BackgroundThis study aimed to assess the correlation of natriuretic neuropeptides (NT-ProANP) with the left ventricular ejection fraction (LVEF) in patients with acute myocardial (AMI). Materials and MethodsThis case-control study composed of 120 patients was recruited from the cardiac center in Babylon, Iraq. The plasma levels of NT-ProANP and echocardiographic measure of the left ventricle ejection fraction percentage (LVEF%) for both patients and controls as well as demographic data were taken. ResultsThe mean ages were 61.9 ± 13.2 and 33.1 ± 8.3 years for patients and control, respectively, 80.8% of the candidates were male. The differences in NT-ProANP serum levels between AMI patients and controls were highly significant p-0.001. There was a good diagnostic ability of NT-ProANP to predict patients with AMI from the healthy subjects by ROC-curve analysis: AUC=0.957, sensitivity=0.961, specificity=0.962, 95%CI=0.927 -0.987, and p>0.05. Whereas, there was a poor diagnostic performance of NT-ProANP to predict LVEF%: AUC=0.438, sensitiv-ity=0.438, specificity=0.519, 95%CI=0.285 -0.598, and p>0.05. Serum concentrations of NT-ProANP showed no significant correlation with the measures of left ventricular EF%, age, and BMI among AMI patients. The serum levels of NT-ProANP revealed no significant variations between AMI patients with low and those with preserved LV functions ConclusionThe study suggests that the measurement of NT-ProANP was not correlated to LVEF%, although its levels were significantly higher among patients with AMI compared to the healthy controls.
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