Table 2

Procedural characteristics

AuthorYearPts (n)Sigmoid esophagus, n (%)Myotomy orientation, nTotal myotomy length, cm (SD)Esophageal myotomy length, cm (SD)Gastric myotomy length, cm (SD)Procedural time, min (SD or range, IQR)Mean follow-up time, days (SD or range, IQR)
AnteriorPosterior
Chang, et al.201919517 (8.7)NA8.9 (2.2)NANANA288.8 (255.3)
Chen, et al.201445NANA9.6 (1.5)NANANANA
Arshava, et al.201831NANA12.7 (1.4)NANANA288 (NA)
De Pascale, et al.201732NANA11.7 (0.8)8.9 (1.2)3 (0.5)Median 63.4 [32–114]792 (256.5)
DeWitt, et al.202287NA14 (16.1)64 (73.5)9.7 (2.9)NANANA216 (66)
Qiu, et al.2021112NANA11.2 (0.5)NANAMedian 45.5 [35.8–60.3]975 (129)
Guo, et al.201767NANA10.7 (2.3)NANA43.2 (35.7)40.1 (2.8)
Karyampudi, et al.202050NA10 (20)40 (80)11.7 (3.7)7.7 (3.1)2.8 (0.5)Median 38 [30.7–46.2]NA
Liu, et al. 1201913916 (11.5)NA10.6 (1.8)8.5 (1.8)2.1 (0.4)Median 50 [36–76]1260 (68)
Liu, et al. 2201927533 (12)NA10.2 (1.8)8.1 (1.2)2.1 (0.3)Median 50 [36–70]1260 (68)
Khashab, et al. 12020716 (13.3)71 (100)0 (0)10.1 (0.2)7.1 (0.2)2.9 (0.2)Median 59 [46–100]NA
Khashab, et al. 22020779 (16.0)0 (0)77 (100)10 (0.2)7.1 (0.2)2.9 (0.2)Median 67 [43–109]NA
Yang, et al.201552NANA13.1 (2.4)10.2 (1.8)3.1 (0.4)Median 90.6 [32–214]30 (NA)
Sanaka, et al. 1202093NANA9 (0.3)5 (0.4)3.9 (0.2)Median 98 [74–114]68 (78.3)
Sanaka, et al. 2202055NANA9.5 (0.5)5.1 (0.2)4 (0.1)Median 90 [67.5–110]Median 71 [67–82]
Raja, et al.20181520 (0)NA9 (0.3)5 (0.4)3.9 (0.2)Median 96 [77–114]NA
Nast, et al.2018114NANA10.9 (3.6)NANAMedian 106.8 [32.7]NA
Hu, et al.20143232 (100)0 (0)32 (100)10.3 (1.7)8 (1.4)2.6 (0.7)Median 63.7 [22–130]900 (150)
Dacha, et al.2018625 (8)0 (0)62 (100)7.5 (0.8)NANA77,6 (27.3)365 (NA)
Teh, et al.20215814 (24.1)46 (79.3)12 (20.7)11.8 (2.4)NANA137,3 (54.4)1095 (NA)
Evensen, et al.2021509 (18.3)50 (100)0 (0)11.5 (0.6)NANAMedian 153 [130–185]365 (NA)
Ichkhanian, et al. 1202054NA54 (100)0 (0)10.8 (2.3)7.4 (2.8)3 (1.3)Median 63 [49–101]730 (207)
Ichkhanian, et al. 2202057NA0 (0)57 (100)10.4 (2.3)7.1 (2.4)2.8 (2.1)Median 64 [46–107]730 (156)
Mondragòn, et al.2019455 (11.1)36 (80)9 (20)13 (3.5)NANAMedian 54 [37–77]365 (NA)
Xu, et al. 1202038NANA10.9 (2)NANANANA
Xu, et al. 2202040NANA11 (2.5)NANANANA
Wang, et al. 12022579NANA7.1 (1.9)5.1 (2.1)2 (0.7)Median 43.5 [17–180]715.3 (427.5)
Wang, et al. 22022123NANA7.1 (4.1)5.3 (4.1)1.9 (0.6)Median 54.6 [22–170]773.1 (472.5)
Farias, et al.2019310 (0)0 (0)31 (100)11.3 (1.2)7.7 (1.2)3.7 (0.7)99.2 (33.3)365
Tang, et al.201795NANA9.9 (3.6)6.9 (3)2.9 (1.1)59.8 (24.2)767.1 (NA)
Werner, et al.2019112NANA12.5 (3)NANANANA
AuthorYearPts (n)Sigmoid esophagus, n (%)Myotomy orientation, nTotal myotomy length, cm (SD)Esophageal myotomy length, cm (SD)Gastric myotomy length, cm (SD)Procedural time, min (SD or range, IQR)Mean follow-up time, days (SD or range, IQR)
AnteriorPosterior
Chang, et al.201919517 (8.7)NA8.9 (2.2)NANANA288.8 (255.3)
Chen, et al.201445NANA9.6 (1.5)NANANANA
Arshava, et al.201831NANA12.7 (1.4)NANANA288 (NA)
De Pascale, et al.201732NANA11.7 (0.8)8.9 (1.2)3 (0.5)Median 63.4 [32–114]792 (256.5)
DeWitt, et al.202287NA14 (16.1)64 (73.5)9.7 (2.9)NANANA216 (66)
Qiu, et al.2021112NANA11.2 (0.5)NANAMedian 45.5 [35.8–60.3]975 (129)
Guo, et al.201767NANA10.7 (2.3)NANA43.2 (35.7)40.1 (2.8)
Karyampudi, et al.202050NA10 (20)40 (80)11.7 (3.7)7.7 (3.1)2.8 (0.5)Median 38 [30.7–46.2]NA
Liu, et al. 1201913916 (11.5)NA10.6 (1.8)8.5 (1.8)2.1 (0.4)Median 50 [36–76]1260 (68)
Liu, et al. 2201927533 (12)NA10.2 (1.8)8.1 (1.2)2.1 (0.3)Median 50 [36–70]1260 (68)
Khashab, et al. 12020716 (13.3)71 (100)0 (0)10.1 (0.2)7.1 (0.2)2.9 (0.2)Median 59 [46–100]NA
Khashab, et al. 22020779 (16.0)0 (0)77 (100)10 (0.2)7.1 (0.2)2.9 (0.2)Median 67 [43–109]NA
Yang, et al.201552NANA13.1 (2.4)10.2 (1.8)3.1 (0.4)Median 90.6 [32–214]30 (NA)
Sanaka, et al. 1202093NANA9 (0.3)5 (0.4)3.9 (0.2)Median 98 [74–114]68 (78.3)
Sanaka, et al. 2202055NANA9.5 (0.5)5.1 (0.2)4 (0.1)Median 90 [67.5–110]Median 71 [67–82]
Raja, et al.20181520 (0)NA9 (0.3)5 (0.4)3.9 (0.2)Median 96 [77–114]NA
Nast, et al.2018114NANA10.9 (3.6)NANAMedian 106.8 [32.7]NA
Hu, et al.20143232 (100)0 (0)32 (100)10.3 (1.7)8 (1.4)2.6 (0.7)Median 63.7 [22–130]900 (150)
Dacha, et al.2018625 (8)0 (0)62 (100)7.5 (0.8)NANA77,6 (27.3)365 (NA)
Teh, et al.20215814 (24.1)46 (79.3)12 (20.7)11.8 (2.4)NANA137,3 (54.4)1095 (NA)
Evensen, et al.2021509 (18.3)50 (100)0 (0)11.5 (0.6)NANAMedian 153 [130–185]365 (NA)
Ichkhanian, et al. 1202054NA54 (100)0 (0)10.8 (2.3)7.4 (2.8)3 (1.3)Median 63 [49–101]730 (207)
Ichkhanian, et al. 2202057NA0 (0)57 (100)10.4 (2.3)7.1 (2.4)2.8 (2.1)Median 64 [46–107]730 (156)
Mondragòn, et al.2019455 (11.1)36 (80)9 (20)13 (3.5)NANAMedian 54 [37–77]365 (NA)
Xu, et al. 1202038NANA10.9 (2)NANANANA
Xu, et al. 2202040NANA11 (2.5)NANANANA
Wang, et al. 12022579NANA7.1 (1.9)5.1 (2.1)2 (0.7)Median 43.5 [17–180]715.3 (427.5)
Wang, et al. 22022123NANA7.1 (4.1)5.3 (4.1)1.9 (0.6)Median 54.6 [22–170]773.1 (472.5)
Farias, et al.2019310 (0)0 (0)31 (100)11.3 (1.2)7.7 (1.2)3.7 (0.7)99.2 (33.3)365
Tang, et al.201795NANA9.9 (3.6)6.9 (3)2.9 (1.1)59.8 (24.2)767.1 (NA)
Werner, et al.2019112NANA12.5 (3)NANANANA

SD, standard deviation; IQR, interquartile range; NA, not available.

Table 2

Procedural characteristics

AuthorYearPts (n)Sigmoid esophagus, n (%)Myotomy orientation, nTotal myotomy length, cm (SD)Esophageal myotomy length, cm (SD)Gastric myotomy length, cm (SD)Procedural time, min (SD or range, IQR)Mean follow-up time, days (SD or range, IQR)
AnteriorPosterior
Chang, et al.201919517 (8.7)NA8.9 (2.2)NANANA288.8 (255.3)
Chen, et al.201445NANA9.6 (1.5)NANANANA
Arshava, et al.201831NANA12.7 (1.4)NANANA288 (NA)
De Pascale, et al.201732NANA11.7 (0.8)8.9 (1.2)3 (0.5)Median 63.4 [32–114]792 (256.5)
DeWitt, et al.202287NA14 (16.1)64 (73.5)9.7 (2.9)NANANA216 (66)
Qiu, et al.2021112NANA11.2 (0.5)NANAMedian 45.5 [35.8–60.3]975 (129)
Guo, et al.201767NANA10.7 (2.3)NANA43.2 (35.7)40.1 (2.8)
Karyampudi, et al.202050NA10 (20)40 (80)11.7 (3.7)7.7 (3.1)2.8 (0.5)Median 38 [30.7–46.2]NA
Liu, et al. 1201913916 (11.5)NA10.6 (1.8)8.5 (1.8)2.1 (0.4)Median 50 [36–76]1260 (68)
Liu, et al. 2201927533 (12)NA10.2 (1.8)8.1 (1.2)2.1 (0.3)Median 50 [36–70]1260 (68)
Khashab, et al. 12020716 (13.3)71 (100)0 (0)10.1 (0.2)7.1 (0.2)2.9 (0.2)Median 59 [46–100]NA
Khashab, et al. 22020779 (16.0)0 (0)77 (100)10 (0.2)7.1 (0.2)2.9 (0.2)Median 67 [43–109]NA
Yang, et al.201552NANA13.1 (2.4)10.2 (1.8)3.1 (0.4)Median 90.6 [32–214]30 (NA)
Sanaka, et al. 1202093NANA9 (0.3)5 (0.4)3.9 (0.2)Median 98 [74–114]68 (78.3)
Sanaka, et al. 2202055NANA9.5 (0.5)5.1 (0.2)4 (0.1)Median 90 [67.5–110]Median 71 [67–82]
Raja, et al.20181520 (0)NA9 (0.3)5 (0.4)3.9 (0.2)Median 96 [77–114]NA
Nast, et al.2018114NANA10.9 (3.6)NANAMedian 106.8 [32.7]NA
Hu, et al.20143232 (100)0 (0)32 (100)10.3 (1.7)8 (1.4)2.6 (0.7)Median 63.7 [22–130]900 (150)
Dacha, et al.2018625 (8)0 (0)62 (100)7.5 (0.8)NANA77,6 (27.3)365 (NA)
Teh, et al.20215814 (24.1)46 (79.3)12 (20.7)11.8 (2.4)NANA137,3 (54.4)1095 (NA)
Evensen, et al.2021509 (18.3)50 (100)0 (0)11.5 (0.6)NANAMedian 153 [130–185]365 (NA)
Ichkhanian, et al. 1202054NA54 (100)0 (0)10.8 (2.3)7.4 (2.8)3 (1.3)Median 63 [49–101]730 (207)
Ichkhanian, et al. 2202057NA0 (0)57 (100)10.4 (2.3)7.1 (2.4)2.8 (2.1)Median 64 [46–107]730 (156)
Mondragòn, et al.2019455 (11.1)36 (80)9 (20)13 (3.5)NANAMedian 54 [37–77]365 (NA)
Xu, et al. 1202038NANA10.9 (2)NANANANA
Xu, et al. 2202040NANA11 (2.5)NANANANA
Wang, et al. 12022579NANA7.1 (1.9)5.1 (2.1)2 (0.7)Median 43.5 [17–180]715.3 (427.5)
Wang, et al. 22022123NANA7.1 (4.1)5.3 (4.1)1.9 (0.6)Median 54.6 [22–170]773.1 (472.5)
Farias, et al.2019310 (0)0 (0)31 (100)11.3 (1.2)7.7 (1.2)3.7 (0.7)99.2 (33.3)365
Tang, et al.201795NANA9.9 (3.6)6.9 (3)2.9 (1.1)59.8 (24.2)767.1 (NA)
Werner, et al.2019112NANA12.5 (3)NANANANA
AuthorYearPts (n)Sigmoid esophagus, n (%)Myotomy orientation, nTotal myotomy length, cm (SD)Esophageal myotomy length, cm (SD)Gastric myotomy length, cm (SD)Procedural time, min (SD or range, IQR)Mean follow-up time, days (SD or range, IQR)
AnteriorPosterior
Chang, et al.201919517 (8.7)NA8.9 (2.2)NANANA288.8 (255.3)
Chen, et al.201445NANA9.6 (1.5)NANANANA
Arshava, et al.201831NANA12.7 (1.4)NANANA288 (NA)
De Pascale, et al.201732NANA11.7 (0.8)8.9 (1.2)3 (0.5)Median 63.4 [32–114]792 (256.5)
DeWitt, et al.202287NA14 (16.1)64 (73.5)9.7 (2.9)NANANA216 (66)
Qiu, et al.2021112NANA11.2 (0.5)NANAMedian 45.5 [35.8–60.3]975 (129)
Guo, et al.201767NANA10.7 (2.3)NANA43.2 (35.7)40.1 (2.8)
Karyampudi, et al.202050NA10 (20)40 (80)11.7 (3.7)7.7 (3.1)2.8 (0.5)Median 38 [30.7–46.2]NA
Liu, et al. 1201913916 (11.5)NA10.6 (1.8)8.5 (1.8)2.1 (0.4)Median 50 [36–76]1260 (68)
Liu, et al. 2201927533 (12)NA10.2 (1.8)8.1 (1.2)2.1 (0.3)Median 50 [36–70]1260 (68)
Khashab, et al. 12020716 (13.3)71 (100)0 (0)10.1 (0.2)7.1 (0.2)2.9 (0.2)Median 59 [46–100]NA
Khashab, et al. 22020779 (16.0)0 (0)77 (100)10 (0.2)7.1 (0.2)2.9 (0.2)Median 67 [43–109]NA
Yang, et al.201552NANA13.1 (2.4)10.2 (1.8)3.1 (0.4)Median 90.6 [32–214]30 (NA)
Sanaka, et al. 1202093NANA9 (0.3)5 (0.4)3.9 (0.2)Median 98 [74–114]68 (78.3)
Sanaka, et al. 2202055NANA9.5 (0.5)5.1 (0.2)4 (0.1)Median 90 [67.5–110]Median 71 [67–82]
Raja, et al.20181520 (0)NA9 (0.3)5 (0.4)3.9 (0.2)Median 96 [77–114]NA
Nast, et al.2018114NANA10.9 (3.6)NANAMedian 106.8 [32.7]NA
Hu, et al.20143232 (100)0 (0)32 (100)10.3 (1.7)8 (1.4)2.6 (0.7)Median 63.7 [22–130]900 (150)
Dacha, et al.2018625 (8)0 (0)62 (100)7.5 (0.8)NANA77,6 (27.3)365 (NA)
Teh, et al.20215814 (24.1)46 (79.3)12 (20.7)11.8 (2.4)NANA137,3 (54.4)1095 (NA)
Evensen, et al.2021509 (18.3)50 (100)0 (0)11.5 (0.6)NANAMedian 153 [130–185]365 (NA)
Ichkhanian, et al. 1202054NA54 (100)0 (0)10.8 (2.3)7.4 (2.8)3 (1.3)Median 63 [49–101]730 (207)
Ichkhanian, et al. 2202057NA0 (0)57 (100)10.4 (2.3)7.1 (2.4)2.8 (2.1)Median 64 [46–107]730 (156)
Mondragòn, et al.2019455 (11.1)36 (80)9 (20)13 (3.5)NANAMedian 54 [37–77]365 (NA)
Xu, et al. 1202038NANA10.9 (2)NANANANA
Xu, et al. 2202040NANA11 (2.5)NANANANA
Wang, et al. 12022579NANA7.1 (1.9)5.1 (2.1)2 (0.7)Median 43.5 [17–180]715.3 (427.5)
Wang, et al. 22022123NANA7.1 (4.1)5.3 (4.1)1.9 (0.6)Median 54.6 [22–170]773.1 (472.5)
Farias, et al.2019310 (0)0 (0)31 (100)11.3 (1.2)7.7 (1.2)3.7 (0.7)99.2 (33.3)365
Tang, et al.201795NANA9.9 (3.6)6.9 (3)2.9 (1.1)59.8 (24.2)767.1 (NA)
Werner, et al.2019112NANA12.5 (3)NANANANA

SD, standard deviation; IQR, interquartile range; NA, not available.

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