¿Es la terapia antifúngica "preemptive" (anticipada) una buena alternativa a la terapia empírica en pacientes con neutropenia febril prolongada?

Patients with prolonged febrile neutropenia are at high risk of invasive fungal infection, so it has been standard practice to initiate empirical antifungal therapy in these cases. However, this strategy is associated with important toxicity, so diagnostic test-guided preemptive antifungal therapy has been proposed as an alternative. Searching in Epistemonikos database, which is maintained by screening 30 databases, we identified three systematic reviews including twelve studies overall. Four randomized controlled trials addressed the question of this article. We combined the evidence using meta-analysis and generated a summary of findings following the GRADE approach. We concluded it is not clear whether preemptive strategy affects mortality because the certainty of the evidence is very low, but it might slightly decrease the use of antifungal agents in patients with prolonged febrile neutropenia.