%0 Case Reports
%T Northwest axis in the electrocardiogram - A sign of right ventricular remodeling in tetralogy of Fallot. A case report.
%A Nikus K
%A Punkka O
%A Barbosa-Barros R
%A Daminello-Raimundo R
%A de Abreu LC
%A Pérez-Riera AR
%J J Electrocardiol
%V 74
%N 0
%D Sep-Oct 2022
%M 36088787
%F 1.38
%R 10.1016/j.jelectrocard.2022.08.011
%X 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.