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find Author "LIZhen-kai" 3 results
  • Research Progress of Neoadjuvant Chemotherapy in Advanced Gastric Cancer

    ObjectiveTo summarize the research progress of neoadjuvant chemotherapy in advanced gastric cancer. MethodThe literatures about the research progress of neoadjuvant chemotherapy in the advanced gastric cancer were reviewed. ResultsThe neoadjuvant chemotherapy in the advanced gastric cancer could significantly improve the R0 resection rate, improve the long-term survival rate, and reduce the risk of death.The course of neoadjuvant chemotherapy for locally advanced gastric cancer without distant metastasis generally was 6-9 weeks, and then according to the results of the curative effect evaluation to decide whether to undergo surgery treatment.Further the clinical research and improvement of chemotherapy sensitivity detection method were helpful to the unity of the standard of neoadjuvant chemotherapy. ConclusionsThe curative effect of neoadjuvant chemotherapy in advanced gastric cancer is clear.But there is no uniform standard on such as indications, chemotherapy regimens, medication time, and curative effect evaluation index, and so on.It is still needed the further research of multicenter and large clinical trials.

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  • Research Progress of Preoperative Regional-arterial Chemotherapy in Advanced Gastric Cancer

    ObjectiveTo summarize the research progress of preoperative regional-arterial chemotherapy in advanced gastric cancer. MethodThe literatures about the research progress of preoperative regional-arterial chemotherapy in the advanced gastric cancer were reviewed. ResultsThe preoperative regional-arterial chemotherapy in the advanced gastric cancer could decrease the tumour stage, improve the R0 resection rate and the long-term survival rate, effectively improve the drug concentrations of tumor and portal vein, and not only kill or damage cancer cells directly, but also prevent the metastasis of liver and lymph nodes effectively, and reduce the side effects, cause the nuclear pyknosis and fracture of cancer cells in a short time. The course of preoperative regional-arterial chemotherapy in the advanced gastric cancer generally was 4-9 weeks, and then whether the surgery treatment was decided to undergo according to the results of the curative effect evaluation. ConclusionsThe preoperative regional-arterial chemotherapy in the advanced gastric cancer has more advantages than intravenous chemotherapy, further research of multicenter and large clinical trials, would inaugurate a wider application prospects.

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  • Clinical Pathology Research on Perineural Invasion in Hilar Cholangiocarcinoma

    ObjectiveTo summarize the incidence, patterns and laws of perineural invasion, and explore the path and the influencing factors of perineural invasion in hilar cholangiocarcinoma. MethodsA clinicopathologic study was conducted on sections from 52 patients with hilar cholangiocarcinoma to summarize the incidence and patterns of perineural invasion. The relationship of perineural invasion to lymph node metastasis, serum CA19-9, CEA, total bilirubin (TBIL) level, Bismuth-Corllet classification, or tumor penetration depth of bile duct walls was analyzed by association analysis. ResultsThe overall incidence of perineural invasion was 90.38% (47/52). However, the incidences of perineural invasion had no significant differences among various differentiated adenocarcinoma groups (P > 0.05). The incidences of perineural invasion were not correlated with the lymph node metastasis, serum CA19-9, CEA, TBIL level, and Bismuth-Corlette classification (P > 0.05), which was correlated with the tumor penetration depth of bile duct walls (P < 0.01). There were four patterns of perineural invasion, sequenced them according their incidences from high to low as follows: typeⅡ> typeⅢ> typeⅣ> typeⅠ. The pattern of perineural invasion was correlated with the degree of tumor differentiation (χ2=31.04, P < 0.01). ConclusionsThe incidence of perineural invasion is very high in hilar cholangiocarcinoma. The patterns of perineural invasion are similar in the same patient, and a variety of invasion patterns might coexist. While the pattern of perineural invasion is correlated with the degree of tumor differentiation. The incidence of perineural invasion is correlated with the tumor penetration depth of bile duct walls.

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