Hyperthyroidism in cats: An overview

Hyperthyroidism, primarily due to functional thyroid adenoma, is the most common endocrinopathy of older cats worldwide. Even though the etiopathogenesis of feline hyperthyroidism is not yet fully understood, the four common therapeutic modalities that can be implemented individually or in combinati...

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Main Authors: G. Ajitkumar, R. Praseeda
Format: Article
Language:English
Published: Director of Academics and Research, Kerala Veterinary and Animal Sciences University 2020-07-01
Series:Journal of Veterinary and Animal Sciences
Online Access:https://www.jvas.in/public_html/upload/article_file/article_file_qhuxve.pdf?t=qhuxve
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author G. Ajitkumar
R. Praseeda
author_facet G. Ajitkumar
R. Praseeda
author_sort G. Ajitkumar
collection DOAJ
description Hyperthyroidism, primarily due to functional thyroid adenoma, is the most common endocrinopathy of older cats worldwide. Even though the etiopathogenesis of feline hyperthyroidism is not yet fully understood, the four common therapeutic modalities that can be implemented individually or in combination for management are surgical thyroidectomy, radioactive iodine, pharmaceutical therapy and dietary therapy using a limited-iodine diet. Regular monitoring of a hyperthyroid cat is important to assess therapeutic efficacy, to detect iatrogenic hypothyroidism and to confirm comorbidities that become evident with resolution of the hyperthyroidism. Thyroid gland is an endocrine gland located at the neck area. In cats, this gland has two lobes connected by an indistinct isthmus. The functional unit of the gland is the thyroid follicle and the three hormones produced are triiodothyronine (T3), thyroxine (T4) and calcitonin. Secretion of T3 and T4 are regulated by the thyroid-stimulating hormone (TSH) and thyrotropin-releasing hormone (TRH) produced by the pituitary gland and hypothalamus, respectively. Ectopic or accessory thyroid tissue is relatively common in many species including cats and may be located anywhere from the larynx to the diaphragm. Hyperthyroidism is characterized by the overproduction of thyroid hormone and a subsequent increase in metabolic rate.
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spelling doaj.art-94629f09611c4d0ba368fff95c8b17252022-12-21T23:19:51ZengDirector of Academics and Research, Kerala Veterinary and Animal Sciences UniversityJournal of Veterinary and Animal Sciences0971-07012582-06052020-07-01512101107Hyperthyroidism in cats: An overviewG. Ajitkumar0R. Praseeda1Deerfoot South Spay, Neuter and Wellness Clinic Calgary, Alberta, CanadaDeerfoot South Spay, Neuter and Wellness Clinic Calgary, Alberta, CanadaHyperthyroidism, primarily due to functional thyroid adenoma, is the most common endocrinopathy of older cats worldwide. Even though the etiopathogenesis of feline hyperthyroidism is not yet fully understood, the four common therapeutic modalities that can be implemented individually or in combination for management are surgical thyroidectomy, radioactive iodine, pharmaceutical therapy and dietary therapy using a limited-iodine diet. Regular monitoring of a hyperthyroid cat is important to assess therapeutic efficacy, to detect iatrogenic hypothyroidism and to confirm comorbidities that become evident with resolution of the hyperthyroidism. Thyroid gland is an endocrine gland located at the neck area. In cats, this gland has two lobes connected by an indistinct isthmus. The functional unit of the gland is the thyroid follicle and the three hormones produced are triiodothyronine (T3), thyroxine (T4) and calcitonin. Secretion of T3 and T4 are regulated by the thyroid-stimulating hormone (TSH) and thyrotropin-releasing hormone (TRH) produced by the pituitary gland and hypothalamus, respectively. Ectopic or accessory thyroid tissue is relatively common in many species including cats and may be located anywhere from the larynx to the diaphragm. Hyperthyroidism is characterized by the overproduction of thyroid hormone and a subsequent increase in metabolic rate.https://www.jvas.in/public_html/upload/article_file/article_file_qhuxve.pdf?t=qhuxve
spellingShingle G. Ajitkumar
R. Praseeda
Hyperthyroidism in cats: An overview
Journal of Veterinary and Animal Sciences
title Hyperthyroidism in cats: An overview
title_full Hyperthyroidism in cats: An overview
title_fullStr Hyperthyroidism in cats: An overview
title_full_unstemmed Hyperthyroidism in cats: An overview
title_short Hyperthyroidism in cats: An overview
title_sort hyperthyroidism in cats an overview
url https://www.jvas.in/public_html/upload/article_file/article_file_qhuxve.pdf?t=qhuxve
work_keys_str_mv AT gajitkumar hyperthyroidismincatsanoverview
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