Journal Article

Incidence and Predictive Factors of Central Nervous System Dysfunction in Patients Consulting for Dengue Fever in Cayenne Hospital, French Guiana

Simonnet, Christine, Djossou, Félix, Vesin, Guillaume, Donutil, Gerd, Okandze, Antoine, Malvy, Denis, Prince, Christelle, Mosnier, Emilie, Nacher, Mathieu, Balcaen, John, Bidaud, Bastien, Matheus, Séverine, Egmann, Gérald

2016

Overview

The frequency, the clinical characteristics, and the prognosis of dengue is highly variable. Dengue fever is associated with a range of neurological manifestations. The objective of the present study was to determine the incidence of neurological signs and their predictive factors using data from cases of dengue seen and followed in Cayenne Hospital during the Dengue 2 epidemic in 2013. In 2013, a longitudinal study using data from all cases of dengue seen in Cayenne hospital was collected. Medical records used a standardized form to collect demographic information, clinical signs and biological results and the date at which they were present. The analysis used Cox proportional modeling to obtain adjusted Hazard ratios. A total of 1574 patients were included 221 of whom developed central nervous system signs. These signs were spontaneously resolutive. There were 9298person days of follow-up and the overall incidence rate for central nervous system signs was 2.37 per 100 person-days. The variables independently associated with central nervous system anomalies were headache, Adjusted Hazard ratio (AHR) = 1.9(95%CI = 1.4-2.6), bleeding AHR = 2 ((95%CI = 1.3-3.1), P = 0.001, abdominal pain AHR = 1.9 ((95%CI = 1.4-2.6), P<0.001, aches AHR = 2.1 ((95%CI = 1.5-2.9), P<0.001, and fatigue AHR = 1.5 ((95%CI = 1.3-1.7), P<0.001. Overall, the present study suggests that neurological signs of dengue are not exceptional even in patients without the most severe features of dengue. These manifestations were spontaneously resolutive. Here it was not possible to distinguish between encephalitis or encephalopathy. Further studies would require more in depth exploration of the patients.

• Publisher: Public Library of Science,Public Library of Science (PLoS)
• Subject: Analysis / Biological effects / Biology and Life Sciences / Bleeding / Central nervous system / Central Nervous System Diseases - etiology / Central Nervous System Diseases - physiopathology / Correlation analysis / Data collection / Demographics / Dengue / Dengue - complications / Dengue - epidemiology / Dengue - physiopathology / Dengue fever / Encephalitis / Encephalopathy / Epidemics / Fatigue / Fever / French Guiana - epidemiology / Headache / Health surveillance / Hospitals / Humans / Incidence / Infections / Infectious diseases / Laboratories / Longitudinal Studies / Management / Medical prognosis / Medical records / Medicine and Health Sciences / Nervous system / Pain / Patients / Prognosis / Public health / Risk factors / Survival analysis / Tropical diseases / Vector-borne diseases / Viral diseases / Viral infections / Viruses