The short-term risks of bariatric surgery
The short-term risks of bariatric surgery
Long-term benefits from bariatric surgery have been definitely established. Nonetheless, perioperative risks associated with bariatric surgery are not insignificant, especially since persons undergoing bariatric surgery often suffer comorbidities of diabetes, hypertension, and dyslipidemia.
The LABS Consortium performed an observational study of short-term outcomes subsequent to bariatric surgery in the United States.1 From 2005 to 2007, data supplied by 10 clinical sites (combined total n = 4,776 first-time bariatric surgical procedures) provided information on the composite endpoint of 30-day major adverse outcomes [death, deep vein thrombosis (DVT), postoperative intervention, and extended hospital stay]. Roux-en-Y bypass was performed on about 70% of subjects; most of the other patients underwent gastric banding.
Death occurred in 0.3% of subjects within 30 days. An additional 4% of subjects experienced at least one adverse event included in the composite primary endpoint. A previous history of DVT was associated with greater likelihood to incur a postoperative adverse event; additionally, the higher the body mass index (mean BMI in this report = 46.5 kg/m2), the greater the frequency of adverse events.
In summary, bariatric surgery has significant associated risks, surgical experts say. For most appropriately selected patients, the long-term benefits far outweigh these risks, but patients need to be informed of the potential for serious adverse outcomes, they say.
Reference
- The Longitudinal Assessment of Bariatric Surgery (LABS) Consortium. Perioperative safety in the longitudinal assessment of bariatric surgery. N Eng J Med 2009; 361:445-454.
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