目的观察直肠癌术中局部植入氟尿嘧啶缓释剂（5-FU SRI）的可行性及疗效。 方法92例直肠癌患者分成治疗组和对照组，治疗组术中在瘤床和沿淋巴引流途径分多点植入5-FU SRI 600 mg，对照组行常规直肠癌根治术，观察2组患者的手术情况、毒副反应、近期并发症及远期疗效。 结果2组的手术时间、出血量以及腹膜炎、吻合口漏、肠梗阻和切口感染发生率的差异均无统计学意义（P＞0.05）；2组患者的白细胞计数、肌酐及ALT水平治疗后高于治疗前（P＜0.05），但2组间差异无统计学意义（P＞0.05）。治疗组腹腔局部复发率及远处转移率均较对照组低（P＜0.05）。 结论直肠癌术中植入5-FU SRI是安全可行的，是预防术后复发转移的有效途径。
2.6 术式原则2.6.1 前入路——前切除术2.6.1.1 手术指征 位于齿状线以上且肛门扩约肌未受累的直肠癌均可实施各类前切除术……
ObjectiveTo detect expression of DTX2 molecule in colorectal cancer (CRC) tissues and investigate its clinical significances.MethodsOncomine and GEPIA databases were used to analyze the expression of DTX2 gene in CRC tissues and normal colorectal tissues, and online data of human protein atlas (HPA) was used to analyze the relationship between DTX2 protein expression and survival prognosis of patients with CRC. The expressions of DTX2 mRNA and protein were detected in the 55 cases of CRC tissues and corresponding paracancerous normal (PN) tissues by using qRT-PCR, Western blot, and immunohistochemistry methods, respectively. The correlations between the expression of DTX2 and the clinicopathologic characteristics were analyzed.Results① The data from Oncomine and GEPIA databases showed that the expression levels of DTX2 mRNA in the CRC tissues were significantly higher than those in the normal colorectal tissues (P<0.05); HPA online data analysis showed that the overall survival of CRC patients with low expression of DTX2 was better than that with high expression of DTX2 (P=0.009 8). ② The results of qRT-PCR and Western blot showed that the expression levels of DTX2 mRNA and protein in the CRC tissues were higher than those in the PN tissues (t=0.722, P<0.001; t=1.314, P<0.001); The results of immunohistochemical staining showed that the positive rate of DTX2 protein expression in the CRC tissues was higher than that in the PN tissues (χ2=0.899, P<0.001). The positive rate of DTX2 protein expression and the expression levels of DTX2 mRNA and protein were related to the depth of tumor invasion, lymph node metastasis, and TNM stage of CRC patients, that was, the deeper depth of tumor invasion, the more lymph node metastasis, and the later TNM stage, the higher positive rate of DTX2 protein expression, the higher expression levels of DTX2 mRNA and protein (P<0.05).ConclusionsDTX2 protein may be a novel biomarker for estimating progression of CRC. However, prognosis evaluation of DTX2 protein on CRC needs further clinical research.
Objective To introduce the surgical technique and results of total mesorectal excision (TME) for rectal cancer. Methods Reviews.Results As a result of TME, local recurrence rates have declined from 20%-30% to 3%-8%, 5-year survival rate have risen to 75%, and the rates of sphincter preservation have risen too.Conclusion Total mesorectal excision reduces the local recurrence rates and raise the survival figures after excision of rectal cancer. Patients have a high quality of life.
Objective To investigate the correlation among lymph node metastasis and clinical features, postoperative survival rate in rectal cancer. Methods Seventy-nine patients who had accepted total mesorectal excision (TME) were collected, and the correlation among their clinical features (including gender, age, tumor size, gross type, depth of infiltration, histology type, differentiated degree and the level of blood serum CEA), lymph node metastasis, and postoperative survival rate were analyzed. Results There was significant correlation between six factors (namely the tumor size, gross type, depth of infiltration, histology type, differentiated degree and the level of blood serum CEA) and lymph node metastasis in single factor analysis. However， multivariate analysis showed that only gross type of tumor and depth of tumor infiltration were related to lymph node metastasis. The postoperative survival time of 43 non-metastasis cases was remarkably longer than that of 33 cases with lymph node metastasis (χ2=18.806， P=0.000), and it was longer in 22 cases with ＜4 lymph nodes metastasis than that of 11 cases with ≥4 lymph nodes metastasis (χ2=4.659， P=0.031). Conclusion In rectal cancer patients the clinical features can reflect the condition of lymph node metastasis in a certain extent, and it can help doctors to evaluate the lymph node metastasis and prognosis.