Distinctive Electrocardiographic Features in African Americans Diagnosed with Takotsubo Cardiomyopathy

Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc
Emiliana FrancoVincent M Figueredo

Abstract

Takotsubo cardiomyopathy (TC) can resemble acute anterior ST-elevation myocardial infarction. Most studies have examined TC in Asians and Caucasians (non-African Americans [AA]), while very few cases have been reported in AA. We aimed to assess the electrocardiographic features of TC in AA patients and compare them to non-AA TC patients. We retrospectively compared electrocardiograms of 52 AA and 47 non-AA patients diagnosed with TC. All patients met the modified Mayo Clinic criteria for the diagnosis of TC. Information collected included PR interval, QRS duration and amplitude, QT interval in milliseconds (msec) adjusted for heart rate (QTc), ST-segment deviation at the J point in limb and precordial leads (≥1 mm), ST elevation (≥1 mm), and T-wave inversion (≥0.5 mm). T-wave inversion was more prevalent on presentation among AA patients (82% vs 48% in non-AA; P < 0.01), whereas ST depression was more common among non-AA (21% vs 7% in AA; P = 0.05). T-wave inversions in AA patients were frequent in both limb and precordial leads, whereas T-wave inversions in non-AA were limited to precordial leads. The average QTc upon presentation in AA was longer than non-AA (491 msec in AA vs 456 msec in non-AA; P < 0.01) as was the maximum ...Continue Reading

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Citations

Jun 3, 2016·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Federico Guerra, Alessandro Capucci
Jun 3, 2016·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·John E Madias
Dec 23, 2016·Expert Review of Cardiovascular Therapy·Federico GuerraAlessandro Capucci
May 25, 2021·Acta Cardiologica·Gabriel LaurenceGuédès Antoine

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