Microvascular angina in patients with normal coronary arteries and with other ischaemic syndromes

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Abstract

In this paper we review the evidence that angina and 'ischaemic' ST depression can be caused by inappropriate constriction of small coronary artery vessels in patients with microvascular angina (i.e. anginal chest pain with angiographically normal coronary arteries). Although the mechanisms responsible for microvascular dysfunction remain unknown, it is conceivable that the constrictor stimuli may involve vessels which are proximal to those involved in metabolically induced dilation, so that the effect cannot be opposed at the size site, by the dilator effect caused by ischaemic metabolites. Furthermore, in this review we also present evidence that myocardial ischaemia may result mainly from inappropriate constriction of small coronary vessels, lather than by obstruction of major epicardial coronary arteries. In addition, there are those prone to the condition, such as specific groups of patients with atherosclerotic ischaemic syndromes, including patients with single isolated coronary artery occlusion aid no evidence of previous myocardial infarction, patients with single-vessel coronary stenosis who underwent successful balloon angioplasty, and patients with single-vessel disease with detectable abnormal vasomotor responses in non-stenotic coronary arteries.

Original languageEnglish
Pages (from-to)96-103
Number of pages8
JournalEuropean Heart Journal
Volume16
Issue numberSUPPL. I
Publication statusPublished - 1995

Keywords

  • Coronary artery disease
  • Coronary vasomotor tone
  • Microvascular dysfunction

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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