Febrile neutropenia are microbiologically documented in only 30% of the cases, and almost
exclusively by blood cultures. The reasons for this low documentation are likely multiple:
(1) some of these fevers are of non-infectious origin. (2) The bacterial inoculum present in
the blood may be low and consequently undetectable by conventional blood cultures.
The primary objective of the study is to assess new blood culture procedures and technics, in
order to improve the diagnostic yield of blood cultures during febrile neutropenic episodes.