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Coronary CT Angiography as a Diagnostic and Prognostic Tool: Perspectives from the SCOT-HEART Trial

Mhairi Doris1, David E Newby2

  • 1Centre for Cardiovascular Science, University of Edinburgh, 49 Little France Crescent, Edinburgh, EH16 4SB, UK. mhairi.doris@ed.ac.uk.

Current Cardiology Reports
|January 20, 2016
PubMed

Insights

Coronary computed tomography angiography (CCTA) aids diagnosis for suspected angina. This non-invasive test improved patient management and reduced coronary heart disease events in the SCOT-HEART trial.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Clinical Trials

Background:

  • Coronary artery disease (CAD) is a leading global cause of mortality.
  • Diagnostic accuracy of coronary computed tomography angiography (CCTA) is established, but its impact on patient outcomes requires further investigation.
  • Non-invasive anatomical testing's role in risk stratification and management for suspected coronary heart disease needs clarification.

Purpose of the Study:

  • To determine if CCTA, in addition to standard care, improves diagnosis, investigation, and treatment for patients with suspected angina due to coronary heart disease.
  • To assess the impact of CCTA on patient management and subsequent coronary heart disease outcomes.

Main Methods:

  • The Scottish COmputed Tomography of the HEART (SCOT-HEART) trial involved patients referred for suspected angina.
  • Participants received standard care, with a subset also undergoing CCTA.
  • Outcomes included diagnostic clarity, treatment alterations, and rates of coronary heart disease death or myocardial infarction.

Main Results:

  • CCTA clarified the diagnosis of angina due to coronary heart disease in approximately 25% of patients.
  • Significant alterations in patient treatment and management were observed following CCTA.
  • These changes were associated with a reduced risk of subsequent coronary heart disease death or non-fatal myocardial infarction.

Conclusions:

  • CCTA is a valuable diagnostic tool for patients presenting with suspected angina pectoris.
  • The use of CCTA leads to improved diagnostic clarity and more targeted, appropriate treatments.
  • SCOT-HEART demonstrates that CCTA improves coronary heart disease outcomes.

Keywords:
AnginaCT coronary angiographyCoronary heart diseaseMyocardial infarctionOutcomes

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