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Dyslipidemia as a risk factor for ischemic stroke

Konstantinos Tziomalos1, Vasilios G Athyros, Asterios Karagiannis

  • 1Department of Clinical Biochemistry (Vascular Prevention Clinic), Royal Free Campus, University College London Medical School, University College London (UCL), London, UK. athyros@med.auth.gr

Current Topics in Medicinal Chemistry
|October 24, 2009
PubMed

Insights

Dyslipidemia, particularly high LDL-C and low HDL-C, is linked to ischemic stroke risk. Statins effectively reduce stroke risk, but further research is needed to optimize their use in specific patient groups.

Area of Science:

  • Neurology
  • Cardiology
  • Metabolic Disorders

Background:

  • Ischemic stroke is a leading cause of death and disability.
  • The role of dyslipidemia in ischemic stroke pathogenesis is less understood than in coronary heart disease (CHD).
  • Epidemiological data on dyslipidemia and stroke risk are conflicting.

Purpose of the Study:

  • To clarify the association between dyslipidemia and ischemic stroke.
  • To review the efficacy of lipid-modifying therapies, particularly statins, in stroke prevention.
  • To inform current guidelines on lipid management for stroke and CHD prevention.

Main Methods:

  • Review of epidemiological studies on dyslipidemia and ischemic stroke.
  • Analysis of clinical trial data on lipid-lowering drugs, focusing on statins.
  • Examination of current clinical guidelines for stroke and CHD prevention.

Main Results:

  • Elevated LDL-C and low HDL-C levels are associated with increased ischemic stroke risk.
  • Statins consistently reduce ischemic stroke risk in patients with and without existing CHD.
  • Statins also reduce the risk of recurrent vascular events but may increase hemorrhagic stroke risk.

Conclusions:

  • Current guidelines recommend uniform lipid targets for primary and secondary prevention of stroke and CHD.
  • Stroke and transient ischemic attacks of carotid origin are considered CHD risk equivalents.
  • Further trials are needed to identify stroke patients without CHD who would most benefit from statin therapy.

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