英语语法分析

Endoscopic gastroplasty has been performed in 7 patients with sliding hiatus hernia.

经内镜胃黏膜折叠成形术7例为滑动型疝。

Objective To assess the efficacy of laparoscopic vertical banded gastroplasty (LVBG) for morbid obesity, and to discuss the indications of surgical treatment for morbid obesity.

目的评估腹腔镜垂直捆绑胃成形术（LVBG）的减肥效果并探讨肥胖手术治疗的适应证。