贲门失弛缓症患者术后远期食管功能分析

目的 探讨贲门失弛缓症患者改良Heller术后远期食管运动功能变化的特点.方法 1998年至2004年,首都医科大学附属北京同仁医院胸外科随访经腹改良Heller术治疗贲门失弛缓症患者72例,随访期3～10年.对其症状、食管动力学和食管腔内24 h的pH值等进行记录.结果 食管下括约肌切开侧压力由术前(44±12)mm Hg降至(10±5)mm Hg,松弛率由49%±20%升至84%±15%,差异有统计学意义(P<0.05).有进食梗阻感的24例患者中,11例食管下括约肌两个方向压力高于正常,松弛功能不良;7例3个方向压力高于正常,松弛功能不良.全组患者吞咽后体部全部表现为同步收缩及无传导收缩,缺乏推进性蠕动.结论 成功的改良Heller术后远期食管动力学功能特点为:①食管下括约肌的静息压力至少一个方向压力低于正常,至少一个方向压力高于正常.②食管下括约肌在吞咽时食管后壁仍弛缓障碍,不能充分松弛.术后进食有梗阻感者,表现为2～3个方向松弛不良.③吞咽时食管体均为同步收缩波,无正常的蠕动波可见,食物靠重力作用通过食管.

Long-term results of esophageal motor dysmotility after Heller's myotmy for achalasia

Objective To investigate the long-term characteristics of both clinical manifestation and esophageal motor disturbance in achalasia patients after Heller's myotmy. Methods After 3 to 10 years' follow-up, clinical manifestation, esophageal motor function and 24-hour continuous esophageal pH monitoring in 72 post-operative cases of achalasia were recorded. Results The mean LES pressure decreased from 44 ± 12 mm Hg to 10 ±5 mm Hg , and the rate of L ES relaxation rised from 49% ±20% to 84% ±15% (paired t test, P<0.05). Of 24 cases with choking feeling, 11 had the high LES pressure and dysfunction in two directions and 7 in three. During swallowing, incomplete lower esophageal sphincter relaxation and aperistalsis were detected in all patients. Conclusions The long-term characteristics of esophageal function following successfully surgical treatment to patients with Achalasia are: