• Lorena Rodríguez-Muñoz, Rebeca Barrera-Salinas, Carlos Sánchez-García, Fortino Solórzano-Santos, Denisse N Vaquera-Aparicio, and Delmi López-Castillo.
• Department of Medical Pediatrics, Hospital del Niño "Dr. Federico Gómez Santos", Saltillo, Coahuila.
• Gac Med Mex. 2023 Jan 1; 159 (2): 135141135-141.

BackgroundSpotted fever rickettsiosis is a serious disease with a high mortality rate if not timely detected.ObjectiveTo describe the characteristics of patients hospitalized for spotted fever rickettsiosis, as well as the risk factors associated with poor prognosis.Material And MethodsData from medical records of patients hospitalized between August 2012 and July 2022 were collected. Variables were analyzed using Mann-Whitney's U-test, Fisher's exact test, and univariate or multivariate logistic regression analysis.ResultsTwenty-six patients were analyzed, among which a mortality of 57.6% was identified. In the between-group comparison, platelet count was lower in non-survivors (16.0 × 103/μL vs. 25.9 × 103/μL, p = 0.031). The percentage of surviving patients who received treatment more than 72 hours after fever onset was 45.5% (five patients) vs. 86.7% of non-survivors (13 patients) (p = 0.034). Receiving treatment 72 hours after fever onset increased by 7.09 times the probability of a fatal outcome (OR = 8.09, 95% CI = 1.1-55.8, p = 0.034).ConclusionsStarting adequate treatment 72 hours after the onset of fever may be an important risk factor for mortality, hence the importance of timely diagnosis and appropriate treatment of this disease.Copyright: © 2023 Permanyer.

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