Chronic Renal Failure (CRF)

 

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This Hot Topic is one I had to deal with—chronic renal failure, or kidney disease. CRF is a very common disease among older cats. Some experts say screening for kidney disease should be done annually after the age of seven because symptoms are very hard to spot until the disease has progressed quite a bit. Read on for more information about this condition.

Medical Information

Testing is especially important for management of CRF because symptoms sometimes aren't noticed until the disease is fairly far along. There are several indicators in a cat's blood and urine that lead to an initial diagnosis of chronic renal failure (or renal insufficiency, the earlier stage of the disease) and understanding of the progression of the disease. Especially if your cat is over seven years old, consider screening her today for kidney disease and get a $10 rebate toward the cost of the test, courtesy of Hill's Pet Nutrition.

There is also some concern now that dental health plays a part in the development and progression of kidney disease. Poor dental hygiene can lead to low-level infections which can lead to bigger problems. If possible, learn to brush Kitty's teeth (easier said than done, I know) and/or have her teeth cleaned regularly by the veterinarian.

Helpful medical information sites include:

bulletACE Inhibitors and CRF Cats (this page has useful information on a form of treatment currently much more common in the UK and Commonwealth and European countries than in the US)
bulletCalcitrol for Dogs and Cats—Reference Page (this page is full of information on this treatment common in CRF cats)
bulletChronic Kidney (Renal) Failure in Cats (Feline Advisory Bureau)
bulletEmma's Top Thirteen Weapons in the Fight Against Chronic Renal Failure (one cat's suggestions for medications and treatments to help CRF cats)
bulletFeline Chronic Renal Failure Information Center (a great source for information on testing, management of the disease, and the emotional roller coaster a caregiver goes through)
bulletThe Feline Kidney
bulletHow to Analyze CRF Blood Test Results
bulletMerck Veterinary Manual on CRF:  Medical condition and Treatment
bulletTanya's UK Feline Chronic Renal Failure Information Centre (another great source for both medical and emotional information and support, including sections on saying goodbye and the final hours)

Home Health Care

The one thing that perhaps scares people the most when they find out their cat has CRF is the idea of administering subcutaneous (sub-q) fluids themselves at home. There are several good sources available that make the process a little easier by clearly explaining and illustrating the procedure.

bullet Administration of Subcutaneous Fluids at Home (VeterinaryPartner.com)
bulletGiving Subcutaneous Fluids to a Cat (Washington State University)
bulletFluid Therapy (Tanya's UK Feline CRF Info Centre)
bulletSubcutaneous Fluid Therapy (Feline CRF Info Center)

Most cats seem to tolerate sub-q fluids well, but some people find that their cat is so stressed by fluids injected this way that it starts to affect their otherwise loving, close relationship. One alternative is the GIF-tube, an implanted tube that lets you administer fluids without using a needle. It's safe to leave in the body for up to one year.

 

Support Groups and Personal Stories

The Feline CRF Support Group has an email list that is extremely helpful to caretakers of CRF cats, with advice, details of other people's experiences, and sharing of information and comfort that makes dealing with this chronic disease much easier. There is also an archive of documents on issues such as administering subcutaneous fluids. The GIF-Tube group is specifically for users of that device.

bulletFeline Chronic Renal Failure Support Group
bulletCRF GIF-Tube Users Forum

There are many individual sites set up by people taking care of CRF cats. These are just a few personal stories and tributes:

bulletSuccess Stories
bulletSurrounded by Cats
bulletTanya and Thomas
bulletTributes to CRF Cats

 

Products

Food

Talk to your vet about what dietary restrictions your cat should have. Many vets recommend food lower in protein and phosphorous than regular commercial foods. Some of these foods may be prescription diets, meaning you can only get them through a veterinary office. Others are available in some pet supply stores or online.

These two charts help you find out which foods might be more appropriate for your CRF cat:

bullet

Canned Cat Food Nutritional Chart

bullet

Dry Cat Food Nutritional Chart

Some of the non-prescription premium foods that show well on the above charts are available from online stores such as:

bullet Adams Pet Supplies
bulletPet Food Express
bullet

PetFoodDirect.com

bullet

Waggintails

 

Medical Supplies

Before you purchase medical supplies, you need to talk to your vet about your cat's particular needs and find out if they will write you a prescription for the fluid bags, needles, and IV admin sets you'll need for giving subcutaneous fluids at home.

David Jacobson put together this invaluable reference to sources for CRF supplies:

bulletMail Order Supplies For Cats With Chronic Renal Failure

 

Incontinence Supplies

CRF kitties, and other cats from time to time, may have problems with missing the litter box. Some people have found that large bed pads, sold as incontinence products, can protect the area around the box. Don't use the "piddle pads" sold for housebreaking puppies—these are scented to attract animals and make them want to wet on the pads. Your goal is to keep the wetting inside the litter box but protect the area around it when that doesn't quite work. You buy in bulk from some of these sources, but that can save you a lot of money:

bullet CarePathways.com
bullet Devoted Medical Supply
bulletDirect Medical
bullet Drugstore.com

And here's a product designed specifically for cats:

bulletCatPaper

 

Articles, Technical Papers, Coursework

bullet Assessment of Renal Function: What Can Be Done In Practice (World Small Animal Veterinary Association World Congress, 2002)
bulletChronic Renal Failure lecture notes (College of Veterinary Medicine, St. Paul, MN)
bulletChronic Renal Failure lectures (University of Wisconsin)
bullet Chronic Renal Failure presentation (Ohio State University College of Veterinary Medicine)
bulletDiagnosis and Management of Chronic Renal Failure in Cats
bullet Effect of Benazepril in Chronic Renal Insufficiency in Cats: Interim Results from the Benric Clinical Trial (World Small Animal Veterinary Association World Congress, 2002)
bullet Effects of Methimazole on Renal Function in Cats With Hyperthyroidism
bulletManagement of Feline Chronic Renal Failure
bulletProlonging the Life of the Feline Renal Failure Patient
bullet Recent Advances in the Dietary Management of Chronic Renal Failure in Cats (World Small Animal Veterinary Association World Congress, 2001)
bullet"When Kitty's Kidneys Go Bad," CatWatch, July 2003 (not available online)

 

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Last modified: 9/22/2007