Long-term morphological changes of symptomatic lacunar infarcts and surrounding white matter on structural magnetic resonance imaging

Caroline M.J. Loos, Stephen D.J. Makin, Julie Staals, Martin S. Dennis, Robert J. Van Oostenbrugge, Joanna M. Wardlaw*

*Corresponding author for this work

Research output: Contribution to journalArticle

16 Citations (Scopus)
2 Downloads (Pure)

Abstract

Background and Purpose-Insights into evolution of cerebral small vessel disease on neuroimaging might advance knowledge of the natural disease course. Data on evolution of sporadic symptomatic lacunar infarcts are limited. We investigated long-term changes of symptomatic lacunar infarcts and surrounding white matter on structural magnetic resonance imaging. Methods-From 2 nonoverlapping, single-center, prospective observational stroke studies, we selected patients presenting with lacunar stroke symptoms with a recent small subcortical (lacunar) infarct on baseline structural magnetic resonance imaging and with follow-up magnetic resonance imaging available at 1 to 5 years. We assessed changes in imaging characteristics of symptomatic lacunar infarcts and surrounding white matter. Results-We included 79 patients of whom 32 (41%) had complete and 40 (51%) had partial cavitation of the index lesion at median follow-up of 403 (range, 315-1781) days. In 42 of 79 (53%) patients, we observed a new white matter hyperintensity adjacent to the index infarct, either superior (white matter hyperintensity cap, n=17), inferior (white matter hyperintensity track, n=13), or both (n=12). Conclusions-Half of the sporadic symptomatic lacunar infarcts developed secondary changes in superior and inferior white matter. These white matter hyperintensity caps and tracks may reflect another aspect of cerebral small vesselrelated disease progression. The clinical and prognostic values remain to be determined.

Original languageEnglish
Pages (from-to)1183-1188
Number of pages6
JournalStroke
Volume49
Issue number5
Early online date22 Mar 2018
DOIs
Publication statusPublished - May 2018

Keywords

  • Cerebral small vessel diseases
  • Follow-up studies
  • Lacunar
  • Stroke
  • Wallerian degeneration

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