High-degree Atrioventricular Block May be Associated with Basedow's Disease: A Case Report
Published: 2020-12-12
Page: 126-129
Issue: 2020 - Volume 2 [Issue 1]
N. Mahoungou- Mackonia *
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
Harouna Seydou
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
Brahim Nassour
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
Njei Malick
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
Fadoul Adam
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
Ovaga Esther
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
I. Nouamou
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
S. Arous
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
G. Benouna
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
A. Drighil
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
L. Azzouzi
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
R. Habbal
Department of Cardiology, IBN ROCHD University Hospital, Casablanca, Morocco.
*Author to whom correspondence should be addressed.
Abstract
It has been reported that hyperthyroidism could be the cause of arrhythmias at the ventricular and supraventricular levels, while conduction disorders are very rarely described. We report through our observation the case of a 45-year-old patient diagnosed with atrioventricular block (AVB) who, after exploration, showed Basedow’s Disease. The patient was put on Carbimazole 40mg divided in two doses, which allowed to observe a complete regression of the AVB at the end of 2 months of treatment by passing by an alternation AVB 2-th degree mobitz 1 to mobitz 2 and a progressive improvement of the thyroid hormones until obtaining euthyroidism. Thyrotoxic myocarditis is the most likely cause of AVB, since in our patient no classical cause of AVB was found and the conductive disorder was evolving in parallel with hyperthyroidism, which allowed us to retain the diagnosis.
Keywords: High-degree atrioventricular block, basedow’s disease, hyperthyroidism.