Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2018
Renal involvement in fatal cases of chikungunya virus infection.
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Mercado Marcela, Acosta-Reyes Jorge, Parra Edgar, Guzmán Luis, Beltrán Mauricio, Gasque Philippe, Mejía-García Carlos, Viasus Diego
Аннотация
BACKGROUND: Information regarding physiopathology and complications in fatal cases of chikungunya virus (CHIKV) is scarce.
OBJECTIVES: The aim of this study was to describe the frequency and severity of renal complications in fatal cases associated with CHIKV infection based on the clinical and histopathological features from post-mortem tissue biopsies.
STUDY DESIGN: This retrospective study included fatal cases associated with CHIKV infection occurring from September 2014 through October 2015, reported to National System for Public Health Surveillance (SIVIGILA) and laboratory-confirmed by the National Institute of Health of Colombia. Medical records from 13 patients were available. Information was collected on history, physical examination, and haematological, biochemical, radiological, and virologic investigation reports.
RESULTS: Diagnosis of CHIKV infection was performed by positive CHIKV-PCR on post-mortem tissue in 10 cases, positive CHIKV-PCR in serum in 6 cases and anti-CHIKV virus IgM in 2 cases. Only 3 cases were children (≤5 years old). Four cases had underlying diseases, mainly systemic arterial hypertension. The median value of creatinine at admission was 2.8 mg/dL (interquartile range 1.52-4.51). During hospitalization, 9 cases required ICU admission, 8 vasopressor support and 6 mechanical ventilation. Kidney histopathological findings were mainly acute interstitial nephritis (11 cases), congestion/oedema glomerular (10 cases) and acute tubular necrosis (5 cases).
CONCLUSIONS: Renal impairment in fatal cases of CHIKV infection is frequent and related mainly to acute interstitial nephritis. These data demonstrate evidence of acquired kidney injuries during CHIKV infection.
OBJECTIVES: The aim of this study was to describe the frequency and severity of renal complications in fatal cases associated with CHIKV infection based on the clinical and histopathological features from post-mortem tissue biopsies.
STUDY DESIGN: This retrospective study included fatal cases associated with CHIKV infection occurring from September 2014 through October 2015, reported to National System for Public Health Surveillance (SIVIGILA) and laboratory-confirmed by the National Institute of Health of Colombia. Medical records from 13 patients were available. Information was collected on history, physical examination, and haematological, biochemical, radiological, and virologic investigation reports.
RESULTS: Diagnosis of CHIKV infection was performed by positive CHIKV-PCR on post-mortem tissue in 10 cases, positive CHIKV-PCR in serum in 6 cases and anti-CHIKV virus IgM in 2 cases. Only 3 cases were children (≤5 years old). Four cases had underlying diseases, mainly systemic arterial hypertension. The median value of creatinine at admission was 2.8 mg/dL (interquartile range 1.52-4.51). During hospitalization, 9 cases required ICU admission, 8 vasopressor support and 6 mechanical ventilation. Kidney histopathological findings were mainly acute interstitial nephritis (11 cases), congestion/oedema glomerular (10 cases) and acute tubular necrosis (5 cases).
CONCLUSIONS: Renal impairment in fatal cases of CHIKV infection is frequent and related mainly to acute interstitial nephritis. These data demonstrate evidence of acquired kidney injuries during CHIKV infection.