Retrospective Study
Copyright ©The Author(s) 2018.
World J Gastroenterol. Jul 14, 2018; 24(26): 2878-2885
Published online Jul 14, 2018. doi: 10.3748/wjg.v24.i26.2878
Table 1 Baseline characteristics of 311 lesions treated with endoscopic submucosal tunnel dissection n (%)
CategoryESTD (n = 311)
Sex, male/female213/98
Age, yr, mean (range)61.4 ± 8.1 (40-83)
Tumor location
Upper third24 (7.72)
Middle third200 (64.31)
Lower third87 (27.97)
Paris classification
0-I18 (5.79)
0-IIa111 (35.69)
0-IIb94 (30.23)
0-IIc35 (11.25)
0-IIa-IIc50 (16.08)
0-III3 (0.96)
Circumferential level
≤ 1/411 (3.54)
≤ 1/2163 (52.41)
≤ 3/465 (20.90)
≤ 7/841 (13.18)
≤ 131 (9.97)
Table 2 Pre-endoscopic submucosal tunnel dissection and post-endoscopic submucosal tunnel dissection pathology n (%)
PathologyPre-ESTDPost-ESTDPre-ESTD and Post-ESTD coincidence
Inflammation03 (0.96)0
LGIN67 (21.54)43 (13.83)36 (11.57)
HGIN159 (51.13)52 (16.72)37 (11.90)
M174 (23.79)74 (23.79)18 (5.79)
M211 (3.54)47 (15.11)3 (0.96)
M3051 (16.40)0
SM1023 (7.40)0
> SM1018 (5.79)0
Table 3 Endoscopic submucosal tunnel dissection procedure characteristics n (%)
CategoryESTD (n = 311)
Specimen area, cm2, mean ± SD14.1 ± 3.6
Tumor width diameter, cm, mean ± SD3.1 ± 0.6
Tumor length diameter, cm, mean ± SD4.2 ± 0.9
Procedure time, min, mean ± SD102.4 ± 35.3
Dissection speed, mm2/ min, mean ± SD18.6 ± 2.1
En bloc resection308 (99.04)
R0 resection259 (81.28)
Curative resection244 (78.46)
Hospitalization day, d, mean ± SD10.3 ± 2.8
Hospitalization expense, dollars, mean ± SD3766.5 ± 846.5
Table 4 Endoscopic submucosal tunnel dissection-related complications n (%)
CategoryESTD (n = 311)
Post-operative infection30 (9.65)
Bleeding
Intraoperative bleeding20 (6.43)
Postoperative bleeding5 (1.61)
Muscular injury98 (31.51)
Perforation6 (1.93)
Esophageal stricture46 (14.79)
Positive margin
Horizontal margin35 (11.25)
Vertical margin10 (3.22)
Horizontal and vertical margin4 (1.29)
Lymphovascular invasion12 (3.86)