)
The guidelines for the management of hiatal hernia are a series of systematically developed statements to assist physicians’ and patients’ decisions about the appropriate use of laparoscopic surgery for hiatal hernia. The statements included in this guideline are the product of a systematic review of published literature on the topic, and the(More)
INTRODUCTION A long and rich research legacy shows that under the right conditions, simulation-based medical education (SBME) is a powerful intervention to increase medical learner competence. SBME translational science demonstrates that results achieved in the educational laboratory (T1) transfer to improved downstream patient care practices (T2) and(More)
Laparoscopic camera navigation (LCN) training on simulators has demonstrated transferability to actual operations, but no comparative data exist. The objective of this study was to compare the construct and face validity, as well as workload, of two previously validated virtual reality (VR) and videotrainer (VT) systems. Attendees (n = 90) of the SAGES 2005(More)