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Mark A Oyama, DVM, MSCE, DACVIM

Mark A Oyama, DVM, MSCE, DACVIM

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Professor of Cardiology
Department: Cardiology

Contact information
Department of Clinical Studies-Philadelphia
Matthew J. Ryan Veterinary Hospital of the University of Pennsylvania
School of Veterinary Medicine
University of Pennsylvania
3900 Delancey St.
Philadelphia, PA 19104
Office: 215-898-3331
Fax: 215-573-6232
Education:
DVM (Doctor Veterinary Medicine)
University of Illinois, 1994.
MSCE (Masters of Science in Clinical Epidemiology)
University of Pennslyvania, 2015.
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Description of Research Expertise

Cardiac biomarkers (troponin, natriuretic peptides [BNP, ANP])
Acquired mitral valve disease (myxomatous degeneration)
Cardiomyopathy (canine dilated cardiomyopathy)
Clinical trials
Serotonin signaling and valve disease
Calstabin2 (FKBP12.6) and ryanodine receptors in cardiomyopathy
Animal models of heart disease and heart failure
Quality of life issues in dogs and cats with heart disease

Description of Clinical Expertise

Canine and feline models of heart disease
Acquired mitral valve disease (myxomatous degeneration)
Canine dilated cardiomyopathy

Selected Publications

Cremer, Signe E; Kristensen, Annemarie T; Reimann, Maria J; Eriksen, Nynne B; Petersen, Stine F; Marschner, Clara B; Tarnow, Inge; Oyama, Mark A; Olsen, Lisbeth H.: Plasma and serum serotonin concentrations and surface-bound platelet serotonin expression in Cavalier King Charles Spaniels with myxomatous mitral valve disease. American Journal of Veterinary Research 76(6): 520-31, Jun 2015.

Fox, P R; Oyama, M A; Hezzell, M J; Rush, J E; Nguyenba, T P; DeFrancesco, T C; Lehmkuhl, L B; Kellihan, H B; Bulmer, B; Gordon, S G; Cunningham, S M; MacGregor, J; Stepien, R L; Lefbom, B; Adin, D; Lamb, K.: Relationship of plasma N-terminal pro-brain natriuretic peptide concentrations to heart failure classification and cause of respiratory distress in dogs using a 2nd generation ELISA assay. Journal of Veterinary Internal Medicine 29(1): 171-9, Jan 2015.

Machen, Maggie C; Oyama, Mark A; Gordon, Sonya G; Rush, John E; Achen, Sarah E; Stepien, Rebecca L; Fox, Philip R; Saunders, Ashley B; Cunningham, Suzanne M; Lee, Pamela M; Kellihan, Heidi B.: Multi-centered investigation of a point-of-care NT-proBNP ELISA assay to detect moderate to severe occult (pre-clinical) feline heart disease in cats referred for cardiac evaluation. Journal of Veterinary Cardiology 16(4): 245-55, Dec 2014.

Cremer, S E; Singletary, G E; Olsen, L H; Wallace, K; Haggstrom, J; Ljungvall, I; Hoglund, K; Reynolds, C A; Pizzinat, N; Oyama, M A.: Serotonin concentrations in platelets, plasma, mitral valve leaflet, and left ventricular myocardial tissue in dogs with myxomatous mitral valve disease. Journal of Veterinary Internal Medicine 28(5): 1534-40, Sep-Oct 2014.

Langhorn, R; Thawley, V; Oyama, M A; King, L G; Machen, M C; Trafny, D J; Willesen, J L; Tarnow, I; Kjelgaard-Hansen, M.: Prediction of long-term outcome by measurement of serum concentration of cardiac troponins in critically ill dogs with systemic inflammation. Journal of Veterinary Internal Medicine 28(5): 1492-7, Sep-Oct 2014.

Cremer, S E; Zois, N E; Moesgaard, S G; Ravn, N; Cirera, S; Honge, J L; Smerup, M H; Hasenkam, J M; Sloth, E; Leifsson, P S; Falk, T; Oyama, M A; Orton, C; Martinussen, T; Olsen, L H.: Strong association between activated valvular interstitial cells and histopathological lesions in porcine model of induced mitral regurgitation. International Journal of Cardiology 174(2): 443-6, Jun 15 2014.

Fonfara, Sonja; Hetzel, Udo; Oyama, Mark A; Kipar, Anja.: The potential role of myocardial serotonin receptor 2B expression in canine dilated cardiomyopathy. Veterinary Journal 199(3): 406-12, Mar 2014.

Oyama, Mark A.: Using cardiac biomarkers in veterinary practice. [Review] Veterinary Clinics of North America - Small Animal Practice 43(6): 1261-72, vi, Nov 2013.

Ljungvall, I; Hoglund, K; Lilliehook, I; Oyama, M A; Tidholm, A; Tvedten, H; Haggstrom, J.: Serum serotonin concentration is associated with severity of myxomatous mitral valve disease in dogs. Journal of Veterinary Internal Medicine 27(5): 1105-12, Sep-Oct 2013.

Langhorn, R; Oyama, M A; King, L G; Machen, M C; Trafny, D J; Thawley, V; Willesen, J L; Tarnow, I; Kjelgaard-Hansen, M.: Prognostic importance of myocardial injury in critically ill dogs with systemic inflammation. Journal of Veterinary Internal Medicine 27(4): 895-903, Jul-Aug 2013.

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Last updated: 02/09/2016
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