Journal
ORVOSI HETILAP
Volume 163, Issue 10, Pages 400-406Publisher
AKADEMIAI KIADO ZRT
DOI: 10.1556/650.2022.32393
Keywords
endoscopic ultrasonography; common bile duct stones; choledocholithiasis; endoscopic retrograde chol-angiopancreatography; ERCP; American Society for Gastrointestinal Endoscopy; ASGE
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The aim of this study was to assess the diagnostic accuracy of endoscopic ultrasonography in patients with suspected choledocholithiasis. The results showed that endoscopic ultrasonography had high sensitivity and specificity in detecting and evaluating common bile duct stones.
Introduction: The likelihood of common bile duct stones can be prognosticated by various clinical predictors, how-ever, the sensitivity and specificity of these factors are moderate. Endoscopic ultrasonography has been shown to be a semi-invasive precise test for the detection of common bile duct stones. Objective: Our aim was to assess the diagnostic accuracy of endoscopic ultrasonography in patients with suspected choledocholithiasis. Method: Patients of this prospective study were categorized and divided into intermediate likelihood and high likeli-hood groups according to the clinical predictors defined by the American Society of Gastrointestinal Endoscopy (ASGE) guidelines and referred for linear endosonography. Endoscopic retrograde cholangiopancreatography (ERCP) was performed if needed. Results: A total of 95 patients were assessed. Common bile duct stones were detected by endoscopic ultrasonography overall in 53 (56%) patients: 55% (39/71) in the intermediate likelihood and 58% (14/24) in the high likelihood group of patients. The detected common bile duct stones in all patients were confirmed by ERCP. There was no significant difference (p = 0.56) in the detection of stones by ERCP between the two likelihood groups. ERCP con-firmed choledocholithiasis only in one patient whose preceding endosonography did not detect stone. The specific-ity and sensitivity of endoscopic ultrasonography were 100% and 98%, the positive predictive value and negative predictive value were 100% and 98%, respectively. Discussion: Estimating the likelihood of choledocholithiasis based on various clinical predictors might be challenging. Conclusion: Endoscopic ultrasonography is a highly sensitive and accurate diagnostic tool for the detection and evaluation of common bile duct stones also in patients with previous normal imaging findings.
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