Acute renal failure is typical in patients with renal cortical necrosis, with associated complications (eg, hyperkalemia, fluid overload). Chronic renal failure, occurring in 30-50% of patients, requires dialysis and transplantation.
The average hospital stay is 1 to 3 nights which varies depending on type of surgery and your overall condition. Duodenal switch surgery: 2 to 3 days; Gastric bypass surgery: 2 to 3 days; Gastric sleeve surgery: 2 to 3 days; Mini gastric bypass: 2 to 3 days; Gastric banding surgery (LAP-BANDÂ®): 1 day or less; Gastric Balloon: Same-day (outpatient)
Most gastric bypass surgery is laparoscopic, which means the surgeon makes small cuts. That makes for shorter recovery time. Most people stay in the hospital 2 to 3 days, and get back to normal activities in 3 to 5 weeks. If the surgery must be open, meaning the surgeon has to make a larger cut, healing takes longer.