What is feline hyperthyroidism?


26 January 2023
Feline hyperthyroidism is a common endocrine (hormonal) disease generally in cats over 8 years old and is caused by an excessive amount of thyroid hormone. It can affect up to 10% of the feline population.

What are the treatment options?

There are four treatment options including surgery; medication; a restricted diet and then for most cats the ‘gold standard’ treatment option is radioactive iodine therapy (131I). This option is non-invasive and low risk compared to surgery and removes daily medication, diet changes and frequent vet visits. 95% of cases are successful.

One owner’s recent experience

 “When Milly was diagnosed with hyperthyroidism we decided on the Radioactive Iodine Treatment, as my research had indicated it was the 'gold standard' for treating her. I was really apprehensive but was reassured and put at ease by the vet, who took time and patience to make sure I thoroughly understood the procedure, the risks, and the benefits. 

“Milly has improved so much since her treatment and came home happy and relaxed. She slotted back into our family, and seems much calmer, the treatment has really had a positive effect.  I would definitely recommend this as an option for people who have cats with overactive thyroids. It has been so much easier for everyone, including Milly not to have tablets every day.

“Our experience of Anderson Moores has been excellent, from beginning to end. Totally taking into consideration our pets are our families. I knew Milly was in such good hands and would recommend AMVS as a vets to go to in the future.”

Why Anderson Moores Veterinary Specialists (AMVS) for your cat’s treatment and care?

Our Feline Hyperthyroid Clinic is one of a small number of dedicated clinics in the UK since 2016, and we have a team of Veterinary Specialists in small animal medicine and dedicated highly-trained nurses to look after your cat.

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Veterinary nurse Lou Gower manages our FHC

Lou said: “It’s extremely rewarding being able to offer such an effective and high standard of care which enables so many of our cat patients, to live longer, healthier and happier lives. The treatment doesn’t involve the risks associated with surgery and avoids potential side-effects from long-term medication. The process involves a small amount of radioactive iodine being injected into the scruff of the neck, just like a vaccination. It is then taken in by the overactive thyroid tissue and emits radiation to destroy the abnormal tissue, while sparing all other organs. After a short period of hospitalisation, usually between nine and 13 days, and a further couple of weeks of simple precautions at home, the cats can return to normal daily life.”

To find out more go to www.andersonmoores.com/feline-hyperthyroid-clinic

Please be aware that while we welcome enquiries about the treatment from cat owners of hyperthyroid cats, your cat will need to be referred by your vet. Please contact the Feline Hyperthyroid Clinic team on [email protected].

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