In this scenario, the QRS axis could fall between 0 and , which is within normal limits. To further distinguish normal from left axis deviation in this setting, look at lead II. If lead II is downward negative , then the axis is more towards , and left axis deviation is present. The causes of LAD are listed below. The causes of RAD are listed below. Back to Healio. ECG Basics Save.
Determining Axis The axis of the ECG is the major direction of the overall electrical activity of the heart. Left axis deviation was associated with a higher risk of a composite of all-cause death and MACE in patients without conduction block. All relevant data are within the manuscript.
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Download references. You can also search for this author in PubMed Google Scholar. Correspondence to Takao Kato. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material.
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