Aspects épidémiocliniques des blocs auriculo-ventriculaires vus aux services de Cardiologie et USIC du CHU Befelatanana d’Antananarivo Epidemioclinical aspects of atrioventricular blocks seen in the services of Cardiology and USIC, CHU Befelatanana of Antananarivo

Abstract

Aims. – To establish the epidemiological and clinical aspects of atrioventricular block (AVB).

Patients and method. – We have realised a descriptive retrospective study during 32 months from 1 January 2013 to 31 August 2015.

Results. – The overall prevalence of AVB was 2.43%. The average age of our patients was 61.38 years old with extremes of 17 and 89. Men and the elder were the most affected. Hypertension was the most frequent cardiovascular risk factors. The circumstance of discovery was dominated by dyspnea. Bradycardia only affected 35% of patients. Signs of heart failure were present in 57% of cases. The majority of patients had a secondary AVB due to a hypertensive heart disease.

Conclusion. – Atrioventricular block is a reality in cardiology practice in Madagascar. Taking care of hypertension could reduce its prevalence. Indeed, prevention should be intensified due to the cost of the pacemaker, still expensive for the majority of Malagasy people.