None listed
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: -pathologically-proven adenocarcinoma below 8 cm from the anal verge -mrTRG 1 (radiologically complete remission) or mrTRG 2 (radiologically near-complete remission, only remained fibrosis) after Preoperative chemoradiotherapy and confirmed by multi-disciplinary team or central adjudification. -more than 20 years-old and below 80 years-old -Good performance status (ECOG performance status 2 or less) -agreed with this study
Exclusion criteria
Exclusion criteria: -pathologically-proven adenocarcinoma above 8 cm from the anal verge -microperforated tumor before preoperative chemoradiotherapy -previous history of radiotherapy -presence of distant metastasis, other malignancies, or synchronous colorectal cancer -history of treatment for other malignancies -included other study related to surgical method -pregnancy or feeding
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Postoperative complication rate | — |
Secondary
| Measure | Time frame |
|---|---|
| recurrence rate and survival rate; quality of life including defecatory function;Accuracy of mrTRG (tumor regression) comapred with pathologic TRG;Analysis of effectiveness between local excision and total mesorectal excision | — |
Countries
Korea, Republic of
Contacts
Asan Medical Center