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J Clin Med ; 10(24)2021 Dec 13.
Article in English | MEDLINE | ID: covidwho-1572524


Patients with end-stage kidney disease represent a frail population and might be at higher risk of SARS-CoV-2 infection. The Lazio Regional Dialysis and Transplant Registry collected information on dialysis patients with a positive swab. The study investigated incidence of SARS-CoV-2 infection, mortality and their potential associated factors in patients undergoing maintenance hemodialysis (MHD) in the Lazio region. Method: The occurrence of infection was assessed among MHD patients included in the RRDTL from 1 March to 30 November 2020. The adjusted cumulative incidence of infection and mortality risk within 30 days of infection onset were estimated. Logistic and Cox regression models were applied to identify factors associated with infection and mortality, respectively. Results: The MHD cohort counted 4942 patients; 256 (5.2%) had COVID-19. The adjusted cumulative incidence was 5.1%. Factors associated with infection included: being born abroad, educational level, cystic renal disease/familial nephropathy, vascular disease and being treated in a dialysis center located in Local Health Authority (LHA) Rome 2. Among infected patients, 59 (23.0%) died within 30 days; the adjusted mortality risk was 21.0%. Factors associated with 30-day mortality included: age, malnutrition and fever at the time of swab. Conclusions: Factors associated with infection seem to reflect socioeconomic conditions. Factors associated with mortality, in addition to age, are related to clinical characteristics and symptoms at the time of swab.

Blood Purif ; 50(6): 767-771, 2021.
Article in English | MEDLINE | ID: covidwho-1013077


INTRODUCTION: Acute kidney injury (AKI) is a frequent complication in coronavirus disease 2019 (COVID-19) patients admitted to intensive care unit (ICU) for severe respiratory failure. The aim is to evaluate the rate of AKI, defined according to Kidney Disease: Improving Global Outcome guidelines, in a series of critical COVID-19 patients admitted to the ICU of a single tertiary teaching hospital. METHODS: From April to May 2020, all consecutive critically ill COVID-19 patients admitted to the ICU who did not meet exclusion criteria (length of ICU stay <48 h, ESRD requiring dialysis, and patients still hospitalized in ICU at the time of data analysis) were enrolled in this study. Patients were stratified according to the highest AKI stage attained during ICU stay. RESULTS: Sixty-one patients were included in the analysis. AKI was observed in 35/61 patients (57.4%): 25/35 episodes (71.4%) were observed within the first 7 days. AKI was classified as follows: 17.1% stage 1, 25.7% stage 2, and 57.2% stage 3. Fourteen out of 20 stage-3 patients required continuous renal replacement therapy (CRRT), mostly related to persistent oliguria. The overall ICU mortality was 68.9%, and it was higher in patients developing AKI if compared to no-AKI patients (p = 0.006). Renal function recovery of any grade was observed in 14 out of 35 AKI patients (40%). Among patients undergoing CRRT, 13 patients were still dialysis dependent at the time of death. CONCLUSION: In critical COVID-19 patients, ICU mortality is particularly high, especially in patients developing AKI. An accurate monitoring of renal function in early phases of respiratory failure should be ensured in order to timely apply any strategy aimed at limiting renal complications during ICU stay.

Acute Kidney Injury/etiology , COVID-19/complications , Acute Kidney Injury/mortality , Acute Kidney Injury/therapy , Aged , Aged, 80 and over , COVID-19/mortality , COVID-19/therapy , Critical Illness/epidemiology , Female , Humans , Intensive Care Units , Male , Middle Aged , Renal Dialysis , SARS-CoV-2/isolation & purification