| Arrhythmias in newborn thoroughbred foals. | |
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MedLine Citation:
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PMID: 1606928 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Foetal electrocardiograms (ECG) were obtained from 39 of 50 Thoroughbred foaling mares close to delivery. The 50 newborn foals were studied electrocardiographically during their adaptive period, immediately after birth. In 48 foals there were paroxysmal arrhythmias or mixed arrhythmias. The most common arrhythmias were sinus arrhythmias including wandering pacemaker (32/50) and atrial premature contraction (30/50). The others observed were atrial fibrillation (15/50), ventricular premature contraction (10/50), partial atrioventricular block (7/50), ventricular tachycardia (4/50), atrial tachycardia (3/50) and idioventricular rhythm (1/50). The duration of the arrhythmias was approximately 5 min, and in all cases the arrhythmia disappeared within 15 min of birth. From foetal ECG recordings, no indication of the likelihood of neonatal arrhythmias was detected. With the exception of 2 cases, all foals have continued to grow and develop normally. These arrhythmias are considered normal physiological processes in newborn Thoroughbred foals during the adaptive period to extra-uterine life. High vagal tone and hypoxaemia at birth are probably the main contributing factors. |
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Authors:
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K Yamamoto; J Yasuda; K Too |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Equine veterinary journal Volume: 24 ISSN: 0425-1644 ISO Abbreviation: Equine Vet. J. Publication Date: 1992 May |
Date Detail:
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Created Date: 1992-07-21 Completed Date: 1992-07-21 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0173320 Medline TA: Equine Vet J Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 169-73 Citation Subset: IM |
Affiliation:
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Veterinary Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Animals, Newborn Arrhythmia, Sinus / diagnosis, veterinary Arrhythmias, Cardiac / diagnosis, veterinary* Electrocardiography / veterinary* Female Fetal Diseases / diagnosis, veterinary* Heart Rate Heart Rate, Fetal Horse Diseases / diagnosis* Horses Male Pregnancy |
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