Prognostic significance of circumferential resection margin involvement in patients of rectal cancer
- VernacularTitle:直肠癌系膜环周切缘癌浸润规律研究
- Author:
Yongyang YU
;
Cun WANG
;
Zongguang ZHOU
;
Ye SHU
;
Lie YANG
;
Li LI
- Publication Type:Journal Article
- Keywords:
Rectal neoplasms;
Pathology;
Surgical procedures,operative;
Recurrence;
Survival rate
- From:
Chinese Journal of General Surgery
2008;23(4):251-254
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the prognostic value of circumferential resection margin(CRM)status. Methods Specimens of 62 patients with rectal cancer,who underwent total mesorectal excision from December,2001 to June,2002,were examined using whole-mount sections.All patients were followed up for 4～60 months. Results Circumferential resection margin involvement(CRMI)was identified in 12 specimens.while only 4 of them were cancer positive in the resection margin.Analyzed by logistic regression test,the occurrence of CRMI was related to tumor differentiation [ P=0.015,Exp(B)=0.131]and lymph node metastases[P=0.013,Exp(B)=7.488 ],but not tumor distance to anal verge(P=0.246).The difference in local recurrence rate,overall recurrence rate,disease-free survival rate and overall survival rate between CRMI and that of CRM negative,were significant(P=0.002,0.000,0.000 and 0.003,respectively). Conclusions CRMI is an accurate prognostic factor of recurrence and postoperative survival,and its occurrence is mainly determined by biologic characteristics of the tumor.TME could decrease the incidence of CRMI.
