Research Article

Procedure Time for Gastric Endoscopic Submucosal Dissection according to Location, considering Both Mucosal Circumferential Incision and Submucosal Dissection

Table 4

Mucosal circumference incision speed and submucosal dissection speed cut (speed per minute) in descending order.

RankMucosal circumference incision speedSubmucosal dissection speed
LocationMedian (mm/min) rangeInterquartile range
LocationMedian (mm2/min)Interquartile range

1919.3 (3.8–39.3)18.310214.6 (47.1–942)174.5
21018.0 (5.9–81.7)10.99204.1 (55.8–653.1)309.3
31115.6 (3.8–95.8)13.711175.1 (34.1–576.9)201.2
4813.9 (3.3–35.2)11.38118.2 (19.3–502.4)114.1
5412.8 (4.2–24.0)8.63116.7 (23.1–440.4)159.4
6312.4 (2.9–34.1)10.75116.0 (15.2–338.2)92.7
7511.5 (2.6–35.5)10.4496.4 (55.9–316.5)61.2
8210.0 (3.1–30.4)12.5693.5 (7.6–506.6)80.1
979.2 (2.5–40.3)8.15792.5 (20.9–474.4)125.9
1068.2 (1.7–26.5)6.6191.1 (12.8–157)97.7
1117.6 (2.9–11.2)6.4266.6 (7.6–141.3)49.2
12124.5 (3.3–6.1)2.21243.5 (12.2–236.4)170.9

p value<0.01<0.01