Peroral endoscopic myotomy: Time to change our opinion regarding the treatment of achalasia?

Table 1 Efficacy of peroral endoscopic myotomy-data from literature (adapted after[27])

Ref.	n	Eckardt score (before/after)	LES pressure (before/after)	Efficacy	Time of follow-up (mo)	Patients with recurrent dysphagia
Inoue et al[13]	17	10/1.3	52.4/19	100%	5	0
von Renteln et al[30]	16	7.8/0.7	27.2/11.8	94%	3	1
Costamagna et al[31]	11	7.1/1.1	45.1/16.9	100%	3	0
Swanstrom et al[32]	18	6/0	45/16.8	94%	6	1
Ren et al[33]	119	-/<3	29.4/13.5	91.7%	10.4	-
Hungness et al[34]	18	7/1	19/9	89%	6	2
Inoue et al[35]	300	6.13/1.33	27.3/13.4	98%	12	5
Chiu et al[36]	16	5.5/0	43.6/29.8	100%	3	0
Lee et al[37]	13	6.4/0.4	30.3/15.3	100%	6.9	0
Minami et al[38]	28	6.7/0.7	71.2/21	100%	16	0
Verlaan et al[39]	10	8/1	20.5/6.8	-	16	-
Stavropoulos et al[40]	66	7.9/0.2	42.5/15.4	96%	13	2
Zhou et al[41]	205	Relief in 199/205	-	97%	8.5	3
Von Renteln et al[42]	70	6.9/1	27.6/8.9	82%	12	9
Teitelbaum et al[43]	41	7/1	22/9	92%	12	-

LES: Lower esophageal sphincter.