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BACKGROUND Previous studies have shown that ursodiol decreases gallstone formation from 32% to 2% following open gastric bypass, but no data exist on laparoscopic Roux-en-Y gastric bypass (LRYGB) using intraoperative ultrasound (IOUS) screening. METHODS LRYGB with IOUS were performed on 195 consecutive patients. Patients with gallstones underwent(More)
BACKGROUND Upper gastrointestinal (UGI) swallow radiographs following laparoscopic Roux-en-Y gastric bypass (LRYGBP) may detect an obstruction or an anastomotic leak. The aim of our study was to determine the efficacy of routine imaging following LRYGBP. METHODS Radiograph reports were reviewed for 201 consecutive LRYGBP operations between April 1999 and(More)
BACKGROUND Resident work hours may impact patient care. We hypothesized that "call-associated" acute sleep deprivation has no effect on technical dexterity as measured on a minimally invasive surgery trainer, virtual reality (MIST VR) surgical simulator. METHODS Thirty-five surgical residents were prospectively evaluated pre-call (rested), on-call(More)
BACKGROUND Traditionally, the acquisition of surgical skill has occurred entirely in the operating room. To meet the expanding challenges of cost containment and patient safety, novel methods of surgical training utilizing ex-vivo workstations are being developed. The purpose of our study was to evaluate the impact of a laparoscopic training curriculum on(More)
Training on a video trainer or computer-based minimally invasive surgery trainer leads to improved benchtop laparoscopic skill. Recently, improved operative performance from practice on a video trainer was reported. The purpose of this study was three fold: (a) to compare psychomotor skill improvement after training on a virtual reality (VR) system with(More)
BACKGROUND Surgeons are now being assisted by robotic systems in a wide range of laparoscopic procedures. Some reports have suggested that robot-assisted camera control (RACC) may be superior to a human driver in terms of quality of view and directional precision, as well as long-term cost savings. Therefore, we setout to investigate the impact of RACC of(More)
BACKGROUND The incidence of complications after reversal of Hartmann's procedure is unknown. This study compares the morbidity of Hartmann's reversal versus loop ileostomy reversal. METHODS Two groups of 20 patients were studied retrospectively over a 5-year period. One group underwent Hartmann's takedown, and the other underwent loop ileostomy takedown.(More)
Serotonin 2C receptor (5-HT(2C)R) agonists administered systemically attenuate both cocaine-primed and cue-elicited reinstatement of extinguished cocaine-seeking behavior. To further elucidate the function of these receptors in addiction-like processes, this study examined the effects of microinfusing the 5-HT(2C)R agonist MK212 (0, 10, 30, 100 ng/side/0.2(More)
Paradoxically, stimulation of 5-HT(1B) receptors (5-HT(1B)Rs) enhances sensitivity to the reinforcing effects of cocaine but attenuates incentive motivation for cocaine as measured using the extinction/reinstatement model. We revisited this issue by examining the effects of a 5-HT(1B)R agonist, CP94253, on cocaine reinforcement and cocaine-primed(More)