Evaluation of P wave axis in distinguishing anatomical site of atrial septal defect.

Abstract

It has been previously proposed that a method of distinguishing sinus venosus atrial septal defects from ostium secundum atrial septal defects is a leftward axis deviation (less than +300) of the P waves on the electrocardiograms of patients with sinus venosus defects. The electrocardiograms of i5o patients with surgically corrected atrial septal defects were reviewed to test this proposition. The preoperative P wave axis was not useful in predicting the anatomical location of atrial septal defects.

Effect of Abdominal Respiration on the Electrical Axis of ECG in Young Adults

“…2009년 심전도 전기축은 질병에 의해 영향을 받아서 변화하는 것으 로 알려져 있다 [22]. P전기축이 좌축 편위(각이 작아짐)가 되면 심방이나 대정맥에 문제가 생긴 것으로 판단한다 [26]. P전기 축이 보통 +0°~+90°사이일 때 정상으로 판별하고, 성인에서 +45°~+64°사이에 분포하는 것이 가장 좋다 [25].…”