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Toxic shock syndrome Reference – Symptoms, Diagnosis, Treatments
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Toxic shock syndrome Reference – Symptoms, Diagnoses, Treatments
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Toxic shock syndrome-From Wikipedia, the free encyclopedia
Toxic shock syndrome Classification & external resources ICD-10 A48.3 ICD-9 040.82 Toxic shock syndrome (TSS) is a rare but potentially fatal disease caused by a bacterial toxin. Different bacterial toxins may cause toxic shock syndrome, depending on the situation. The causative agent is Staphylococcus aureus. A similar condition, called Toxic Shock Like Syndrome (TSLS), is the result of Streptococcus pyogenes infection. TSLS is also referred to as Streptococcal TSS.
Contents 1 Routes of infection 2 History 2.1 Initial description of toxic shock syndrome 2.2 Rely tampons 3 Symptoms and diagnosis 4 Pathogenesis 5 Therapy 6 See also 7 References 8 External links
Routes of infection This infection can occur via the skin (e.g. cuts, surgery, burns), vagina (via tampon), or pharynx. However, most of the large number of individuals who are exposed to or colonized with toxin-producing strains of S. aureus or S. pyogenes do not develop toxic shock syndrome. One reason is that a large fraction of the population has protective antibodies against the toxins that cause TSS.[1] It is not clear why the antibodies are present in people who have never had the disease.
The number of reported staphylococcal toxic shock syndrome cases has decreased significantly in recent years. Approximately half the cases of staphylococcal TSS reported today are associated with tampon use during menstruation, usually in young women, though TSS also occurs in children, men, and non-menstruating women. In the US in 1997, only five confirmed menstrual-related TSS cases were reported, compared with 814 cases in 1980, according to data from the Centers for Disease Control and Prevention (CDC).[2] It has been estimated that each year 1 to 17 of every 100,000 menstruating females will get TSS.[3]
Although scientists have recognized an association between TSS and tampon use, no firm causal link has been established. Research conducted by the CDC suggested that use of some high absorbency tampons increased the risk of TSS in menstruating women. A few specific tampon designs and high absorbency tampon materials were also found to have some association with increased risk of TSS. These products and materials are no longer used in tampons sold in the U.S. (The materials include polyester, carboxymethylcellulose and polyacrylate).[4] Tampons made with rayon do not appear to have a higher risk of TSS than cotton tampons of similar absorbency.[5]
Toxin production by S. aureus requires a protein-rich environment, which is provided by the flow of menstrual blood, a neutral vaginal pH, which occurs during menstruation, and elevated oxygen levels, which is provided by the tampon that is inserted into the normally anaerobic vaginal environment.[6] Although ulcerations have been reported in women using super absorbent tampons, the link to menstrual TSS, if any, is unclear. The toxin implicated in menstrual TSS is capable of entering the bloodstream by crossing the vaginal wall in the absence of ulcerations.[7] Women may avoid problems by choosing a tampon with the minimum absorbency needed to control menstrual flow and using tampons only during active menstruation. Alternately, a woman may choose to use a different kind of menstrual product that may eliminate or reduce the risk of TSS, such as sanitary napkins or a menstrual cup.
History
Initial description of toxic shock syndrome The term toxic shock syndrome was first used in 1978 to describe the staphylococcal illness in three boys and four girls aged 8-17 years.[8] Even though S. aureus was isolated from mucosal sites from the patients, bacteria could not be isolated from the blood, cerebrospinal fluid, or urine, raising suspicion that a toxin was involved. The authors of the study noted that reports of similar staphylococcal illnesses had appeared occasionally as far back as 1927. Most notably, the authors at the time failed to consider the possibility of a connection between toxic shock syndrome and tampon use, as three of the girls who were menstruating when the illness developed were using tampons.[9]
Rely tampons
Package of Rely TamponsFollowing a controversial period of test marketing in Rochester, New York and Fort Wayne, Indiana[10], in August of 1978 Procter and Gamble introduced superabsorbent Rely tampons to the United States market[11] in response to women's demands for tampons that could contain an entire menstrual flow without leaking or replacement.[4] Rely used carboxymethylcellulose (CMC) and compressed beads of polyester for absorption. This tampon design could absorb nearly 20 times its own weight in fluid[12] . Further, the tampon would "blossom" into a cup shape in the vagina in order to hold menstrual fluids.
In January 1980, epidemiologists in Wisconsin and Minnesota reported the appearance of TSS, mostly in menstruating women, to the CDC.[13] S. aureus was successfully cultured from most of the women. A CDC task force investigated the epidemic as the number of reported cases rose throughout the summer of 1980, accompanied by widespread publicity. In September 1980, the CDC reported that users of Rely were at increased risk for developing TSS.[14]
On September 22, 1980, Procter and Gamble recalled Rely[15] following release of the CDC report. As part of the voluntary recall, Procter and Gamble entered into a consent agreement with the FDA "providing for a program for notification to consumers and retrieval of the product from the market".[16] However, it was clear to other investigators that Rely was not the only culprit. Other regions of the United States saw increases of menstrual TSS before Rely was introduced.[17] It was shown later that higher absorbency of tampons was associated with an increased the risk for TSS, regardlesss of the chemical composition or the brand of the tampon. The sole exception was Rely, for which the risk for TSS was still higher when corrected for its absorbency.[18] The ability of carboxymethylcellulose to filter the S. aureus toxin that causes TSS may account for the increased risk associated with Rely.[12]
By the end of 1980, the number of TSS cases reported to the CDC began to decline. The reduced incidence was attributed not only to the removal of Rely from the market, but also from the diminished use of all tampon brands. According to the Boston Women's Health Book Collective, 942 women were diagnosed with tampon-related TSS in the USA from the March 1980 to March 1981, 40 of whom died.[19]
Symptoms and diagnosis Symptoms of toxic shock syndrome vary depending on the underlying cause. In either case, diagnosis is based strictly upon CDC criteria modified in 1981 after the initial surge in tampon-associated infections.[1] TSS resultant of infection with the bacteria Staphylococcus aureus typically manifests in otherwise healthy individuals with high fever, accompanied by low blood pressure, malaise and confusion, which can rapidly progress to stupor, coma, and multi-organ failure. The characteristic rash, often seen early in the course of illness, resembles a sunburn, and can involve any region of the body, including the lips, mouth, eyes, palms and soles. In patients who survive the initial onslaught of the infection, the rash desquamates, or peels off, after 10–14 days.
In contrast, TSLS is caused by the bacteria Streptococcus pyogenes, and it typically presents in people with pre-existing skin infections with the bacteria. These individuals often experience severe pain at the site of the skin infection, followed by rapid progression of symptoms as described above for TSS. In contrast to TSS caused by Staphylococcus, Streptococcal TSS less often involves a sunburn-rash.
Diagnosis of TSS and TSLS are strictly based on CDC criteria; in general, the presence of high fevers, low blood pressure, confusion, and laboratory evidence of organ failure in the appropriate historical setting (e.g. menstruating woman using tampon, or young individual with pre-existing skin infection), are necessary to make the diagnosis.
Pathogenesis In both Toxic shock syndrome (caused by S. aureus) and Toxic Shock-Like Syndrome (caused by S. pyogenes), disease progression stems from a superantigen toxin that allows the non-specific binding of MHC II with T-cell receptors, resulting in polyclonal T-cell activation.
Therapy Women wearing a tampon at the onset of symptoms should remove it immediately. The severity of this disease results in hospitalization for treatment. Antibiotic treatment consists of penicillin and clindamycin.
One of the symptoms of streptococcal toxic shock syndrome is extreme infection of the skin and deeper parts is called necrotizing fasciitis. This often requires prompt surgical treatment.
With proper treatment, patients usually recover in two to three weeks. The condition, however, can be fatal within hours. Sometimes it is required that patients are admitted to the intensive care unit for supportive care in case of multiple organ failure.
See also Necrotizing fasciitis Septic shock
References ^ McCormick J, Yarwood J, Schlievert P. "Toxic shock syndrome and bacterial superantigens: an update". Annu Rev Microbiol 55: 77-104. PMID 11544350. ^ Center for Devices and Radiological Health, U.S. Food and Drug Administration, Consumer information (Jul 23, 1999) Tampons and Asbestos, Dioxin, & Toxic Shock Syndrome PDF ^ Stayfree - FAQ About Toxic Shock Syndrome (TSS) (2006). Retrieved on 2006 October 13. ^ a b Citrinbaum, Joanna (Oct. 14, 2003). The question's absorbing: 'Are tampons little white lies?'. The Digital Collegian. Retrieved on 2006 March 20. ^ Parsonnet J, Modern P, Giacobbe K (1996). "Effect of tampon composition on production of toxic shock syndrome toxin-1 by Staphylococcus aureus in vitro". J Infect Dis 173 (1): 98-103. PMID 8537689. ^ McCormick J, Yarwood J, Schlievert P. "Toxic shock syndrome and bacterial superantigens: an update". Annu Rev Microbiol 55: 77-104. PMID 11544350. ^ Schlievert P, Jablonski L, Roggiani M, Sadler I, Callantine S, Mitchell D, Ohlendorf D, Bohach G (2000). "Pyrogenic toxin superantigen site specificity in toxic shock syndrome and food poisoning in animals". Infect Immun 68 (6): 3630-4. PMID 10816521. ^ Todd J, Fishaut M, Kapral F, Welch T (1978). "Toxic-shock syndrome associated with phage-group-I staphylococci". Lancet 2 (8100): 1116-1118. PMID 82681. ^ Todd J (1981). "Toxic shock syndrome--scientific uncertainty and the public media". Pediatrics 67 (6): 921-923. PMID 7232057. ^ Finley, Harry. Rely Tampon: It Even Absorbed the Worry!. Museum of Menstruation. Retrieved on 2006 March 20. ^ Hanrahan S (1994). "Historical review of menstrual toxic shock syndrome". Women Health 21 (2-3): 141-65. PMID 8073784. ^ a b Vitale, Sidra (1997). Toxic Shock Syndrome. Web by Women, for Women. Retrieved on 2006 March 20. ^ CDC 1980. "Toxic-shock syndrome--United States." MMWR 29(20):229-230. ^ CDC 1980. "Follow-up on toxic-shock syndrome." MMWR 29(37):441-445. ^ Hanrahan S (1994). "Historical review of menstrual toxic shock syndrome". Women Health 21 (2-3): 141-165. PMID 8073784. ^ Kohen, Jamie (2001). The History and Regulation of Menstrual Tampons. RTF document. Retrieved on 2006 March 30. ^ Petitti D, Reingold A, Chin J (1986). "The incidence of toxic shock syndrome in Northern California. 1972 through 1983". JAMA 255 (3): 368-72. PMID 3941516. ^ Berkley S, Hightower A, Broome C, Reingold A (1987). "The relationship of tampon characteristics to menstrual toxic shock syndrome". JAMA 258 (7): 917-20. PMID 3613021. ^ (October 2004) in Mandell GL, Owen, Cheatham R, Bennett JE, Bethesda and Dolin R: Principles and Practice of Infectious Diseases, 6th, Churchill Livingstone. ISBN 0-443-06673-6. Retrieved during 2005. ..
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