Background. Gastric banding (GB) is a common bariatric procedure that is performed worldwide. Weight loss can be substantial after this procedure, but it is not sufficient in a significant portion of patients. Long-term rates for associated complications increase with every year of follow up, and only a few long-term studies have been published that examine these rates. We present our results after 14 years of postoperative follow up. Methods. Two hundred patients were operated upon form 01.02.1995 to 31.01.2009. Data collection was performed prospectively. In retrospective analysis, we analyzed weight loss, short- and long-term complications, amelioration of comorbidities and long-term outcome.
Results. The mean postoperative follow up time was 94.4 months (range 2–144). The follow up rate was 83.5%. The incidence of postoperative complications for slippage was 2.5%, for pouch dilatation was 9.5%, for band migration was 5.5% and 12.0% for overall band removal. After 14 years, the reoperation rate was 30.5% with a reoperation rate of 2.2% for every year of follow up. Excess weight loss was 40.2% after 1 year, 46.3% after 2 years, 45.9% after 3 years, 41.9% after five years, 33.3% after 8 years, 30.8% after 10 years, 33.3% after 12 years and 15.6% after 14 years of follow up. Conclusion. The complication and reoperation rate after GB is high. Nevertheless, GB is still a therapeutic option in morbid obese patients, but the criteria for patient selection should be carefully evaluated.
Band migration requires band removal. Different symptoms and complications influence the kind of band removal. Multicentre data were evident in the case of high long-term complication rate after ASGB. Data of the German multicentre trial show the trend from restrictive bariatric procedures to malabsorptive approach.
Rhabdomyolysis is an uncommon event in bariatric surgery. It can be caused by ischemia, crush injury, alcohol ingestion and drug intake, and as a consequence renal failure can develop. A few reports indicate that patients undergoing bariatric surgical intervention are at risk for rhabdomyolysis. A super-obese male (BMI 52 kg/m2) is reported, who underwent laparoscopic biliopancreatic diversion with duodenal switch (BPD/DS). Operative time was 265 minutes, and the BPD/DS operation was uneventful. Post-operatively, the patient complained of pain in both hips and the left shoulder, and suffered oliguria. He was treated with fluids (isotonic saline), bicarbonate, and mannitol. Despite this, he developed renal failure, which subsequently required hemodialysis. The patient died from arrhythmia and cardiac arrest on the 8th postoperative day. Obese patients undergoing bariatric surgery are at risk of rhabdomyolysis. Prolonged compression of the muscles during the surgical intervention, in long laparoscopic procedures, predisposes to this complication.
On 1 July 2009, the German Network for Health Services Research [Deutsches Netzwerk Versorgungsforschung e. V. (DNVF e. V.)] approved the Memorandum III "Methods for Health Services Research", supported by the member societies mentioned below and published in this journal (Gesundheitswesen 2009; 71: 505-510). The focus of this part of the Memorandum III "Methods for health services research" is on the questions and methods of organisational health services research. In a first step, we describe the central questions which are at the core of organisational health services research. In a second step, we describe the methodological standards and requirements with regard to a) sampling, b) measurement and c) research design. We present a phase model for complex intervention trials. This model allows to conduct high quality organisational health services research, to integrate different methods of social research and to show in which phase they are of special importance.
A 63-year-old woman with BMI 46 underwent laparoscopic gastric banding. In the standardized follow-up after 14 and 24 months, the GI series and gastroscopy showed no pathological signs. The patient had hematemesis 32 months after gastric banding, followed by symptoms of obstruction, for which a laparotomy was performed. At operation, peritoneal carcinomatosis due to gastric cancer was found. Symptoms after bariatric procedures can be similar to symptoms of gastric or esophageal cancer. We believe that yearly postoperative gastroscopy is indicated to exclude pathological changes.
Band migration is a late complication after gastric banding that requires band removal. Various symptoms and complications of band migration influence the kind of band removal. The causes of band migration and its treatment are discussed.
Vitamin A deficiency (VAD) after bariatric surgery is a well-documented complication. Clinical signs of VAD deficiency are significant if the vitamin A level is below 100 mug/L (4 mumol/L). Main symptom of VAD is nyctalopia. It has been described in several reports after malabsorptive bariatric procedures. We report a 52-year-old man with VAD complained of night blindness and optic neuropathy after undergoing a duodenal switch procedure. The case illustrates the necessity of lifelong vitamin supplementation after malabsorptive bariatric operations.
In PCOS with metabolic syndrome, bariatric surgery is an option to reduce weight and to treat associated metabolic disorders. Surgery should be performed based on the body mass index, the metabolic disorders, and the wish of the patient to become pregnant.
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