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Table 2 Treatment outcomes of the ESD before propensity score matching

From: Splash M-knife versus Flush Knife BT in the technical outcomes of endoscopic submucosal dissection for early gastric cancer: a propensity score matching analysis

  Total n = 149 ESD-M n = 73 ESD-F n = 76 p value
Usage rate of hemostatic forceps 75 (50.3%) 10 (13.7%) 65 (85.5%) < 0.001* ‡
 Expert 28/70 (40.0%) 9/47 (19.1%) 19/23 (82.6%) < 0.001* ‡
 Trainee 47/79 (59.5%) 1/26 (3.8%) 46/53 (86.8%) < 0.001* ‡
Procedure time(min)     
 Mean ± SD 80.1 ± 51.1 83.8 ± 49.7 76.7 ± 52.4 0.4
 Median(range) 70 (7–410) 74.0 (7–252) 69.5 (18–410) 0.3§
En bloc resection 149 (100%) 73 (100%) 76 (100%) 1
Complete resection 145 (97.3%) 70 (95.9%) 75 (98.7%) 0.36
Perforation 1 (0.7%) 0 (0%) 1 (1.3%) 1
Post-procedure bleeding 9 (6.0%) 4 (5.5%) 5 (6.6%) 1
  1. ESD endoscopic submucosal dissection, ESD-M endoscopic submucosal dissection with Splash M-knife, ESD-F endoscopic submucosal dissection with Flush Knife BT, SD standard deviation
  2. p value was calculated using Fisher’s exact test for categorical data
  3. p value was calculated using the t test and the Mann-Whitney U test § for continuous data
  4. *significant value