Objective: This study aimed to explore the difference of prognosis in oldest-old colon cancer patients between the left-side and right-side hemicolectomy. Methods: A total of 238 oldest-old (≥75 years old) colon cancer patients who received surgical treatment in Gastrointestinal Surgery Department of Beijing Hospital from December 2010 to December 2020 were retrospectively collected. They were divided into right-side hemicolectomy (RCC) group (130 cases) and left-side hemicolectomy (LCC) group (108 cases) by surgical methods. The difference in postoperative short-term complications and long-term prognosis was compared between the two groups, and the related factors of postoperative death was analyzed using multivariate Cox regression model. Results: The age of 238 oldest-old patients with colon cancer ranged from 75 to 93 years old (80.5±3.7). There were 128 males and 110 females. The ages of patients in the LCC group and RCC group were (80.4±3.7) and (80.6±3.7) years old (P=0.699), respectively. There was no significant difference in gender, body mass index (BMI) and co-existing chronic diseases between two groups (P>0.05). The proportion of the duration of surgery exceeding 170 min in the LCC group was significantly higher than that in the RCC group (56.5% vs 43.1%, P=0.039). The incidence of postoperative short-term complications in RCC group was slightly higher than LCC group (P>0.05), and there was no significant difference in overall survival (OS), tumor-specific survival (CSS) and disease-free survival (DFS) between two groups. However, the two groups had different prognostic risk factors, pathological Ⅳ stage (HR=28.970,95%CI:1.768-474.813,P=0.018), intraoperative bleeding (HR=2.297,95%CI:1.351-3.907,P=0.002) and cancer nodules (HR=2.044,95%CI:1.047-3.989,P=0.036) were independent prognostic risk factors in LCC group. Underweight (HR=0.428,95%CI:0.192-0.955,P=0.038), overweight(HR=0.316,95%CI:0.125-0.800,P=0.015),obesity (HR=0.211,95%CI:0.067-0.658,P=0.007), lymph node metastasis (HR=2.682,95%CI:1.497-4.807,P=0.001), tumor nodule (HR=2.507,95%CI:1.301-4.831,P=0.027) and postoperative length of stay of 9 days (HR=1.829,95%CI:1.070-3.128,P=0.006) were independent risk factors for poor prognosis in RCC group. Conclusions: The duration of surgery of oldest-old colon cancer patients in the LCC group was longer than that in the RCC group. However, there was no significant difference in the incidence of postoperative complications between the two groups. High pathological stage, more intraoperative bleeding and cancer nodules were independent prognostic risk factors in the LCC group. Abnormal BMI, lymph node metastasis, cancer nodules and postoperative length of stay were independent risk factors for poor prognosis in the RCC group.
目的： 分析高龄左、右半结肠癌患者术后预后情况及其相关因素。 方法： 回顾性收集2010年12月至2020年12月北京医院胃肠外科接受手术治疗的高龄（≥75岁）结肠癌患者临床病历资料，共238例，通过手术方式分为右半结肠切除术（RCC）组（130例）和左半结肠切除术（LCC）组（108例），比较2组患者的临床资料、术后短期并发症及长期预后差异，采用多因素Cox比例风险回归模型分析2组患者术后死亡的相关因素。 结果： 238例高龄结肠癌患者的年龄为（80.5±3.7）岁（75~93岁）；男128例，女110例。LCC组及RCC组患者年龄分别为（80.4±3.7）和（80.6±3.7）岁（P=0.699），2组患者性别构成、体质指数（BMI）、共存慢性疾病差异均无统计学意义（均P>0.05）；LCC组患者的手术时间>170 min比例高于RCC组［56.5%（61例）比43.1%（56例），P=0.039］。2组患者术后短期并发症的发生率差异均无统计学意义（均P>0.05），5年总体生存率（OS）、肿瘤特异性生存率（CSS）及无病生存率（DFS）差异亦均无统计学意义（均P>0.05）。病理分期为Ⅳ（HR=28.970，95%CI：1.768~474.813，P=0.018）、术中出血>100 ml（HR=2.297，95%CI：1.351~3.907，P=0.002）及有癌结节（HR=2.044，95%CI：1.047~3.989，P=0.036）是LCC组患者手术后死亡的相关因素；体重过轻（HR=0.428，95%CI：0.192~0.955，P=0.038）、超重（HR=0.316，95%CI：0.125~0.800，P=0.015）、肥胖（HR=0.211，95%CI：0.067~0.658，P=0.007）、淋巴结转移（HR=2.682，95%CI：1.497~4.807，P=0.001）、有癌结节（HR=2.507，95%CI：1.301~4.831，P=0.027）及术后住院日超过9 d（HR=1.829，95%CI：1.070~3.128，P=0.006）是RCC组患者手术后死亡的相关因素。 结论： 75岁及以上LCC高龄结肠癌患者手术时间较RCC者长；但2组术后并发症发生率差异无统计学意义；病理分期高、术中出血多及癌结节为LCC组患者预后不良的相关因素；BMI异常、淋巴结转移、癌结节及术后住院日延长是RCC组患者预后不良的相关因素。.