Pharmacist-led interventions at hospital discharge: a scoping review of studies demonstrating reduced readmission rates.

Background: Substantial numbers of hospital readmissions occur due to medication-related problems. Pharmacists can implement different interventions at hospital discharge that aim to reduce those readmissions. It is unclear which pharmacist-led interventions at hospital discharge are the most promising in reducing readmissions.

Aim: This scoping review aimed to summarise pharmacist-led interventions conducted at hospital discharge that demonstrated a reduction in readmissions.

Method: We searched the MEDLINE, EMBASE and CINAHL databases up to February 2024. We included studies that focused on pharmacist-led interventions at hospital discharge and reported significant readmission reductions. Two reviewers independently screened titles, abstracts and full texts. Data extracted included study characteristics, populations and the type of implemented pharmacist-led interventions along with the reduction in readmission rates achieved.

Results: We included 25 articles for data synthesis. Many of the studies included either implemented at least two interventions concurrently or were part of broader programmes involving other healthcare professionals. The most common pharmacist-led interventions associated with reduced readmission rates included medication reconciliation, counselling and post-discharge follow-up by telephone. Follow-up primarily aimed to improve patients' treatment adherence through education about their medications. Furthermore, many studies reported on multi-component interventions that began at hospital admission or during inpatient stays, not only at discharge.

Conclusion: Successfully reducing readmissions through pharmacist-led interventions at hospital discharge suggests the effectiveness of a holistic approach incorporating multiple interventions. While these findings offer insights for pharmacists, further research should focus on conducting high-quality studies using a multifaceted approach to identify the most appropriate timing and combination.