Abstract

ALMEIDA GOMEZ, Javier et al. Prognostic value of factors obtained by non-invasive methods in acute myocardial infarction. Rev cubana med [online]. 2007, vol.46, n.1. ISSN 0034-7523.

A longitudinal and prospective study of 64 infarction patients was conducted by a valorative ergometric test, echocardiogram and Holter before discharge, to evaluate the prognostic role of some factors measured by non-invasive methods in the evolution of the patients with acute myocardial infarction. It was found that 70 % of the dead patients had some alteration in the ST segment during the ergometric test, 100 % presented symptoms at low loads, increase of the arterial pressure under 10 mmHg and high risk variation of ST / HR. Half of them suffered from ventricular arrhitmias. 100 % of the dead had had remodelled VI, whereas 70 % had a restrictive filling pattern. The mean LVEF of the dead was lower than that of the living. The average parietal motility index (PMI) was also correlated to mortality . The heart rate variability (HRV) of the dead was 52.2 ± 8.05 and that of the living patients was 122.74 ± 33.2. The variability of the heart rate ( SDANN ) under 55 ms predicted a higher mortality.

Keywords : Acute myocardial infarction; heart rate variability.