Conclusions
Fridericia and Framingham correction formulae showed the best rate correction and significantly improved prediction of 30‐day and 1‐year mortality. With current clinical standards, Bazett overestimated the number of patients with potential dangerous QTc prolongation, which could lead to unnecessary safety measurements as withholding the patient of first‐choice medication.
Abbreviations on the EKG tracing:
*** QTcfr = Framingham formula ***
*** QTcF = Fridericia formula ***
QTcb = Bazett Formula (not the best estimate. It underestimates low and overestimates high)
QTch = Hodges formula