Implementation of the South Australian Regional Telestroke service is associated with improved care quality and lower stroke mortality: A retrospective cohort study

Aust J Rural Health. 2023 Oct;31(5):878-885. doi: 10.1111/ajr.13012. Epub 2023 Jun 23.

Abstract

Introduction: Stroke in Regional Australia may have worse outcomes due to difficulties accessing optimal care. The South Australian Regional Telestroke service aimed to improve telestroke neurologist access, supported by improved ambulance triage.

Objective: To assess stroke care quality and patient mortality pre- and postimplementation of a vascular neurologist-led Telestroke service.

Design: Historically controlled mixed methods cohort study comparing key quality indicators and patient mortality (6 months pre- vs. 18 months postimplementation date [4 June 2018]) at the three major South Australian regional stroke centres. The primary outcome was 13 care quality indicators as a combined composite risk-adjusted score, and the secondary outcome was risk-adjusted mortality at 12-month postadmission.

Findings: On an annualised basis, of 189 patients with stroke, more were admitted postintervention to the regional stroke centres than in the control period (158 [annualised rate 105.3, 95% CI 86.2-127.4] vs. 31 [annualised rate 62.0, 95% CI 47.5-79.5]) Baseline patient characteristics were similar in both periods. Post-implementation, median last-known-well time to presentation (3.5 h [IQR 1.6-17] vs. 2.0 [IQR 1-14]; p = 0.46) and door to needle times (121 min [IQR 97-144] vs. 90 [IQR 75-138]; p = 0.65) were not significantly lower but an improvement in the combined composite quality score was observed (0.069 [95% CI 0.004-0.134; p = 0.04]), reflecting individual improvements in some quality indicators. Mortality at 12-month postimplementation was substantially lower postimplementation (prechange 23% vs. postchange 13% [hazard ratio 0.58 (95% CI 0.44-0.76; p < 0.001)]).

Conclusion: Implementation of a South Australian Regional Telestroke service was associated with improved care metrics and lower mortality.

Keywords: acute stroke; regional area; stroke care; telestroke.

MeSH terms

  • Australia
  • Cohort Studies
  • Fibrinolytic Agents / therapeutic use
  • Humans
  • Retrospective Studies
  • South Australia
  • Stroke* / therapy
  • Telemedicine* / methods
  • Thrombolytic Therapy
  • Tissue Plasminogen Activator / therapeutic use
  • Treatment Outcome

Substances

  • Fibrinolytic Agents
  • Tissue Plasminogen Activator