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진행된 직장암에서 수술 전 화학 방사선 요법 후 전직장간막절제술의 임상적 고찰: 병리학적 T 병기와 N 병기하강에 따른 임상 결과 분석

Other Titles
 Preoperative Chemoradiation Followed by Total Mesorectal Excision for Locally Advanced Rectal Cancer: Oncologic Outcomes According to Pathologic T and N Stage 
 김남규  ;  백승혁  ;  이강영  ;  손승국  ;  조장환  ;  민진식  ;  성진실  ;  정현철  ;  라선영 
 JOURNAL OF THE KOREAN SURGICAL SOCIETY , Vol.68(3) : 218-223, 2005 
Journal Title
Issue Date
Rectal cancer ; Preoperative chemoradiation ; Total mesorectal excision ; Downstaging
Rectal cancer ; Preoperative chemoradiation ; Total mesorectal excision ; Downstaging
Purpose: Tumor response of patients with locally advanced rectal cancer after chemoradiation showed 60∼70% of tumor volume reduction and T and N downstaging. Curative resection with total mesorectal excision should be followed for good oncologic outcomes. This study was designed to analyze the oncologic outcomes in patients who received preoperative chemoradiation followed by total mesorectal excision for locally advanced rectal cancer according to pathologic T and N stage. Methods: Total 108 patients with locally advanced rectal cancer treated between 1989 and 2000. All patients were analyzed retrospectively and staged as T3, 4 N (⁢) by transrectal ultrasonography and pelvic MRI. All patients received a 5,040 cGy of radiation over 5 weeks and systemic intravenous bolus chemotherapy 5 FU 450 mg/m2 and leucovorin 20 mg/m2 for 5 days was given during first and fifth weeks of radiation treatment, followed four to six weeks later by radical surgery. Results: Among 108 patients there were 74 males and 34 females. Mean age was 54.4 years in male and 52.3 years in female. Mean follow up periods was 41.3 months. Complete follow up was in 96.4% of patients. Curative resection was done in 90 patients (83.3%). The most common type of surgery was low anterior resection in 40 (44.4%) and unresectable patients in 10 (9.3%). Postoperative morbidities were wound infection (n=10, 9.2%), anastomostic leakage (n=2, 1.9%), and anastomotic stricture (n=1, 0.9%). After chemoradiation, tumor stage were as follows: pathologic complete remission was in 7 (6.5%), pT1, T2 N0 (stage I) was in 21 (19.4%), T3N0 (stage II) was in 28 (25.9%) and T3 N (⁢) (stage III) was in 34 (31.5%). The rate of local recurrence was 10.7% in stage II and 20.6% in stage III. Systemic recurrence was 21.4% in stage II and 47.1% in stage III. 5 year survival rate according to T stage was T0 (100%), T1 (100%), T2 (79.5%), T3 (43.7%), T4 (33.3%) (p=0.0088). According to N stage, N (⁣)(72.0%) and N (⁢) (35.7%)(p=0.002). Among T3 patients, 5 year survival rate was N (⁣)(58.2%) vs. N (⁢)(32.0%)(P=0.0228). Conclusion: Preoperative chemoradiation followed by total mesorectal excision downstaged locally advanced rectal cancer and showed high resectability. Clinical outcomes correlated with pathologic T and N downstaging. Patients who did not show pathologic T and N downstaging showed high local and systemic failure and poor prognosis.
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1. College of Medicine (의과대학) > Research Institute (부설연구소) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
Yonsei Authors
Kim, Nam Kyu(김남규) ORCID logo https://orcid.org/0000-0003-0639-5632
Rha, Sun Young(라선영) ORCID logo https://orcid.org/0000-0002-2512-4531
Min, Jin Sik(민진식)
Baik, Seung Hyuk(백승혁) ORCID logo https://orcid.org/0000-0003-4183-2332
Seong, Jin Sil(성진실) ORCID logo https://orcid.org/0000-0003-1794-5951
Sohn, Seung Kook(손승국)
Lee, Kang Young(이강영)
Chung, Hyun Cheol(정현철) ORCID logo https://orcid.org/0000-0002-0920-9471
Cho, Chang Hwan(조장환)
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