The role of laparoscopic ultrasonography in the evaluation of suspected choledocholithiasis: A single-center experience

Kristaps Atstupens (Coresponding Author), Maksims Mukans, Haralds Plaudis, Guntars Pupelis

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Background and objectives: Opinions differ regarding the optimal diagnostic methods for patients with suspected choledocholithiasis. The aim of this study was to assess the diagnostic accuracy of laparoscopic ultrasonography (LUS) and compare it to pre-operative magnetic resonance cholangio-pancreatography (MRCP); Materials and Methods: In all patients with suspected choledocholithiasis LUS was performed during laparoscopic cholecystectomy to evaluate biliary stones. According to availability, part of the patients had pre-operative MRCP. Data for diagnostic accuracy and main outcomes were collected prospectively and analyzed retrospectively; Results: Choledocholithiasis was detected in 178 of 297 patients by LUS (59.93%) and in 39 of 87 patients by MRCP (44.8%), p = 0.041. LUS yielded a sensitivity of 99.4%, a specificity of 94.3%, a positive predictive value of 96.1% and a negative predictive value of 99.1%. However, pre-operative MRCP had a sensitivity of 61.7%, a specificity of 92.3%, a positive predictive value of 94.9% and a negative predictive value of 51.1%. Moreover, of the 47 patients with no choledocholithiasis byMRCP, in 23 cases it was later detected by LUS (a false negative MRCP finding-38.3%), p <0.001. Median duration of hospitalization was significantly shorter in patients evaluated without pre-operative MRCP-8 days (interquartile range - IQR 11-6) vs. 11 days (IQR 14-9), p = 0.001; Conclusions: LUS may reduce the role of pre-operative MRCP and can become a rational alternative to MRCP as a primary imaging technique for the detection of choledocholithiasis.
    Original languageEnglish
    Article number246
    JournalMedicina (Lithuania)
    Volume56
    Issue number5
    DOIs
    Publication statusPublished - 20 May 2020

    Keywords

    • Choledocholithiasis
    • Laparoscopic ultrasonography
    • Magnetic resonance cholangio-pancreatography

    Field of Science

    • 3.2 Clinical medicine

    Publication Type

    • 1.1. Scientific article indexed in Web of Science and/or Scopus database

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