Full-thickness excision using transanal endoscopic microsurgery for treatment of rectal neuroendocrine tumors

Table 1 Patient and tumor characteristics

	Total (n = 59)	Purpose of TEM		P value
		Primary excision (n = 38)	Completion surgery(n = 21)
Demographics
Male/female (n)	32/27	21/17	11/10	NS
Age (yr)1	55 (31-70)	47 (31-68)	53 (35-70)	NS
Tumor
Size of tumor (cm)	0.96 ± 0.21	1.01 ± 0.21	0.89 ± 0.19	0.04
Location (A/P)	24/35	15/23	9/12	NS
Distance from AV (cm)	8.4 ± 1.4	8.2 ± 1.3	8.9 ± 1.4	NS
Central umbilication (yes/no)	6/53	4/34	2/19	NS

¹Values are median (range). TEM: Transanal endoscopic microsurgery; A: Anterior wall; P: Posterior wall; AV: Anal verge; NS: Not significant.