[Acute rheumatic carditis in Ivory Coast: changes in prevalence during the decade 2000-2009]

Rheumatic fever and acute rheumatic carditis (ARC), though now rare in developed countries, are the main cause of acquired heart disease in children and young adults and remain endemic in developing countries. This study aims to establish the current prevalence of ARC in Ivory Coast.

A cross-sectional retrospective study was performed between January 2000 and December 2009 in the pediatric wards of the three university hospitals in Abidjan and in the Institute of Cardiology of Abidjan. It included all patients whose final diagnosis was ARC.

There were 126 patients of which 57.1% were female. The mean age was 15 ± 6.7 years (range: 4 to 28 years). The average annual prevalence was 12.6 cases, with two peaks observed during the years 2004 (27 cases) and 2005 (20 cases). The hospital prevalence of ARC in the 10-year period was 1.1‰ which is less than in previous decades. The principal presentation leading to discovery of the ARC was heart failure (68.9%). This symptom was due to significant valvular regurgitation with dilatation of the cardiac chambers observed in 65.9%. Mitral regurgitation was the main lesion observed (87.3%). Apart from the cases of isolated pericarditis and three cases of mild mitral regurgitation, all other patients were suffering from valvular lesions as a result of previous rheumatic fever.

A decrease in the hospital prevalence of ARC was observed. However the cases that were seen were diagnosed late and had a tendency to be severe.