A new method in the long-term mortality related With heart valve replacement

This research mainly discusses the lethal factors of patients who receive the surgery of heart valve replacement for a long time. The research purpose is to provide the reference for the therapy of clinic. Logistic regressive mathematical model and a new conditioning (training) set are given. Applying incomplete difference analysis to the model and testing with reamer intercept method to ensure the correctness of the model, we obtain that the patient with diabetes, ejection fraction (the percent of discharging blood) less than 35% after surgery, the time of artery block between 61-90minutes, and the age less than 15 or more than 65 are risk factors of the long-term deaths.