Abstract
Older adults with chronic kidney disease (CKD) often have many comorbidities, which requires them to take multiple medications. As the number of daily medications prescribed increases, the risk for polypharmacy increases. Understanding and improving medication adherence in this patient population is vital to avoiding the drug-related adverse events of polypharmacy. The primary objective of this review is to summarize the existing literature and to understand the factors leading to medication nonadherence in older patients with CKD. In this review, we discuss the prevalence of polypharmacy, the current lack of consensus on the incidence of medication nonadherence, the heterogeneity of assessing medication adherence, and the most common differential diagnoses for medication nonadherence in this population. Specifically, the most common differential diagnoses for medication nonadherence in older adults with CKD are (1) medication complexity; (2) cognitive impairment; (3) low health literacy; and (4) systems-based barriers. We provide tailored strategies to address these differential diagnoses and subsequently improve medication adherence. The clinical implications include deprescribing to decrease medication complexity and polypharmacy, utilizing a team-based approach to identify and support patients with cognitive impairment, enriching communication between health providers and patients with low health literacy, and improving health care access to address systems-based barriers. Further research is needed to determine the effects of addressing these differential diagnoses and medication adherence in older adults with CKD.
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The authors would like to thank Laura Triantafylidis, PharmD, BCGP, for her review of this manuscript.
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Montgomery T. Owsiany, Chelsea E. Hawley, and Julie M. Paik declare they have no conflicts of interest.
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Conceptualization: MTO and JMP. Literature search: MTO and CEH. Writing—original draft preparation: MTO. Writing—review and editing: MTO, CEH, and JMP.
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Owsiany, M.T., Hawley, C.E. & Paik, J.M. Differential Diagnoses and Clinical Implications of Medication Nonadherence in Older Patients with Chronic Kidney Disease: A Review. Drugs Aging 37, 875–884 (2020). https://doi.org/10.1007/s40266-020-00804-8
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DOI: https://doi.org/10.1007/s40266-020-00804-8