Peroral endoscopic myotomy in children with achalasia: A review of the literature

Table 2 Characteristics of studies investigating peroral endoscopic myotomy

Ref.	Year	Country	n	Population	Mean pre-POEM Eckardt score	Mean post-POEM Eckardt score
Bapaye et al[41]	2023	India	1	Children	NR	NR
Bi et al[28]	2023	China	48	Children	8	1.1
Caldaro et al[7]	2015	Italy	9	Children	7	0
Chen et al[50]	2014	China	27	Children	8.3	0.7
Choné et al[38]	2019	France	117	Children	7.5	0.9
Familiari et al[29]	2013	Italy	3	Children	5.3	0
Filser et al[85]	2015	Germany	1	Children	8	1
Hsu et al[5]	2023	Taiwan	10	Children	5.7	1.1
Kethman et al[23]	2017	United States	10	Children	7	2.4
Korrapati et al[99]	2018	India	15	Children	7	1
Li et al[87]	2014	China	9	Children	7	0.8
Liu et al[34]	2019	China	130	Children	7.4	0.7
Luvsandagva et al[53]	2024	Mongolia	12	Children	7	1
Mangiola et al[88]	2018	Italy	26	Children	7.2	0.3
Miao et al[33]	2017	China	21	Children	7.18	0.75
Nabi et al[75]	2017	India	502	Children & adults	7.1	1.1
Nabi et al[42]	2018	India	10	Children	6.7	0.3
Nabi et al[68]	2019	India	44	Children	6.86	1.03
Nabi et al[16]	2022	India	69	Children	7	1
Nabi et al[76]	2019	India	17	Children	6.88	NR
Nishimoto et al[86]	2018	Japan	13	Children	7.0	1.1
Petrosyan et al[4]	2016	United States	33	Children	9.7	0.9
Petrosyan et al[32]	2022	United States	37	Children	6.73	0.6
Peng et al[43]	2022	China	24	Children	7.67	0.67
Pop et al[24]	2022	Romania	7	Children	6.5	NR
Ramchandani et al[47]	2016	India	220	Children & adults	7.2	1.18
Ren et al[69]	2012	China	119	Children & adults	NR	NR
Rizzo et al[14]	2020	Europe	1	Children	12	0
Saez et al[89]	2020	Chile	5	Children	10	0.5
Samarakkody et al[90]	2022	New Zealand	4	Children	5.5	0
Samejima et al[54]	2023	Japan	10	Children	6.4	0.5
Shiwaku et al[48]	2016	Japan	100	Children & adults	5.9	0.8
Shiwaku et al[49]	2019	Japan	1300	Children & adults	6.1	1.1
Smirnov et al[91]	2018	Russia	1	Children	7	1
Stavropoulos et al[92]	2017	United States	10	Children	7.9	0.4
Tan et al[93]	2016	China	12	Children	6.9	0.7
Tang et al[51]	2015	China	5	Children	7.5	0.7
van Lennep et al[18]	2019	Netherlands	68	Children	NR	NR
Wood et al[52]	2020	United States	21	Children	7	1
Yamashita et al[94]	2016	Japan	1	Children	7	0
Yamashita et al[95]	2018	Japan	218	Children & adults	NR	NR
Yeung et al[96]	2017	China	1	Children	9	0
Zhang et al[67]	2016	China	1679	Children & adults	NR	NR

NR: Not reported.