Transanal minimally invasive surgery vs endoscopic mucosal resection for rectal benign tumors and rectal carcinoids: A retrospective analysis

Table 2 Operative characteristics and outcome of transanal minimally invasive surgery and transanal minimally invasive surgery

Characteristics	TAMIS, n = 44	EMR, n = 53	P value
Operative time, min	49.95 ± 15.28	21.19 ± 9.49	< 0.001
Blood loss, mL	12.48 ± 8.00	11.45 ± 7.82	0.527
Length of stay, d	3.50 ± 1.87	2.72 ± 1.98	0.065
Resection margins, n (%)			0.109
Negative	44 (100)	50 (94.3)
Positive	0 (0)	3 (5.7)
Fragmentation, n (%)	0 (0)	12 (22.6)	0.001

EMR: Endoscopic mucosal resection; TAMIS: Transanal minimally invasive surgery.