Cystitis 738172 221989638 2008-06-27T00:52:18Z Sabedon 2083035 /* External links */ [[Category:Microbiology]] {{DiseaseDisorder infobox | Name = Cystitis | ICD10 = {{ICD10|N|30||n|30}} | ICD9 = {{ICD9|595}} | ICDO = | Image = | Caption = | OMIM = | MedlinePlus = | eMedicineSubj = | eMedicineTopic = | DiseasesDB = 29445 | }} '''Cystitis''' is [[inflammation]] of the [[urinary bladder]]. The condition more often affects women, but can affect either gender and all age groups. ==Types== There are several types of cystitis: * [[bacterial cystitis]], the most common type, which is most often caused by [[Escherichia coli|coliform]] [[bacteria]] being transferred from the [[intestine|bowel]] through the [[urethra]] into the bladder * [[interstitial cystitis]] (IC) is considered more of an injury to the bladder resulting in constant irritation and rarely involves the presence of infection. IC patients are often misdiagnosed with UTI/cystitis for years before they are told that their urine cultures are negative. Antibiotics are not used in the treatment of IC. The cause of IC is unknown, though some suspect it may be autoimmune where the immune system attacks the bladder. However, there is hope. Several therapies are now available. * eosinophilic cystitis is a rare form of cystitis that is diagnosed via biopsy. In these cases, the bladder wall is infiltrated with a high number of eosinophils. The cause of EC is also unknown though it has been triggered in children by certain medications. Some consider it a form of interstitial cystitis. * radiation cystitis often occurs in patients undergoing radiation for the treatment of cancer. * [[hemorrhagic cystitis]] ==Causes, incidence and risk factors== Cystitis occurs when the normally sterile lower urinary tract ([[urethra]] and [[urinary bladder|bladder]]) is infected by bacteria and becomes irritated and inflamed. It is very common.{{Fact|date=October 2007}} The condition frequently affects sexually active women ages 20 to 50 but may also occur in those who are not sexually active or in young girls. Older adults are also at high risk for developing cystitis, with the incidence in the elderly being much higher than in younger people. Cystitis is rare in males. Females are more prone to the development of cystitis because of their relatively shorter urethra&mdash;bacteria do not have to travel as far to enter the bladder&mdash;and because of the relatively short distance between the opening of the [[urethra]] and the [[anus]].<ref>Page 124, Samir Mehta ''Step-Up to the Bedside: A Case-Based Review for the USMLE'', 2nd edition (September 1, 2006). Wolters Kluwer Health. ISBN 0781779642. Accessed online (November 29, 2007) at http://books.google.com/books?as_isbn=0781779642 </ref> However it is not an exclusively female disease. More than 85% of cases of cystitis are caused by ''[[escherichia coli]] ("E. coli")'', a bacterium found in the [[lower gastrointestinal tract]]. Sexual intercourse may increase the risk of cystitis because bacteria can be introduced into the bladder through the urethra during sexual activity. Once bacteria enter the bladder, they are normally removed through urination. When bacteria multiply faster than they are removed by urination, infection results. Risks for cystitis include obstruction of the bladder or urethra with resultant stagnation of urine, insertion of instruments into the urinary tract (such as [[catheterization]] or [[cystoscopy]]), [[pregnancy]], [[diabetes]], and a history of analgesic [[nephropathy]] or reflux nephropathy. The elderly of both sexes are at increased risk for developing cystitis due to incomplete emptying of the bladder associated with such conditions as [[benign prostatic hyperplasia]] (BPH), [[prostatitis]] and [[urethral stricture]]s. Also, lack of adequate fluids, [[Fecal incontinence|bowel incontinence]], immobility or decreased mobility and placement in a nursing home are situations which put people at increased risk for cystitis. ==Symptoms== * Pressure in the lower pelvis * Painful urination ([[dysuria]]) * Frequent or urgent need to urinate * Need to urinate at night ([[nocturia]], similar to prostate cancer or BPH) * Abnormal urine color (cloudy), similar to a urinary tract infection * Blood in the urine ([[hematuria]]) (similar to a female's period or bladder cancer) * Foul or strong urine odor ==Signs and Tests== * A [[urinalysis]] commonly reveals white blood cells (WBCs) or red blood cells (RBCs). * A urine culture (clean catch) or catheterized urine specimen may be performed to determine the type of bacteria in the urine and the appropriate antibiotic for treatment. ==Treatment== Because of the risk of the infection spreading to the kidneys (complicated [[Urinary tract infection|UTI]]) and due to the high complication rate in the elderly population and in diabetics, prompt treatment is almost always recommended. It is advised to avoid vaginal penetration until the infection has cleared up. === Medication === Antibiotics are used to control bacterial infection. It is vital that one finish an entire course of prescribed antibiotics. However, cystitis can also be treated with over-the-counter medicines, where self-treatment is appropriate. Commonly used antibiotics include: * [[Nitrofurantoin]] * [[Trimethoprim-sulfamethoxazole]] * [[Amoxicillin]] * [[Cephalosporins]] * [[Ciprofloxacin]] or [[levofloxacin]] * [[Doxycycline]] The choice of antibiotic should preferably be guided by the result of urine culture. Chronic or recurrent UTI should be treated thoroughly because of the chance of kidney infection ([[pyelonephritis]]). Antibiotics control the bacterial infection. They may be required for long periods of time. [[Prophylactic]] low-dose antibiotics are sometimes recommended after acute symptoms have subsided. [[Pyridium]] may be used to reduce the burning and urgency associated with cystitis. In addition, common substances that contain weak acids such as ascorbic acid or cranberry juice, act as weak buffers in the urine rendering it less acidic and thus reduce pain on urination. An effective, but old fashioned treatment (that seems to have been forgotten) is a salt water douche. Dissolve plenty of salt in warm water and bathe the affected region until symptoms subside. === Monitoring === Follow-up may include urine cultures to ensure that bacteria are no longer present in the bladder. ==Outcomes== Most cases of cystitis are uncomfortable but disappear without complication after treatment. ===Possible complications=== * Chronic or recurrent urinary tract infection * Complicated UTI ([[pyelonephritis]]) * Acute renal failure ==Prevention== Keeping the genital area clean and remembering to wipe from front to back may reduce the chance of introducing bacteria from the rectal area to the urethra. Increasing the intake of fluids may allow frequent urination to flush the bacteria from the bladder. Urinating immediately after sexual intercourse may help eliminate any bacteria that may have been introduced during intercourse. Refraining from urinating for long periods of time may allow bacteria time to multiply, so frequent urinating may reduce risk of cystitis in those who are prone to urinary tract infections. Drinking cranberry juice prevents certain types of bacteria from attaching to the wall of the bladder and may lessen the chance of infection. <ref>[http://nutrition.about.com/od/dietsformedicaldisorders/f/cranberryjuice.htm Nutrition About.com]</ref> Cranberry extract tablets have also been found to be effective in preventing cystitis and avoiding the taste of cranberry juice (which some find unpleasant). {{Fact|date=October 2007}} ==References== {{reflist}} ==External links== *[http://www.gesundheitsinformation.de/uncomplicated-urinary-infections-how-do-short-and-long-courses-of.234.129.en.html Uncomplicated urinary infections: How do short and long courses of antibiotics compare?] informedhealthonline.org *[http://www.ic-network.com/ Interstitial Cystitis Network (ICN)] *[http://www.canadaic.com/ Canada IC & OAB Resource Center] *[http://www.icadvice.com/ Interstitial Cystitis Advice (A Patient Based Community for People with IC)] {{Nephrology}} . [[Category:Diseases]] [[Category:Medical terms]] [[Category:Inflammations]] [[Category:Microbiology]] [[br:C'hwezigellad]] [[bg:Цистит]] [[de:Zystitis]] [[et:Tsüstiit]] [[es:Cistitis]] [[fr:Cystite]] [[it:Cistite]] [[he:דלקת שלפוחית השתן]] [[lt:Cistitas]] [[mk:Цистит]] [[nl:Blaasontsteking]] [[pl:Zapalenie pęcherza moczowego]] [[pt:Cistite]] [[ru:Цистит]] [[fi:Virtsarakontulehdus]] [[sv:Nedre urinvägsinfektion]] [[uk:Цистит]] [[zh:膀胱炎]]