Establishment of database on electrocardiographic parameters of healthy dogs

Abstract

The objective of this study aimed at establishing a database on electrocardiographic parameters of the healthy dogs, evaluating the influence of sex and age to electrocardiographic (ECG) parameters. The studied result showed that there was not different on the ECG parameters between two sexes. The influence of dog age to electrocardiographic parameters included: Heart rate decreased in the group at ≥8 months old compared to the group at 3–8 months old. QRS duration increased in the group at 3-8 months old compared to the group at ≥8 months old (the male dogs). QRS duration increased in the group at <3 months old compared to the group at ≥8 months old (the female dogs). The PR interval increased in the group at 3–8 months old compared to the group at ≥ 8 months old. Particularly for the female dogs, PR interval also increased in the group at <3 months old compared to the group at ≥8 months old. Ratio T/R in the group at < 3 months old was higher than that of the group at ≥8 months old. Particularly for female dogs, ratio T/R in the group at <3 months old was also higher than that of the group at 3-8 months old.