What does SOD feel like?

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.

How common is SOD?

Sphincter of Oddi dysfunction occurs most frequently in females, generally aged 20 to 50. The prevalence is approximately 1.5%, but this is likely an underestimate due to under testing and a lack of concrete biochemical markers for identification.

What is sphincter of Oddi manometry?

Your doctor may recommend a procedure called sphincter of Oddi manometry, which is an advanced endoscopic retrograde cholangiopancreatography (ERCP) procedure. It lets your doctor measure the pressures around the sphincter of Oddi muscle and look for abnormalities.

What triggers sphincter of Oddi dysfunction?

What Causes Sphincter of Oddi Dysfunction? Sphincter of Oddi dysfunction can be caused by scarring, spasm, strictures, or relaxation of the valve. When this happens, the bile and pancreatic juice can’t flow forward. This causes a backup of digestive juices that causes severe abdominal pain.

What medication relaxes the sphincter of Oddi?

Sphincter of Oddi pharmacology is of clinical interest. The administration of sphincter-relaxing agents, in particular nitroglycerin and butylscopolaminium bromide, enables the endoscopist to extract small common bile duct stones without previous papillotomy.

What triggers SOD?

The cause of sphincter of Oddi dysfunction is unknown. Several theories have been proposed including the presence of microlithiasis (microscopic stones in the bile) and duodenal inflammation.

How do I control my SOD pain?

Nitrates and calcium channel blockers have been used to help relieve symptoms. These medications can sometimes stop the spasms associated with sphincter of Oddi dysfunction and should be offered first in type III SOD patients before suggesting invasive therapies.

What aggravates sphincter of Oddi dysfunction?

Can a HIDA scan diagnose sphincter of Oddi dysfunction?

WH The HIDA scan is a study that follows the transit of a radioisotope as it passes from the hilum of the liver down the biliary tract to the duodenum. If there is a delay in transit, it suggests Sphincter of Oddi dysfunction.