Mobitz type 1 second degree heart block in deferverscence phase of dengue fever
AH ABD SAMAT and H EMBONG
Department of Emergency Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
ABSTRACT
Rhythm disturbances are rare but potentially fatal cardiac manifestations of dengue fever. However many are not recognised and not reported. The diversity of the clinical presentations throws a great challenge in the diagnosis of dengue myocarditis. Manifestations vary from the common uncomplicated febrile illness to the less common complete heart block with cardiogenic shock. We report the case of a 28-year-old lady who developed uncomplicated 2nd degree Mobitz type 1 heart block during the deferversence phase of a dengue illness. Although rare, 2nd degree Mobitz type 1 heart block has been reported in dengue fever. Therefore, this case emphasizes that ECG is a useful tool in the management of dengue. Any changes in vital signs especially the heart rate, should prompt the clinicians to look for possible underlying cause because this may be the early indication of cardiac arrhythmia which occurs in dengue.
Keywords: Dengue fever, arrhythmias, bradycardia, Wenckebach phenomenon
Correspondence author: AH ABDUL SAMAT, Department of Emergency Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, 56000 Kuala Lumpur, Malaysia.
Tel: 006 03 91455606
E mail: azlanhelmy2@gmail.com
Brunei Int Med J. 2014; 10 (4): 223-226