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Título

NEURORADIOLOGICAL MARKERS OF VASCULAR COGNITIVE IMPAIRMENT AFTER STROKE

Resumo

Background: Cognitive vascular impairment (CCV) is a frequent, but overlooked, possible consequence of stroke. The most relevant markers in Magnetic Resonance Imaging (MRI) seem to be, among others, strategic location, severity of white matter changes, as well as the degree of atrophy of the medial temporal lobe. Objective: To assess the relationship between stroke and CCV using markers from MRI. Methods: Systematic review of observational studies published between 2005 and 2020. The search was carried out in the PubMed and SciELO databases with the keywords “stroke”, “MRI”, “Vascular cognitive impairment”. The PRISMA check-list was used to guide this review. Results: 8 studies were selected. “Event location” was the marker in MRI of the skull most frequently considered (7 studies). It proved to be a statistically significant marker (p <0.05) for the prediction of CCV in 6 out 7 studies. 75% of the studies included in this review evaluated the relationship between the presence of “hyperintensity in the white matter” at MRI and CCV. However, this marker was shown to be statistically significant in 50% of these studies. Conclusion: A review that brought together the assessment of a wide range of possible neuroradiological predictors of CVD after stroke had not been carried out so far. Yet it would be particularly useful to evaluate the markers in a more homogeneous way in a study with a larger sample size.