Louis Fridericia
Louis Sigurd Fridericia (1881-1947) was a Danish physician. Eponymous term - Fridericia's formula: QT interval duration related to the cube root of the RR
Tag QT Interval
Fridericia Formula
Fridericia Formula for calculating the QT interval on an (ECG) according to heart rate, described in 1920. Louis Sigurd Fridericia (1881-1947)
Bazett formula
Bazett formula 'corrects' the measured QT interval to a value (QTc) attributable to a heart rate of 60 bpm. Thus providing a QT interval value that a particular patient would theoretically have if their heart rate was 60 beats/min
ECG Case 135
A single agent overdose causing AV blockade, QRS widening, and QT prolongation.... but reports of death only if QRS > 200ms. Which medication is this?
Drugs Causing QT Prolongation
Drugs associated with QT Prolongation, QTc prolongation including Antipsychotics, antiarrhythmics, antidepressants, and antihistamines
QT Interval
QT interval is the time from the start of the Q wave to the end of the T wave, time taken for ventricular depolarisation and repolarisation