Percutaneous transhepatic cholangioscopy-assisted procedures for the management of postoperative benign bilioenteric anastomotic strictures with or without biliary stones

Figure 5 Kaplan-Meier methods. Results show that in 29 patients with an indwelling percutaneous transhepatic cholangioscopy catheter via the anastomotic stricture that was removed, the cumulative anastomotic patency remained in 74.3%, 69.7%, 59.7%, 49.8%, and 34.8% of patients at 1, 2, 3, 5, and 7 years, respectively. The median patency duration was 69 months, with 95% confidence intervals of 21 to 117 months.