Serious sepsis, sepsis, septic shock and sepsis with of multiple organ failure are the most important causes of death in post-transplanted neutropenic patients. Few works exist in literature to assist the diagnosis of the etiology of fever in the neutropenic. Literature is still scarce regarding the use of Procalcitonin (PCT) as marker of infection in the population of patients submitted to the hematopoietic stem cell transplant (HSCT). Therefore, studies that evaluate the role of PCT as marker for diagnosis, evolution and prognosis of fever in neutropenics patients after hematologic transplant are necessary.The present study is a prospective cohort that will follow 200 SCT patients and will evaluate the role of the PCT as marker of diagnosis and prognosis of fever of infectious origin in this population. Infectious etiology will be classified as bacterial, fungic or viral only if confirmed by positive culture or appropriate diagnostic test. The patients will be categorized in 04 groups: bacterial infection, fungic infection, viral infection, and negative culture for bacteria.Statistical data: The groups will be compared between themselves and about PCT levels. Calculations will be made to establish sensitivity, specificity and positive and negative predictive values of PCT. The clinical and laboratorial data will be stored in an Excel spread sheet ® 2003 for processing by diverse systems in software.
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