Análisis electrocardiográfico de intervalo tmáxima-tfinal en el infarto agudo de miocardio con elevación del ST / Electrocardiographic analysis of the T peak-T end interval dispersion in acute myocardial infarction with ST-segment elevation
Carmona Puerta, Raimundo; Ercia Arenal, José M; Ramos Ramírez, Ramiro; Padrón Peña, Gustavo; Rodríguez León, Arnaldo; Chávez González, Elibet; Cruz Elizundia, Juan M.
CorSalud
; 2(3)sept. 2010. tab, graf
Artículo
en Español
| CUMED | ID: cum-44369
Introduction and
objectives:
Tpeak-Tend interval dispersion is a new electrocardiographic variable recently associated to the risk of malignant ventricular arrhythmias in Brugada syndrome but it has hardly been studied in the acute myocardial infarction with ST-segment elevation. That is why it was analyzed in this context.Methods:
A cross-sectional study was carried out in which the electrocardiograms of 37 patients with ST-segment elevation myocardial infarctions and other 37 apparently healthy patients (regarding electrocardiographic variables that assess ventricular repolarization) were compared.Results:
Highly significant differences were found (p < 0,001) when comparing patients with myocardial infarction (QT 416,9 ± 42,3; QTc 431,4 ± 36,2) with the healthy patients (QT 441,2 ± 57,4 y QTc 477,6 ± 58,5) and significant differences (p < 0,05) in T peak-T end interval (37,2 ms vs. 21,6 ms). There was a significant correlation between QT and T peak-T end in the inferior and anteroseptal STEMI, which was doubly intense in the anteroseptal localization (r = 0,34 vs. r = 0,80).Conclusions:
T peak-T end interval dispersion was significantly higher in patients who have suffered from acute myocardial infarction with ST-segment elevation, regardless infarction localization(AU)
Biblioteca responsable:
CU425.1
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