Tropical Doctor > Volume 39, Number 3 > Pp. 158-160

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Short Reports

Risk factors for fatality in patients with Crimean-Congo haemorrhagic fever

Nuriye Tasdelen Fisgin MD     Esra Tanyel MD     Levent Doganci MD      Necla Tulek MD  

Ondokuz Mayis University Faculty of Medicine, Department of Clinical Bacteriology and Infectious Diseases, Samsun, Turkey

Correspondence to: Prof. Dr. Levent Doganci, Ondokuz Mayis Universitesi, Tp Fakültesi, Enfeksiyon Hastalklar AD, Kurupelit, 55139, Samsun, Turkey Email: drlevdog{at}yahoo.com

Crimean-Congo haemorrhagic fever (CCHF) is a potentially fatal viral disease. In this study, the aim was to investigate the prognostic factors affecting the patient's survival and risk factors to fatality. At Ondokuz Mayis University Faculty of Medicine, a tertiary referral centre near the CCHF epidemic region, patients with typical clinical findings and indicative microbiological results for IgM and/or reverse transcriptase-polymerase chain reaction of CCHF virus were enrolled in the study, from 2004 to 2007. Patients were divided into two subgroups according to their survival outcomes; group I (n = 44) survived patients and group II (n = 6) consisted of fatal cases.

The median platelet count was significantly lower in the fatal group (11000/mm³) when compared to the survived group (49500/mm³). Aspartate transferase and alanine transferase (ALT) levels were significantly higher in group II, when compared to group I. Also, the median range of serum lactic dehydrogenase (LDH) and creatinine phosphokinase (CPK) levels were much more elevated, and prothrombin time (PT) and activated partial thromboplastin time (aPTT) were prolonged in fatal cases. There was also a significant difference in median age of these two groups. Advanced age, late admission, low platelet count, increased AST, ALT, CPK and LDH levels, and prolonged PT and aPTT could be an early indicator of poor prognosis in patients with CCHF.

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