Feline Hypothyroidism: Case Report
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https://doi.org/10.5281/zenodo.14055743Keywords:
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Among the most common endocrinopathies in felines, hypothyroidism is of low prevalence. The origins of hypothyroidism can be acquired or congenital, the latter being the most common cause in felines. It is caused by a failure in the development of the thyroid gland (thyroid dysgenesis) or by an altered production of thyroid hormone (thyroid dyshormonogenesis). The disorder can cause a variety of clinical signs, these are related to the dysfunction of physiological processes mediated by thyroid hormones, such as muscle and brain development, energy balance and normal growth, giving abnormalities in skeletal muscle development. To diagnose this disease, hormonal measurements are performed to detect a high concentration of thyroid hormones in the blood, that is, total thyroxine (total T4), triiodothyronine (T3), free thyroxine (free T4) and thyroid-stimulating hormone (TSH). Free T4 is the fraction of thyroxine not bound to protein, a biologically active fraction, considered the most sensitive for the diagnosis of hypothyroidism. This publication describes the case report of a female feline, treated at the Small Animal School Hospital, of the Faculty of Veterinary Sciences of the National University of La Pampa, its diagnostic investigation and treatment recommendations.
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