Effect of Morbid Obesity Surgery on the Liver

Abstract

Morbid obesity is defined as a body mass index (BMI) greater than 40 kg/m2 or a BMI greater than 35 kg/m2. It is associated with a spectrum of liver abnormalities known as nonalcoholic fatty liver disease (NAFLD). Nonalcoholic fatty liver disease (NAFLD) is the name given to a spectrum of liver disorders associated with hepatic steatosis that is not due to significant alcohol consumption or other secondary causes, such as steatogenic medication, or inborn errors of metabolism. The Diagnosis of suspected NAFLD involves establishing that the patient satisfies the diagnostic criteria for NAFLD and excluding the presence of other co existing liver diseases. Effective weight loss therapy can reverse many of the adverse effects of severe obesity. Available therapies include lifestyle changes pharmacologic therapy, and surgery Bariatric surgical procedures can be categorized as malabsorptive, restrictive, or combined, based on their effects on the digestive system. Surgery is usually successful in inducing substantial weight loss in the majority of obese patients with improvement or reversal of obesity-related comorbidities and is achieved primarily by an inevitable reduction in energy intake. Key word Fatty Liver. Obesity, Morbid. Bariatric Surgery