Methods: 8 cases were diagnosed with barium meal by X-ray therapy before operation, by dilating gradually single balloon to double balloon.

方法：本组8例病人，术前经X线钡餐造影检查确诊，用从单球囊到双球囊逐渐扩张的方法连续多次扩张。

youdao

I have had all the various courses of treatment dilatation, balloon dilatation, multiple endoscopies, Heller myotomy 8 years ago.

我有所有的治疗扩张，球囊扩张，多内窥镜各种课程，Heller术8年前。

youdao

It is compressed, along with a balloon, into an 8 millimeter catheter that is threaded up from an incision in the groin into the heart.

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