RT Journal Article T1 Intermittent Courses of Corticosteroids Also Present a Risk for Pneumocystis Pneumonia in Non-HIV Patients A1 Calero-Bernal, Maria L. A1 Martin-Garrido, Isabel A1 Donazar-Ezcurra, Mikel A1 Limper, Andrew H. A1 Carmona, Eva M. K1 Polymerase-chain-reaction K1 Jiroveci pneumonia K1 Carinii-pneumonia K1 Adjunctive corticosteroids K1 Clinical characteristics K1 Respiratory-failure K1 B-cells K1 Infection K1 Innate K1 Cancer AB Introduction. Pneumocystis pneumonia (PCP) is rising in the non-HIV population and associates with higher morbidity and mortality. The aggressive immunosuppressive regimens, as well as the lack of stablished guidelines for chemoprophylaxis, are likely contributors to this increased incidence. Herein, we have explored the underlying conditions, immunosuppressive therapies, and clinical outcomes of PCP in HIV-negative patients. Methods. Retrospective analysis of PCP in HIV-negative patients at Mayo Clinic from 2006-2010. The underlying condition, immunosuppressive therapies, coinfection, and clinical course were determined. PCP diagnosis required symptoms of pneumonia and identification of the organisms by visualization or by a real-time polymerase chain reaction. Results. A total of 128 cases of PCP were identified during the study period. Hematological malignancies were the predisposing condition for 50% of the patients. While 87% had received corticosteroids or other immunosuppressive therapies for >4 weeks prior to the diagnosis, only 7 were receiving PCP prophylaxis. Up to 43% of patients were not on daily steroids. Sixty-seven patients needed Intensive Care Unit (ICU) and 53 received mechanical ventilation. The mortality for those patients requiring ICU was 40%. Conclusions. PCP diagnosis in the HIV-negative population requires a high level of suspicion even if patients are not receiving daily corticosteroids. Mortality remains high despite adequate treatment. PB Hindawi ltd SN 1198-2241 YR 2016 FD 2016-01-01 LK http://hdl.handle.net/10668/19043 UL http://hdl.handle.net/10668/19043 LA en DS RISalud RD Apr 19, 2025