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The first multicentre study on coronary anomalies in the Netherlands: MuSCAT
C J Koppel1, B W Driesen2, R J de Winter3
1Department of Cardiology, CAHAL, Centre for Congenital Heart Disease Amsterdam-Leiden, Leiden University Medical Centre, Leiden, The Netherlands.
Summary
This study establishes a structured pathway for diagnosing and treating anomalous coronary arteries, particularly those with an interarterial course. It aims to provide evidence-based recommendations for managing these complex cardiac conditions.
Area of Science:
- Cardiology
- Medical Diagnostics
- Interventional Cardiology
Background:
- Current guidelines for coronary anomalies lack a diagnostic gold standard and consensus on treatment strategies.
- Patients with anomalous origin of a coronary artery from the opposite sinus of Valsalva (ACAOS) with an interarterial course present particular management challenges.
Purpose of the Study:
- To develop evidence-substantiated recommendations for the diagnostic work-up, treatment, and follow-up of patients with anomalous coronary arteries.
- To establish a structured, multicenter clinical care pathway for managing ACAOS.
Main Methods:
- A prospective, multicenter study involving six Dutch centers established a clinical care pathway for ACAOS.
- Patients undergo comprehensive work-up including CT angiography, ischemia detection, echocardiography, and coronary angiography with intracoronary measurements.
- Follow-up includes CT angiography, ischemia detection, and quality-of-life questionnaires; a registry is maintained for other coronary anomalies.
Main Results:
- Primary outcomes include cardiac death, ACAOS-attributable myocardial ischemia, and re-intervention rates.
- The study evaluates the impact of diagnostic examinations on treatment choices.
- Long-term follow-up data will be collected to assess outcomes.
Conclusions:
- There is a lack of robust evidence for managing coronary anomalies, especially interarterial ACAOS.
- A structured, multicenter care pathway is being implemented to provide an evidence-based strategy for diagnosis and treatment.
- This approach aims to improve the management of patients with anomalous coronary arteries.
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