Table 1.

Indications of Peroral Endoscopic Myotomy for Esophageal Motility Disorders

Diseases	Classifications
Achalasia	Type I-III achalasia
Special achalasia	Sigmoid achalasia
	Achalasia with diverticulum
Recurrent achalasia	Failed prior treatment (LHM, PD, POEM, Botox injection)
Non-achalasia esophageal motility disorders	JHE/nutcracker esophagus
	EGJOO
	DES

DES, diffuse esophageal spasm; EGJOO, esophagogastric junction outflow obstruction; JHE, jackhammer esophagus; LHM, laparoscopic Hellar myotomy; PD, pneumatic dilatation; POEM, peroral endoscopic myotomy.