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Article Dans Une Revue PLoS Neglected Tropical Diseases Année : 2023

Associated risk factors of severe dengue in Reunion Island: A prospective cohort study

Mathys Carras
  • Fonction : Auteur
Olivier Maillard
Julien Cousty
  • Fonction : Auteur
Patrick Gérardin
Malik Boukerrou
  • Fonction : Auteur
  • PersonId : 844722
Loïc Raffray
Patrick Mavingui
Patrice Poubeau
  • Fonction : Auteur
Antoine Bertolotti
  • Fonction : Auteur

Résumé

Background Since 2018, a dengue epidemic has been raging annually in Reunion Island, which poses the major problem of its morbidity and mortality. However, there is no consensus in the literature on factors associated with severity of illness. The objective of this study was to identify the factors associated with the occurrence of severe dengue (SD) according to the criteria adopted in 2009 by the World Health Organization (WHO), during the 2019 epidemic. Methodology/Principal findings A total of 163 patients with RT-PCR-confirmed dengue were included in a multicenter prospective cohort study in Reunion Island between January and June 2019. Of these, 37 (23%) were classified as SD, which involves presentation dominated by at least one organ failure, and 126 (77%) classified as non-SD (of which 90 (71%) had warning signs). Confusion, dehydration, and relative hypovolemia were significantly associated with SD in bivariate analysis (p < 0.05). The factors associated with SD in multivariate analysis were a time from first symptom to hospital consultation over 2 days (OR: 2.46, CI: 1.42-4.27), a history of cardiovascular disease (OR: 2.75, 95%CI: 1.57-4.80) and being of Western European origin (OR: 17.60, CI: 4.15-74). Conclusions/Significance This study confirms that SD is a frequent cause of hospitalization during dengue epidemics in Reunion Island. It suggests that cardiovascular disease, Western European origin, and delay in diagnosis and management are risk factors associated with SD fever, and that restoration of blood volume and correction of dehydration must be performed early to be effective.
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Dates et versions

hal-04240908 , version 1 (13-10-2023)

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Mathys Carras, Olivier Maillard, Julien Cousty, Patrick Gérardin, Malik Boukerrou, et al.. Associated risk factors of severe dengue in Reunion Island: A prospective cohort study. PLoS Neglected Tropical Diseases, 2023, 17 (4), pp.e0011260. ⟨10.1371/journal.pntd.0011260⟩. ⟨hal-04240908⟩
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