Modified DWI-FLAIR mismatch guided thrombolysis in unknown onset stroke
Language English Country Netherlands Media print
Document type Journal Article
PubMed
30415393
DOI
10.1007/s11239-018-1766-3
PII: 10.1007/s11239-018-1766-3
Knihovny.cz E-resources
- Keywords
- DWI-FLAIR mismatch, Thrombolysis, Unknown onset stroke, Wake-up stroke,
- MeSH
- Time Factors MeSH
- Stroke diagnostic imaging drug therapy physiopathology MeSH
- Diffusion Magnetic Resonance Imaging * MeSH
- Adult MeSH
- Fibrinolytic Agents administration & dosage adverse effects MeSH
- Intracranial Hemorrhages chemically induced MeSH
- Clinical Decision-Making MeSH
- Middle Aged MeSH
- Humans MeSH
- Magnetic Resonance Angiography MeSH
- Cerebral Angiography methods MeSH
- Cerebrovascular Circulation MeSH
- Recovery of Function MeSH
- Disability Evaluation MeSH
- Predictive Value of Tests MeSH
- Registries MeSH
- Aged, 80 and over MeSH
- Aged MeSH
- Feasibility Studies MeSH
- Thrombolytic Therapy adverse effects methods MeSH
- Patient Selection MeSH
- Treatment Outcome MeSH
- Check Tag
- Adult MeSH
- Middle Aged MeSH
- Humans MeSH
- Male MeSH
- Aged, 80 and over MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Fibrinolytic Agents MeSH
DWI-FLAIR mismatch has been recently proven to identify patients with unknown onset stroke (UOS) eligible for thrombolysis. However, this concept may exclude patients from thrombolysis who may eventually benefit as well. We aimed to examine the feasibility, safety and potential efficacy of thrombolysis in wake-up stroke (WUS) and UOS patients using a modified DWI-FLAIR mismatch allowing for partial FLAIR positivity. WUS/UOS patients fulfilling the modified DWI-FLAIR mismatch and treated with intravenous thrombolysis (IVT) were compared to propensity score matched WUS/UOS patients excluded from IVT due to FLAIR positivity. The primary endpoint was a symptomatic intracranial hemorrhage (SICH), the secondary endpoints were improvement of ≥ 4 in NIHSS score and mRS score at 3 months. 64 IVT-treated patients (median NIHSS 9) and 64 controls (median NIHSS 8) entered the analysis (p = 0.2). No significant difference in SICH was found between the IVT group and the controls (3.1% vs. 1.6%, p = 0.9). An improvement of ≥ 4 NIHSS points was more frequent in IVT patients as compared to controls (40.6% vs. 18.8%, p = 0.01). 23.4% of IVT patients achieved a mRS score of 0-1 at 3 months as compared to 18.8% of the controls (p = 0.8). SICH, improvement of NIHSS ≥ 4 and mRS 0-1 at 3 months were comparable in thrombolyzed patients with negative FLAIR images versus those thrombolyzed with partial positive FLAIR images (3% vs. 3%, p = 0.9; 40% vs. 41%, p = 0.9; 19% vs. 22%, p = 0.8). Our study signalizes that thrombolysis may be feasible in selected WUS/UOS patients with partial FLAIR signal positivity.
1st Department of Neurology Comenius University Bratislava Slovakia
Danube University Krems Dr Karl Dorrek Straße 30 3500 Krems Austria
Department of Neurology St Anne's University Hospital Brno Brno Czech Republic
Department of Neurology St John's Hospital Vienna Austria
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