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

doi:10.34961/researchrepository-ul.22598290.v1

deAbreu_2023_Northwest.pdf (1.2 MB)

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

journal contribution

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.