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Effect of peroral endoscopic myotomy in achalasia patients with failure of prior pneumatic dilation: a prospective case-control study.

Abstract：

BACKGROUND AND AIM:To investigate the effectiveness of peroral endoscopic myotomy (POEM) surgery in achalasia patients with failure of prior pneumatic dilation (PD). METHODS:Twenty-one patients with a history of failed PD were prospectively recruited as the case group, and 30 patients with no history of prior treatment for achalasia were included as the control group. Outcome of POEM procedures was evaluated through esophageal manometry, timed barium esophagogram and short form 36 (SF-36) questionnaires, which were performed before surgery, at 5 days after surgery and at the last follow-up, respectively. Relief of patients' symptoms was considered as the primary outcome. Secondary outcomes included lower esophageal sphincter pressure, esophageal emptying, quality of life of the patient, and procedure-related complications. RESULTS:The two groups were matched in terms of age, gender, body mass index, and results of preoperative examinations. For patients with failed PD, it was observed that Eckardt score, lower esophageal sphincter pressure, and height of the barium column were significantly decreased after POEM surgery. Besides, the mean physical component summary and mental component summary of patients at the final follow were significantly higher than those before surgery. Complications that occurred during the surgery included three cases of subcutaneous emphysema (14.3%) and one case of pneumothorax (4.8%). Patients with failed PD were found to have the significantly longer operation time than the control group. There was no significant difference between the two groups in terms of surgical outcome at the final follow-up. CONCLUSIONS:POEM is a promising therapeutic modality for achalasia patients who have failed to respond to PD therapy. Previous dilation procedures might have no obvious influence on the efficacy of POEM surgery.

journal_name

J Gastroenterol Hepatol

journal_title

Journal of gastroenterology and hepatology

authors

Ling T,Guo H,Zou X

doi

10.1111/jgh.12570

subject

Has Abstract

pub_date

2014-08-01 00:00:00

pages

1609-13

issue

eissn

0815-9319

issn

1440-1746

journal_volume

pub_type

杂志文章

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Effect of peroral endoscopic myotomy in achalasia patients with failure of prior pneumatic dilation: a prospective case-control study.