Related Experiment Videos
Gallbladder emptying determines early gallstone clearance after shock-wave lithotripsy
J Pauletzki1, C Sailer, U Klüppelberg
1Department of Medicine II, Klinikum Grosshadem, University of Munich, Germany.
Gastroenterology
|November 1, 1994
Summary
Effective gallbladder emptying significantly improves gallstone clearance after shock-wave lithotripsy and ursodeoxycholic acid (UDCA) treatment. Patients with better gallbladder ejection fractions achieve faster stone fragment elimination.
Area of Science:
- Gastroenterology
- Hepatology
- Medical Imaging
Background:
- Gallstone clearance after lithotripsy and bile acid therapy relies on fragment evacuation and dissolution.
- Impaired gallbladder emptying is common in gallstone patients, potentially delaying clearance post-lithotripsy.
Purpose of the Study:
- To investigate the impact of gallbladder emptying on gallstone clearance following shock-wave lithotripsy combined with ursodeoxycholic acid (UDCA) therapy.
- To assess the relationship between gallbladder ejection fraction and stone fragment clearance rates.
Main Methods:
- Prospective study of 57 patients with single radiolucent gallbladder stones (<= 20 mm).
- Gallbladder emptying assessed sonographically before and after 2 weeks of UDCA treatment.
- Evaluation of gallbladder fasting volume, residual volume, ejection rate, and ejection fraction.
Main Results:
- UDCA increased fasting and residual gallbladder volume but did not alter ejection fraction.
- Patients with ejection fraction > 60% showed significantly higher complete gallstone clearance rates at 1, 2, and 3 months post-lithotripsy.
- Higher ejection fractions and ejection rates correlated with faster stone fragment clearance, especially within the first month.
Conclusions:
- Gallbladder emptying function is a critical factor influencing the speed of gallstone clearance after lithotripsy.
- Assessing gallbladder ejection fraction may help predict treatment outcomes for gallstone lithotripsy.