The Relevance of Febrile Neutropenia in Oncology
December 30th 2017Febrile neutropenia (FN) is among the most serious clinical complications in patients with cancer who are undergoing chemotherapy. Patients with neutropenia, or low neutrophil counts, are predisposed to serious and life-threatening infections because of their immune system’s impaired ability to mount inflammatory responses to bacteria, fungi, and yeast.1,2 Because fever is often the only sign of infection in these patients, the presence of both fever and neutropenia must be treated as a medical emergency.2,3 Despite advances in treatment and prevention, mortality rates in patients with cancer and FN can range from 5% to 20%. Higher mortality rates are associated with patients who have higher occurrences of infectious complications and more comorbidities.3 Although there are slightly varying definitions of FN, most clinical guidelines follow the definitions set forth by the Infectious Diseases Society of America (IDSA).4,5 The IDSA defines fever as a single oral temperature ≥38.3°C (101°F) or a temperature ≥38.0°C (100.4°F) lasting more than 1 hour, and defines neutropenia as an absolute neutrophil count (ANC)