Vafa Shayani

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Background: Previous studies have documented an increase in intracranial pressure with abdominal insufflation, but the mechanism has not been explained. Methods: Nine 30–35-kg domestic pigs underwent carbon dioxide insufflation at 1.5 l/min. Intracranial pressure (ICP), lumbar spinal pressure (LP), central venous pressure (CVP), inferior vena cava pressure(More)
BACKGROUND The objective of this analysis is to report interim, 2-year results for morbidly obese patients who have undergone laparoscopic adjustable gastric banding in the LAP-BAND AP® EXperience (APEX) trial. METHODS The APEX trial is an ongoing, multicenter, prospective, open-label, 5-year study of the LAP-BAND AP® System (LBAP) in 517 morbidly obese(More)
BACKGROUND The recent article by Guller, Klein, Hagen was reviewed and discussed by the authors of this response to critically analyze the validity of the conclusions, at a time when patients and providers depend on peer reviewed data to guide their health care choices. The authors of this response all have high volume bariatric surgery practices(More)
Background: As the variety of procedures performed with laparoscopic technology increases, the skill levels and equipment demands also increase. Laparoscopic appendectomy, hernia repair, colon resection, and Nissen fundoplication all require someone whose only responsibility is to control the laparoscope and therefore the operative field. This is usually(More)
The first laparoscopic Nissen fundoplication for the management of gastroesophageal reflux disease (GERD) was reported in 1991 [4]. Due to the very promising early postoperative results, laparoscopic fundoplication has gained significant popularity for the treatment of patients with advanced GERD. Although heartburn is the most commonly reported symptom(More)
We report an unusual case of acute appendicitis caused by a mucinous cystadenoma of the cecum obstructing the lumen of the appendix. At laparoscopic appendectomy, an inflamed appendix was identified and resected. Subsequent histologic evaluation of the appendiceal base revealed mucin lakes. After discovery of a cecal mass at colonoscopy, the patient(More)
Operations on the common bile duct can result in severe long-term consequences. To prevent some of these complications, it is common practice to drain the biliary tree with a T-tube. The T-tube is usually removed 2 weeks after it was placed. There have been numerous reports of bile leak following T-tube removal in the literature. These leaks can result in(More)
Historically, parastomal hernias have represented a challenge to surgeons. Unsatisfying results from surgical repair have led to many modifications over time. Surgical repair of parastomal hernias has evolved from the traditional open technique to the current laparoscopic approach. We outline a technique that combines mesh reinforcement with a minimally(More)
Operations on the common bile duct can result in severe long-term consequences. To prevent some of these complications, it is common practice to drain the biliary tree with a T-tube. The T-tube is usually removed 2 weeks after it was placed. There have been numerous reports of bile leak following T-tube removal in the literature. These leaks can result in(More)