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

Table 2 Treatment outcomes of the ESD before propensity score matching

	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^‡

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
p value was calculated using Fisher’s exact test ^‡for categorical data
p value was calculated using the t test ^¶ and the Mann-Whitney U test ^§ for continuous data
^*significant value

ISSN: 1471-230X