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Lacunar infarcts: no black holes in the brain are benign

Bo Norrving1

  • 1Department of Neurology, Lund University Hospital, S-221 85 Lund, Sweden. bo.norrving@med.lu.se

Practical Neurology
|July 23, 2008
PubMed

Insights

Lacunar infarcts, a common stroke type, have a serious long-term outlook, including risks of recurrent stroke, cognitive decline, and death. Effective secondary prevention involves antiplatelet drugs, blood pressure management, statins, and lifestyle changes.

Area of Science:

  • Neurology
  • Vascular Neurology
  • Stroke Medicine

Background:

  • Lacunar infarcts constitute approximately 25% of all ischemic strokes.
  • Diagnostic challenges and non-small vessel disease etiologies affect one-third of cases.
  • Recent evidence indicates a non-benign prognosis, with risks comparable to other stroke subtypes.

Purpose of the Study:

  • To highlight the significant prognostic implications of lacunar infarcts.
  • To emphasize the long-term risks associated with lacunar infarcts, including cognitive decline and dementia.
  • To outline key strategies for secondary prevention in patients with lacunar infarcts.

Main Methods:

  • Review of recent studies and clinical evidence regarding lacunar infarcts.
  • Analysis of diagnostic pitfalls and etiological factors.
  • Evaluation of prognostic outcomes and secondary prevention strategies.

Main Results:

  • Prognosis for lacunar infarcts is not benign, with risks of recurrent stroke similar to other ischemic stroke subtypes.
  • Silent small vessel disease significantly impacts the prognosis of index strokes.
  • Acute phase response to intravenous thrombolysis is comparable to other ischemic stroke subtypes.

Conclusions:

  • Lacunar infarcts carry significant long-term risks, including cognitive decline, dementia, and mortality.
  • Effective secondary prevention is crucial and includes antiplatelet therapy, blood pressure control, statins, and lifestyle modifications.
  • Understanding and managing small vessel disease is vital for improving outcomes in lacunar stroke patients.

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