A Review of Peroral Endoscopic Myotomy for Achalasia
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Abstract
Peroral endoscopic myotomy (POEM) is a form of transluminal endoscopic natural orifice surgery (NOTES) that uses the beginnings of submucosal endoscopy to make the endoscopic equivalent of a surgical myotomy. POEM can be done in most patients who have primary idiopathic achalasia demonstrated manometrically symptomatic. Previous therapies for achalasia, such as pneumatic balloon dilation, botulinum toxin injection, or surgical myotomy, are not contraindications to POEM. Generally, POEM is done in 4 continuous steps: incision in the mucosa, construction of a submucosal tunnel, myotomy and closure of the incision in the mucosa. Endoscopic management has been revolutionary for the treatment of achalasia and other pathological entities, however, it must be performed in specialized centres and by endoscopist surgeons with extensive experience in the subject, to reduce the associated morbidity and mortality.
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