Dr. Guillermo Couto

Dr. Guillermo Couto

Dr. Guillermo Couto is a diplomate of the American College of Veterinary Internal Medicine, with board certification in both Small Animal Internal Medicine and Oncology. With nearly 50 years of experience, Dr. Couto is internationally recognized for his work in clinical and comparative hematology, oncology, and clinical pathology.

He is the coauthor of the widely used Small Animal Internal Medicine textbook, now in its sixth edition, and has published over 175 peer-reviewed scientific articles and more than 220 book chapters. His clinical focus includes providing veterinary oncology consult services and personalized pet cancer consults for both canine and feline patients.

A leading expert in Greyhound medicine, sighthound medicine, and sighthound health, Dr. Couto has authored more than 40 peer-reviewed publications specific to Greyhounds, Galgos, and other sighthounds. His expertise in hematology also makes him a sought-after consultant for blood diseases in dogs and cats, particularly in complex or breed-specific cases.

Recent Articles

Plasma Vasoprotective Eicosanoid Concentrations in Healthy Greyhounds and Non-Greyhound Dogs

Background Hypertension and albuminuria often coexist in Greyhounds, suggesting generalized vascular dysfunction that could contribute to the development of a...

Effect of ascorbic acid on storage of Greyhound erythrocytes

Abstract OBJECTIVE To assess changes in biochemical and biophysical properties of canine RBCs during cold (1° to 6°C) storage in...

Plasma N-terminal pro-B-type natriuretic peptide concentration in healthy retired racing Greyhounds

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Cutaneous and renal glomerular vasculopathy as a cause of acute kidney injury in dogs in the UK

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Effects of racing on reticulocyte concentrations in Greyhounds

Greyhounds have several hematologic variables that are outside of the respective reference intervals of other dog breeds. In addition, increases...

Postoperative Adjuvant Combination Therapy with Doxorubicin and Noncytotoxic Suramin in Dogs with Appendicular Osteosarcoma

Although conventional treatment of dogs with osteosarcoma (OSA) by amputation and chemotherapy results in reported survival times (STs) of 262–413...

Genome-wide analyses implicate 33 loci in heritable dog osteosarcoma, including regulatory variants near CDKN2A/B

Abstract Background Canine osteosarcoma is clinically nearly identical to the human disease, but is common and highly heritable, making genetic...

Iron Status in Blood Donor Dogs

Abstract Background Despite the popularity of canine blood donor (BD) programs, there is scarce scientific information regarding iron status in...

Markers of iron metabolism in retired racing Greyhounds with and without osteosarcoma

Abstract Background Greyhounds have well-described clinicopathologic idiosyncrasies, including a high prevalence of osteosarcoma (OSA). Hematocrit, HGB, and HGB oxygen affinity...

Arterial Blood Pressure, Proteinuria, and Renal Histopathology in Clinically Healthy Retired Racing Greyhounds

Physiologic peculiarities of Greyhounds as compared to other dogs make interpretation of laboratory results in this breed challenging for veterinarians....

Haematological, blood gas and acid-base values in the Galgo Español (Spanish greyhound)

Haematologic profiles, electrolyte concentrations, blood gas values and acid-base balance have been studied and reported in healthy greyhounds; however, there...

Epsilon Aminocaproic Acid for the Prevention of Delayed Postoperative Bleeding in Retired Racing Greyhounds Undergoing Gonadectomy

Objective To evaluate the effects of epsilon aminocaproic acid (EACA) on the prevalence of postoperative bleeding in retired racing Greyhounds...