Etude de la variabilite sinusale dans le post infarctus

ABSTRACT

Decreased heart rate variability after myocardial infarction [MI] was demonstrated to be highly correlated with cardiac sudden death. The assessment of HRVA was performed in 100 consecutive patients hospitalized for acute myocardial infarction [AMI] in Tunis Military Hospital between September 94 and july 96 with a mean follow up of 28 months. HRVA was evaluated within 8 to 10 days after hospitalization. A group of 62 patients without AMI was used as control group. The comparison of components of HRVA in time and frequency dmain demonstrated significant differences between the two groups. Significant differences were also seen between the subgroup of patients who died suddenly during follow up and the subgroup of survivors. The assessment of HRVA must be one of the non invasive prognostic variables after MI to evaluate the risk of cardiac sudden death