Right Coronary Artery Originating From Mid Left Anterior Descending Artery: A Rare Variant of Anomalous Right Coronary Artery Detected on CT Coronary Angiography.
DOI:
https://doi.org/10.32896/cvns.v4n3.21-25Keywords:
Single Coronary Artery, Anomalous Right Coronary Artery, CT Coronary Angiography, ImagingAbstract
Background: A single coronary artery (SCA) is a rare anomaly encountered using conventional coronary angiography. A right coronary artery (RCA) originating from a left anterior descending artery (LAD) is a rare subtype of SCA. Only a few cases are described in published literature.
Case presentation: We described this anomaly in a 55-year-old male who presented with angina pectoris. The anomalous RCA was suspected by conventional coronary angiogram and was confirmed by computed tomography (CT) coronary angiography. Using CT, we demonstrated the course of the abnormal vessel and its relation to the main vessel. We also detected the presence of plaque, which caused luminal stenosis of the proximal LAD, which may cause global ischaemia.
Conclusion: We concluded that although conventional coronary angiography is an important diagnostic method, new non-invasive methods such as CT coronary angiography can be a better screening tool to detect and characterise coronary anomalies.
Electronic Supplementary Materials
Supplementary Material 1: Coronary angiogram demonstrates anomalous RCA originating from LAD.
Supplementary Material 2: CTA coronary shows anomalous RCA originates from the mid-portion of LAD.
References
Villa AD, Sammut E, Nair A, Rajani R, Bonamini R, Chiribiri A. Coronary artery anomalies overview: The normal and the abnormal. World J. Radiol. 2016 Jun;8(6):537.
Yurtdas M, Gulen O. Anomalous origin of the right coronary artery from the left anterior descending artery: review of the literature. Cardiol. J. 2012 Mar;19(2):122-129.
Turkmen S, Yolcu M, Sertcelik A, Ipek E, Dokumaci B, Batyraliev T. Single coronary artery incidence in 215,140 patients undergoing coronary angiography. Folia Morphol. 2014 Nov;73(4):469-474.
Erol C, Seker M. Coronary Artery Anomalies: The Prevalence of Origination, Course, and Termination Anomalies of Coronary Arteries Detected by 64-Detector Computed Tomography Coronary Angiography. JCAT. 2011 Sep;35(5):618-624.
Ghadri JR, Kazakauskaite E, Braunschweig S, Burger IA, Frank M, Fiechter M, et al. Congenital coronary anomalies detected by coronary computed tomography compared to invasive coronary angiography. BMC Cardiovasc. Disord. 2014 Dec;14(1):81.
Grani C, Buechel RR, Kaufmann PA, Kwong RY. Multimodality Imaging in Individuals With Anomalous Coronary Arteries. JACC Cardiovasc. Imaging. 2017;10(4):471-481.
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
