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Case Reports in Cardiology
Volume 2014 (2014), Article ID 189895, 3 pages
http://dx.doi.org/10.1155/2014/189895
Case Report

Cheating the CHA2DS2-VASc Score: Thromboembolism in Apical Hypertrophic Cardiomyopathy

1Cardiology Department, Hairmyres Hospital, East Kilbride, Glasgow G75 8RG, Scotland
2Cardiology Department, Monklands Hospital, Airdrie, Scotland

Received 23 September 2014; Revised 11 November 2014; Accepted 12 November 2014; Published 20 November 2014

Academic Editor: Yoko Miyasaka

Copyright © 2014 Robin A. P. Weir et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Atrial fibrillation increases the risk of systemic thromboembolism in general and stroke in particular. Not all patients who develop atrial fibrillation are at significantly heightened risk of thromboembolic complications, however, with the development of risk scoring systems aiding clinicians in determining whether formal anticoagulation is mandated. The most commonly used contemporary scoring systems—CHADS2 and CHA2DS2-VASc—provide a reliable means of assessing stroke risk, but certain cardiac conditions are associated with an increased incidence of thromboembolism without impacting on these risk scores. Hypertrophic cardiomyopathy, with its apical variant, is such a condition. We present a case of a patient with apical hypertrophic cardiomyopathy and atrial fibrillation who suffered dire thromboembolic consequences despite a reassuringly low CHA2DS2-VASc score and suggest that this scoring system is modified to incorporate the thromboembolic risk inherent to certain cardiomyopathies irrespective of impairment of left ventricular systolic dysfunction or clinical heart failure.