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Case Reports
. 2020 Aug 17;12(8):e9801.
doi: 10.7759/cureus.9801.

A Single Coronary Artery Anomaly: Right Coronary Artery as a Branch From the Left Anterior Descending Artery

Mohammed Salih  1 , Osama Abdel-Hafez  2 , Ramzi Ibrahim  1 , Abdul R Halabi  1 , Feras Aloka  1
Affiliations
Case Reports

A Single Coronary Artery Anomaly: Right Coronary Artery as a Branch From the Left Anterior Descending Artery

Mohammed Salih et al. Cureus. .

Abstract

An anomalous origin of the right coronary artery (RCA) from the left anterior descending artery (LAD), also known as a single coronary artery, is an extremely rare finding in clinical practice. It is usually a benign anomaly; however, symptoms are highly dependent on the course that the anomalous RCA takes after branching off of the LAD. We present a case of a patient who had decompensated heart failure and was detected to have a single coronary artery. The patient was treated with guideline-directed medical therapy with notable improvement in clinical status in the following days. Enhanced awareness of congenital cardiac anomalies may help guide management.

Keywords: cardiology.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Chest x-ray showed bilateral pleural effusion greater on the right side with evidence of pulmonary vascular congestion.
Figure 2
Figure 2. Left anterior oblique (LAO) projection: Anomalous origin of the RCA from the mid LAD. The anomalous RCA courses anteriorly across the right ventricular outflow tract in an epicardial fashion into the atrioventricular groove.
RCA, right coronary artery; LAD, left anterior descending artery
Figure 3
Figure 3. Right anterior oblique (RAO) projection: Anomalous origin of the RCA from the mid LAD. The anomalous RCA courses anteriorly across the right ventricular outflow tract in an epicardial fashion into the atrioventricular groove.
RCA, right coronary artery; LAD, left anterior descending artery
Figure 4
Figure 4. Anterior-posterior (AP) cranial projection: Anomalous origin of the RCA from the mid LAD. The anomalous RCA courses anteriorly across the right ventricular outflow tract in an epicardial fashion into the atrioventricular groove.
RCA, right coronary artery; LAD, left anterior descending artery
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