Robotic transanal total mesorectal excision: Is the future now?

Table 2 Demographic and preoperative data, n (%)

Ref.	n	Male/female	Age (yr)	BMI (kg/m2)	Tumor DAV (cm)	Clinical stage (I/II/III/IV)	Neoadjuvant treatment	Type
Verheijen et al[26], 2014	1	0/1 (100)	48	23.6	8	0/0/1/0	1 (100)	CRT
Gómez Ruiz et al[29], 2015	5	4 (80)/1 (20)	57 ± 13.91	25.8 ± 2.71	5 (4-6)2	1/0/4/0	4 (80)	CRT
Atallah et al[30], 2015	4	3 (75)/1 (25)	44 (26-59)2	29 (21-38)2		1/0/3/0	3 (75)	CRT
Atallah et al[31], 2015	1	1 (100)/0	66	31.6	< 0.43	1/0/0/0	0
Huscher et al[32], 2015	7	3 (42.9)/4 (57.1)	63.2 ± 9.71	29.9 ± 6.11	2 (1–6.5)4	5/2/0/0	0
Kuo et al[33], 2017	15	7 (46.7)/8 (53.3)	60.3 (44–75)4	21.97	3.3 (2.0–5.0)4		11 (73.3)	CRT
Hu et al[34], 2020	20	13 (65)/7 (35)	56.3 ± 14.41	23.9 ± 3.41	5.8 ± 2.61	4/4/10/2	12 (60)	CRT 9 (45)RT 3 (15)
Monsellato et al[35], 2019	3	2 (66.6)/1 (33.3)	61 (55–68)2	26 (25–28)2	4.33 (3-6)2	0/0/3/0	3 (100)	CRT
Tan et al[36], 2020	1	1 (100)/0	71	24.08	3	0/0/1/0	1 (100)	CT
Suhardja et al[37], 2020	1	1 (100)/0	67		6	0/0/1/0	1 (100)	CRT
Ye et al[38], 2021	13	9 (69.2)/4 (30.8)	62 (42- 67)5	22.26 (20.90–24.08)5	4.5 (4- 6)5	1/2/10/0	11 (84.6)	CRT

¹mean ± SD.

²Mean value (range).

³Distance from dentate line.

⁴Median (range).

⁵Median (interquartile range).

BMI: Body mass index; CRT: Chemoradiotherapy; CT: Chemotherapy; DAV: Distance form anal verge; RT: Radiotherapy.