Department of Visceral and Transplantation Surgery, University of Berne, Berne, Switzerland.
Ann Surg Oncol. 2011 Jul;18(7):1899-906. doi: 10.1245/s10434-011-1571-0. Epub 2011 Feb 5.
PURPOSE: To investigate the influence of the introduction of total mesorectal excision (TME) on local recurrence rate and survival in patients with rectal cancer. METHODS: A total of 171 consecutive patients underwent anterior or abdominoperineal resection for primary rectal cancer. When the TME technique was introduced, the clinical setting, including the surgeons, remained the same. Group 1 (1993-95, n =53) underwent conventional surgery and group 2 (1995-2001, n = 118) underwent TME. All patients were followed for 7 years or until death. RESULTS: Between the two groups, no statistically significant differences were present with regards to patient-, treatment-, or tumor-related characteristics apart from the time point of radiotherapy. The total local recurrence rates were 11 of 53 (20.8%) in group 1 and 7 of 118 (5.9%) in group 2, and the rates of isolated local recurrences were 6 of 53 (11.3%) in group 1 and 2 of 118 (1.7%) in group 2. Both differences were highly statistically significant. The disease-free survival in groups 1 and 2 was 60.4 and 65.3% at 5 years, and 58.5 and 65.3% at 7 years, respectively. Excluding patients with synchronous or metachronous distant metastasis from the analysis, both the disease-free survival and the cancer-specific survival were statistically significantly better in group 2 than in group 1. No statistically significant difference between the two groups was detected regarding the overall survival. CONCLUSIONS: The introduction of TME led to an impressive reduction of the local recurrence rate. Survival is mainly determined by the occurrence of distant metastasis, but TME seems to improve survival in patients without systemic disease.
目的:研究全直肠系膜切除术(TME)的引入对直肠癌患者局部复发率和生存率的影响。
方法:共对 171 例原发性直肠癌患者进行了前侧或经腹会阴联合切除术。当引入 TME 技术时,临床环境(包括外科医生)保持不变。第 1 组(1993-1995 年,n=53)接受常规手术,第 2 组(1995-2001 年,n=118)接受 TME。所有患者均随访 7 年或直至死亡。
结果:两组患者在患者、治疗或肿瘤相关特征方面无统计学差异,除了放疗时间点。第 1 组局部总复发率为 53 例中的 11 例(20.8%),第 2 组为 118 例中的 7 例(5.9%),孤立性局部复发率第 1 组为 53 例中的 6 例(11.3%),第 2 组为 118 例中的 2 例(1.7%)。这两个差异都具有高度统计学意义。第 1 组和第 2 组的无病生存率分别为 5 年时的 60.4%和 65.3%,7 年时的 58.5%和 65.3%。将同时或异时远处转移的患者排除在分析之外,第 2 组的无病生存率和癌症特异性生存率均明显优于第 1 组。两组的总生存率无统计学差异。
结论:TME 的引入显著降低了局部复发率。生存率主要取决于远处转移的发生,但 TME 似乎可以改善无全身疾病患者的生存率。
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