Angina in Non Coronary Artery Disease (HeartQuest)

April 16, 2013 updated by: Prof. Paul Erne, Luzerner Kantonsspital

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

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.

Study Overview

Status

Unknown

Conditions

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).

Study Type

Observational

Enrollment (Actual)

718

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Switzerland
      • Luzern, Switzerland, 6000
        • Luzerner Kantonsspital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

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.

Description

Inclusion Criteria:

  • Coronary angiography at the Luzerner Kantonsspital between July 1st 1996 and July 31st 2008
  • No significant coronary stenoses (no coronary stenoses ≥ 50%)

Exclusion Criteria:

  • Severe valvular heart disease
  • Severe congestive heart failure

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Cause of angina equivalent symptoms in patients with no coronary artery disease
Time Frame: One day
One day
Prognosis of patients with angina equivalent symptoms and normal coronary arteries
Time Frame: 10 years after baseline assessment
10 years after baseline assessment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Luzerner Kantonsspital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 1996

Primary Completion (Anticipated)

July 1, 2018

Study Completion (Anticipated)

July 1, 2018

Study Registration Dates

First Submitted

March 17, 2011

First Submitted That Met QC Criteria

March 17, 2011

First Posted (Estimate)

March 18, 2011

Study Record Updates

Last Update Posted (Estimate)

April 17, 2013

Last Update Submitted That Met QC Criteria

April 16, 2013

Last Verified

April 1, 2013

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Heart Quest

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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