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

Table 3 Complication rate of transanal minimally invasive surgery and transanal minimally invasive surgery

Complication	TAMIS, n = 44	EMR, n = 53	P value
Any, n (%)	7 (15.9)	17 (32.1)
Hemorrhage, n (%)	0 (0)	10 (18.9)	0.002
Urinary retention, n (%)	6 (13.6)	1 (1.9)	0.026
Postoperative infection, n (%)	1 (2.3)	1 (1.9)	0.894
Reoperation, n (%)1	0 (0)	5 (9.4)	0.036
Resection margin involvement, n	0	3
Postoperative Bleeding, n2	0	1
Perforation, n	0	1

¹Radical resection of rectal cancer for resection margin involvement, endoscopic clip hemostasis for postendoscopic mucosal resection bleeding, intestinal perforation repair for perforation.

²Post-operative bleeding was defined when the following parameters were satisfied: (1) Occurred up to 30 d after transanal minimally invasive surgery/ endoscopic mucosal resection; (2) Hematochezia, melena or dizziness; (3) Required endoscopic hemostasis; and (4) Hemoglobin loss > 2 g/dL. EMR: Endoscopic mucosal resection; TAMIS: Transanal minimally invasive surgery.