One patient had stones larger than 20 mm. The average size of patients bile duct stones was 14 mm. The main indications for performing LBPDs were the presence of stones ≥ 15mm, found in 11 out of the 20 patients 55%, and disproportion between stone size and the papillary orifice, found in 12 patients 60%. Three patients 15% presented both indications. Fourteen patients 70% had ESTs related to earlier ERCPs. For these patients LBPDs were performed in a separate session.
En cuanto al tipo de procedimiento, 14 pacientes 70% tenían esfinterotomía EST de una CPRE previa, a los cuales se les realizó la DPBG en una diferente sesión.