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Speciality Spotlight
Obesity
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Lloyd D MacLean, Barbara M Rhode, and Carl W Nohr (The Department of Surgery, Royal Victoria Hospital and McGill University, Montreal, Quebec, Canada)
Late Outcome of Isolated Gastric Bypass
Annals of Surgery, April 2000, vol.231(4), 524-528.
This study was conducted to study the long term (> 5 years) results of isolated gastric bypass operation performed for severe obesity.
The study focussed on documentation of weight loss and the final approximation to normal, defined as Body Mass Index (BMI) of 20-25 kg/m2. In addition the lowest weight and the time of its occurrence, late weight gain, death and need for additional operations was also recorded.
243 patients were classified as obese (BMI 36-39 kg/m2), morbidily obese (BMI 40-49 kg/m2) and superobese (>50kg/m2). One patient died of pulmonary embolism on the second postoperative day. There were 2 late deaths, one from a suicide 4.75 years postoperative and another from alcoholic cirrhosis of the liver 6 years after surgery.
60% of obese and morbidity obese patients achieved an excellent result (BMI < 30kg/m2), 33% had a good result (BMI 30-35 kg/m2) and 7% had poor results (BMI 735 kg/m2). The superobese showed excellent results in 26%, a good result in 31% and poor result in 43%. The conclusion was that the operation was successful in 93% of obese and morbidity obese and in 57% of superobese patients.
Late operations were required in several patients-59(24%) required a cholecystectomy, 52(21%) required excision of debilitating abdominal panniculus, 40 (16%) required repair of ventral hernia, 2% had small gut obstruction and 2% had gastrogastric fistula.