Pneumatic dilation (PD) remains an important treat- ment for achalasia (Fig. 1). PD has similar effectiveness compared with surgery (Heller’s myotomy) and is a very cost-effective treatment option. PD causes circumferential stretching of the lower esophageal sphincter (LES) with subsequent controlled tearing of its muscle fibers. PD is done under fluoroscopic guidance by inflating a noncom- pliant polyethylene balloon at the level of the LES. The goal of treatment is symptomatic relief characterized by a postdilation reduction of the Eckardt symptom score to 3 or less. 1 The efficacy of PD ranges from 71% to 90%. 2,3 Predictors of good response include older age, female sex, type 2 achalasia, narrow esophageal caliber, and LES pressure less than 10 mm Hg postdilation.
展开▼
机译：气动扩张（Pd）仍然是贲门刺症的重要治疗（图1）。与手术相比，PD具有类似的有效性（Heller的MyOtomy），是一个非常具有成本效益的治疗选择。 PD导致下食管括约肌（LES）的周向拉伸，随后对其肌肉纤维进行控制的撕裂。通过在LES的水平下使非分解聚乙烯球囊膨胀，在荧光透视引导下进行。治疗的目标是对症状的浮雕，其特征在于，ECCNARDT症状评分的迟交减少到3或更少。 1 PD的疗效范围为71％至90％。 2,3良好反应的预测因子包括较老年，女性性别，2型贲门刺症，狭窄的食道口径，以及低于10 mm Hg延期的低压。
展开▼
