Previous Disability and Benefit of Acute Phase Therapy in Functional Prognosis of Selected Patients with Ischemic Stroke

José Lourenço Rosa, Marta Alves, Patrícia Ferreira, Ana Luísa Papoila, Ana Paiva Nunes

Research output: Contribution to journalArticlepeer-review

Abstract

Objectives: Patients’ previous disability (PD) is a key factor when considering acute stroke therapy. PD's exact impact on functional prognosis of patients with acute ischemic stroke remains not entirely clarified. We aimed to analyze PD's influence on functional outcome three months after ischemic stroke. Materials and methods: Retrospective analysis of prospectively collected data concerning patients with acute ischemic stroke admitted to Stroke Unit of a tertiary center who underwent acute phase therapy between 2017 and 2019. Modified Rankin Scale (mRS) was used to define PD (with previous mRS≥3). Patients with PD were selected for treatment based on similar baseline characteristics to patients without PD. Patients were classified into two groups according to previous mRS: mRS<3 and mRS≥3. We defined bad outcome at three months after stroke as mRS≥3 for patients with previous mRS<3, and as a higher score than baseline mRS for patients with previous mRS≥3. Results: We identified 1169 eligible patients – 1016 patients with previous mRS<3 and 153 patients with previous mRS≥3. Most baseline characteristics did not differ significantly between them. For patients ≤75 years old, PD was associated with worse outcome (odds ratio estimate [OR] 4.50, p < 0.001). For patients >75 years old, PD was protective against worse outcome (OR 0.42, p < 0.001). In patients with previous mRS≥3 and >75 years old, there was a higher proportion of women (p = 0.005). Conclusions: PD might not be a relevant factor when considering acute stroke therapy in selected patients >75 years old, especially women. Further studies are needed to clarify these findings.

Original languageEnglish
Article number106183
JournalJournal of Stroke and Cerebrovascular Diseases
Volume31
Issue number1
DOIs
Publication statusPublished - Jan 2022

Keywords

  • Acute phase therapy
  • Functional prognosis
  • Ischemic stroke
  • Previous disability

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