Procedure Time for Gastric Endoscopic Submucosal Dissection according to Location, considering Both Mucosal Circumferential Incision and Submucosal Dissection
Table 1
Baseline characteristics of gastric tumors.
Characteristics
Value
(%)
Sex (females : males)
80 : 222 (1 : 2.5)
Age, years, median (range)
73 (40–92)
Morphology
Protruded (0-I)
11
(3.7)
Flat (0-II b, 0-II a)
143 (6, 137)
(47.4)
Depressed (0-II a + II c, 0-IIc)
147 (138, 9)
(48.8)
Submucosal tumor
1
(0.3)
Tumor size (mm), median (range)
11 (2–60)
Specimen size (mm), median (range)
34 (14–110)
Histology
Adenoma
36
(11.9)
Differentiated type
247
(81.8)
Mix type (differentiated + undifferentiated type (<20 mm))
12
(4)
Undifferentiated type
5
(1.7)
2
(0.7)
Ulcer or scar
24
(7.9)
Hidden fibrosis
35
(11.6)
Much time to hemostasis
51
(16.9)
Perforation
7
(2.3)
Delayed bleeding
9
(3.0)
: one case was neuroendocrine tumor and another was hyperplastic polyp.
