Abstract TMP42: Reducing 30-day Stroke Readmissions Using a Multi-Step Quality Improvement Approach

Abstract

Background: Thirty-day all-cause readmissions occur in about 12% of acute ischemic stroke (AIS) patients, are associated with a 4-fold increase in mortality, and are associated with increased cost utilization. Therefore, reducing 30-day readmissions in AIS patients is of paramount importance. In this study, we aimed to test the effect of a multi-step quality improvement (QI) initiative on readmission rates in hospitalized AIS patients. Methods: We included all patients discharged from a Comprehensive Stroke Center with a diagnosis of AIS or TIA over a 3-year period. The pre-intervention period was 1/1/2020 - 9/30/2021. The approach was instituted on 10/1/2021. After a 3-month washout, the post-intervention period was 1/1/2022 - 6/30/2023. Intervention measures are below.1. An inpatient checklist was instituted to help providers identify and address common problems before AIS/TIA patients were discharged.2. Complex patients discharged home would receive a call shortly after discharge to ensure good understanding of their care and next steps. Such patients were also scheduled to follow up in a rapid access clinic within 2 weeks of discharge.3. Complex patients discharged to a facility required a handoff call to the facility’s accepting provider.4. All readmissions were reviewed in our monthly QI meeting, with efforts to identify preventable causes.We used t-tests to compare mean observed to expected (O:E) length of stay and mortality metrics between the pre- and post-intervention periods. We used Chi Square tests to compare overall readmission rates. Results: Over the study period, 2532 patients were discharged with a principal diagnosis of AIS or TIA, and the all-cause 30-day readmission rate was 8.8% (223/2532). Compared to pre-intervention, the post-intervention period had a lower 30-day readmission rate (7.6% vs. 10.2%, p = 0.023), a non-significantly lower mean O:E mortality rate (0.71 vs. 0.82, p = 0.252), and a non-significantly lower mean O:E hospital length of stay (0.92 vs. 0.88, p = 0.13). Conclusion: At a Comprehensive Stroke Center, a multi-step approach for transitions of care was associated with reduced all-cause readmission rates without increasing hospital length of stay or mortality. Our findings require external validation.