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ORIGINAL ARTICLE
Year : 2000  |  Volume : 3  |  Issue : 1  |  Page : 16-20

Electrical axis of the heart in healthy Nigerians


1 Departments of *Physiology, Usmanu Danfodiyo University and Usmanu Danfodiyo University Teaching Hospital , Sokoto, Nigeria
2 Departments of Paediatrics , Usmanu Danfodiyo University and Usmanu Danfodiyo University Teaching Hospital , Sokoto, Nigeria
3 Departments of Community Health , Usmanu Danfodiyo University and Usmanu Danfodiyo University Teaching Hospital , Sokoto, Nigeria

Correspondence Address:
DBU Edemeka
Departments of *Physiology, Usmanu Danfodiyo University and Usmanu Danfodiyo University Teaching Hospital , Sokoto
Nigeria
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Analysis of the electrical axis of the heart (p-wave axis, T-axis, and QRS axis) using the triaxial reference system and the hexaxial reference system was carried out in 880 normal Nigerians. Results show that the values of the electrical axis of the heart obtained by the triaxial reference ,system was significantly greater than those from hexaxial reference method (P < O.05). wave axis exhibited no sex variation, but there was progressive rightward shift with age. T-wave axis showed no sex variation. There was progressive leftward displacement ofT-axis with increasing age. Q-wave axis showed no sex differences but there was leftward shift with increasing age. to the Caucasian, Nigerian subject have a more leftward orientation of the mean frontal QRS. I 0.27% our subject met the criteria for left axis deviation while 0.76% met the criteria for right axis deviation.


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