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Anomalous origin and course of coronary arteries in adults: identification and improved imaging utilizing
N S Gaither1, K M Rogan, K Stajduhar
1Cardiology Service, Walter Reed Army Medical Center, Washington, DC 20307-5001.
Insights
Transesophageal echocardiography (TEE) effectively identifies anomalous coronary arteries, surpassing transthoracic echocardiography (TTE). This advanced imaging technique aids in diagnosing potentially life-threatening coronary artery anomalies.
Area of Science:
- Cardiology
- Medical Imaging
- Diagnostic Techniques
Background:
- Anomalous origin of coronary arteries is a rare but significant condition.
- These anomalies can lead to serious cardiac events like myocardial ischemia and sudden death.
- Conventional diagnostic methods may struggle to fully delineate the course of these anomalous vessels.
Observation:
- This study investigated the utility of transesophageal echocardiography (TEE) in diagnosing anomalous coronary arteries.
- Five adult patients with anomalous coronary artery origins were evaluated using TEE and coronary angiography.
- Transthoracic echocardiography (TTE) was also performed for comparison in four patients.
Findings:
- TEE successfully visualized anomalous coronary ostia in 4 out of 5 patients, while TTE visualized none.
- Proximal segments of anomalous coronary vessels were identified in all 5 patients by TEE, compared to 2 out of 4 by TTE.
- TEE provided superior diagnostic image quality compared to TTE.
Implications:
- TEE is a valuable tool for the echocardiographic identification and diagnosis of anomalous coronary arteries.
- TEE demonstrates superiority over TTE in evaluating these anomalies in adult patients.
- Improved diagnostic capabilities can lead to better management of patients with coronary artery abnormalities.
Abstract:
Anomalous origin of a coronary artery is rare, but may represent a clinically significant abnormality, since some anomalies are associated with myocardial ischemia, infarction, and sudden death. Diagnosis may elude routine screening procedures, and even when an anomalous vessel is identified angiographically, it may be difficult to delineate its true course on the basis of angiography alone. The purpose of this study was to determine whether transesophageal echocardiography (TEE) is of value in making the diagnosis and outlining the course of anomalous coronary arteries. Five adult patients with anomalous origin of a coronary artery were studied by monoplane TEE and selective coronary angiography. Transthoracic echocardiography (TTE) was also performed in four of these five patients. Anomalous coronary ostia were visualized in four of five patients utilizing TEE, but in none of four patients by TTE. A proximal segment of the anomalous coronary vessel was identified in all five patients by TEE, and in only two of four patients by TTE. TEE images were consistently of superior diagnostic quality. TEE is a valuable tool for the echocardiographic identification of anomalous coronary arteries, and is superior to TTE in adult patients.