Abstract
BACKGROUND: Adverse drug events (ADEs) from heart failure (HF) pharmacotherapy are common in older people with frailty, but evidence as to how to optimize HF pharmacotherapy is unclear. This qualitative study explores consumer and healthcare professional (HCP) perspectives on ADEs and adverse drug withdrawal effects (ADWEs) related to HF pharmacotherapy to inform key domains of a conceptual model. METHODS: A purposive and snowball sample of participants were contacted directly or recruited across Australia and New Zealand to participate in qualitative semistructured interviews and focus groups. Frailty was explained as a measure of cumulative deficits and consumers (caregivers or individuals aged ≥ 65 years with HF and frailty) and HCPs caring for older patients with HF and frailty were invited according to their self-perception or evaluation of frailty. General inductive analysis identified themes and a hypothesis-generating conceptual model. RESULTS: Thirty-two participants were recruited (consumers [n = 4), cardiologists and other physicians [n = 9], nurses [n = 8], and pharmacists [n = 11]). Three main themes and 8 subthemes related to individual factors, medications, and access to healthcare services were identified. Consumers stated that they want support to maintain their quality of life but have complex medical issues. Most HCP participants perceived the benefits of HF pharmacotherapy to outweigh the risks of ADEs and are hesitant to deprescribe. Participants wanted improved coordination of multidisciplinary teams and patient access to healthcare services. CONCLUSIONS: Perspectives unique to HF pharmacotherapy in older people with frailty characterize how the interplay of HF treatment, ADEs, and ADWEs contributes to individuals' well-being. Future research is needed to further develop the conceptual model.