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2.
BMC Nephrol ; 22(1): 359, 2021 11 01.
Article in English | MEDLINE | ID: covidwho-1496153

ABSTRACT

BACKGROUND: Acute kidney injury (AKI) is common among patients hospitalised with COVID-19 and associated with worse prognosis. The aim of this study was to investigate the epidemiology, risk factors and outcomes of AKI in patients with COVID-19 in a large UK tertiary centre. METHODS: We analysed data of consecutive adults admitted with a laboratory-confirmed diagnosis of COVID-19 across two sites of a hospital in London, UK, from 1st January to 13th May 2020. RESULTS: Of the 1248 inpatients included, 487 (39%) experienced AKI (51% stage 1, 13% stage 2, and 36% stage 3). The weekly AKI incidence rate gradually increased to peak at week 5 (3.12 cases/100 patient-days), before reducing to its nadir (0.83 cases/100 patient-days) at the end the study period (week 10). Among AKI survivors, 84.0% had recovered renal function to pre-admission levels before discharge and none required on-going renal replacement therapy (RRT). Pre-existing renal impairment [odds ratio (OR) 3.05, 95%CI 2.24-4,18; p <  0.0001], and inpatient diuretic use (OR 1.79, 95%CI 1.27-2.53; p <  0.005) were independently associated with a higher risk for AKI. AKI was a strong predictor of 30-day mortality with an increasing risk across AKI stages [adjusted hazard ratio (HR) 1.59 (95%CI 1.19-2.13) for stage 1; p < 0.005, 2.71(95%CI 1.82-4.05); p < 0.001for stage 2 and 2.99 (95%CI 2.17-4.11); p < 0.001for stage 3]. One third of AKI3 survivors (30.7%), had newly established renal impairment at 3 to 6 months. CONCLUSIONS: This large UK cohort demonstrated a high AKI incidence and was associated with increased mortality even at stage 1. Inpatient diuretic use was linked to a higher AKI risk. One third of survivors with AKI3 exhibited newly established renal impairment already at 3-6 months.


Subject(s)
Acute Kidney Injury , COVID-19 , Renal Replacement Therapy , Acute Kidney Injury/diagnosis , Acute Kidney Injury/etiology , Acute Kidney Injury/mortality , Acute Kidney Injury/therapy , COVID-19/complications , COVID-19/diagnosis , COVID-19/epidemiology , Cohort Studies , Hospital Mortality , Humans , Incidence , Intensive Care Units/statistics & numerical data , Kidney Function Tests/methods , Male , Middle Aged , Outcome and Process Assessment, Health Care , Patient Acuity , Renal Replacement Therapy/methods , Renal Replacement Therapy/statistics & numerical data , Risk Factors , SARS-CoV-2/isolation & purification , Severity of Illness Index , United Kingdom/epidemiology
3.
J Crit Care ; 62: 190-196, 2021 04.
Article in English | MEDLINE | ID: covidwho-988305

ABSTRACT

PURPOSE: The aim of this study is to describe the incidence of Acute Kidney Injury (AKI) amongst patients admitted to the Intensive Care Unit (ICU) with COVID-19. In addition we aim to detail the range of Renal Replacement Therapy (RRT) modalities offered to these patients (including peritoneal dialysis - PD - and intermittent haemodialysis - IHD) in order to meet demand during pandemic conditions. MATERIALS AND METHODS: Single-centre retrospective case note review of adult patients with confirmed COVID-19 admitted to ICU. RESULTS: Amongst 136 patients without a prior history of End Stage Kidney Disease (ESKD), 108 (79%) developed AKI and 63% of admitted patients received RRT. Due to resource limitations the range of RRT options were expanded from solely Continuous Veno-Venous HaemoDiaFiltration (CVVHDF - our usual standard of care) to include PD (in 35 patients) and IHD (in 15 patients). During the study period the proportion of RRT provided within ICU as CVVHDF fell from 100% to a nadir of 39%. There were no significant complications of either PD or IHD. CONCLUSIONS: During periods of resource limitations PD and IHD can safely be used to reduce dependence on CVVHDF in select patients with AKI secondary to COVID-19.


Subject(s)
Acute Kidney Injury/etiology , Acute Kidney Injury/therapy , COVID-19/complications , Critical Care/methods , Renal Replacement Therapy/methods , Adult , Aged , Continuous Renal Replacement Therapy/methods , Female , Humans , Intensive Care Units , Intermittent Renal Replacement Therapy/methods , Male , Middle Aged , Peritoneal Dialysis/statistics & numerical data , Retrospective Studies , SARS-CoV-2 , Tertiary Care Centers , United Kingdom/epidemiology
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