We randomly assigned patients to undergo endoscopic trans ampullary drainage of the pancreatic duct or operative pancreaticojejunostomy.

我们随机将病人分配致内镜下经部胰管或外科胰管空肠吻合。

Singular neurectomy (posterior ampullary nere transsection) and posterior semicircular canal occlusion are the 2 specific techniques used in intractable BPP surgery.

单纯经切除（后经）和后半规管闭塞是应用于难治性良性阵发性位置性眩晕的两种特殊的手治疗技。