Unipolar thoracic electrocardiography that induces QRS complexes of relative uniformity from male horses |
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Authors: | J C Illera M Illera R L Hamlin |
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Institution: | Physiology Department, Veterinary School, Universidad Complutense, Madrid, Spain. |
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Abstract: | Electrocardiograms were obtained from 100 male crossbred horses. In addition to standard limb leads, leads were taken from 12 points on the thorax. The QRS complexes were categorized into 1 of 8 forms on the basis of configuration and amplitudes of component deflections. Relative uniformity of QRS was determined for each lead, using the percentage of horses that possess a particular configuration. All unipolar thoracic leads, except those coplanar with the frontal plane, and lead aVR had great uniformity, with greater than 80% of the horses with a QRS of similar contour. |
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