Hyperthyroidism, also known as "hyperthyroid disease," occurs when the thyroid gland enlarges and starts producing excess amounts of thyroid hormone (thyrotoxicosis).In cats, thyrotoxicosis is usually caused by a benign tumor on one or both thyroid glands. Frequency of administration is determined by your veterinarian and usually based on T4 blood levels. Less than three to five percent of hyperthyroid cats have a cancerous thyroid growth. A few cats will become hypothyroid and may need to take thyroid pills. If methimazole is discontinued, thyroid hormone levels will return to high levels over a few weeks. Surgical removal of the thyroid gland(s) can usually be performed without complications. Complications of hyperthyroidism. Methimazole is given for 1 to 2 months before surgery so that thyroid hormone levels are normal at the time of surgery. This is a disease seen most commonly in the cat. These cats have thyroid cells in abnormal locations, including inside the chest cavity where surgical removal is difficult. The cat’s heart rate and blood pressure may also be checked. The anti-thyroid pill is methimazole, also known as Tapazole. The diet is not recommended for cats without the disease; and it does not satisfy the AAFCO nutrient profiles for cat food (a food does not have to meet those standards if it passed a feeding test). However, up to 10% of all hyperthyroid cats and 40% of those with mild disease have serum T4values within the reference range.1,2 1. This implies that there are genetic factors at work as well. It is important to realize that these tumors are almost always benign and represent a form of goiter rather than a form of cancer. Hyperthyroidism in Cats Cat owners know that nothing is quite as devastating as watching your poor kitty-cat suffer due to any kind of illness or health concern. This mass may interfere with the swallowing function. Radioactive iodine is given intravenously and will accumulate in the abnormal thyroid tissue killing the abnormal thyroid cells but sparing the normal thyroid cells. These signs usually resolve without stopping the medication. Cat's Teeth Examination for Cat Owners. The hallmark sign is. The overall prognosis tends to be good. is a common disease in cats, and mostly afflicts cats middle-aged and older. For full Thyroid evaluation you need TSH, FT4, TT4, FT3 plus TPO and TG thyroid antibodies. My cat of 16.5 years has hyperthyroid controlled by felimazole for about 4 yrs. Discuss the 3 options with your veterinarian. Chemical Injuries: First Aid. Cats with hyperthyroidism often develop a mass on their trachea. If they are discontinued, thyroid hormone levels will return to high levels over a few weeks. occasionally difficulty breathing – panting and respiratory distress can be due to respiratory muscle weakness and increased carbon dioxide production. Blood pressure should be performed at every veterinary visit to monitor the progression of the disease and its effects on other organs in the body. Occasionally complications may develop including damage to the parathyroid glands, which are closely attached to the thyroid gland, damage to nerves close to the thyroid gland or damage to the voice box. Methimazole is given one to three times daily and must be continued life long. 95% of hyperthyroid cats are classical in their presentation and exhibit some or all of the following: excessive appetite, weight loss, attitude changes, hyperactivity, aggression, tremors, increased vocalization, hair loss/unkempt coat, excessive drinking, excessive urinating, vomiting and/or diarrhea. The disadvantages of radioactive iodine treatment include the need to travel to a facility that offers this treatment and the need for the cat to remain hospitalized until the level of radioactivity decreases to a safe level as determined by the state radiation control office (usually 1 to 3 weeks). There are three types of treatment for hyperthyroidism: All three treatments will reduce thyroid hormone levels and the signs of hyperthyroidism. Treatment with radioactive iodine is only performed at selected specialty veterinary practices. Elevated phosphorus (hyperposphatemia) with concurrent low calcium (hypocalcemia). Myxedema is a gelatinous thickening of the vocal folds, which causes a harsh, “smoker’s voice.” This occurs in varying degrees and, when severe, may require surgery. Hyperthyroidism is caused by a benign growth in the thyroid gland that is over-producing T4. After this test the cat must be hospitalized for a few days while it clears the radioactive compound from its body. When a cat develops laryngitis, it loses its meow for a few days. The most common diet used is Hills y/d. Declawing and Alternatives for Cats. Surgical removal of the thyroid gland(s) can usually be performed without complications. Some cats will remain hyperthyroid after surgical removal of the thyroid glands. The disadvantages of radioactive iodine treatment include the need to travel to a facility that offers this treatment and the need for the cat to remain hospitalized until the level of radioactivity decreases to a safe level as determined by the state radiation control office (usually 1 to 3 weeks). Generally speaking, the smaller (3 ounces and 5.5 ounces) cans will be less apt to contain BPA than the larger (12-13 ounce) cans. Heart disease may cause fluid to build up in or around the lungs. Washington State University College of Veterinary Medicine, PO Box 647010Washington State UniversityPullman, WA 99164-7010, College Phone: (509) 335-9515College Office: Bustad Hall, Room 110, Center for the Study of Animal Well-Being, Symposium: Improving Learning Environments, India Lane Clinical Teaching Workshop: Feedback, Clinical Reasoning and Curriculum Integration, Cougar Orientation and Leadership Experience, Northwest Bovine Veterinary Experience Program, Humane Society Alliance Education Program, Examining and Medicating the Ears of Your Cat, Examining and Medicating the Eyes of Your Cat, Examining and Medicating the Ears of Your Dog, Examining and Medicating the Eyes of Your Dog. Hyperthyroid cats frequently experience reduced quality of life through weight loss, muscle deterioration, chronic vomiting or chronic diarrhea. If your dog or cat is losing their bark or meow do not put off a visit to your vet. If your cat is suitable for surgery, you will first need to settle their thyroid by giving them medication for 3-4 weeks. Damage to the voice box causes a change in voice. Methimazole is given for 1 to 2 months before surgery so that thyroid hormone levels are normal at the time of surgery. Blood thyroid hormone levels should be measured once or twice a year. Diet – 20% of cats with hyperthyroidism may be controlled with diet alone. Purebred cats, especially the Siamese and Himalayan breeds, appear to have a decreased incidence of hyperthyroidism (meaning they are less likely to develop this condition). hyperthyroid cat symptoms crying. hyperthyroid cats are high risk anaesthetic cases • if one gland is affected and removed, the other side may become affected at a later date, causing symptoms to recur – ... Each cat and owner is different, so it is important to discuss the different treatment options with your vet to decide what is A more serious side effect is the development of low blood cell counts which are more likely to develop during the first 3 months of treatment. After this test the cat must be hospitalized for a few days while it clears the radioactive compound from its body. Hill’s claims that this diet, fed exclusively, will normalize a hyperthyroid cat’s hormone levels within 3 weeks. If these signs occur, ... is the gold standard therapy for hyperthyroid cats and is a once-off treatment. It takes several weeks for methimazole to reduce blood thyroid hormone levels to normal. Hypertension – related to heart changes and increased metabolism. This disease emerged in the 1980s but has become so common that a wealth of information is available. Parathyroid gland damage causes low blood calcium that may cause seizures. Radioactive iodine treatment is very effective and rarely causes hypothyroidism. Discuss the 3 options with your veterinarian. Signs of hyperthyroidism can vary in severity depending on how long a cat has been ill. Common signs are: increased appetite – caused by increased energy expenditures, increased metabolic rate, decreased work efficiency causes a ravenous appetite and increased food intake. There are 2 thyroid glands located in the neck. Clean Houses are Possible, Even With Pets! Hyperthyroid cats are also extra thirsty and are sometimes brought to the vet because they are drinking so much water. High levels of thyroid hormone may cause heart disease. Other than unexplained weight loss, your cat may also become more restless, hyperactive, vocal, and extremely hungry! Medications Commonly Used for Heart Failure, Holiday Pet Tips, Gifts for Pets and Pet Owners, surgical removal of affected thyroid glands. We believe a simple lifestyle issue that characterizes modern life is leading to thyroid disorder. Heart disease may cause fluid to build up in or around the lungs. Thyroid hormones affect nearly all the organs in the body; therefore, thyroid disease often causes secondary problems i, There are many clinical signs associated with feline hyperthyroidism. This information is not meant to be a substitute for veterinary care. This is a drug that is created at a compounding pharmacy. We feel an easy way of life problem that characterizes modern life is resulting in thyroid gland disorder. Lab tests may include: There are three types of treatment for hyperthyroidism: All three treatments will reduce thyroid hormone levels and the signs of hyperthyroidism. Elevated levels of T4 affect the nervous system. Signs of hyperthyroidism can vary in severity depending on how long a cat has been ill. Common signs are: A veterinarian who suspects a cat has a thyroid problem will conduct a physical examination and palpate the cat’s neck area to check for an enlarged thyroid gland. occasionally weakness – may be caused by generalized weakness in the muscles and muscle wasting. Clinical Signs of Oral or Dental Disease in Pets. Hyperthyroidism is the most common hormone imbalance in cats. The heart may appear enlarged on x-ray or ultrasound and may show abnormal electrical activity on an ECG (electrocardiogram). Always follow the instructions provided by your veterinarian. Although thyroid tumors can be cancerous, the chances are less than 5 percent in cats. Hyperthyroidism occurs most commonly in older cats and is rare in dogs. Enlarged thyroid glands can be surgically removed. You may see vocalization, restlessness and agitation. The average age of cats with hyperthyroidism is 13 years of age; only about 5 % of hyperthyroid cats are younger than 10 years of age. The enlarged thyroid gland(s) can often be felt in the neck. Your veterinarian will refer you to one close by. Plus vitamin D, folate, ferritin and B12. The diet must be fed exclusively (i.e. This disorder can affect your cat's hormonal balance, causing her to lose weight and feel all out of sorts. The main symptom is heartburn, but GERD … In a normal cat, the lobes of the thyroid gland cannot be felt with your fingers. Cats afflicted with hyperthyroidism usually develop a variety of signs that may be subtle at first but that become more severe as the disease progresses. Most cats with hyperthyroidism have elevated levels of the thyroid hormone T4 in their bloodstream, but a small percentage of cats with hyperthyroidism have T4 levels within the normal range. Treatment with radioactive iodine is performed at selected specialty veterinary practices. Hyperthyroidism should not be excluded based on a single, normal serum T4 value, especially in a cat with typical clinical signs, a palpable thyroid no… Occasionally complications may develop including damage to the parathyroid glands, which are closely attached to the thyroid gland, damage to nerves close to the thyroid gland or damage to the voice box. It was obvious when to get him put to sleep - he suddenly went downhill one weekend. If both glands are enlarged, they can both be removed, and most cats will still produce enough thyroid hormone by a few thyroid cells scattered throughout the body to prevent hypothyroidism (abnormally low thyroid hormone levels). Blood work may be required every 3 months or every 6 months depending on the severity of the disease and any additional diseases that may be present. aggressive or “cranky” behavior – also caused by increased metabolic rate. Talk to your veterinarian about monitoring kidney function in hyperthyroid cats. Your cat may show hoarseness or completely fade out its voice. Hi my 12 year old cat has lost her voice for over a month now. Urinalysis and/or urine culture and sensitivity – may be done to rule out a kidney or bladder infection that may be artificially decreasing the thyroid level in a hyperthyroid cat. These elevated values could be related to the increased metabolism, malnutrition, infection, congestive heart failure or direct toxic effects of the elevated T4 hormone. Some cats will remain hyperthyroid after surgical removal of the thyroid glands. These cats are often restless because of it. The cat probably became a bit hypothyroid from the anti-thyroid meds and lost his appetite. The cats do not have to be placed under anesthesia for the procedure. Many cats have chronic intermittent vomiting or diarrhea and may be urinating in inappropriate locations. Radioactive iodine treatment of hyperthyroid cats is available at Washington State University. Cats that have had surgery may have recurrence of hyperthyroidism. Choking: First Aid. Iodine is an essential component of thyroid hormone and less dietary iodine means less thyroid hormone is produced. Hyperthyroidism is the most common hormone imbalance in cats. A blood panel and urinalysis are also performed to screen for abnormalities in other organs such as liver and kidney that may be present due to the advanced age of the animal. The cat is given a small dose of a radioactive compound that travels by the blood to the thyroid glands. Radionuclide imaging – allows the visualization of all thyroid tissue. Carbimazole is a relatively safe drug however side effects, though uncommon, can occur. Autoimmune muscle disorders can block the neuromuscular junction and result in voice change or loss. There is more than one medication to treat hyperthyroid cats, it might be worth seeing if a change will help. One might say T3 determines how hard or how fast each cell works to do its job. Both thyroid glands are abnormal in this cat and take up the radioactive compound. Also called thyrotoxicosis, hyperthyroidism is caused by an increase in production of thyroid hormones (known as T3 and T4) from an enlarged thyroid gland in a cats neck. A few cats will become hypothyroid and may need to take thyroid pills. As a cat owner, this is a matter of concern as your cat might have lost voice. Once the hyperthyroidism is controlled (or cured depending on treatments performed – see discussion above on treatment options), your cat will need to have regular bloodwork to monitor for changes in organ function and adverse effects of the medications. Felimazole or Methimazole may produce side effects in cats including depression, vomiting and lack of appetite. These include poor appetite, vomiting, lethargy, jaundice and skin itchiness. The heart may appear enlarged on x-ray or ultrasound and may show abnormal electrical activity on an ECG (electrocardiogram). It is a common disease in cats, and mostly afflicts cats middle-aged and older. 80% of cats will be cured with this method. Some cats will remain hyperthyroid after surgical removal of the thyroid glands. Small kidneys due to concurrent kidney disease from hypertension and increased metabolism. The heart disease will reverse in many cats after successful treatment of hyperthyroidism. It. These cats have thyroid cells in abnormal locations, including inside the chest cavity where surgical removal is difficult. When cats have hypothyroidism, they lose their … To diagnose Graves' disease you need TRab or TSI antibodies tested - … Hyperglycemia to rule out diabetes mellitus. Cats with heart disease may be too sick and fragile to anesthetize for surgery in which case methimazole can be given until the heart improves and the cat is stronger. It's a condition that makes stomach acid wash back up into the esophagus, a tube that leads into your throat. These cats have thyroid cells in abnormal locations, including inside the chest cavity where surgical removal is difficult. The cats do not have to be placed under anesthesia for the procedure. The thyroid gland normally produces thyroid hormones in response to stimulation by the pituitary gland, the \"master gland\" of the body. Methimazole may produce side effects in cats including depression, vomiting and lack of appetite. It is applied to bare skin once or twice a day. The thyroid gland is found in your cat’s neck and uses dietary iodine to make thyroid hormones that help regulate important body functions. just 3.5 weeks ago, he went for his thyroid panel and we had to increase from 4.25 mg to 5 mg. about a week ago he became listless, didn't really eat nor … Pete the Cat is a fun, musically d... Watch more cool videos here: http://bit.ly/35fnDdMSubscribe to Pete the Cat: https://bit.ly/2UtmheBCallie loses her voice. Hyperthyroid cats will have an increased uptake in the thyroid glands making them easier to measure size and function. The importance of nutrition in the treatment of this disease is very important. Senior cats are at a greater risk for developing hyperthyroidism than any other age group of cats. Why is it so Important to Treat Hyperthyroid Cats? In fact, 95% of cats with hyperthyroid disease are 10 years old or older. Heart disease, hypertension (high blood pressure), kidney disease, rapid weight loss, neurologic problems are common diseases seen in cats. Although the cause of feli… Essential to test thyroid antibodies, FT3 and FT4, plus vitamins. Unlike us, colds and flus are not the major reason for voice changes and loss in pets. BPA is found in the coating of the inside of some cans of pet food. The three therapies for the treatment of hyperthyroidism are usually successful. If your cat displays any of these symptoms, contact your veterinarian. Some rare cases of hyperthyroid disease are caused by malignant tumors known as thyroid adenocarcinomas. This (thankfully) only happens in a small number of hyperthyroid cats – often before they are diagnosed and treated. If something like this happens, let us discuss what you should do to help treat your cat with lost voice. A nuclear medicine scan of the thyroid glands. Every cell of the body is affected by T3. the cat … Blood cell counts should be evaluated every 2 weeks during the first 3 months. What you are about to study hyperthyroid cat is really a new concept concerning the cause, and avoidance, of thyroid gland disease. surgical removal of affected thyroid glands. Some owners (and their cats) find it difficult to give pills daily and may decide, after starting anti-thyroid pills, to later have their cat treated with radioactive iodine or surgery. One or both of the glands can enlarge and overproduce thyroi… In most cases, enlargement of thyroid glands is caused by a non-cancerous tumor called an adenoma. Another disadvantage of this type of treatment is cost. Low blood calcium is treated with calcium or vitamin D. Nerve damage causes abnormal size of the pupils of the eyes and droopy eyelids. If your cat does not have elevated T4 levels but your veterinarian still suspects your cat has hyperthyroidism, additional tests may be recommended. It is a good idea to know what they are referring to. Treatment of these cats is a delicate balancing act. This disease emerged in the 1980s but has become so common that a wealth of information is available. While T3 is the active hormone, it turns out that more meaningful information is gained by measuring T4. increased urination – often caused by a condition called medullary washout when there is increased blood flow to the kidneys causing loss of important electrolytes, proteins, and minerals needed for the kidneys to concentrate the urine. If thyroid disease is a possibility, your veterinarian will likely order lab work to check for other geriatric or concurrent diseases. Cats with serious heart disease and hyperthyroidism need to be treated for both diseases. However, the cost of radioactive iodine treatment is less expensive when compared to the cost and frustration for the owner for a lifetime oral medication. Hyperthyroidism can actually improve kidney function by increasing blood flow to the kidneys. Hyperactive thyroid glands accumulate more of the compound than normal glands. High levels of thyroid hormone may cause heart disease. Feline hyperthyroidism occurs due to the development of hyperfunctional thyroid nodules, which are benign. They tend to look scraggly and have poor grooming habits. Increased serum total thyroxine (T4) concentration. It takes several weeks for these medications to reduce blood thyroid hormone levels to normal. Dental Care and What to Expect if your Pet Needs it. A more serious side effect is the development of low blood cell counts which are more likely to develop during the first 3 months of treatment. increased amount of stool or diarrhea – from overeating and hypermotility (increased movement of the intestine). This diet is even more difficult when you have other cats, so you might have to feed it to all of your cats (which is a shame for them, and expensive for you) The average age of cats with hyperthyroidism is 13 years of age; only about 5 % of hyperthyroid cats are younger than 10 years of age. Thyroid hormone levels can vary over time so it may be necessary to check blood levels several times or perform a different test called a T3 suppression test. Frequency of administration is determined by your veterinarian and usually based on T4 blood levels. Last Updated on January 4, 2021 by Julia Wilson. Giving a cat a tablet can be tricky, some cats tolerate it well and others find it stressful. hyperthyroid cat. Cats with serious heart disease and hyperthyroidism need to be treated for both diseases. Dehydration: First Aid. The prognosis for this disease depends on type of treatment selected, progression of the disease when first diagnosed and any underlying diseases that may be present. (330) 332-1880 | 375 W. State St, Salem, OH 44460. increased activity and restlessness – caused by increased metabolic rate – almost like the cat is “on speed”. If you suspect your cat might be experiencing some of these symptoms, the next step is visiting your veterinarian for a blood test to check your cat’s thyroid … Also called thyrotoxicosis, hyperthyroidism is caused by an increase in production of thyroid hormones (known as T3 and T4) from an enlarged thyroid gland in a cat’s neck. Unfortunately the side effects you describe also seem to occur when the cat is under-treated - my old cat ate far better when I was on top of his pilling. Thyroid hormone affects the function of most organs in the body, so the signs of hyperthyroidism are quite variable. There are 2 thyroid glands located in the neck. Blood cell counts should be evaluated every 2 weeks during the first 3 months. This extra thyroid tissue is called ectopic thyroid. occasionally depression – also caused by muscle weakness and muscle wasting. About: Feline hyperthyroidism is a common disease caused by a benign hormone-secreting tumour of the thyroid gland.It is the most common endocrine disorder in cats and occurs most often in cats over ten years of age. In the hyperthyroid cat, at least one lobe is usually prominent and may be detected by your veterinarian during a physical exam. Most hyperthyroid cats have very high levels of hormone but some cats will have signs of hyperthyroidism with normal or only slightly increased levels of thyroid hormone. If your pet has other diseases, one treatment may be better for your cat than another. Neurologic changes due to thiamine deficiency, potassium deficiency, and other vitamin and mineral deficiencies. These signs usually resolve without stopping the medication. Hyperthyroidism is a disease caused by overproduction of thyroxine, a thyroid hormone that increases metabolism in the body. Enlarged thyroid glands can be surgically removed. This extra thyroid tissue is called ectopic thyroid. CBD Use in Pets. Hyperthyroidism is the overproduction of thyroid hormone by the thyroid glands. But with overeating the food in being consumed faster than it can be digested and causes an upset in the bacteria in the intestines. Not all cats experience these signs at the time of diagnosis but they can be present as invisible diseases resulting in heart failure, kidney failure, liver disease, sudden blindness, or sudden death and all can be prevented with timely treatment for thyroid disease. The thyroid glands (there’s one gland on each side of the windpipe) do not produce T3. The cat is given a small dose of a radioactive compound that travels by the blood to the thyroid glands. Pet owners may notice other symptoms, such as a cough, bad breath, or discharge coming from the cat’s eyes and nose. We want to be sure we have the disease controlled and monitor for any other diseases that may develop. Tissues of the body absorb T4 and convert it to T3. Radioactive iodine treatment is very effective and rarely causes hypothyroidism. This extra thyroid tissue is called ectopic thyroid. If ectopic thyroid tissue is seen on the nuclear medicine scan, then a different treatment, either methimazole or radioactive thyroid treatment should be selected. Diagnosis of feline hyperthyroidism is based on: 1. Most (>98%) are a functional adenoma of the thyroid gland and many may well be palpable. Heat intolerance – caused by loss of body fat and muscle wasting/fatigue. Cats that have had surgery may have recurrence of hyperthyroidism. Over Use. Cats with heart disease may be too sick and fragile to anesthetize for surgery in which case felimazole can be given until the heart improves and the cat is stronger. A diagnosis of hyperthyroidism is made when the level of thyroid hormone is increased in the blood. Often there is kidney disease that goes along with hyperthyroidism in the later stages of the disease. This cat is showing weight loss and poor coat – typical signs of hyperthyroidism. Some cats with kidney disease will show a worsening of kidney function after treatment for hyperthyroidism. Damage to the voice box causes a change in voice. Rarely they are associated with malignant thyroid neoplasia. This drug is given once up to three times daily and must be continued for life. Perhaps they have been left in the vets or in a boarding facility and are voicing their indignation, or maybe there is a new cat that has moved in next door and they are … The elevated T4 causes skeletal bone resorption which causes changes in the minerals and possible uremic gastritis which can lead to ulcerated stomachs and intestines. If you and your veterinarian decide that surgery is the best treatment option for your cat, a nuclear medicine scan (described in the diagnosis section) could be performed at a specialty veterinary practice before surgery to see if your cat has ectopic thyroid tissue. Hyperthyroidism is the overproduction of thyroid hormone by the thyroid glands. to look for elevated liver enzymes which are common in hyperthyroid cats. Dysphonia is hoarseness of voice, which can be associated with a damaged trachea, often in the case of hyperthyroidism, due to a mass or tumor on the thyroid. Instead, they produce an inactive form called T4. The hallmark sign is weight loss despite excellent appetite. Complete Blood Cell Count (CBC) – to look for changes in white blood cell counts to check for infection, anemia, dehydration, or changes that indicate on of the other geriatric diseases. The frequency of revisits will depend on your cat’s clinical response. Surgery. Also called thyrotoxicosis, hyperthyroidism is caused by an increase in production of thyroid hormones (known as T3 and T4) from an enlarged thyroid gland in a cat’s neck. Thyroid hormones normally increase chemical processes occurring within the cells of the body, especially those related to meta… This is called “sick” euthyroid syndrome. How does hyperthyroidism affect my cat? This is most often seen in females who are continually calling because they are in a season of heat but can be seen in any cat who has recently been very vocal. Radioactive iodine will also accumulate in ectopic thyroid tissue. Hyperthyroidism occurs most commonly in older cats and is rare in dogs. If blood cell counts decrease methimazole is stopped and another treatment method should be considered. periodic vomiting – from the effects of T4 on the vomiting stimulus to the nervous system and due to distension of the stomach from over-eating. Home Care of Animal with Splints of Casts. Thyroid profile (T4) – elevated T4 levels is a definitive diagnosis of hyperthyroidism. She purrs but nothing else, her breathing is also louder and more frequent ,she has a thyroid problem and has medication for it, she doesn’t seem in any pain,I think there is a problem with … Involvement of both glands is more common than involvement of one gland. Washington State University assumes no liability for injury to you or your pet incurred by following these descriptions or procedures. This diet is lower in salt and iodine and limits the amount of thyroid hormone that is produced. In her overall health and well-being until it becomes severe enough that the cat suddenly... Put to sleep - he suddenly went downhill one weekend they tend to look elevated... Voice change or loss by muscle weakness and muscle wasting before surgery that... Owners, surgical removal of the thyroid gland ( s ) the vet because they are drinking so much.! 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