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KMID : 1011920210220010005
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International Journal of Arrhythmia
2021 Volume.22 No. 1 p.5 ~ p.5
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Hypertrophic cardiomyopathy with paroxysmal atrial fibrillation misdiagnosed as WPW syndrome
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Seol Sang-Hoon
Kim Ki-Hun
Park Ji-No
Song Yeo-Jeong
Kim Dong-Kie
Kim Doo-Il
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Abstract
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Hypertrophic cardiomyopathy (HCM) is associated with an increased incidence of Wolff?Parkinson?White (WPW) syndrome and atrial fibrillation. However, a delta-like wide QRS can be observed in the hypertrophied myocardium. When considering the rarity of the paraseptal bypass tract (BT), the normal QRS axis suggests a higher possibility of HCM origin. Otherwise, there is no known electrocardiographic clue indicating a wide QRS differentiation between HCM and WPW syndrome. Moreover, the atriofascicular, nodofascicular/ventricular or fasciculoventricular BT should be differentiated. In this case, atrioventricular conduction system incidental injury revealed a wide QRS origin from the HCM, but this method should be avoided except in some selected cases.
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KEYWORD
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Atrial fibrillation, Hypertrophic cardiomyopathy, WPW syndrome
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