Abstract: ObjectiveTo evaluate retrospectively the incidence and treatment of nosocomial infection of senile leukemia.MethodsTo study the incidence, pathogenic microorganism and treatments of nosocomial infection in 78 patients from October 1998 to December 2000 in our hospital.ResultsIncidence of nosocomial infection was 41.0% in all 78 cases. 7 patients (21.9%) died of mixture infection.Conclusions Immune dysfunction of patients is the major cause of infectious death. Supporting treatment must be reinforced to patients of senile leukemia.

Key words: senile leukemia, nosocomial infection, treatment