© 2016 The Korean Academy of Medical Sciences.
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pISSN 1011-8934 eISSN 1598-6357
Anomalous Middle Cardiac Vein Draining into the Left Atrium
Jihyun Sohn,1 Young Soo Lee,2 Seung Pyo Hong,2 and Sung Hee Mun3
1Department of Cardiology, Kyungpook National University Hospital, Daegu, Korea; 2Department of Cardiology, Catholic University of Daegu, Daegu, Korea; 3Department of Radiology, Catholic University of Daegu, Daegu, Korea
http://dx.doi.org/10.3346/jkms.2016.31.8.1179 • J Korean Med Sci 2016; 31: 1179-1180
A 67-year-old woman was admitted for radiofrequency catheter ablation (RFCA) of paroxysmal atrial fibrillation. She had un- derwent patch closure of atrial septal defect 7 years before. Her arterial blood oxygen saturation level was 94.6% without any
oxygen supplement. Her electrocardiogram, chest X-ray, and echocardiogram were within normal limits. She underwent cardiac computed tomography for the left atrial reconstruction before the RFCA. It revealed abnormal drainage of the middle IMAGES IN THIS ISSUE
Cardiovascular Disorders
Fig. 1. Cardiac computed tomography demonstrates the middle cardiac vein draining into the left atrium (yellow arrows). (A-C) Axial serial scan images of cardiac computed to- mography after contrast dye injection. (D) The 3-dimensional volume rendering image of cardiac computed tomography. (E) The curved planar reformation image of cardiac computed tomography.
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Sohn J, et al. • Anomalous Middle Cardiac Vein Draining into the Left Atrium
1180 http://jkms.org http://dx.doi.org/10.3346/jkms.2016.31.8.1179 cardiac vein into the left atrium (Fig. 1). The other cardiac veins
including the great cardiac vein and small cardiac vein drained into the coronary sinus normally. While she underwent RFCA, the abnormal drainage of the middle cardiac vein was also con- firmed in the CARTO® image (Fig. 2). An anomaly of the cardiac vein has rarely been reported. Previously reported venous anom- aly of the heart was anomaly of the great cardiac vein (1) or to- tally abnormal drainage of the cardiac veins (2). This is a unique case of an isolated anomalous drainage of the middle cardiac vein into the LA without any anomaly of the coronary sinus.
ORCID
Jihyun Sohn http://orcid.org/0000-0001-5543-9633 Young Soo Lee http://orcid.org/0000-0002-8229-8300
Seung Pyo Hong http://orcid.org/0000-0002-0028-9647 Sung Hee Mun http://orcid.org/0000-0002-8700-2513 REFERENCES
1. Akkaya S, Ardalı S, Balcı S, Hazirolan T. Left atrial drainage of the great cardiac vein. J Cardiovasc Comput Tomogr 2015; 9: 225-6.
2. Pizarro G, Castillo JG, Gaztanaga J, Garcia MJ. Images in cardiovascular medicine. Total coronary vein-left atrial drainage. Circulation 2009; 120:
914-7.
Address for Correspondence:
Young Soo Lee, MD
Department of Cardiology, Catholic University of Daegu, 33 Duryugongwon-ro 17-gil, Nam-gu, Daegu 42472, Korea
E-mail: [email protected] Fig. 2. CARTO® images clearly demonstrating the abnormal drainage of the middle cardiac vein into the left atrium (yellow arrows). (A) A 3-dimensional reconstructed image of the left atrium and pulmonary veins using CARTO®. (B) The 3D reconstructed image of both the atrium and pulmonary veins using CARTO®.
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