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Sphincter of Oddi dysfunction: a clinical controversy.
1Department of Medicine, George Washington University, Washington, D.C.
Gastroenterology
|November 1, 1988
Summary
Diagnosing sphincter of Oddi dysfunction for biliary pain is challenging due to poorly defined diagnostic tests. New noninvasive methods and continuous manometry show promise, but controlled trials for medical therapies are needed.
Area of Science:
- Gastroenterology
- Hepatology
- Surgical Innovation
Background:
- Sphincter of Oddi dysfunction (SOD) is a significant cause of biliary-type pain.
- Current diagnostic methods for SOD, including imaging and manometry, lack defined accuracy.
- Limited evidence exists for pharmacologic management, with endoscopic sphincterotomy carrying risks.
Purpose of the Study:
- To review the current literature on diagnosing and managing sphincter of Oddi dysfunction causing biliary pain.
- To evaluate the effectiveness and limitations of existing diagnostic tests for SOD.
- To identify gaps in knowledge and suggest future research directions for SOD.
Main Methods:
- Comprehensive literature analysis of studies on sphincter of Oddi dysfunction and biliary pain.
- Evaluation of diagnostic test performance: bile duct size, drainage time, provocative tests, and manometry.
- Review of emerging noninvasive diagnostic techniques like scintigraphy and sonography.
- Assessment of treatment options including pharmacologic management and endoscopic sphincterotomy.
Main Results:
- Diagnostic tests for SOD exhibit poorly defined sensitivities and specificities.
- Noninvasive tests (quantitative nuclear scintigraphy, fatty meal sonography) show potential for diagnosing functional common bile duct obstruction.
- Continuous biliary manometry may enhance understanding of pain mechanisms in SOD.
- Limited data exists on pharmacologic management; endoscopic sphincterotomy offers pain relief but has associated risks.
Conclusions:
- Accurate diagnosis of sphincter of Oddi dysfunction remains a challenge.
- Further research is needed to validate novel noninvasive diagnostic tools.
- Controlled trials investigating medical therapies are essential for effective SOD management.
- Consensus on predictive tests for sphincterotomy response is lacking.
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