A case of sustained atrial fibrillation in a cat with a normal sized left atrium at the time of diagnosis |
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Authors: | David J Connolly BVetMed PhD Dipl ECVIM-CA |
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Institution: | Department of Veterinary Clinical Science, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK |
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Abstract: | This case illustrates an unusual presentation of atrial fibrillation in a 10-year-old male neutered Maine coon. At the time of diagnosis of the arrhythmia the size of the left atrium determined by echocardiography was within normal limits and no structural or functional heart or other systemic disease was identified. Traditionally it has been suggested that the atria must be of a sufficient size in order to sustain atrial fibrillation (multiple wavelet theory) and therefore only cats with significant cardiac disease can attain sufficiently large atria to sustain this arrhythmia. To the author's knowledge this is the first detailed case report of sustained atrial fibrillation in a cat with a normal sized left atrium and no obvious structural heart disease seen on cardiac ultrasound. |
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Keywords: | Atrial fibrillation Feline Cardiomyopathy Structural remodelling |
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