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[Electrocardiographic recording of long duration (Holter) of 24 hours during idiopathic cardiomyopathy of the peripartum].

The idiopathic myocardiopathy of the peripartum (IMPP) is a frequent disease in the Soudano-Sahelian zone of Africa whose evolution is loaded with many complications hemodynamic, thrombo-embolic and rhythmic. The prevalence and the meaning of the rhythm disorders are unknown. The aims of this prospective study are to measure and to describe the prevalence of the anomalies observed in Holter ECG of 24 hours. It's about a description cross-sectional study realized at the Cardiology Department (CHU Dakar) and 19 patients with IMPP were included, from October 2000 to July 2002. A recording ECG of 24 hours (Holter) was realized on all the patients. The average age was 29.4+/-6.9 years with a low socio-economic level (100%). The diagnosis of IMPP done before childbirth in 4 cases (21%) and the post partum on 15 patients (78.9%). The dyspnea was constant, the chest pain in 12 cases (63.1%) and palpitations in 8 cases (42%). The average rate of hemoglobin was of 10.85+/-2.05 g/dL. The standard electrocardiogram recorded a sinusal tachycardia (68.4%), a cavitary hypertrophy (78.8%), and disorders of the repolarization (47.3%). The cardiac echo-Doppler noted a cavitary dilatation (84.2%), a constant alteration of the left ventricular systolic function with a fraction of average ejection of 29.7+/-10.3%. The anatomy of the valves was normal. The recording Holter ECG of 24 hours recorded a sinusal tachycardia in 17 cases (89.4%), ventricular extrasystoles on 7 patients (36.8%), 4 cases of ventricular tachycardia non-sustained and double ventricular extrasystole on 1 patient, auricular extrasystoles in 4 cases (21%) and 1 case of auriculo-ventricular block of the first degree. The study of heart rate variability founded a mean value of 106 ms.