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QT Correction Formulas Compared to The Rule of Thumb ("Half the RR")

Dr. Smith's ECG Blog

They measured QTc while patients were in Afib and then again after conversion, when they were in sinus rhythm. They found that Bazetts formula overestimated QTc in Afib while Fridericias formula was the most accurate. The RR interval was also a 10 second average. Malik et al.

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ACC/AHA Release Updated 2023 Guidelines for Atrial Fibrillation

Cardiometabolic Health Congress

AF is associated with an increased risk of death as well as multiple adverse outcomes, including stroke, cognitive impairment or dementia, myocardial infarction, sudden cardiac death, heart failure (HF), chronic kidney disease (CKD), and peripheral artery disease (PAD). million.