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壶腹部引流组或外科肠吻合组。

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

单纯除（后壶腹）和后半规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。