Hypertrophic cardiomyopathy with paroxysmal atrial fibrillation misdiagnosed as WPW syndrome
10.1186/s42444-021-00033-z
- Author:
Sang‑Hoon SEOL
1
;
Ki‑Hun KIM
;
Jino PARK
;
Yeo‑Jeong SONG
;
Dong‑Kie KIM
;
Doo‑Il KIM
Author Information
1. Division of Cardiology, Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan 48108, Korea
- Publication Type:CASE REPORT
- From:International Journal of Arrhythmia
2021;22(2):5-
- CountryRepublic of Korea
- Language:English
-
Abstract:
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.
