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Ann Geriatr Med Res > Volume 19(3); 2015 > Article
Journal of the Korean Geriatrics Society 2015;19(3):165-175.
DOI: https://doi.org/10.4235/jkgs.2015.19.3.165    Published online September 30, 2015.
Risk Factors and Efficacy of Adjuvant Therapy After Surgery of Elderly Colon Cancer Patients 70 Years of Age or Older
Song Ee Park, Joo Young Ha, Sung Jae Cha, Jung Soon Jang, In Gyu Hwang
1Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea. oncology@cau.ac.kr
2Department of General Surgery, Chung-Ang University College of Medicine, Seoul, Korea.
70세 이상의 노인 대장암 환자의 수술 후 보조요법의 위험 인자와 효과
박송이1, 하주영1, 차성재2, 장정순1, 황인규1
중앙대학교 의과대학 내과학교실1, 외과학교실2
Abstract
BACKGROUND
Colon cancer affects largely elderly populations. Elderly patients treated with adjuvant chemotherapy is lower than younger patients in colon cancer. We aim to evaluate the survival and prognostic factors in accordance with adjuvant chemotherapy in elderly colon cancer patients undergoing curative resection.
METHODS
We retrospectively reviewed 86 patients 70 years of age or older with stage II, III colon cancer who were underwent surgical resection between 2005 and 2013 at single-center. We examined demographic factors, comorbidities at the time of diagnosis, factors associated with colon cancer, and factors associated with treatment, and analyzed associations survival and these factors divided into adjuvant chemotherapy group (chemotherapy group) and the conservative treatment group (observation group).
RESULTS
Among 86 patients 70 years of age or older, 58 patients (67.4%) administered adjuvant chemotherapy and 28 patients (32%) underwent conservative treatment. There are significant differences in respect to the age of 75 in order to select conservative treatment or adjuvant chemotherapy for patients with surgery (p=0.008). There was no significant difference of median overall survival between both groups (chemotherapy group versus observation group: 20 months vs. 24 months, p=0.000). Poor ECOG PS score was independent prognostic factor for overall survival (95% confidential interval 0.016-0.205; hazard ratio, 0.58; p<0.001).
CONCLUSION
Adjuvant chemotherapy did not affect the overall survival in stage II, III elderly colon cancer after surgical resection. There was the tendency to determine whether undergoing adjuvant chemotherapy according to chronologic age. It is thought to be necessary to perform a comprehensive geriatric assessment for decision of adjuvant chemotherapy in elderly patients.
Key Words: Colon cancer, Adjuvant chemotherapy, 5-fluorouracil, Oxaliplatin
초 록
연구배경: 대장암은 연령이 증가할수록 유병률이 높아지지만, 고령 환자에서 젊은 환자들보다 보조적 항암화학요법의 시행 비율이 낮다. 본 연구는 근치적 절제술을 받은 고령의 대장암 환자에서 보조항암화학요법 시행 유무에 따른 생존율 및 예후인자를 평가하고자 한다.
방법: 2005년부터 2013년까지 중앙대학교 병원에서 2, 3기 대장암을 진단 받아, 수술적 치료를 시행한 70 세 이상의 환자 86명을 대상으로 하였다. 인구학적 인자, 진단 시의 동반질환, 대장암과 관련된 인자, 치료와 관련된 인자를 조사하였고, 이에 대해 보조항암화학요법 치료 군(항암화학요법군)과 보존적 치료 군(관찰군)으로 나누어 비교 분석하였다.
결과: 총 86명의 70세 이상 대장암환자에서 항암화학요법군은 58명(67.4%), 관찰군은 28(32.6%)이었다. 항암화학요법군과 관찰군을 선택하는데 있어서 75세를 기준으로 유의한 차이를 보였다(p=0.008). 생존기간의 중앙값은 관찰군에서는 24개월이었고, 항암화학요법군에서는 20개월로 유의한 차이는 없었으며(p=0.280), ECOG PS 점수가 낮은 경우 생존율에 있어 통계학적으로 유의한 예후인자였다(95% Confidential Interval 0.016-0.205, HR=0.58, p&lt;0.001).
결론: 고령의 2, 3기 대장암 환자에서 수술적 치료 후 시행한 보조항암화학요법이 생존율의 유의한 향상을 보이지는 않았다. 고령의 대장암 환자에서는 포괄적인 노인평가를 통해 보조항암화학요법 시행여부를 결정하는 것이 필요할 것으로 생각된다.
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