Skip to main content

Table 4 Subgroup analysis between procedure time and lesion location, position, or size

From: Internal traction method using a spring-and-loop with clip (S–O clip) allows countertraction in gastric endoscopic submucosal dissection

  SLC-ESD
n = 51
C-ESD
n = 51
P value
Lesion location    
 Upper n = 11 n = 9  
Median procedure time, min (IQR) 61.0 (44.5–84.5) 127.0 (107.0–259.0) 0.020
 Middle n = 20 n = 20  
Median procedure time, min (IQR) 40.0 (33.0–89.5) 90.0 (60.8–123) 0.011
 Lower n = 20 n = 22  
Median procedure time, min (IQR) 26.5 (16.8–53.8) 48.0 (28.5–63.5) 0.284
Lesion position    
 Greater curvature n = 13 n = 10  
Median procedure time, min (IQR) 34.0 (28.0–80.0) 70.0 (49.5–119.3) 0.0938
 Outside greater curvature n = 38 n = 41  
Median procedure time, min (IQR) 44.5 (26.0–82.3) 69.0 (47.0–109.0) 0.0252
Lesion size    
 > 20 mm n = 16 n = 16  
Median procedure time, min (IQR) 90 (58.75–118.75) 121 (73.75–224.5) 0.097
 ≤ 20 mm n = 35 n = 35  
Median procedure time, min (IQR) 34 (21.5–54.5) 57 (38.5–91.5)  < 0.001
  1. SLC-ESD spring-and-loop with clip-assisted endoscopic submucosal dissection, C-ESD conventional endoscopic submucosal dissection, SD standard deviation, IQR interquartile range, NA not applicable
  2. P < 0.05