PMID- 20545485 OWN - NLM STAT- MEDLINE DCOM- 20100913 LR - 20100615 IS - 1365-2060 (Electronic) IS - 0785-3890 (Linking) VI - 42 IP - 5 DP - 2010 Jul TI - Central nervous system-related symptoms and findings are common in acute Puumala hantavirus infection. PG - 344-51 LID - 10.3109/07853890.2010.480979 [doi] AB - BACKGROUND: Puumala hantavirus (PUUV) causes a hemorrhagic fever with renal syndrome (HFRS) also called nephropathia epidemica (NE). Recent case reports and retrospective studies suggest that NE may damage the pituitary gland. Based on these observations, our goal was to explore the nature of this complication prospectively. METHODS: A total of 58 hospitalized patients with acute NE volunteered to participate. Central nervous system (CNS) symptoms were recorded, cerebrospinal fluid (CSF) samples were collected, human leukocyte antigen (HLA) haplotype was analyzed, brain magnetic resonance imaging (MRI) was acquired, and electroencephalography (EEG) was recorded. Patients with abnormal pituitary MRI finding were examined by an endocrinologist. RESULTS: Most patients experienced CNS symptoms, and half of the CSF samples were positive for PUUV IgM, elevated protein level, or leukocyte count. CSF of patients negative for DR15(2)-DQ6 haplotype was less frequently affected. MRI revealed pituitary hemorrhage in two patients; these two patients suffered sudden loss of vision associated with headache, and they both developed hypopituitarism. Only one patient required long-term hormonal replacement therapy. CONCLUSION: CNS-related symptoms and inflammation in the CSF are common in acute NE. Genetic properties of the host may predispose to CNS involvement. It does seem that pituitary injury and subsequent hormonal insufficiency may complicate the recovery. FAU - Hautala, Timo AU - Hautala T AD - Department of Internal Medicine, Oulu University Hospital, Oulu, Finland. timo.hautala@oulu.fi FAU - Mahonen, Saara-Mari AU - Mahonen SM FAU - Sironen, Tarja AU - Sironen T FAU - Hautala, Nina AU - Hautala N FAU - Paakko, Eija AU - Paakko E FAU - Karttunen, Ari AU - Karttunen A FAU - Salmela, Pasi I AU - Salmela PI FAU - Ilonen, Jorma AU - Ilonen J FAU - Vainio, Olli AU - Vainio O FAU - Glumoff, Virpi AU - Glumoff V FAU - Rytky, Seppo AU - Rytky S FAU - Plyusnin, Alexander AU - Plyusnin A FAU - Vaheri, Antti AU - Vaheri A FAU - Vapalahti, Olli AU - Vapalahti O FAU - Kauma, Heikki AU - Kauma H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Ann Med JT - Annals of medicine JID - 8906388 RN - 0 (HLA Antigens) RN - 0 (Immunoglobulin M) SB - IM MH - Adult MH - Brain/virology MH - Central Nervous System Diseases/genetics/*virology MH - Cerebrospinal Fluid/virology MH - Electroencephalography MH - Female MH - Genetic Predisposition to Disease MH - HLA Antigens/genetics MH - Haplotypes MH - Hemorrhagic Fever with Renal Syndrome/*complications/genetics MH - Humans MH - Immunoglobulin M/cerebrospinal fluid MH - Magnetic Resonance Imaging/methods MH - Male MH - Middle Aged MH - Prospective Studies MH - Puumala virus/*isolation & purification EDAT- 2010/06/16 06:00 MHDA- 2010/09/14 06:00 CRDT- 2010/06/16 06:00 PHST- 2010/06/16 06:00 [entrez] PHST- 2010/06/16 06:00 [pubmed] PHST- 2010/09/14 06:00 [medline] AID - 10.3109/07853890.2010.480979 [doi] PST - ppublish SO - Ann Med. 2010 Jul;42(5):344-51. doi: 10.3109/07853890.2010.480979.