Impact of technology on indications and limitations for transanal surgical removal of rectal neoplasms

Table 2 National cancer registries comparison of transanal excision and standard resection for T1 rectal cancer

Ref.	Year	Follow-up (yr)	n		5 yr local recurrence		5 yr overall survival
			TAE	SR	TAE	SR	TAE	SR
Endreseth et al[37]	2005	2-8.1	35	256	12%	6%1	70%1	80%1
You et al[42]	2007	6.3	601	493	12.5%	6.9%1	77%	82%
Ptok et al[40]	2007	3.5	85	359	5.1%1	1.4%1	84%	92%
2Folkesson et al[38]	2007	NA	256	1141	7%	2%1	87%	93%
Hazard et al[39]	2009	3.9	573	3040	NA	NA	71%	84%
2Saraste et al[41]	2013	NA	448	3246	11.2%	2.9%	81%	92%

¹Statistically significant;

²Mix of T1 and T2 tumors. SR: Standard resection; TAE: Transanal excision; NA: Not available.