title: Use of ambulatory electrocardiography for detection of ventricular premature complexes in healthy dogs.
abstract: OBJECTIVE
  To evaluate the use of 24-hour ambulatory electrocardiography (AECG) for the detection of ventricular premature complexes (VPC) in healthy dogs.
  
  
  METHODS
  Case series.
  
  
  METHODS
  50 healthy mature dogs.
  
  
  METHODS
  A 24-hour AECG was performed on each dog and evaluated for the presence of VPC.
  
  
  RESULTS
  Fifty dogs weighing between 18.2 to 40.9 kg (40 and 90 lb) representing 13 breeds were evaluated; there were 4 sexually intact females, 21 spayed females, 4 sexually intact males, and 21 castrated males. Ages ranged from 1 to 12 years. Thirty-four dogs had no VPC; 16 dogs had between 1 and 24 VPC. The grade of arrhythmia ranged from 1 to 4, with 4 dogs having an arrhythmia with a grade > 1. Significant differences were not detected between the group of dogs with VPC and those without VPC with regard to sex, age, and minimum, maximum, or mean heart rate.
  
  
  CONCLUSIONS
  We conclude that healthy mature dogs have infrequent VPC, as detected by use of 24-hour AECG. The presence of numerous or sequential VPC may be suggestive of cardiac or systemic disease and may indicate the need for thorough clinical evaluation.
authors.affiliation: Department of Veterinary Sciences, College of Veterinary Medicine, The Ohio State University, Columbus 43210, USA
authors.forename: K M
authors.initials: KM
authors.lastname: Meurs
authors.forename: A W
authors.initials: AW
authors.lastname: Spier
authors.forename: N A
authors.initials: NA
authors.lastname: Wright
authors.forename: R L
authors.initials: RL
authors.lastname: Hamlin
mesh_terms: D000818:Animals; D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000662:veterinary; D004283:Dog Diseases / Q000175:diagnosis* / Q000503:physiopathology; D004285:Dogs; D015716:Electrocardiography, Ambulatory / Q000662:veterinary*; D005260:Female; D008297:Male; D018879:Ventricular Premature Complexes / Q000175:diagnosis / Q000662:veterinary*