OBJECTIVETo study the clinical effect of segmental resection of the liver using Glissonean pedicle transection for primary liver cancer.

METHODSThe clinical data of 55 primary liver cancer patients admitted from January 2006 to October 2008 were analyzed retrospectively. Twenty-five of the patients underwent segmental resection of the liver by Glissonean pedicle transection (group A), and 30 underwent routine hepatectomy (group B). The positivity rate of the resection margin, micrometastasis in the hepatic parenchyma surrounding the lesions and postoperative recurrence rates were investigated.

RESULTSThe positivity rate of the resection margin was 4.0% in group A, significantly lower than that of group B. The number of histological micrometastasis was significantly higher in group A than in group B (16 vs 8). The median distance of histological micrometastasis was 6.8 mm (2.7-25.6 mm) in group A and 4.2 mm (2.4-9.0 mm) in group B. The one-year recurrence rate was significantly lower in group A than in group B (16% vs 26.7%).

CONCLUSIONGlissonean pedicle transection for segmental liver resection is a simpler procedure than routine hepatectomy for primary liver cancer and can reduce the number of histological micrometastasis and recurrence rate.

Carcinoma, Hepatocellular ; blood supply ; pathology ; surgery ; Female ; Hepatectomy ; methods ; Humans ; Liver Neoplasms ; blood supply ; pathology ; surgery ; Male ; Neoplasm Invasiveness ; Neoplasm Recurrence, Local ; prevention & control ; Retrospective Studies ; Survival Rate ; Treatment Outcome

OBJECTIVE: To analyze the risk factors for metastasis and recurrence of hepatocellular carcinoma (HCC) postoperatively. METHODS: Data of 270 cases of postoperative HCC were analyzed by SPSS software retrospectively. RESULTS: Out of the 270 cases, 162 got follow-up study and 136 showed metastasis and recurrence. Lots of risk factors induced the recurrence of HCC, such as AFP, tumor form, venous blood invasion, HBV infection, resection dimension and perioperative transfusion. There were different risk factors at different stages. CONCLUSION The early recurrence of HCC may be mediated by macro- or micro-vessel blood invasion and metastasis, the late recurrence by multicentric carcinogenesis or introhepatic cacinoma de novo.
Adult ; Carcinoma, Hepatocellular ; surgery ; China ; epidemiology ; Female ; Follow-Up Studies ; Hepatectomy ; Humans ; Liver Neoplasms ; surgery ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; epidemiology ; Postoperative Period ; Retrospective Studies ; Risk Factors

Objective:To analyze the main factors affecting the Ziziphus jujuba distribution and expand the understanding of its distribution and the corresponding influencing factors by comparing the distribution sites of Z. jujuba predicted by models with those recorded in the literature. Method:More than 200 distribution sites of Z. jujuba accompanied by 55 environmental factors were obtained from literature and specimen review. The environmental factors that affect the distribution of Z. jujuba were explored by maximum entropy （MaxEnt） model， and the potential distribution areas of Z. jujuba in China were analyzed by ArcGIS， followed by the verification of the main environmental factors using receiver-operating characteristic （ROC） curve and Jackknife method. Result:The area under the curve （AUC） values for the test data and training data were both greater than 0.9， which perfectly satisfied the standard， indicating that the research results were accurate and reliable. Conclusion:The annual average temperature， the average temperature in May， the average temperature in the warmest season， vegetation type， soil type， average temperature in June， average temperature in September， and average temperature in August are proved to be the main environmental factors affecting the distribution of Z. jujuba， which can be found almost all over China， except for Heilongjiang and Tibet. Z. jujuba is most suitable to be planted in southeastern Sichuan， Chongqing， southern Gansu， Ningxia， most areas of central Shaanxi， eastern and southwestern Shanxi， Henan， eastern and northern Hubei， northern and eastern Anhui， Shandong， Hebei， Beijing， Tianjin， western Liaoning， and Zhejiang. As revealed by literature review， the most suitable growing areas of Z. jujuba are southeastern Sichuan， central Shaanxi， southwestern Shanxi， western and northern Henan， Shandong， and southwestern and eastern Hebei.