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Background: Recently there has been a growing interest in the laparoscopic management of common bile duct stones with gallbladder in situ (LBDE), which is favoring the expansion of this technique. Our study identified the standardization factors of LBDE and its implementation in the single-stage management of choledocholithiasis. Methods: A retrospective multi-institutional study among 17 centers with proven experience in LBDE was performed. A cross-sectional survey consisting of a semi-structured pretested questionnaire was distributed covering the main aspects on the use of LBDE in the management of choledocholithiasis. Results: A total of 3950 LBDEs were analyzed. The most frequent indication was jaundice (58.8%). LBDEs were performed after failed ERCP in 15.2%. The most common approach used was the transcystic (63.11%). The overall series failure rate of LBDE was 4% and the median rate for each center was 6% (IQR, 4.5-12.5). Median operative time ranged between 60-120 min (70.6%). Overall morbidity rate was 14.6%, with a postoperative bile leak and complications ≥3a rate of 4.5% and 2.5%, respectively. The operative time decreased with experience (P =.03) and length of hospital stay was longer in the presence of a biliary leak (P =.04). Current training of LBDE was defined as poor or very poor by 82.4%. Conclusion: Based on this multicenter survey, LBDE is a safe and effective approach when performed by experienced teams. The generalization of LBDE will be based on developing training programs.

The specimens on which Gasull (1981) based his description of Trochoidea llopisi were restudied. This material was compared with that collected by the authors at the type locality. It turned out that the type material belongs to two species: Trochoidea geyeri (Soós, 1926) and Candidula camporroblensis (Fez, 1944). The lectotype, selected here, belongs to T. geyeri. Therefore, T llopisi has to be considered a junior synonym of T. geyeri.