Polypharmacy, potentially inappropriate medications and drug-drug interactions in geriatric patients with hematologic malignancy: Observational single-center study of 122 patients
2018
Abstract Objectives Geriatric patients with hematologic malignancies (HMs) are prescribed targeted and supportive care treatments that add to the preexisting
polypharmacy(
PP).
PPis associated with an increased risk of potentially inappropriate medications (PIM) and
drug-drug interactions(DDI) resulting in increased hospitalization and mortality in the elderly. As very few data exist on these medication issues in the context of HMs, the objective of this study was to evaluate prevalence of
PP, DDI and PIM use at baseline and 3months among elderly patients with HMs who received baseline geriatric assessment. Methods
PP, DDI and PIM use were assessed by a clinical pharmacist at two time points in patients over 75years with HMs undergoing chemotherapy.
PPwas defined as the concurrent use of five or more medications. DDIs were evaluated according to the literature and prescription analysis software. PIMs were assessed according to the Laroche list. Results 122 patients (mean age 81.5; 6.6 medications) were included and after 3months, 86 patients (5.8 medications) were available for a second assessment. Prevalence of
PP, PIM and DDI at inclusion was 75.4%, 34.4% and 71.3%, respectively.
PPwas the only medication risk that was significantly reduced (p Conclusion This observational study highlighted that
PPdecreased over time but neither DDI nor PIM use were reduced. A pharmacist-led evaluation might help to manage these medication issues.
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