Michael P. Hocking

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BACKGROUND & AIMS This study investigated the efficacy of gastric electrical stimulation for the treatment of symptomatic gastroparesis unresponsive to standard medical therapy. METHODS Thirty-three patients with chronic gastroparesis (17 diabetic and 16 idiopathic) received continuous high-frequency/low-energy gastric electrical stimulation via(More)
OBJECTIVE:The diagnosis of gastroparesis implies delayed gastric emptying. The diagnostic gold standard is scintigraphy, but techniques and measured endpoints vary widely among institutions. In this study, a simplified scintigraphic measurement of gastric emptying was compared to conventional gastric scintigraphic techniques and normal gastric emptying(More)
The functional end-to-end technique with a gastrointestinal stapler is commonly used for small-bowel anastomosis, but the effects of this anatomically side-to-side anastomosis on motility are unknown. Fasting small-bowel myoelectric activity and culture results were compared in six animals undergoing handsewn end-to-end and functional end-to-end(More)
Antiperistaltic and recurrent intussusceptions are extremely rare in the adult. We report a patient with both. The patient developed an antiperistaltic intussusception distal to her Roux enteroenterostomy years after a Roux-en-Y gastric bypass for morbid obesity. The diagnosis was made preoperatively with gastrointestinal contrast radiography and(More)
The pre and postoperative incidence of cholelithiasis were investigated in patients undergoing bariatric surgery at the University of Florida. The first part of the study was retrospective and revealed a pre and 24-month postoperative incidence of cholelithiasis of 30 and 40 percent respectively. Age and postoperative interval were not predictive of(More)
Posterior gastropexy appears to be the treatment of choice in the occasional patient with persistent debilitating post-fundoplication syndrome. This syndrome occurs to this extent only rarely (less than 1%) and chronic small-bowel obstruction or dysfunction may be a predisposing factor. We prefer the posterior gastropexy of Hill in cases of reflux(More)
This study assesses the long-term results ofjejunoileal bypass (JIB) in 43 prospectively followedpatients whose surgical bypass remained intact.Follow-up was 12.6 ± 0.25 years from JIB. Weightloss and improved lipid levels, glucose tolerance,cardiac function, and pulmonary function weremaintained. Adverse effects such as hypokalemia,cholelithiasis, and B12(More)
We studied the effect of erythromycin on gastric emptying in nine patients with gastroparesis following truncal vagotomy and antrectomy, and assessed their clinical response to chronic oral erythromycin. Gastric emptying was evaluated using a solid-phase radio-labeled meal. Patients were studied after erythromycin 200 mg intravenously (N=9) and after an(More)
Morbid obesity is a life-threatening disorder associated with medical and psychological complications. The failure of medical therapy has led to the development of a new surgical discipline called bariatric surgery, which has evolved over the past three decades. Initial techniques created malabsorption to produce weight loss. Due to complications, later(More)
Our objective was to develop an operation for morbid obesity that would be simple, safe, and effective and yet have few long-term adverse physiologic effects. Vertical gastroplasty was chosen. A small proximal gastric pouch was fashioned by stapling vertically beginning 5 cm distal to the cardia along the lesser curvature of the stomach and ending just(More)