Combination therapy based on SpyGlass-guided electrohydraulic lithotripsy through cholecystoduodenostomy by lumen-apposing metal stent (SLAMS) for Mirizzi syndrome.

Abstract

Mirizzi syndrome is a rare complication of chronic gallstone disease characterised by the compression of the common bile duct due to an impacted lithiasis in the infundibulum of the gallbladder or cystic duct. In this case study, we discuss an 85-yearold patient who presented with Mirizzi syndrome associated with septic shock. She was not eligible for cholecystectomy due to her advanced age and frailty, requiring a less invasive alternative. Gallbladder drainage was initiated by endoscopic ultrasoundguided cholecystoduodenostomy with a lumen-apposing metal stent (LAMS). Utilising this bulbo-cholecystic stent, SpyGlassguided electrohydraulic lithotripsy (SGEHL) was then performed, resulting in successful extraction of multiple bile stones, including a 20 mm lithiasis that was lodged in the cystic infundibulum. Subsequently, serum bilirubin levels and inflammatory markers were significantly reduced, consistent with resolution of Mirizzi syndrome. The combination of SGEHL and LAMS, designated as SLAMS, represents a novel, minimally invasive intervention for this potentially life-threatening disease.