Congenital supravalvular aortic stenosis in a kitten |
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| Institution: | 1. AniCura Specialistisch Verwijscentrum Haaglanden, Frijdastraat 20a, Rijswijk, 2288 EZ, the Netherlands;2. Veterinaire Specialisten Vught, Reutsedijk 8a, Vught, 5264 PC, the Netherlands;1. Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA;2. Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA;1. Clinica Veterinaria Malpensa, AniCura, Viale Marconi, 27, 21017, Samarate, VA, Italy;2. Ospedale Veterinario I Portoni Rossi, AniCura, Via Roma 57, 40069, Zola Predosa, BO, Italy;3. Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, 40064, Ozzano Dell''Emilia, BO, Italy;4. Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, 930 Campus Road, 14853, Ithaca, NY, USA;1. Corresponding Address Kardiovet GmbH, Eystrasse 74, Kirchberg, Switzerland;2. Department for Companion Animals and Horses, University of Veterinary Medicine, Veterinärplatz, Vienna, Austria;3. Centre Hospitalier Vétérinaire des Cordeliers, 35 Avenue Du Maréchal Joffre, 77100 Meaux, France;4. Tierärztliche Gemeinschaftspraxis, An Den Wurthen 26, 17489 Greifswald, Germany;5. Medisch Centrum voor Dieren, Isolatorweg 45, 1014 AS Amsterdam, the Netherlands;6. Small Animal Teaching Hospital, Department of Small Animal Clinical Science, Institute of Veterinary Science, University of Liverpool, Leahurst Campus, Chester High Road, Neston, Cheshire CH64 7TE, UK;7. Tierklinik Bockenheim, Juliusstrasse 12, 60487 Frankfurt, Germany;8. Ross University School of Veterinary Medicine, Basseterre, St. Kitts West Indies, St. Kitts and Nevis;9. Kleintierspezialisten Dres. Schmerbach & Höpfner, Wittestr. 30, 13509 Berlin, Germany;10. Tiergesundheitszentrum Obere Hard, Überweisungspraxis für Innere Medizin und Kardiologie, Oberer Hardweg 16, 75181 Pforzheim, Germany;11. Barton Veterinary Hospital and Surgery, CVS (UK) Ltd, 34 New Dover Road, Canterbury, Kent CT1 3BH, UK;12. North Downs Specialist Referrals, The Friesian Building 3 & 4, The Brewerstreet Dairy Business Park, Brewer Street, Bletchingley, Surrey RH1 4QP, UK;13. Clinique Vétérinaire Aquivet, 19 Avenue de La Forêt, Parc d''activités Mermoz, 33320 Eysines, France;14. Clinique Vétérinaire Armonia, Rue Serge Mauroit, 38090 Villefontaine, France;15. Aalborg Dyrehospital, Fredrikstadvej 10, 9200 Aalborg SV, Denmark;p. Kleintierzentrum Walluf, Am Klingenweg 21, 65396 Walluf, Germany;q. Tierärztliche Klinik Oberhaching, Bajuwarenring 10, 82041 Oberhaching, Germany;r. Oncovet Clinique Vétérinaire de Référés, Avenue Paul Langevin, 59650 Villeneuve d''Ascq, France;s. Ivy Court, Willington Rd, Etwall, Derbyshire DE65 6JG, UK;t. Anderson Moores Veterinary Specialists, The Granary, Bunstead Barns, Poles Lane, Hursley, Winchester, Hampshire SO21 2LL, UK;u. Clinic of Small Animal Medicine, Ludwig-Maximilians University, Veterinärstrasse 13, 80539 Munich, Germany;v. Clinique Vétérinaire Foch, 38 Avenue du Maréchal Foch, 34500 Beziers, France;w. Boehringer Ingelheim Vetmedica GmbH Binger Strasse 173, 55216 Ingelheim Am Rhein, Germany;1. Department of Cardiology of Clinica Veterinaria Gran Sasso, Via Donatello 26, 20131, Milano, Italy;2. Department of Cardiology and Diagnostic Imaging of Clinica Veterinaria Vezzoni, Via Delle Vigne 190, 26100, Cremona, Italy |
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| Abstract: | A three-month-old, male intact Norwegian forest cat without any clinical signs was referred to the cardiology service of the author’s teaching hospital for evaluation of a cardiac murmur. The murmur was systolic with an intensity of 4 out of 6 with the point of maximal intensity at the left heart base. Echocardiography revealed a moderate mitral valve regurgitation and a moderate dynamic left ventricular outflow tract obstruction both resulting from systolic anterior motion of the mitral valve (SAM). Moreover, left ventricular concentric hypertrophy was noted. Oral atenolol therapy was initiated. Recheck examination 3.5 months later revealed unchanged murmur characteristics in the still asymptomatic kitten. Echocardiography showed no SAM, but there was a severe fixed aortic stenosis apparent caused by a discrete supravalvular lesion, 4 mm distal to the valve, with an hourglass morphology. Supravalvular aortic stenosis is a rare congenital anomaly in cats, which has not been reported antemortem yet. |
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| Keywords: | Cat Echocardiography Feline Murmur Systolic anterior motion |
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