A Randomized Pilot and Feasibility Trial of Live and Recorded Music Interventions for Management of Delirium Symptoms in Acute Geriatric Patients

Abstract

Abstract Background Delirium is an acute shift in attention and arousal, usually triggered by acute illness or surgery in older dementia patients. Prognosis is poor, and pharmacological options are limited; non-pharmacological interventions and music show promise. Methods This randomised pilot and feasibility trial tested feasibility, acceptability, fidelity, and safety of music interventions (MIs) for delirium patients and assessed preliminary effectiveness and suitability of the selected effect outcomes. Participants from an acute geriatric ward were randomised to Preferred Recorded Music (PRM) and Preferred Live Music (PLM), delivered for 30 minutes over three consecutive days. Feasibility outcomes included recruitment rate, retention, adherence, deviations, and treatment fidelity. Clinical outcomes were trajectory of delirium symptoms (arousal, attention, cognition), delirium duration, hospital stay length, and medication intake. Post-intervention and between groups changes in delirium symptoms were compared using mixed linear regression models for the repeated measurements. Mann-Whitney test and Fishers exact test were used for length of stay and medication use, respectively. Results 26 participants (PLM = 14; PRM = 12), median age 87, most with hypoactive delirium were recruited at a rate of 3 participants per month. Retention rates for PLM and PRM were 64% and 33% respectively, and adherence to PLM and PRM intervention protocols were 83% and 58%, respectively. Total adherence to the assessment protocols was 44%. PLM was delivered as intended, (treatment fidelity 93%), and PRM did not satisfy treatment fidelity (83%). All delirium symptoms except arousal improved on day 3 compared to baseline, with statistically significant improvement in attention. No conclusive pre-post or between-group differences were detected for any outcomes; confidence intervals were wide. Conclusions Feasibility of recruitment, interventions and assessments was indicated, and greater acceptability, safety and fidelity of the PLM intervention compared with the PRM. Adoption of external assessors is warranted in future trials, to mitigate slow recruitment and low adherence. Wide confidence intervals for most measures and comparisons indicate that the possible effect of the MIs on delirium cannot be excluded. The trial was registered at Clinical Trials, ID: NCT05398211, on 31/05/2022.