Differences between COVID-19-induced acute kidney injury and chronic kidney disease patients / Diferenças entre pacientes com lesão renal aguda induzida por COVID-19 e pacientes com doença renal crônica

Abstract Introduction: This article describes the main differences between COVID-19-induced acute kidney injury (AKI-COVID19) in patients with previous normal renal function (AKI-NRF) and those with chronic kidney disease (AKI-CKD) treated in a high complexity clinic in Barranquilla (Colombia). Material and Methods: The patients included in this study (n: 572) were those with a positive diagnosis of COVID-19 confirmed by detection of a positive PCR for SARS-CoV-2. Of these patients, 188 developed AKI during their hospital stay. Patients' epidemiological data, serum parameters, and clinical frailty status were recorded. Statistical analysis and comparison among AKI-NRF, AKI-CKD, and non-AKI patients were performed. Results: The incidence of COVID-19-induced AKI was 33%, with the majority classified as AKIN 1, 16% requiring renal replacement therapy, and AKI-COVID19 mortality of 68%. A significantly higher prevalence of hypertension, cardiac disease, and serum reactive C-protein and lower albumin values in AKI-CKD patients was recorded. Mortality rate, invasive ventilation requirement, and D-dimer levels were significantly higher in AKI-NRF patients: Conclusion: Different clinical patterns between AKI-NRF and AKI-CKD were documented.

Resumo Introdução: Este artigo descreve as principais diferenças entre a lesão renal aguda induzida por COVID-19 (LRA-COVID19) em pacientes com função renal normal prévia (LRA-FRN) e aqueles com doença renal crônica (LRA-DRC) atendidos em uma clínica de alta complexidade em Barranquilla (Colômbia). Material e Métodos: Os pacientes incluídos neste estudo (n: 572) foram aqueles com um diagnóstico positivo de COVID-19 confirmado pela detecção de PCR positivo para SARS-CoV-2. Destes pacientes, 188 desenvolveram LRA durante sua internação. Foram registrados os dados epidemiológicos, os parâmetros séricos e o estado de fragilidade clínica dos pacientes. Foram feitas a análise estatística e a comparação entre pacientes com LRA-FRN, LRA-DRC, e pacientes sem LRA. Resultados: A incidência de LRA induzida por COVID-19 foi de 33%, com a maioria classificada como AKIN 1, 16% exigindo terapia renal substitutiva, e a mortalidade por LRA-COVID19 foi de 68%. Foi registrada uma prevalência significativamente mais alta de hipertensão, doença cardíaca e proteína C reativa sérica e valores mais baixos de albumina em pacientes com LRA-DRC. A taxa de mortalidade, a necessidade de ventilação invasiva e os níveis de dímero-D foram significativamente mais altos em pacientes com LRA-FRN. Conclusão: Foram documentados padrões clínicos diferentes entre LRA-FRN e LRA-DRC.

Differences between COVID-19-induced acute kidney injury and chronic kidney disease patients.

INTRODUCTION: This article describes the main differences between COVID-19-induced acute kidney injury (AKI-COVID19) in patients with previous normal renal function (AKI-NRF) and those with chronic kidney disease (AKI-CKD) treated in a high complexity clinic in Barranquilla (Colombia). MATERIAL AND METHODS: The patients included in this study (n: 572) were those with a positive diagnosis of COVID-19 confirmed by detection of a positive PCR for SARS-CoV-2. Of these patients, 188 developed AKI during their hospital stay. Patients' epidemiological data, serum parameters, and clinical frailty status were recorded. Statistical analysis and comparison among AKI-NRF, AKI-CKD, and non-AKI patients were performed. RESULTS: The incidence of COVID-19-induced AKI was 33%, with the majority classified as AKIN 1, 16% requiring renal replacement therapy, and AKI-COVID19 mortality of 68%. A significantly higher prevalence of hypertension, cardiac disease, and serum reactive C-protein and lower albumin values in AKI-CKD patients was recorded. Mortality rate, invasive ventilation requirement, and D-dimer levels were significantly higher in AKI-NRF patients. CONCLUSION: Different clinical patterns between AKI-NRF and AKI-CKD were documented.

Impact of frailty and viral load on acute kidney injury evolution in patients affected by Coronavirus Disease 2019.

This paper describes the main characteristics of coronavirus diseases 2019 (COVID-19) patients suffering from acute kidney injury (AKI) assisted at a high complexity clinic in Barranquilla, Colombia. The patients included in this study (n = 48) were those with a positive diagnosis of COVID-19 confirmed by polymerase chain reaction detection of severe acute respiratory syndrome coronavirus 2, who had developed AKI during their hospital stay. Serum and urine parameters, as well as patient's viral load and clinical frailty scale (CFS) were recorded. A statistical analysis of the recorded parameters, such as comparisons, and correlations between variables of interest, were explored. The prevalence of COVID-19 induced AKI was 41%, being the majority of them classified as AKI network classification 3, with a renal replacement therapy requirement of 29%, and an associated mortality of 73%. AKI patients' mortality showed a significant positive correlation (33%) with patients' CFS score but not with their viral load. COVID-19 induced AKI significantly correlated with patients' frailty status but not to their viral load.