引线引导气囊水压扩张器为矫治良性胃出口梗阻提供了一项可避免手术的疗法,尤其对高危患者。但此疗法须在透视下进行,且由于难以将引线及扩张器通过狭窄处,故有26%的患者治疗失败。作者报道一项内镜治疗不需引线的新方法。病人和方法治疗通常在门诊病人镜检时进行。治疗设备有1条内装有导丝的聚乙烯导管(长180cm),靠近导管末端有一个长2cm的气囊,一只10ml注射器用以注水扩张气囊。扩张压由连在导管上的压力表监测。管径可扩大到8～15mm的气囊管经2.8mm或更大的内镜活检孔插入,并定位于胃出口狭窄处,然后注水扩张气囊,保持60sec后,将气囊抽回到胃腔,并使其瘪软。按上法反复扩张直至狭窄口被 Lead-guided balloon dilator provides a surgery-avoidable therapy for correcting benign gastric outlet obstruction, especially in high-risk patients. However, this treatment must be performed under fluoroscopy, and treatment of 26% of patients fails because it is difficult to pass leads and dilators through the stenosis. The authors report a new method of endoscopic treatment without leads. Patient and methodological treatments are usually performed at outpatient microscopy. The treatment equipment includes a polyethylene catheter (180 cm long) with a guidewire and a 2 cm long balloon near the end of the catheter. A 10 ml syringe is used to inflate the balloon. Dilatation pressure is monitored by a pressure gauge attached to the catheter. The balloon tube, which can be expanded to 8-15 mm in diameter, is inserted through an endoscopic biopsy port of 2.8 mm or greater and positioned at the narrowing of the gastric outlet and then filled with water to expand the balloon, which is pumped for 60 sec to withdraw the balloon to the gastric cavity and To make it shriveled. According to the law repeated expansion until the narrow mouth was