期刊
KIDNEY360
卷 1, 期 7, 页码 614-622出版社
AMER SOC NEPHROLOGY
DOI: 10.34067/KID.0002652020
关键词
acute kidney injury and ICU nephrology; acute kidney injury; black; COVID-19; dialysis; hospital mortality; ICU; New Orleans; obesity; phenotype; proteinuria; renal replacement therapy; SARS; SARS-CoV-2; United States
Background AKI is a manifestation of COVID-19 (CoV-AKI). However, there is paucity of data from the United States, particularly from a predominantly black population. We report the phenotype and outcomes of AKI at an academic hospital in New Orleans. Methods We conducted an observational study in patients hospitalized at Ochsner Medical Center over a 1-monthperiod with COVID-19 and diagnosis of AKI (KDIGO). We examined the rates of RRT and in-hospital mortality as outcome measures. Results Among 575 admissions (70% black) with COVID-19 [173 (30%) to an intensive care unit (ICU)], we found161 (28%) cases of AKI (61% ICU and 14% general ward admissions). Patients were predominantly men (62%) and hypertensive (83%). Median body mass index (BMI) was higher among those with AKI (34 versus 31 kg/m(2), P < 0.0001). AKI over preexisting CKD occurred in 35%. Median follow-up was 25 (1-45) days. The in-hospital mortality rate for the AKI cohort was 50%. Vasopressors and/or mechanical ventilation were required in 105 (65%) of those with AKI. RRT was required in 89 (55%) patients. Those with AKI requiring RRT (AKI-RRT) had higher median BMI (35 versus 33 kg/m(2), P=0.05) and younger age (61 versus 68, P=0.0003). Initial values of ferritin, C-reactive protein, procalcitonin, and lactate dehydrogenase were higher among those with AKI; and among them, values were higher for those with AKI-RRT. Ischemic acute tubular injury (ATI) and rhabdo-myolysis accounted for 66% and 7% of causes, respectively. In 13%, no obvious cause of AKI was identified aside from COVID-19 diagnosis. Conclusions CoV-AKI is associated with high rates of RRT and death. Higher BMI and inflammatory marker levels are associated with AKI as well as with AKI-RRT. Hemodynamic instability leading to ischemic ATI is the predominant cause of AKI in this setting.
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