Gastric bypass surgery may lead to an increased risk of kidney stones, a research team led by an Indian origin scientist has revealed.
The study found that morbidly obese patients who undergo a particular type of gastric bypass surgery called Roux-en-Y gastric bypass (RYGB) are at a greater risk of developing kidney stones, small, pebble-like deposits that can result in severe pain and require an operation to remove them, earlier than previously thought.
These stones develop in patients within only a few months following the procedure rather than several months to years, according to the research.
"Our data suggests that RYGB is associated with an increased risk of forming kidney stones as early as three months post-operation," said study's lead investigator, Manoj Monga, MD, FACS, Professor of Urologic Surgery, University of Minnesota, Minneapolis.
"We hope our findings and subsequent research will eventually allow clinicians to more accurately counsel patients on their individual risk of kidney stones and develop strategies for the prevention of this sometimes painful condition, such as dietary modification and medical therapy."
RYGB is the most commonly performed surgical intervention for morbid obesity. During the procedure, a small pouch is created by stapling part of the stomach together or by banding the stomach, limiting the amount of food a patient can eat. Next, a Y-shaped section of the small intestine is attached to the pouch to allow food to bypass the first part of the intestines.