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Sonya G Gordon

Associate Professor


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Phone: (979) 845-2351

Mailstop: 4474

Department: VSCS

Photo of Gordon, Sonya


  • DVS Cardiology, Ontario Veterinary College 1998
  • D.V.M. , Ontario Veterinary College 1994
  • B.S. Toxicology, University of Guelph 1990


  • ACVIM Cardiology
  • Texas Veterinary Medical Specialty License: 0127-S

Clinical Areas of Interest

  • Cardiology

Scholarly Interests

My research interests include the diagnosis, staging, treatment and prognosis of canine chronic valvular disease and dilated cardiomyopathy, the clinical utility of cardiac biomarkers and echocardiography in dogs and cats, interventional cardiology and clinical trials.


Multicenter evaluation of plasma N-terminal probrain natriuretic peptide (NT-pro BNP) as a biochemical screening test for asymptomatic (occult) cardiomyopathy in cats.
Fox PR, Rush JE, Reynolds CA, Defrancesco TC, Keene BW, Atkins CE, Gordon SG, Schober KE, Bonagura JD, Stepien RL, Kellihan HB, Macdonald KA, Lehmkuhl LB, Nguyenba TP, Sydney Moise N, Lefbom BK, Hogan DF, Oyama MA
J Vet Intern Med. 2011 Sep; 25(5):1010-6.
Outcome of minimally invasive surgical treatment of heartworm caval syndrome in dogs: 42 cases (1999-2007).
Bové CM, Gordon SG, Saunders AB, Miller MW, Roland RM, Achen SE, Drourr LT, Boggess MM
J Am Vet Med Assoc. 2010 Jan; 236(2):187-92.
Assessment of serum N-terminal pro-B-type natriuretic peptide concentration for differentiation of congestive heart failure from primary respiratory tract disease as the cause of respiratory signs in dogs.
Oyama MA, Rush JE, Rozanski EA, Fox PR, Reynolds CA, Gordon SG, Bulmer BJ, Lefbom BK, Brown BA, Lehmkuhl LB, Prosek R, Lesser MB, Kraus MS, Bossbaly MJ, Rapoport GS, Boileau JS
J Am Vet Med Assoc. 2009 Dec; 235(11):1319-25.
Pharmacodynamics of carvedilol in conscious, healthy dogs.
Gordon SG, Arsenault WG, Longnecker M, Boothe DM, Miller MW, Chalkley J
J Vet Intern Med. 2006 Mar; 20(2):297-304.
Mural endocarditis caused by Corynebacterium mustelae in a dog with a VSD
Winter RL, Gordon SG, Zhang S, Hariu CD, Miller MW
J Am Anim Hosp Assoc. J Am Anim Hosp Assoc.
Analytical validation and clinical evaluation of a commercially available high-sensitivity immunoassay for the measurement of troponin I in humans for use in dogs.
Winter RL, *Saunders AB, Gordon SG, Miller MW, Sykes KT, Suchodolski JS, Steiner JM.
J Vet Cardiol.
ECG of the Month.J Am Vet Med Assoc
Cook AK, Gordon SG, *Winter RL, Waugh CE
J Am Vet Med Assoc.
Delayed embolization of an Amplatz(®) canine duct occluder in a dog
Carlson JA, *Achen SA, *Saunders AB, Gordon SG, Miller MW
J Vet Cardiol.
Hybrid technique for ventricular septal defect closure in a dog using an Amplatzer® Duct Occluder II
Saunders AB, *Carlson JA, Nelson DA, Gordon SG, Miller MW
J Vet Cardiol.
Utility of N-terminal pro-brain natriuretic peptide for assessing hemodynamic significance of patent ductus arteriosus in dogs undergoing ductal repair
Hariu CD, *Saunders AB, Gordon SG, Norby B, Miller MW
J Vet Cardiol. .
Efficacy of pimobendan in the prevention of congestive PROTECT Study)
Summerfield NJ, Boswood A, O'Grady MR, Gordon SG, Dukes-McEwan J, Oyama MA, Smith S, Patteson M, French AT, Culshaw GJ, Braz-Ruivo L, Estrada A, O'Sullivan ML, Loureiro J, Willis R, Watson P.
J Vet Intern Med.
Commentary: Clinical Use of NT-proBNP Assay in Dogs and Cats with Heart Disease
Oyama MA, Boswood A, Connolly DJ, Ettinger SJ, Fox PR, Gordon SG, Rush JE, Sisson DD, Stepien RL, Wess G, Zannad F
J Am Vet Med Assoc.
Effect of Pimobendan in Dogs with Preclinical Myxomatous Mitral Valve Disease and Cardiomegaly: The EPIC Study-A Randomized Clinical Trial.
Boswood A, Häggström J, Gordon SG, Wess G, Stepien RL, Oyama MA, Keene BW, Bonagura J, MacDonald KA, Patteson M, Smith S, Fox PR, Sanderson K, Woolley R, Szatmári V, Menaut P, Church WM, O'Sullivan ML, Jaudon JP, Kresken JG, Rush J, Barrett KA, Rosenthal SL, Saunders AB, Ljungvall I, Deinert M, Bomassi E, Estrada AH, Fernandez Del Palacio MJ, Moise NS, Abbott JA, Fujii Y, Spier A, Luethy MW, Santilli RA, Uechi M, Tidholm A, Watson P.
J Vet Intern Med.
ECG of the Month.
Cook AK, Gordon SG, Winter RL, Waugh CE
J Am Vet Med Assoc. 244(9):1033-5.
Transarterial coil embolization for canine patent ductus arteriosus occlusion.
Gordon SG, Miller MW
Clin Tech Small Anim Pract. 20(3):196-202.
Utility of N-terminal pro-brain natriuretic peptide for assessing hemodynamic significance of patent ductus arteriosus in dogs undergoing ductal repair.
Hariu CD, Saunders AB, Gordon SG, Norby B, Miller MW
J Vet Cardiol. 15(3):197-204.
Minimally invasive transxiphoid approach to the cardiac apex and caudoventral intrathoracic space.
Nelson DA, Miller MW, Gordon SG, Saunders A, Fossum TW
Vet Surg. 41(8):915-7.
Effect of oral administration of pimobendan in cats with heart failure.
Gordon SG, Saunders AB, Roland RM, Winter RL, Drourr L, Achen SE, Hariu CD, Fries RC, Boggess MM, Miller MW
J Am Vet Med Assoc. 241(1):89-94.
Retrospective review of carvedilol administration in 38 dogs with preclinical chronic valvular heart disease.
Gordon SG, Saunders AB, Hariu CD, Boggess MM, Miller MW
J Vet Cardiol. 14(1):243-52.
Utility of transesophageal echocardiography for transcatheter occlusion of patent ductus arteriosus in dogs: influence on the decision-making process.
Saunders AB, Achen SE, Gordon SG, Miller MW
J Vet Intern Med. 24(6):1407-13.
Open heart closure of an atrial septal defect by use of an atrial septal occluder in a dog.
Gordon SG, Nelson DA, Achen SE, Miller MM, Roland RM, Saunders AB, Drourr LT
J Am Vet Med Assoc. 236(4):434-9.
Transcatheter atrial septal defect closure with the Amplatzer atrial septal occluder in 13 dogs: short- and mid-term outcome.
Gordon SG, Miller MW, Roland RM, Saunders AB, Achen SE, Drourr LT, Nelson DA
J Vet Intern Med. 23(5):995-1002.
Echocardiographic and angiographic comparison of ductal dimensions in dogs with patent ductus arteriosus.
Saunders AB, Miller MW, Gordon SG, Bahr A
J Vet Intern Med. 21(1):68-75.
Oral amiodarone therapy in dogs with atrial fibrillation.
Saunders AB, Miller MW, Gordon SG, Van De Wiele CM
J Vet Intern Med. 20(4):921-6.
Pimobendan in heart failure therapy--a silver bullet?
Gordon SG, Miller MW, Saunders AB
J Am Anim Hosp Assoc. 42(2):90-3.
Pharmacokinetics of carvedilol after intravenous and oral administration in conscious healthy dogs.
Arsenault WG, Boothe DM, Gordon SG, Miller MW, Chalkley JR, Petrikovics I
Am J Vet Res. 66(12):2172-6.
Vascular encephalopathy associated with bacterial endocarditis in four dogs.
Cook LB, Coates JR, Dewey CW, Gordon S, Miller MW, Bahr A
J Am Anim Hosp Assoc. 41(4):252-8.
Surgical correction of subaortic stenosis via right ventriculotomy and septal resection in a dog.
Nelson DA, Fossum TW, Gordon S, Miller MW, Felger MC, Mertens MM, McMichael M, Nelson KT, Pahl G
J Am Vet Med Assoc. 225(5):705-8, 698.
ECG of the month. Second-degree atrioventricular (AV) block.
Saunders AB, Miller MW, Gordon SG
J Am Vet Med Assoc. 223(11):1572-4.
First-pass nuclear angiocardiography in the evaluation of patent ductus arteriosus in dogs.
Bahr A, Miller M, Gordon S
J Vet Intern Med. 16(1):74-9.
Pharmacotherapy of feline cardiomyopathy: Chronic management of heart failure.
Gordon SG, Côté E.
J Vet Cardiol. 17: S159-72.
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.
Machen MC, Oyama MA, Gordon SG, Rush JE, Achen SE, Stepien RL, Fox PR, Saunders AB, Cunningham SM, Lee PM, Kellihan HB
J Vet Cardiol. . 16(4): 245-55.
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.
Fox PR, Oyama MA, Hezzell MJ, Rush JE, Nguyenba TP, DeFrancesco TC, Lehmkuhl LB, Kellihan HB, Bulmer B, Gordon SG, Cunningham SM, MacGregor J, Stepien RL, Lefbom B, Adin D, Lamb K.
J Vet Intern Med. . 29(1): 171-9.
Long-term outcome in dogs with patent ductus arteriosus: 520 cases (1994-2009)
Saunders AB, Gordon SG, Boggess MM, Miller MW
J Vet Intern Med.

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