Transanal natural orifice specimen extraction for laparoscopic anterior resection in rectal cancer

Table 1 Patient demographic data

Patient demographic data	Value
Age (yr)	45.4 ± 3.6
Body mass index	23.1 ± 2.8
Sex (male/female ratio)	12/9
Mean wexner score	3.7 ± 1.6

Wexner Score was obtained in follow-up at 6 mo.

Table 2 Intraoperative information

Intraoperative information	Value
Mean operation time (min)	132 ± 85
Mean intraoperative blood loss( mL)	84 ± 15
Mean tumor diameter (cm)	4.6 ± 1.7
Distance of lesion from anal verge (cm)	8.3 ± 3.5
Protective ileostomy	5 (23.8)
Defecation time after operation (d)	2.5 ± 1.4

Table 3 Patient pathological parameters

Items	Number of cases
Pathological diagnoses
Well differentiated	10
Poorly differentiated	7
Myxoadenocarcinoma	4
Specimen macro-assessment of TME	21 (radical resection)
Circumferential resection margin	21 (Negative)
Postoperative pathology staging (TNM)
T1-4N0M0	7
T1-2N1M0	5
T3-4N1M0	6
T3-4N2M0	3
Lymph nodes harvest (mean)	17.8 ± 4.6
Metastatic lymph nodes (mean)	3.4 ± 1.8

TME: Total mesorectal excision; TNM: Tumor node metastasis

Table 4 Postoperative complications n (%)

Length of hospitalization (d)	6.1 ± 2.7
Postoperative complications
UTI	2 (9.5)
Anastomotic leakage	1 (4.7)
Anastomotic bleeding	0
Incision infection	0
Intestinal obstruction	0
Impotence	1 (4.7)
Fecal incontinence	0
Anal stenosis	0
Total	4 (18.9)

The data of fecal incontinence, impotence, and anal stenosis was obtained at 1-year follow-up. UTI: Urinary tract infection.