Journal of Neurogastroenterology and Motility : eISSN 2093-0887 / pISSN 2093-0879

Table. 2.

The Reflux/Non-reflux Group Before Peroral Esophageal Myotomy

Variables Reflux group (n = 96) Non-reflux group (n = 34) P-value
Gender (male/female) 46/50 12/22 0.203
Age (yr) 41.70 ± 13.80 45.29 ± 14.70 0.201
BMI (kg/m2) 21.10 (18.59-24.03) 23.00 (20.17-24.12) 0.177
Eckardt scores
Dysphagia
Never, 0 0 (0.0) 0 (0.0)
Occasional, 1 10 (10.4) 2 (5.9)
Daily, 2 31 (32.3) 8 (23.5)
Every meal, 3 55 (57.3) 24 (70.6) 0.166
Chest pain
Never, 0 61 (63.5) 20 (58.8)
Occasional, 1 21 (21.9) 6 (17.6)
Daily, 2 10 (10.4) 4 (11.8)
Every meal, 3 4 (4.2) 4 (11.8) 0.422
Weight loss
No weight loss, 0 59 (61.5) 25 (73.5)
< 5 kg, 1 22 (22.9) 5 (14.7)
5-10 kg, 2 10 (10.4) 4 (11.8)
> 10 kg, 3 5 (5.2) 0 (0.0) 0.211
Total Eckardt scores 5 (4-6) 4 (3-5) < 0.01a
Other symptoms
Heartburn
Absent 52 (54.2) 27 (79.4)
Present 44 (45.8) 7 (20.6) 0.010b
Nausea
Absent 58 (60.4) 24 (70.6)
Present 38 (39.6) 10 (29.4) 0.291
Emesis
Absent 48 (50.0) 20 (58.8)
Present 48 (50.0) 14 (41.2) 0.376
Ructus
Absent 58 (60.4) 31 (91.2)
Present 38 (39.6) 3 (8.8) 0.002a
HRM
LES center (distance from nostrils, cm) 47.00 (44.00-48.95) 44.20 (43.00-46.00) 0.020b
Proximal LES (distance from nostrils, cm) 44.90 ± 3.38 43.45 ± 3.20 0.044b
Length of LES (cm) 3.30 (3.00-4.00) 3.60 (3.10-4.10) 0.311
Length of esophageal (cm) 27.90 (26.00-29.00) 25.80 (24.00-27.35) 0.006a
LESP (mmHg) 38.67 ± 15.86 33.02 ± 9.70 0.023b
IRP (mmHg) 31.00 ± 12.30 29.00 ± 7.60 0.288
Subtypes
Type I 13 (13.5) 2 (5.9)
Type II 82 (85.4) 32 (94.1)
Type III 1 (1.0) 0 (0.0) 0.521

aP < 0.01, bP < 0.05.

BMI, body mass index; HRM, high-resolution manometry; LES, lower esophageal sphincter; LESP, lower esophageal sphincter pressure; IRP, integrated relaxation pressure.

Values are presented as n, mean ± SD, median (interquartile range), or n (%).

J Neurogastroenterol Motil 2021;27:377~389 https://doi.org/10.5056/jnm20041
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