Objective To evaluate hepatic segment vascular occlusion technology in precise resection of liver segment.Methods Sixty-seven cases of liver cancer patients who underwent precision liver segment resection from August 2007 to May 2012 in Qilu Hospital were analyszed retrospectively.There were 51 male patients and 16 female patients,age ranging from 45 to 66 yrs.Results All operations were performed successfully.All cases were with single tumor,the diameter ranged from 2 cm to 6 cm.Resection of segment Ⅲ was performed in 22 cases,segment Ⅳ in 10 cases and segment Ⅵ in 35 cases.Operation time was 50-120 minutes,and the average time was 73 minutes.Blood loss was 50-200 ml,averaging 86 ml.No patient needed blood transfusion.Postoperative incisional liquefaction was found in 6 cases which were cured with interference in time.There was no bile leakage,hemorrhage,celiac infection and complications such as liver failure.The average hospital stay was 7.8 days.No rccurrence was found during 3 months follow-up.Conclusions Hepatic segment vascular occlusion technology was safe and feasible in precise resection of liver segment in liver cancer patients.It effectively controlled blood loss and reduced liver damage.

Plasmodium vivax reemerged in 1993. It has been sustained for more than 25 years and become one of the important indigenous parasitic diseases in northern and western parts of the Republic of Korea near the demilitarized zone. In particular, relapse is a significant concern for the control of malaria, as short- and long-term incubation periods vary among those infected in Korea. In this study, the prevalence of asymptomatic carriers was examined among residents of high endemic areas of vivax malaria during nonseasonal transmission of mosquitoes. Blood samples from 3 endemic regions in northwestern Korea were evaluated by microscopic examination, rapid diagnostic testing, and nested PCR to identify asymptomatic patients carrying malaria parasites in the community. However, no positive malaria case among residents of endemic areas was detected. Additionally, serological analysis was carried out to measure antibodies against 3 antigenic recombinant proteins of P. vivax, merozoite surface protein 1-19, circumsporozoite surface protein-VK210, and liver-stage antigen (PvLSA-N), by the protein array method. Interestingly, seropositivity of sera between previous exposure and samples without exposure to malaria was significantly higher using the PvLSA-N antigen than the other antigens, suggesting that PvLSA-N can be used as a serological marker to analyze the degree of exposure for malaria transmission in endemic areas. This indicates a very low asymptomatic carrier prevalence during the nonmalaria season in the endemic areas of Korea.

Plasmodium vivax reemerged in 1993. It has been sustained for more than 25 years and become one of the important indigenous parasitic diseases in northern and western parts of the Republic of Korea near the demilitarized zone. In particular, relapse is a significant concern for the control of malaria, as short- and long-term incubation periods vary among those infected in Korea. In this study, the prevalence of asymptomatic carriers was examined among residents of high endemic areas of vivax malaria during nonseasonal transmission of mosquitoes. Blood samples from 3 endemic regions in northwestern Korea were evaluated by microscopic examination, rapid diagnostic testing, and nested PCR to identify asymptomatic patients carrying malaria parasites in the community. However, no positive malaria case among residents of endemic areas was detected. Additionally, serological analysis was carried out to measure antibodies against 3 antigenic recombinant proteins of P. vivax, merozoite surface protein 1-19, circumsporozoite surface protein-VK210, and liver-stage antigen (PvLSA-N), by the protein array method. Interestingly, seropositivity of sera between previous exposure and samples without exposure to malaria was significantly higher using the PvLSA-N antigen than the other antigens, suggesting that PvLSA-N can be used as a serological marker to analyze the degree of exposure for malaria transmission in endemic areas. This indicates a very low asymptomatic carrier prevalence during the nonmalaria season in the endemic areas of Korea.