QTc interval on 24-hour holter monitor: To trust or not to trust?
Mhd Khalil Tamr AghaGhina FakhriMohamed AhmedOmar El SedawyBernard Abi SalehFadi BitarMariam T ArabiPublished in: Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc (2021)
QTc measured during Holter ECG reached a high specificity regardless of RR interval using the Fridericia and during the longest and the average RR interval for the Bazett formula. The consistently low sensitivity reveals that Holter ECG should not be used to rule out prolonged QT.