• Ewa Deskur-Smielecka, Aleksandra Kotlinska-Lemieszek, Zofia I Niemir, and Katarzyna Wieczorowska-Tobis.
• 1 Department of Palliative Medicine, Poznan University of Medical Sciences , Poland .
• J Palliat Med. 2015 Jul 1;18(7):613-7.

Background And ObjectiveMultiple drugs used in palliative care, including most opioids or their active metabolites may accumulate in patients with abnormal renal function, leading to serious adverse effects. The incidence and severity of renal impairment in palliative care inpatients has not been evaluated. The aim of the study was to investigate the incidence and severity of renal impairment in palliative care inpatients.MethodsA retrospective analysis of medical records of patients admitted to the palliative care ward was performed. Estimated glomerular filtration rate (eGFR) was derived using the Cockcroft-Gault (C-G) and abbreviated Modification of Diet in Renal Disease (aMDRD) equations.ResultsSerum creatinine levels (SCr) were determined in 332 subjects aged 66.4±11.80 years (194 women; mean body mass index [BMI] 22.7±5.21 kg/m(2)). Mean SCr was 107.7±112.31 μmol/L. Elevated SCr (>115 μmol/L) was found in 20.2% of patients. Mean eGFR calculated with C-G and aMDRD equations was 66.6±38.52 mL/min and 78.7±43.55 mL/min/1.73 m(2), respectively. Between 35.2% and 51.8% of patients had eGFR <60 mL/min/1.73 m(2) (depending on the equation used). More than 10% of patients had eGFR <30 mL/min/1.73 m(2). In patients with normal SCr, between 18.9% and 39.2% had eGFR <60 mL/min/1.73 m(2).ConclusionRenal impairment is common in palliative care inpatients, including considerable number of subjects with moderately to severely reduced kidney function.

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