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Abstract
Mokhber Dezfouli, M.R., Fakor, S., Bahari, A.A., Alidadi, N. and Rezakhani, A. 2006. Electrocardiographic parameters of the Kurd horse using base apex lead. J. Appl. Anim. Res., 30: 89–92.
Forty five normal Kurd horses (18 females, 27 males; 6 months to 10 years) were used to determine the electrocardiographic parameters of base apex lead. Wandering pacemaker (6%) and sinus arrhythmia (12%) were two physiological irregularities observed. Heart rate was 37.87±5.06/min and duration of the P, QRS, T, P- R and Q-T were 0.130±0.017, 0.128±0.014, 0.163±0.040, 0.288±0.041 and 0.486±0.047 seconds, respectively. Amplitudes were 0. 384±0.047,0.058±0.047, 0.375±0.312, 2.152±0.669 and −0.120±0.77 mV for the P, Q, R, S and T waves. All the P waves had positive direction and 83.33% were bifid configuration. No differences were found among the sex and age groups (P<0.05). It is concluded that the base apex lead is a suitable lead for ECG recording for cardiac arrhythmias and measuring ECG amplitudes and durations.