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

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posted on 2023-04-13, 08:51 authored by Kjell Nikus, Olli Punkka, Raimundo Barbosa-Barros, Rodrigo Daminello-Raimundo, Luiz Carlos DeAbreuLuiz Carlos DeAbreu, Andrés Ricardo Pérez-Riera

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. 



Journal of Electrocardiology 74 pp. 101-103



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