Rautaharju and Dmitrienko Formulae for QT Interval Correction

This lecture will discuss two newer formulae for QT interval correction, one by Rautaharju and another by Dmitrienko. Various formulae for correction of QT interval have been in use. Logarithmic formulae are:
Bazett’s formula
Fridericia’s formula
Baseline correction
Linear QT interval correction formulae are Framingham formula and Hodges formula. Of the QT correction formulae, Bazett’s formula and Fridericia’s formula were introduced in 1920 (exactly one century back!)