Diagnosis and management of feline hyperthyroidism

Abstract

Hyperthyroidism is the most common endocrine disorder of cats, and the diagnosis of a feline patient with an overactive thyroid is routine in general practice these days. Despite the familiar presentation, the ever-increasing appreciation of sequelae such as cardiac disease and hypertension, and possible comorbid conditions such as chronic kidney disease, make the disease more interesting and increases the complexity of its management. This article discusses the clinical presentation and diagnosis of hyperthyroidism, and the various management options including surgery and radioactive iodine treatment, or long-term medical management using anti-thyroid drugs.