Hexaxial reference system for frontal plane cardiac vectors in buffaloes Bubalus bubalis
Sobti, V.K.; Kumar, R.; Kohli, R.N.
Indian Journal of Experimental Biology 19(10): 935-938
1981
ISSN/ISBN: 0019-5189 PMID: 7309141 Document Number: 182025
A hexaxial reference system was framed with 3 bipolar and 3 augumented unipolar leads to evaluate frontal plane P, mean QRS and T vectors in 22 normal buffaloes. The P vector was generally directed downward and leftward while mean QRS vector was upward and rightward. The T vectors had the same orientation as means QRS vector in 40% of the buffaloes while the same was in opposite direction in 50% of the animals. Individual variations in frontal plane were less than those reported in the horizontal plane. The orientation of these cardiac vectors in this plane differed appreciably from that of other species. This significant species difference must be considered in any clinical or research applications of vectorcardiography in buffaloes. Since the anatomical position of the heart in cattle and buffaloes is similar, these findings of the frontal plane vectorcardiography should be applicable to both species.