Right-sided colon cancers (RCC) and left-sided colon cancers (LCC) have different epidemiological, physiological, pathological, genetic, and clinical characteristics, which result in differences in the course, prognos...Right-sided colon cancers (RCC) and left-sided colon cancers (LCC) have different epidemiological, physiological, pathological, genetic, and clinical characteristics, which result in differences in the course, prognosis, and outcome of disease. The objective of our study is to compare right-sided colon cancers and left-sided colon cancers regarding clinicopathological and survival characteristics. This is a retrospective study of 664 patients with colon cancer treated at the medical oncology department of Fez over a period from December 2009 to September 2020. Rectosigmoid, descending colon, and splenic flexure tumors were considered left-sided colon cancers, whereas ascending colon tumors were considered right-sided colon cancers. The Kaplan Meier method was used to estimate median survival. The study included 664 patients (female, 47%) having colon cancer with a median age of 60 years (23 - 83). Of the patients, 78.5% (n = 519) had LCC and 19.36 % (n = 128) had RCC. The rate of patients aged ≥ 65 years and the rate of patients with a family history of colon cancer was higher in the LCC patients. The proportion of poorly differentiated adenocarcinomas represented 3%, of which 63% had cancer of the right colon. There was a significantly higher proportion of higher T stage (T3-4: 62% vs 38%) in right sided tumors as compared to left sided tumors. The rate of metastatic patients was 64.1% in the RCC group and 43% in the LCC group. The median follow-up period was 14 months in the RCC group and 19 months in the LCC group with higher median overall survival in the LCC group (32 vs 21 months). We found histopathological differences between right and left sided colon cancer. Tumors on the right colon were found to be more aggressive, as expressed by poorer differentiation, higher T stage associated with a median overall survival better in left colon cancer.展开更多
目的探究保留左结肠动脉或直肠上动脉的腹腔镜左半结肠癌根治术后≥Ⅱ级并发症发生的危险因素,以期早发现,早处理术后并发症,改善预后。方法收集2018年1月至2020年10月于南京大学医学院附属南京鼓楼医院胃肠外科结直肠专业组接受保留肠...目的探究保留左结肠动脉或直肠上动脉的腹腔镜左半结肠癌根治术后≥Ⅱ级并发症发生的危险因素,以期早发现,早处理术后并发症,改善预后。方法收集2018年1月至2020年10月于南京大学医学院附属南京鼓楼医院胃肠外科结直肠专业组接受保留肠系膜下动脉分支血管的腹腔镜左半结肠癌根治术的180例患者的临床资料。采用Clavien-Dindo分级系统对术后并发症进行分级,通过t检验、秩和检验或卡方检验对≥Ⅱ级术后并发症的危险因素进行统计学分析,经多因素Logistic回归分析筛选≥Ⅱ级术后并发症的潜在危险因素,并建立列线图模型。评价模型的区分度,内部验证运用Bootstrap法评价模型的符合度,并绘制校准曲线。采用DCA曲线验证模型的临床获益度。结果共计37例(20.6%)患者发生≥Ⅱ级术后并发症,多因素Logistic回归分析显示“术后3 d CRP≥83.6 mg/L”(OR=3.036,P=0.007),“高龄”(OR=1.038,P=0.058)和“有糖尿病”(OR=2.337,P=0.052)是术后≥Ⅱ级并发症的独立危险因素。以此建立的列线图模型具有良好的区分度和校准度。结论基于3个独立危险因素的列线图模型对保留左结肠动脉或直肠上动脉的腹腔镜左半结肠癌根治术后≥Ⅱ级并发症有较好的预测性能,具备一定的临床推广和参考价值。展开更多
文摘Right-sided colon cancers (RCC) and left-sided colon cancers (LCC) have different epidemiological, physiological, pathological, genetic, and clinical characteristics, which result in differences in the course, prognosis, and outcome of disease. The objective of our study is to compare right-sided colon cancers and left-sided colon cancers regarding clinicopathological and survival characteristics. This is a retrospective study of 664 patients with colon cancer treated at the medical oncology department of Fez over a period from December 2009 to September 2020. Rectosigmoid, descending colon, and splenic flexure tumors were considered left-sided colon cancers, whereas ascending colon tumors were considered right-sided colon cancers. The Kaplan Meier method was used to estimate median survival. The study included 664 patients (female, 47%) having colon cancer with a median age of 60 years (23 - 83). Of the patients, 78.5% (n = 519) had LCC and 19.36 % (n = 128) had RCC. The rate of patients aged ≥ 65 years and the rate of patients with a family history of colon cancer was higher in the LCC patients. The proportion of poorly differentiated adenocarcinomas represented 3%, of which 63% had cancer of the right colon. There was a significantly higher proportion of higher T stage (T3-4: 62% vs 38%) in right sided tumors as compared to left sided tumors. The rate of metastatic patients was 64.1% in the RCC group and 43% in the LCC group. The median follow-up period was 14 months in the RCC group and 19 months in the LCC group with higher median overall survival in the LCC group (32 vs 21 months). We found histopathological differences between right and left sided colon cancer. Tumors on the right colon were found to be more aggressive, as expressed by poorer differentiation, higher T stage associated with a median overall survival better in left colon cancer.
文摘目的探究保留左结肠动脉或直肠上动脉的腹腔镜左半结肠癌根治术后≥Ⅱ级并发症发生的危险因素,以期早发现,早处理术后并发症,改善预后。方法收集2018年1月至2020年10月于南京大学医学院附属南京鼓楼医院胃肠外科结直肠专业组接受保留肠系膜下动脉分支血管的腹腔镜左半结肠癌根治术的180例患者的临床资料。采用Clavien-Dindo分级系统对术后并发症进行分级,通过t检验、秩和检验或卡方检验对≥Ⅱ级术后并发症的危险因素进行统计学分析,经多因素Logistic回归分析筛选≥Ⅱ级术后并发症的潜在危险因素,并建立列线图模型。评价模型的区分度,内部验证运用Bootstrap法评价模型的符合度,并绘制校准曲线。采用DCA曲线验证模型的临床获益度。结果共计37例(20.6%)患者发生≥Ⅱ级术后并发症,多因素Logistic回归分析显示“术后3 d CRP≥83.6 mg/L”(OR=3.036,P=0.007),“高龄”(OR=1.038,P=0.058)和“有糖尿病”(OR=2.337,P=0.052)是术后≥Ⅱ级并发症的独立危险因素。以此建立的列线图模型具有良好的区分度和校准度。结论基于3个独立危险因素的列线图模型对保留左结肠动脉或直肠上动脉的腹腔镜左半结肠癌根治术后≥Ⅱ级并发症有较好的预测性能,具备一定的临床推广和参考价值。
