Background/aim: Hospital-acquired acute kidney injury (HA-AKI) may commonly develop in Covid-19 patients and is expected to have higher mortality. There is little comparative data investigating the effect of HA-AKI on mortality of chronic kidney disease (CKD) patients and a control group of general population suffering from Covid-19. Materials and methods: HA-AKI development was assessed in a group of stage 3-5 CKD patients and control group without CKD among adult patients hospitalized for Covid-19. The role of AKI development on the outcome (in-hospital mortality and admission to the intensive care unit [ICU]) of patients with and without CKD was compared. Results: Among 621 hospitalized patients (age 60 [IQR: 47-73]), women: 44.1%), AKI developed in 32.5% of the patients, as stage 1 in 84.2%, stage 2 in 8.4%, and stage 3 in 7.4%. AKI developed in 48.0 % of CKD patients, whereas it developed in 17.6% of patients without CKD. CKD patients with HA-AKI had the highest mortality rate of 41.1% compared to 14.3% of patients with HA-AKI but no CKD (p < 0.001). However, patients with AKI+non-CKD had similar rates of ICU admission, mechanical ventilation, and death rate to patients with CKD without AKI. Adjusted mortality risks of the AKI+non-CKD group (HR: 9.0, 95% CI: 1.9-44.2) and AKI+CKD group (HR: 7.9, 95% CI: 1.9-33.3) were significantly higher than that of the non-AKI+non-CKD group. Conclusion: AKI frequently develops in hospitalized patients due to Covid-19 and is associated with high mortality. HA-AKI has worse outcomes whether it develops in patients with or without CKD, but the worst outcome was seen in AKI+CKD patients.
Acute kidney injury, chronic kidney disease, Covid-19, hospitalization, mortality
ÖZTÜRK, SAVAŞ; TURGUTALP, KENAN; ARICI, MUSTAFA; ÇETİNKAYA, HAKKI; ALTIPARMAK, MEHMET RIZA; AYDIN, ZEKİ; SOYPAÇACI, ZEKİ; BORA, FEYZA; KARA, EKREM; CEBECİ, EGEMEN; ÖZLER, TUBA ELİF; DÖLARSLAN, MÜRŞİDE ESRA; SİPAHİ, SAVAŞ; AYAR, YAVUZ; and ŞAHİN, İDRİS
"Impact of hospital-acquired acute kidney injury on Covid-19 outcomes in patients withand without chronic kidney disease: a multicenter retrospective cohort study,"
Turkish Journal of Medical Sciences: Vol. 51:
3, Article 8.
Available at: https://journals.tubitak.gov.tr/medical/vol51/iss3/8