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Effects of age on the prevalence of cardiac dysrhythmias in ponies | ||
| Iranian Journal of Veterinary Research | ||
| مقاله 1، دوره 11، شماره 3 - شماره پیاپی 32، 2010، صفحه 200-205 اصل مقاله (69.33 K) | ||
| نوع مقاله: Full paper (Original article) | ||
| شناسه دیجیتال (DOI): 10.22099/ijvr.2010.120 | ||
| نویسندگان | ||
| A. Rezakhani* 1؛ R. S. Pirie2؛ K. J. Blissitt2 | ||
| 1Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran | ||
| 2Department of Clinical Sciences, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush Veterinary Centre, Roslin, Midlothian UK, EH25 9RG, England | ||
| چکیده | ||
| This study describes the prevalence of cardiac dysrhythmias occurring over a single 24 h period in ponies and compares the heart rate and frequency of dysrhythmias in two groups of ponies of different ages. Electrocardiograms were recorded using a Holter monitoring system from twenty four ponies aged less than 15-year-old (n = 14) and greater than 15-year-old (n = 10). Subsequent analyses of cardiac rhythm revealed that only 3/24 ponies maintained a regular rhythm throughout the recording period. In the remaining 21 ponies, 6 different types of dysrhythmias were detected, the majority of which were vagally mediated; sinus arrhythmia (n = 12), sinoatrial block (n = 6) and second degree atrioventricular block (n = 10). Premature beats of both atrial (n = 3) and ventricular (n = 1) origin were observed only in the older group. There were no significant differences between the 2 groups with respect to mean 24-h heart rates or the prevalence of cardiac dysrhythmias. | ||
| کلیدواژهها | ||
| Heart؛ Dysrhythmia؛ Holter monitoring؛ Pony | ||
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