Effect of sampling time on urinary electrolytes following oral furosemide administration in dogs with myxomatous mitral valve disease |
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| Institution: | 2. Department of Veterinary Sciences, University of Parma, Strada del Taglio, 10, 43126, Parma, Italy;1. Department of Clinical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR, 97331, USA;2. Department of Small Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, 77843, USA;3. Red Bank Veterinary Hospital, Tinton Falls, NJ, 07724, USA;4. Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32608, USA;5. Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS, 66506, USA;1. Veterinary Teaching Hospital, Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan;2. Division of Small Animal Surgery, Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, 020-8550, Japan;3. Department of Veterinary Internal Medicine, Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, 020-8550, Japan;4. Elle Animal Clinic, 1-5-12 Tokiwadai, Kitakami, 024-0012, Japan;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 |
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| Abstract: | Introduction/ObjectivesUrine chemistry has received growing attention to estimate the diuretic response in dogs with cardiac disease.The aim of the study was to evaluate the impact of time elapsed between the oral furosemide administration and sample collection on urine chemistry in dogs with myxomatous mitral valve disease (MMVD) receiving diuretic therapy in American College of Veterinary Internal Medicine (ACVIM) stage C.Materials and methodsSeventy-three dogs with MMVD ACVIM stage C and 106 healthy dogs were prospectively included. Dogs with MMVD were divided, based on the time of sampling, in morning group (MMVD-MG) of one to 6 h and an evening group (MMVD-EG) over 6 h from oral furosemide administration. Analogously, healthy dogs sampled between 9 a.m. and 1 p.m. and between 2 and 7 p.m. were divided in a morning group (H-MG) and an evening group (H-EG), respectively. Urine chemistry, including fractional excretion of electrolytes, was evaluated and compared among groups.ResultsHigher excretion of sodium and chloride and higher urine sodium to urine potassium ratio (uNa+:uK+) were detected in MMVD-MG than MMVD-EG (P = 0.021, P = 0.038, and P = 0.016, respectively). Natriuresis, chloriuresis, and uNa+:uK+ were higher in MMVD-MG than H-MG, while no differences were found in the comparison between H-MG and H-EG and between MMVD-EG and H-EG.ConclusionsUrinary electrolyte excretion is significantly increased within 6 h from furosemide administration in MMVD ACVIM stage C dogs. Time of sampling from furosemide administration significantly affects urine chemistry in MMVD dogs and should be considered in clinical practice and the research field. |
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| Keywords: | Diuretic Fractional excretion Heart disease Natriuresis Urine chemistry |
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