Université de Fribourg

QT interval shortening after bariatric surgery depends on the applied heart rate correction equation

Grasser, Erik K. ; Ernst, Barbara ; Thurnheer, Martin ; Schultes, Bernd

In: Obesity Surgery, 2017, vol. 27, no. 4, p. 973–982

A shortening of electrocardiographic QT interval has been observed in obese subjects after weight loss, but previous results may have been biased by inappropriate heart rate (HR) correction.Methods Electrocardiography (ECG) recordings of 49 (35 females) severely obese patients before and 12 months after Roux-en-Y gastric bypass (RYGB) surgery were analysed. QT interval (QTc) was calculated...