Failure Factors to Reach the Blind End Using a Short-Type Single-Balloon Enteroscope for ERCP with Roux-en-Y Reconstruction: A Multicenter Retrospective Study

Abstract EN

Background.

Failure factors in reaching the blind end (papillae of Vater, bilioenteric anastomosis) during short-type single-balloon enteroscope-assisted endoscopic retrograde cholangiopancreatography (sSBE-assisted ERCP) in patients with Roux-en-Y (R-Y) reconstruction remain to be evaluated.

Aims.

We investigated the failure factors in such patients.

Methods.

We retrospectively studied 253 initial sessions of sSBE-assisted ERCP at three endoscopy centers from April 2008 through September 2017, examining failure factors and complications associated with scope insertion in patients with R-Y reconstruction.

Results.

R-Y reconstruction was performed in 157 patients (with gastrectomy: 122 patients; without gastrectomy plus bilioenteric anastomosis: 35 patients).

R-Y without gastrectomy (p=0.001; odds ratio (OR), 5.73; 95% confidence interval (CI), 2.07 to 16.01) and the presence of peritoneal dissemination (p=0.021; OR, 4.71; 95% CI, 1.27 to 17.54) were significant failure factors.

Insufficient sSBE length was the cause of failure in 17 (11%) of the 157 patients, and 13 (76%) of the 17 patients were with R-Y without gastrectomy.

In cases of insufficient short-type length, using a long-type SBE significantly increased the success rate (p=0.002).

Gastrointestinal stenosis was a significant failure factor (p=0.011) in patients with peritoneal dissemination.

Perforation occurred in 2 patients who responded to conservative treatment.

Conclusions.

Failure factors during sSBE-assisted ERCP were R-Y without gastrectomy and the presence of peritoneal dissemination.