How does glucagon relax sphincter of Oddi?
Regarding this, what drugs relax the sphincter of Oddi?
Sphincter of Oddi manometry is usually performed at the time of ERCP. All drugs which relax (anticholinergics, nitrates, calcium channel blockers, and glucagon) or stimulate (narcotics or cholinergic agents) the sphincter should be avoided for at least 8-12 hours prior to manometry and during the manometric session.
Subsequently, one may also ask, what causes the sphincter of Oddi to relax?
The sphincter of Oddi refers to the smooth muscle that surrounds the end portion of the common bile duct and pancreatic duct. This muscle relaxes during a meal to allow bile and pancreatic juice to flow into the intestine. The pain may be aggravated by meals, particularly fatty foods. Opiates may also worsen symptoms.
The main symptom of SOD is severe stomach pain that comes and goes. The symptoms can feel similar to a gallbladder attack. You may have pain in your upper belly that seems to move, or spread, into your right shoulder. You may also have chest pain that feels like a heart attack.