NCT01318629

Angina in Non Coronary Artery Disease

Invasive Findings in Patients With Angina Equivalent Symptoms But No Coronary Artery Disease; Results From the Heart Quest Cohort Study

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 718 (actual)
• Sponsor: Luzerner Kantonsspital · Academic / Other
• Sex: All
• Age: —
• Healthy volunteers: Not accepted

Summary

Many patients undergoing coronary angiography are found to have no significant coronary artery disease (CAD) despite angina equivalent symptoms and/or electrocardiographic abnormalities suggestive of myocardial ischemia. The aim of this study is to systematically assess patients with angina equivalent symptoms despite normal coronary angiograms and to evaluate their symptoms according to a defined algorithm.

Detailed description

All consecutive patients who had coronary angiography at the Luzerner Kantonsspital between July 1st 1996 and July 31st 2008 and who had no significant coronary stenoses (no coronary stenoses ≥ 50%) were recruited for this study. Patients are extensively examined during angiography using acetylcholine infusion and fast atrial pacing. According to the result of the additional invasive examination (vasospasm, vasoconstriction, vasodilation; symptoms during examination) a distinct diagnosis is attributed to the patients (small vessel disease, vasospastic disease, hypertensive heart disease, rhythm disorder, or extracardiac thoracic pain including pulmonary hypertension). Patients are followed-up after 10 years and prognosis of these patients is assessed (including mortality, cardiovascular events, re-angiography, functional status after 10 years).

Conditions

• Angina Pectoris
• Microvascular Angina
• Angina Pectoris, Variant

Timeline

• Start date: 1996-07-01
• Primary completion: 2018-07-01
• Completion: 2018-07-01
• First posted: 2011-03-18
• Last updated: 2013-04-17

Locations

1 site across 1 country: Switzerland