Ling classification applied in the preoperative safety and effectiveness assessment of POEM

2017 
Background and study aims At present, peroral endoscopic myotomy (POEM) has been considered as the recommended treatment for achalasia, as it causes trauma to a smaller area and has fewer short-term serious complications than other treatments. However, due to the different morphology of esophagus, not all the patients with achalasia are eligible to receive POEM surgery. And the purpose of our study was to apply Ling classification, which proser Linghu put forward in 2011, in the preoperative assessment of POEM, expecting to reduce the occurrence rate of complications during or post-POEM.
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