Darvadstrocel for complex perianal fistulas in Crohn's disease: A systematic review and meta-analysis.

Background: Local injection of darvadstrocel, a suspension of expanded adipose-derived allogenic mesenchymal stem cells, has been used for treatment-refractory perianal fistulas in Crohn's disease (CD).

Objective: This study aimed to investigate efficacy and safety of darvadstrocel for complex perianal fistulas in CD.

Methods: A systematic search was conducted through April 2024 in relevant databases for observational studies evaluating darvadstrocel.

Symptomatic gallstone disease: Recurrence patterns and risk factors for relapse after first admission, the RELAPSTONE study.

Background: Delayed cholecystectomy in patients with symptomatic gallstone disease is associated with recurrence. Limited data on the recurrence patterns and the factors that determine them are available.

Objective: We aimed to determine the pattern of relapse in each symptomatic gallstone disease (acute pancreatitis, cholecystitis, cholangitis, symptomatic choledocholithiasis, and biliary colic) and determine the associated factors.