Northwest axis in the electrocardiogram — A sign of right ventricular remodeling in tetralogy of Fallot. A case report

Nikus, Kjell; Punkka, Olli; Barbosa-Barros, Raimundo; Daminello-Raimundo, Rodrigo; DeAbreu, Luiz Carlos; Ricardo Pérez-Riera, Andrés

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Northwest axis in the electrocardiogram — A sign of right ventricular remodeling in tetralogy of Fallot. A case report

Nikus, Kjell; Punkka, Olli; Barbosa-Barros, Raimundo; Daminello-Raimundo, Rodrigo; DeAbreu, Luiz Carlos; Ricardo Pérez-Riera, Andrés

Date

2022

Abstract

The typical ECG changes in tetralogy of Fallot are right axis deviation, large R waves in the anterior precordial leads and large S waves in the lateral precordial leads. We present a patient with extreme deviation of the frontal QRS axis between − 90◦ and ± 180◦. The child underwent open heart surgery twice before one year of age and a third time at nine years of age. The axis change persisted into adulthood.

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Elsevier

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Journal of Electrocardiology 74 pp. 101-103

Northwest axis in the electrocardiogram — A sign of right ventricular remodeling in tetralogy of Fallot. A case report

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