Valerie J. Halpin

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Experience with laparoscopic resection of pancreatic neoplasms remains limited. The purpose of this study is to critically analyze the indications for and outcomes after laparoscopic resection of pancreatic neoplasms. The medical records of all patients undergoing laparoscopic resection of pancreatic neoplasms from July 2000 to February 2006 were reviewed.(More)
The purpose of this study is to characterize the esophageal motor and lower esophageal sphincter (LES) abnormalities associated with epiphrenic esophageal diverticula and analyze outcomes for laparoscopic esophageal diverticulectomy, myotomy, and partial fundoplication. The endoscopic, radiographic, manometric, and perioperative records for patients(More)
The purpose of this study is to determine the incidence of residual common bile duct (CBD) stones after preoperative ERCP for choledocholithiasis and to evaluate the utility of routine intraoperative cholangiography (IOC) during laparoscopic cholecystectomy (LC) in this patient population. All patients who underwent preoperative ERCP and interval LC with(More)
BACKGROUND The purpose of this study was to compare the results of laparoscopic intracorporeal ultrasound (LICU) to those of fluoroscopic intraoperative cholangiography (FIOC) during laparoscopic cholecystectomy (LC) after the initial learning curve for LICU. METHODS Data were prospectively collected on patients undergoing LC. A consecutive series of 394(More)
OBJECTIVE Adiponectin is the most abundant protein secreted by adipose tissue and is inversely associated with adiposity and insulin resistance. The aim of this study was to evaluate the hypothesis that marked weight loss, induced by gastric bypass surgery (GBS), would increase adiponectin gene expression in both upper and lower subcutaneous body fat and(More)
The purpose of this study was to assess tumor implantation at abdominal wound sites following manipulation of a solid abdominal tumor. GW-39 human colon cancer cells were injected into the omentum of golden Syrian hamsters. At 2 weeks, an omental tumor was harvested and animals were randomized to bivalve (A), crush (B), strip (C), or excision (D), with or(More)
Laparoscopic Roux-en-Y gastric bypass (LRYGB) requires specialized training commonly acquired during a fellowship. We hypothesized that fellows affect patient outcomes and this effect varies during training. We included all LRYGB from the 2005 to 2009 American College of Surgeons-National Surgical Quality Improvement Program database. Cases without trainees(More)
The gold standard for the objective diagnosis of gastroesophageal reflux disease (GERD) is ambulatory-pH monitoring off medications. Increasingly, impedance-pH (MII-pH) monitoring on medications is being used to evaluate refractory symptoms. The aim of this study was to determine whether an MII-pH test on medications can reliably detect the presence of(More)
This study aimed to evaluate the clinical utility of routine barium esophagram after laparoscopic anterior esophageal myotomy for achalasia. The records of 260 consecutive patients who underwent laparoscopic anterior esophageal myotomy for achalasia from May 1996 to August 2007 were reviewed from a prospective institutional review board–approved database.(More)
BACKGROUND With worldwide increases in esophageal cancer and obesity, esophagectomies in the morbidly obese (MO) will only increase. Risk stratification and patient counseling require more information on the morbidity associated with esophagectomy in the obese. METHODS We studied nonemergent subtotal or total esophagectomies with reconstruction in the(More)