2016 ACVIM Forum Research Abstract Program

A total of 44 puppies representing 20 breeds were included in this study. Minimum, average, and maximum Holter heart rates were higher in puppies compared to healthy adult dogs. The number of supraventricular complexes seen in puppies were less than in healthy adult dogs. The range of ventricular complexes in puppies were higher than in healthy adult dogs. Minimum and average Holter heart rate decreased with increasing age while maximum Holter heart rate was not correlated with age. No correlation between minimum, average, and maximum Holter heart rates and weight was appreciated. There was a statistically significant difference between maximum Holter heart rate and different breed classifications by size (small versus medium versus large versus giant breed). No correlation between minimum and average Holter heart rate and breed classifications was identified in healthy puppies.