Influenza A H1N1 pneumonia in a patient with hairy-cell leukemia

Submitted: January 19, 2016
Accepted: January 19, 2016
Published: January 19, 2016
Abstract Views: 651
PDF: 421
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Severe pandemic influenza A virus (H1N1) infection is associated with risk factors such as pregnancy, obesity and immunosuppression. Immunocompromised patients are at increased risk of more severe or prolonged infection. We report a case of a hairy cell leukemia patient with H1N1 pneumonia which caused severe and prolonged illness. H1N1 virus pneumonia with meticillin-resistant Staphilococcus Aerues (MRSA) coinfection causing Acute Lung Injury (ALI) was treated with a double-dose of osentamyvir, a high dose of teicoplanin and a low dose of corticosteroids. Haematological findings included leucopenia, neutropenia, lymphopenia, reduction of γ-globulins and natural killer (NK) cells. Reduction of NK and γ-globulins may explain the development of severe illness and the prolonged illness Neutropenia may explain the MRSA co-infection. Lymphopenia is directly associated with virus action and is considered to be a marker of the swine influenza in adults.

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Nicolini, A., and A. Perazzo. 2016. “Influenza A H1N1 Pneumonia in a Patient With Hairy-Cell Leukemia”. Monaldi Archives for Chest Disease 73 (2). https://doi.org/10.4081/monaldi.2010.305.