This article is about cystitis in cats (or feline idiopathic cystitis) which is a sterile condition and does not involve a primary urinary tract infection. For the human urinary disease, cystitis, which always involves a bacterial infection, see urinary tract infection.
Feline idiopathic cystitis (FIC) or feline interstitial cystitis or cystitis in cats, is one of the most frequently observed forms of feline lower urinary tract disease (FLUTD). Feline cystitis means "inflammation of the bladder in cats". The term idiopathic means unknown cause; however, certain behaviours have been known to aggravate the illness once it has been initiated. It can affect both males and females of any breed of cat. It is more commonly found in female cats; however, when males do exhibit cystitis, it is usually more dangerous.[1]
Despite the shared terminology, cases of feline idiopathic cystitis, as opposed to human cystitis episodes, are sterile. In other words, they do not involve a primary bacterial infection. If upon investigation the inflammation of the feline bladder is in fact found to be the result of an infection, then it is described as a feline urinary tract infection (UTI) or less commonly, feline bacterial cystitis. In cats under the age of 10 years old, FIC is the most common urinary disease seen in cats and UTIs are very rarely encountered.[2][3] However, in cats over 10 years of age, UTIs are much more common and idiopathic cases are much less frequently observed.[4] On the other hand, FIC does show several similarities to an analogous disease in humans called bladder pain syndrome.[5][6]
^Cannon M, Forster-van Hijfte M (2006). Feline Medicine: a practical guide for veterinary nurses and technicians. Elsevier Sciences. ISBN 9780750688277.
^"Cat Urinary Tract Problems". Purina.
^Longstaff L, Gruffydd-Jones TJ, Buffington CT, Casey RA, Murray JK (June 2017). "Owner-reported lower urinary tract signs in a cohort of young cats". Journal of Feline Medicine and Surgery. 19 (6): 609–618. doi:10.1177/1098612X16643123. hdl:1983/a703d62a-8b70-4bf8-94be-5fd215db58f5. PMID 27102690. S2CID 206693086.
^Chew D (2007-08-19). "Non-obstructive Idiopathic/Interstitial Cystitis in Cats: Thinking Outside the (Litter) Box". World Small Animal Veterinary Association World Congress Proceedings, 2007.
^Cook JL, Arnoczky SP (2015-03-30). "World Small Animal Veterinary Association World Congress Proceedings, 2013". VIN.com.
^Treutlein G, Deeg CA, Hauck SM, Amann B, Hartmann K, Dorsch R (December 2013). "Follow-up protein profiles in urine samples during the course of obstructive feline idiopathic cystitis". Veterinary Journal. 198 (3): 625–30. doi:10.1016/j.tvjl.2013.09.015. PMID 24257070.
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