Objective To explore the risk factors of schistosomiasis cirrhosis esophageal varices hemorrhage. Methods A total of 113 cases of schistosomiasis cirrhosis esophageal varices hemorrhage and 128 schistosomiasis cirrhosis esophageal varices patients without hemorrhage were selected and their relevant factors were analyzed statistically. Results There were significant differences between the two groups in the prothrombin time,portal vein diameter,degree of esophageal varices,and varicose vein tumor-like lesions(P<0.01). Conclusion The risk factors of schistosomiasis cirrhosis esophageal varices hemorrhage are the prothrombin time,portal vein diameter,degree of esophageal varices,and varicose vein tumor-like lesions.

GPS was used in the snail survey of Nuanhuping marshland in Poyang Lake region and its application value was discussed. The results suggest that GPS which can measure the marshland area and survey area at real-time and draw electronic maps of snail situation rapidly, could realize the electronic and image management of the data from snail survey and provide more accurate information to the department in charge of schistosomiasis control.