Abstract
Coronary artery anomalies are seen in about 1.3% of patients undergoing coronary angiography. However, the dual type of left anterior descending (LAD) artery is a rare form of coronary artery anomaly. There are four types of dual LAD; type IV describes the anomaly of a rudimentary LAD artery terminating in the mid-portion of the anterior interventricular sulcus, and the presence of another LAD originating from the right coronary artery and continuing to the anterior interventricular sulcus.
Highlights
There are four types of dual left anterior descending (LAD); type IV describes the anomaly of a rudimentary LAD artery terminating in the mid-portion of the anterior interventricular sulcus, and the presence of another LAD originating from the right coronary artery and continuing to the anterior interventricular sulcus
We present a case of type IV dual LAD
Coronary angiography revealed a coronary artery anomaly of type IV dual LAD with a short LAD, which originated from the left main coronary artery (LMCA) and terminated in the mid-portion of the anterior interventricular sulcus (AIVS)
Summary
Coronary artery anomalies are seen in about 1.3% of patients undergoing coronary angiography. There are four types of dual LAD; type IV describes the anomaly of a rudimentary LAD artery terminating in the mid-portion of the anterior interventricular sulcus, and the presence of another LAD originating from the right coronary artery and continuing to the anterior interventricular sulcus. Congenital anomalies such as origin, course and distribution of coronary arteries occur in 0.64 to 1.3% of patients undergoing coronary angiography. We present a case of type IV dual LAD
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