Jeffrey S. Levy

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BACKGROUND Simulation-based training can improve technical and nontechnical skills in surgery. To date, there is no consensus on the principles for design, validation, and implementation of a simulation-based surgical training curriculum. The aim of this study was to define such principles and formulate them into an interoperable framework using(More)
Indices of respiratory muscle strength, pulmonary function, and pulmonary diffusing capacity were measured in 11 malnourished children (age 10 to 17 years) with cystic fibrosis, before and after improvement of nutritional status with supplemental parenteral nutrients for 1 month. During this time, the children received 120% of estimated energy requirements(More)
This study tested the hypothesis that exposure to chronic stressors, which reflect persistent, negative life situations, would have greater physiological, psychological, and physical health costs than exposure to episodic or intermediate-length stressors, which reflect relatively transient, negative life situations. We also tested whether cardiovascular(More)
We have evaluated a standardized prospective system for managing episodes of fever in pediatric patients with indwelling central vein catheters being used primarily for delivery of parenteral nutrients. Over an 18-month period 72 such patients, accounting for 4347 "catheter days," were followed. Thirty-two patients experienced a total of 88 episodes of(More)
Extreme caution and meticulous surgery are imperative when treating the surface of the diaphragm. This procedure should only be performed by an experienced laparoscopic surgeon after appropriate consultation with a cardiothoracic surgeon. Proper care, a thorough understanding of surrounding anatomic structures, and familiarity with laparoscopic(More)
Gastrointestinal (GI) abnormalities are frequent in patients with Down's syndrome. In a 12-year retrospective review, we identified 187 patients with Down's syndrome admitted to the Columbia-Presbyterian Medical Center. Twenty-seven had major GI disorders, the most common being duodenal stenosis (DS, nine), gastroesophageal reflux (GER, five), imperforate(More)
Three infants aged 2 days to 11 weeks with conjugated hyperbilirubinenemia, had sonographically documented dilated common hepatic bile ducts, and echogenic material in the gallbladder. A 2-day-old infant, born to a diabetic mother, had none of the classic predisposing factors for cholelithiasis, and two infants had received total parenteral nutrition (TPN)(More)
Objective: The conventional approach to resection of anterior mediastinal masses is median sternotomy. Advances in thora-coscopy have made it possible to perform excision of mediasti-nal parathyroid adenoma using minimally invasive techniques. Methods and Procedures: A 67 year old female was found to be hypercalcemic on routine chemistry analysis. Calcium(More)