Primary outcome
death

Successful treatment was achieved in 28 /38 patients (74 %, 95 %CI 57 %–87 %). In 10 patients, EVT failed (26 %, 95 %CI 13 %–43 %), owing to AEs (n = 2), death during (but not due to) EVT (n = 1), and unachieved defect closure (n = 7). The patients with unachieved defect closure underwent additional surgery after a median of 3 (IQR 2–4) EVT-related endoscopies. More details on the patients with unsuccessful EVT are described in
