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Retrospective Cohort Study
©The Author(s) 2026.
World J Hepatol. Feb 27, 2026; 18(2): 113464
Published online Feb 27, 2026. doi: 10.4254/wjh.v18.i2.113464
Table 2 Success rate and efficacy of extracorporeal shock wave lithotripsy and laser lithotripsy in patients with difficult bile duct stones

ESWL (n = 387)
LL (n = 71)
P value
CBD clearance368 (95.0)69 (97.2)0.4
Number of sessions of ESWL/LL2.1 ± 1.31.4 ± 0.70.2
Number of ERCP sessions required2.1 ± 0.62.3 ± 0.70.9


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