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

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

doi:10.1016/j.jelectrocard.2022.08.011

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

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

TAYS Heart Centre

Research output: Contribution to journal › Article › Scientific › peer-review

1 Citation (Scopus)

917 Downloads (Pure)

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.

Original language	English
Pages (from-to)	101-103
Number of pages	3
Journal	Journal of Electrocardiology
Volume	74
Early online date	6 Sept 2022
DOIs	https://doi.org/10.1016/j.jelectrocard.2022.08.011
Publication status	Published - 2022
Publication type	A1 Journal article-refereed

Keywords

Northwest axis
QRS axis
Tetralogy of Fallot

Publication forum classification

Publication forum level 1

ASJC Scopus subject areas

Cardiology and Cardiovascular Medicine

Access to Document

10.1016/j.jelectrocard.2022.08.011Licence: CC BY

1-s2.0-S0022073622001819-mainFinal published version, 1.17 MBLicence: CC BY

https://urn.fi/URN:NBN:fi:tuni-202209197136Licence: CC BY

Cite this

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title = "Northwest axis in the electrocardiogram — A sign of right ventricular remodeling in tetralogy of Fallot: A case report",

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.",

keywords = "Northwest axis, QRS axis, Tetralogy of Fallot",

author = "Kjell Nikus and Olli Punkka and Raimundo Barbosa-Barros and Rodrigo Daminello-Raimundo and \{de Abreu\}, \{Luiz Carlos\} and P{\'e}rez-Riera, \{Andr{\'e}s Ricardo\}",

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year = "2022",

doi = "10.1016/j.jelectrocard.2022.08.011",

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T2 - A case report

AU - Nikus, Kjell

AU - Punkka, Olli

AU - Barbosa-Barros, Raimundo

AU - Daminello-Raimundo, Rodrigo

AU - de Abreu, Luiz Carlos

AU - Pérez-Riera, Andrés Ricardo

PY - 2022

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N2 - 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.

AB - 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.

KW - Northwest axis

KW - QRS axis

KW - Tetralogy of Fallot

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DO - 10.1016/j.jelectrocard.2022.08.011

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