Intervalo QT


Corrección Intervalo QT Corregido Fórmulas
QTc Bazett[1]: QTc=QT/(RR(1/2))
QTc Fridericia[2]: QTc=QT/(RR(1/3))
QTc Framingham[3] QTc=QT+0,154*(1-RR)
QTc Hodges[4]: QTc=QT+0,00175*(FC-60)
RR' (en segundos) = 60 / FC (en Latidos por minuto)

Referencias Bibliográficas:
[1] Bazett HC. An analysis of the time-relations of electrocardiograms. Heart 1920; 7:353-370.
[2] Fridericia LS. Die Systolendauer im Elektrokardiogramm bei normalen Menschen und bei Herzkranken. Acta Medica Scandinavica 1921; 53:469–486.
[3] Sagie A et al. An improved method for adjusting the QT interval for heart rate (the Framingham Heart Study). Am J Cardiol 1992; 70:797–801.
[4] Hodges M et al. Bazett's QT correction reviewed. Evidence that a linear QT correction for heart is better. J Am Coll Cardiol 1983; 1:694.