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Vol. 33. Núm. 11.
Páginas 747-749 (novembro 2014)
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Vol. 33. Núm. 11.
Páginas 747-749 (novembro 2014)
Image in Cardiology
Open Access
Collateral damage from a coronary blush
Danos colaterais com blush coronário
Visitas
5452
Panagiotis Koudounisa, Jessica Webba, Camila Cabrala, Natali Chungb, Ronak Rajania,
Autor para correspondência
Ronak.Rajani@gstt.nhs.uk

Corresponding author.
a Department of Cardiology, Guy's and St Thomas’ Hospitals, London SE1 7EH, United Kingdom
b Department of Adult Congenital Heart Disease, Guy's and St Thomas’ Hospitals Trust, SE1 7EH, United Kingdom
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A 28-year-old man presented with a five-hour history of central chest pain and dyspnea. His 12-lead electrocardiogram demonstrated biphasic T waves in leads V1–V4, and T-wave inversion in lead AVL (Figure 1). He was accordingly treated for acute coronary syndrome and referred for coronary computed tomographic angiography (CTA), which showed unobstructed coronary arteries but also an additional vessel that represented a coronary artery fistula (CAF) (Figure 2a–d). In addition there was a bicuspid aortic valve (Figure 2e), concomitant aortopathy (Figure 2f) and a dilated pulmonary artery. The patient underwent surgical ligation of the CAF and was discharged five days later following an uneventful recovery.

Figure 1.

12-lead electrocardiogram showing T-wave inversion in leads AVL and V1–V4.

(1.27MB).
Figure 2.

(a–c) Three-dimensional volume rendered cardiac computed tomography images showing the relationship of the coronary artery fistula (arrow) to the right ventricular outflow tract, aorta and main pulmonary artery in anterior (a), anterolateral (b) and lateral (c) planes; (d) curved multiplanar reformatted cardiac computed tomographic image showing the course of the coronary artery fistula anterior to the right ventricular outflow tract; (e) multiplanar reformatted cardiac computed tomographic image showing the presence of a non-calcified bicuspid aortic valve; (f) curved multiplanar reformatted cardiac computed tomographic image showing the presence of a concomitant aortopathy. Ao: aorta; LAD: left anterior descending coronary artery; LV: left ventricle; MPA: main pulmonary artery; RVOT: right ventricular outflow tract.

(0.55MB).

Coronary artery fistulae are usually congenital in origin and account for approximately 0.2–0.4% of all congenital cardiac abnormalities.1 Although commonly asymptomatic, as the fistula progressively enlarges patients may present late in life with dyspnea, fatigue, stroke and endocarditis. Myocardial ischemia may also occur as a result of coronary steal, whereby coronary flow bypasses the myocardial capillary bed in preference for the low-pressure system of the fistula. CAFs in asymptomatic individuals should undergo careful periodic evaluation. In symptomatic individuals, surgical ligation and transcatheter embolization have been shown to be effective therapies.2 The current case firstly demonstrates a rare cause of acute coronary syndrome precipitated by a CAF. Secondly it shows the value of coronary CTA in delineating a CAF and in detecting additional congenital abnormalities. Finally it raises the proposition that CAF may be a coronary anomaly associated with bicuspid aortic valve.

Ethical disclosuresProtection of human and animal subjects

The authors declare that no experiments were performed on humans or animals for this study.

Confidentiality of data

The authors declare that they have followed the protocols of their work center on the publication of patient data.

Right to privacy and informed consent

The authors have obtained the written informed consent of the patients or subjects mentioned in the article. The corresponding author is in possession of this document.

Conflicts of interest

The authors have no conflicts of interest to declare.

References
[1]
N. Yener, A. Yener.
Another cause of chest pain: coronary artery-pulmonary artery fistulae.
Int J Angiol, 10 (2001), pp. 85-87
[2]
L.R. Armsby, J.F. Keane, M.C. Sherwood, et al.
Management of coronary artery fistulae – patient selection and results of transcatheter closure.
J Am Coll Cardiol, 39 (2002), pp. 1026-1032
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