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Time patterns in multiple acute cerebral infarcts.

Vojtech Novotny1, Andrej N Khanevski1,2, Lars Thomassen1,3

  • 11 Centre for Neurovascular Diseases, Department of Neurology, Haukeland University Hospital, Bergen, Norway.

International Journal of Stroke : Official Journal of the International Stroke Society
|November 5, 2016
PubMed
Summary
This summary is machine-generated.

Multiple acute cerebral infarcts from cardiogenic embolism occur simultaneously. Those from internal carotid artery stenosis tend to happen successively, with timing to MRI revealing the cause.

Keywords:
Multiple infarctscardioembolismcarotid stenosisdiffusion-weighted magnetic resonance imagingischemic strokemagnetic resonance imagingtime patterns

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Area of Science:

  • Neurology
  • Cerebrovascular Diseases
  • Neuroimaging

Background:

  • Multiple acute cerebral infarcts can result from concurrent or successive embolic events.
  • Understanding the timing and etiology of these infarcts is crucial for stroke management.

Purpose of the Study:

  • To investigate the relationship between the time from stroke onset to magnetic resonance imaging (MRI) and the underlying mechanisms of multiple acute cerebral infarcts.
  • To differentiate between concurrent and successive embolic events based on infarct etiology.

Main Methods:

  • Prospective observational cohort study of 2125 ischemic stroke patients with diffusion-weighted imaging lesions in multiple arterial territories.
  • Correlation analysis between time to MRI and infarct etiology (cardiogenic embolism vs. internal carotid artery stenosis).

Main Results:

  • A positive correlation was found between time to MRI and multiple infarcts caused by internal carotid artery stenosis (r=0.20, p<0.001).
  • No significant correlation was observed between time to MRI and multiple infarcts caused by cardiogenic embolism (r=-0.02).

Conclusions:

  • Multiple acute cerebral infarcts due to cardiogenic embolism appear to occur concurrently.
  • Multiple acute cerebral infarcts associated with internal carotid artery stenosis are more likely to occur successively over time.