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Risk factors for local recurrence of middle and lower rectal carcinoma after curative resection

World Journal of Gastroenterology 2008年第30期14卷 4805-4809页

作者： Ze-Yu Wu Jin Wan Gang Zhao Lin Peng Jia-Lin Du Yuan Yao Quan-Fang Liu Hua-Huan Lin Department of General Surgery Guangdong Provincial People's Hospital Guangzhou 510080 Guangdong Province China Department of Pathology Guangdong Provincial People's Hospital Guangzhou 510080 Guangdong Province China

AIM： To explore the risk factors for local recurrence of middle and lower rectal carcinoma after curative resection. METHODS： Specimens of middle and lower rectal carcinoma from 56 patients who received curative resection at the Department of General Surgery of Guangdong Provincial People＇s Hospital were studied. A large slice technique was used to detect mesorectal metastasis and evaluate circumferential resection margin status. The relations between clinicopathologic characteristics, mesorectal metastasis and circumferential resection margin status were identified in patients with local recurrence of middle and lower rectal carcinoma. RESULTS： Local recurrence of middle and lower rectal carcinoma after curative resection occurred in 7 of the 56 patients （12.5%）, and was significantly associated with family history （Х^2= 3.929, P = 0.047）, high CEA level （Х^2 = 4.964, P = 0.026）, cancerous perforation （Х^2 = 8.503, P = 0.004）, tumor differentiation （Х^2 = 9.315, P = 0.009） and vessel cancerous emboli （Х^2 = 11.879, P = 0.001）. In contrast, no significant correlation was found between local recurrence of rectal carcinoma and other variables such as age （Х^2 = 0.506, P = 0.477）, gender （Х^2 = 0.102, Z2 = 0.749）, tumor diameter （Х^2 = 0.421, P = 0.516）,tumor infiltration （Х^2 = 5.052, P = 0.168）, depth of tumor invasion （Х^2 = 4.588, P = 0.101）, lymph node metastases （Х^2 = 3.688, P = 0.055） and TNM staging system （Х^2 = 3.765, P = 0.152）. The local recurrence rate of middle and lower rectal carcinoma was 33.3% （4/12） in patients with positive circumferential resection margin and 6.8% （3/44） in those with negative circumferential resection margin. There was a significant difference between the two groups （Х^2 = 6.061, P = 0.014）. Local recurrence of rectal carcinoma occurred in 6 of 36 patients （16.7%） with mesorectal metastasis, and in 1 of 20 patients （5.0%） without mesorectal metastasis. However, there was no significant difference between the two groups （Х^2 = 1.6

关键词： Middle and lower rectal carcinoma Local recurrence Circumferential resection margin mesorectal metastasis

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