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Mean QRS Axis
Definition 1
The mean (average) direction (range -180 degrees to 180 degrees) of the electrical potential generated by ventricular depolarization in a particular plane (usually the frontal plane). (NCI Thesaurus)
Definition 2
The mean (average) direction of the electrical potential generated by ventricular depolarization. (NCI Thesaurus/CDISC)
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