The role of endoscopic ultrasound in patients with choledocholithiasis: A pilot study

Abstract

Background and study aim. Endoscopic ultrasound (EUS) is a diagnostic modality that continues to expand its clinical applications. The aim of this study is to evaluate the diagnostic role of EUS in common bile duct stones. Patients and methods: This study was carried on 29 patients with suspected CBD stones from them only 15 patients were diagnosed as Common Bile Duct stone(s). Endoscopic retrograde cholangiopancreatography (ERCP) is considered as gold standard for diagnosis of CBD stones and compare EUS findings with that of ERCP. Results: The diagnostic performance of EUS shows that the sensitivity, specificity, PPV, NPV and accuracy of 100%, 92.8%, 93.7%, 100% and 96.5% respectively. It can catch 15 true positive cases with only one false positive case and 13 of 14 true negative cases. EUS is considered as a minimally invasive method with low incidence of complications, allowing exact determination of the site and size of stones. So EUS aid in better planning for CBD stone removal. Conclusion: EUS is considered as a minimally invasive method with low incidence of complications, allowing exact determination of the site and size of stones with good diagnostic performance.

Role of Endoscopic Ultrasound in Detection of Gallbladder Diseases

“…This result is in the same line of study number (26) that found that the two approaches were statistically equivalent as demonstrated by the McNemar conditional 1-sided test for equivalence of sensitivities (P = .27) in their comparison of Primary upper endoscopy (EGD) and transabdominal US (TUS). (26) Also, study number (21) .reported that, there are no statistically significant differences were found between EUS and MRCP in the diagnosis of CBD stones, but a trend toward higher sensitivity and specificity for EUS compared to MRCP was evident. (21) .…”

“…(26) Also, study number (21) .reported that, there are no statistically significant differences were found between EUS and MRCP in the diagnosis of CBD stones, but a trend toward higher sensitivity and specificity for EUS compared to MRCP was evident. (21) . Study number concluded that, EUS is a very useful technique for the indication of cholecystectomy in patients with microlithiasis sludge and typical symptoms of biliary colic (27) while, study (28) .concluded that, EUS seems to be a promising imaging method in the detection of microlithiasis in the gallbladder in patients with clear biliary colic and normal transabdominal US (28) .…”

“…Overall EUS accuracy was 83.2%. (20) A recent study (21) aimed to evaluate the diagnostic role of EUS in common bile duct stones. They found that EUS as diagnostic tool shows sensitivity, specificity, PPV, NPV and accuracy of 100%, 92.8%, 93.7%, 100% and 96.5% respectively.…”

“…They found that EUS as diagnostic tool shows sensitivity, specificity, PPV, NPV and accuracy of 100%, 92.8%, 93.7%, 100% and 96.5% respectively. It can catch 15 true positive cases with only one false positive case and 13 of 14 true negative cases (21) . Another study (22) focused on relatively hypoechoic areas at the cores of the polyps, reporting the presence of such hypoechoic cores on EUS to be a strong predictive factor for neoplastic polyps.…”

Diagnostic accuracy of endoscopic ultrasound in evaluation of patients with obstructive jaundice: single-center experience

“…Alhawarey et al [22] demonstrated that EUS, as diagnostic tool, has sensitivity, specificity, PPV, NPV, and accuracy of 100%, 92.8%, 93.7%, 100%, and 96.5% respectively.…”