Table 3.

Comparisons between conventional ESD and ESD with TTSPS.

	Conventional ESD	ESD with TTSPS	p value
Median dissection time (min) (range)	90 (30–320)	60 (15–160)	0.015
Median number of incidences of arterial bleeding (range)	3 (0–25)	2 (0–7)	0.015
Median number of local injections (range)	10 (3–51)	8 (1–27)	0.04

ESD: endoscopic submucosal dissection; NS: not significant; and TTSPS: thread-traction method using a sheath of polypectomy snare.