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Endothelial Dysfunction and Coronary Artery Spasm

K

Kumamoto University

Status

Completed

Conditions

Coronary Vasospasm

Study type

Observational

Funder types

Other

Identifiers

Details and patient eligibility

About

Non-obstructive coronary artery disease (NOCAD) frequently accounts for myocardial ischemia in women. Endothelial dysfunction is a pathogenic factor in coronary spastic angina (CSA). CSA is an important cause of NOCAD diagnosed invasively by coronary angiography (CAG). Digital reactive hyperemia peripheral arterial tonometry (RH-PAT) provides noninvasive evaluation of endothelial dysfunction. The investigators hypothesized that the fingertip RH-PAT could predict the presence of CSA in women.

Full description

Outline of methods:

RH-PAT was measured in women with chest pain prior to CAG. Coronary spasm was diagnosed by intra-coronary acetylcholine (ACh) provocation test. Using Flow-Wire, we assessed coronary endothelial function by coronary blood flow increase in response to ACh (ACh-CBF) and coronary flow reserve was assessed by adenosine (Ad-CFR).

Enrollment

158 patients

Sex

Female

Ages

40 to 90 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Stable post-menopausal women complaining angina-like chest pain

Exclusion criteria

  • Severe valvular disease
  • Hypertrophic cardiomyopathy
  • Severe peripheral artery disease
  • Uncontrolled hypertension
  • Severe collagen diseases
  • Acute coronary syndrome

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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