Prophylaxis against fungal infections in solid organ and hematopoietic stem cells transplantationInvasive fungal infections are an important cause of morbidity and mortality in SOT and HSCT recipients. The main species involved are Candida spp. and Aspergillus spp, less frequently Cryptococcus spp., causal agents of mucormycosis and Fusarium spp. Usually occur within the first six months post-transplant, but they do it later, especially during episodes of rejection, which maintains the state of immune system involvement. Prophylaxis recommendations are specific to each type of transplant. In liver transplantation use of fluconazole is recommended only in selected cases by high risk factor for invasive fungal infections (A1). If the patient has a high risk of aspergillosis, there are some suggestions for adults population to use amphotericin B-deoxycholate, liposomal amphotericin B or caspofungin (C2) without being validated none of these recommendations in pediatric population. In adult lung transplant patients where the risk of aspergillosis is higher than in other locations, we recommend universal prophylaxis with itraconazole 200 mg/day, nebulised liposomal amphotericin B or voriconazole (C2), no validated recommendations for pediatrics. In HSCT, universal prophylaxis is recommended only in allogeneic and autologous selected cases. The most accepted indication is fluconazole (A1), and posaconazole (A1) or micafungin (A1) in selected cases with high risk of aspergillosis.Key words: Fungus, Candida, Aspergillus, yeasts, moulds, prophylaxis, amphotericin, fl uconazole, voriconaamphotericin, fluconazole, voriconazole, posaconazole, caspofungin, micafungin, transplants, solid organ transplantation, hematopoietic stem cells transplantation.Palabras clave: Hongos, Candida, Aspergillus, levaduras, hongos filamentosos, profilaxis, anfotericina, fluconazol, voriconazol, posaconazol, caspofungina, micafungina, trasplante, trasplante de órganos sólidos, trasplante de precursores hematopoyéticos.
IntroducciónL as infecciones fúngicas constituyen una importante causa de morbilidad en los pacientes receptores de trasplantes de órganos sólidos (TOS) y trasplante de precursores hematopoyéticos (TPH) 1 , generando desafíos diagnósticos y terapéuticos, elevación de los costos de manejo y elevada mortalidad 2,3 . En los receptores de trasplantes, la enfermedad fúngica invasora (EFI) es provocada tanto por hongos levaduriformes como filamentosos, destacando Candida spp. y Aspergillus spp. 2-4 , menos frecuentemente Cryptococcus spp., agentes causales de mucormicosis 5,6 y Fusarium spp. 7 , infecciones por hongos endémicos como Histoplasma capsulatum, Coccidioides immitis, Paracoccidioides brasiliensis, y con menor cuantía dematiáceos como Cladosporium, Cladophialophora, Scopulariopsis, Alternaria, Curvularia y Bipolaris spp 8 .Existen diferencias en la frecuencia de EFI entre los distintos tipos de TOS y TPH; no obstante, algunas características son comunes: en ambos grupos la mayoría de las EFI son producidas por Candida spp. o ...