Epidemiology and outcomes of elderly patients requiring renal replacement therapy in the intensive care unit: an observational study

BMC Nephrology

Marco Altarelli¹  Elettra Poli¹  Nathan Axel Bianchi¹  Antoine Guillaume Schneider²  Cécile Salathé³ 

[1] Adult Intensive Care Unit, Service de Médecine Intensive Adulte, Centre Hospitalier Universitaire Vaudois (CHUV), 46, Avenue du Bugnon, 1011, Lausanne, Switzerland;Adult Intensive Care Unit, Service de Médecine Intensive Adulte, Centre Hospitalier Universitaire Vaudois (CHUV), 46, Avenue du Bugnon, 1011, Lausanne, Switzerland;Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland;Adult Intensive Care Unit, Service de Médecine Intensive Adulte, Centre Hospitalier Universitaire Vaudois (CHUV), 46, Avenue du Bugnon, 1011, Lausanne, Switzerland;Intensive Care Unit, Réseau Hospitalier Neuchâtelois (RHNE), Neuchâtel, Switzerland;

关键词: Renal replacement therapy (RRT);    Acute kidney injury (AKI);    Elderly;    Mortality;    Quality of life (QOL);   

DOI  :  10.1186/s12882-021-02302-4

来源: Springer

【 摘 要 】

BackgroundRenal replacement therapy (RRT) in critically ill patients is associated with high morbidity and mortality. The appropriateness of RRT initiation is sometimes questioned in elderly patients. Therefore, we sought to evaluate the long-term mortality, dialysis dependence and quality of life (QOL) of elderly patients who survived critical illness requiring RRT.MethodsThis is a monocentric observational study including all patients > 55 yo who received RRT for acute kidney injury in our intensive care unit (ICU) between January 2015 and April 2018. At the time of the study (May 2019), we assessed if they were still alive by cross referencing our hospital database and the Swiss national death registry. We sent survivors written information and, subsequently, contacted them over the phone. We obtained their consent for participation, asked about their dialytic status and performed an EQ-5D survey with visual analog scale (VAS). Results were stratified according to their age at the time of ICU admission (G1: “55–65 yo”; G2: “> 65–75 yo” and G3: “> 75 yo”). QOL in G3 patients were compared to G1 and G2 and to predicted values.ResultsAmong the 352 eligible patients, 171 died during the index hospital admission. After a median follow-up time of 32.7 months (IQR 19.8), a further 62 had died (median time to death for ICU survivors 5.0 (IQR 15.0) months. Hence, 119 (33.6%) patients were still alive at the time of the study. We successfully contacted 96 (80.7%) of them and 83 (69.7%) were included in the study (G1: 24, G2: 44 and G3: 15). Only 6 (7.2%) were RRT dependent. Patients in G3 had lower EQ-5D and VAS scores than those in G1 and G2 (p < 0.01). These scores were also significantly lower than predicted values (p < 0.05).ConclusionsRRT patients have a very high in-hospital and post discharge mortality. Among survivors, RRT dependency was low. Irrespective of baseline values, patients > 75 yo who survived ICU had a lower QOL than younger patients. It was lower than predicted according to age and sex. The appropriateness of RRT initiation in elderly patients should be discussed according to their pre-existing QOL and frailty.

【 授权许可】

CC BY