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Right axis deviation: Wikis


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A very slight Right Axis Deviation, possibly due to height and not a posterior block, approximately 110° from lead I+.

Right Axis Deviation (RAD) is a heart condition where the electrical conduction of the heart is greater than +105 degrees or between -90 degrees and +180 degrees (may be called Indeterminate) or more often extreme Right Axis Deviation. The degrees may be determined by a 12-lead ECG (EKG=German).

RAD is common in taller individuals, as the apex of the heart generally moves lower into the thorax. This can also be seen in individuals with Situs Inversus, a medical condition where the visceral organs are flipped across a vertical axis. More commonly, however, a severe RAD is indicative of a posterior block.

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