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Author: Dr Amanda Oakley, Dermatologist, Waikato Hospital, Hamilton, New Zealand, 2002; Updated, 2014. Reviewed and further updated by Jannet Gomez, Postgraduate Student in Clinical Dermatology, Queen Mary University, London, United Kingdom, January 2016.
Staphylococcal scalded skin syndrome (SSSS) is an illness characterised by red blistering skin that looks like a burn or scald, hence its name staphylococcal scalded skin syndrome. SSSS is caused by the release of two exotoxins (epidermolytic toxins A and B) from toxigenic strains of the bacteria Staphylococcus aureus. Desmosomes are the part of the skin cell responsible for adhering to the adjacent skin cell. The toxins bind to a molecule within the desmosome called Desmoglein 1 and break it up so the skin cells become unstuck.
SSSS has also been called Ritter disease or Lyell disease when it appears in newborns or young infants.
SSSS occurs mostly in children younger than 5 years, particularly neonates (newborn babies). Lifelong protective antibodies against staphylococcal exotoxins are usually acquired during childhood which makes SSSS much less common in older children and adults. Lack of specific immunity to the toxins and an immature renal clearance system (toxins are primarily cleared from the body through the kidneys) make neonates the most at risk.
Immunocompromised individuals and individuals with renal failure, regardless of age, may also be at risk of SSSS.
SSSS starts from a localised staphylococcal infection that is a producer of the two causative exotoxins (epidermolytic toxins A and B). Outbreaks of SSSS often occur in childcare facilities. An asymptomatic adult carrier of Staphylococcus aureus introduces the bacteria into the nursery. About 15-40% of healthy humans are carriers of Staphylococcus aureus, that is, they have the bacteria on their skin without any sign of infection or disease (colonisation). However, staphylococcal skin infections are seen commonly in infants and younger children, thus an obvious increased risk of SSSS. Staphylococcus aureus is also commonly found in infections of the throat, ears and eyes.
SSSS usually starts with fever, irritability and widespread redness of the skin. Within 24-48 hours fluid-filled blisters form. These rupture easily, leaving an area that looks like a burn.
Characteristics of the SSSS rash include:
Other symptoms may include tender and painful areas around the infection site, weakness, and dehydration.
Diagnosis of SSSS depends on:
Treatment of SSSS usually requires hospitalisation, as intravenous antibiotics are generally necessary to eradicate the staphylococcal infection. A penicillinase-resistant, anti-staphylococcal antibiotic such as flucloxacillin is used. Other antibiotics include nafcillin, oxacillin, cephalosporin and clindamycin. Vancomycin is used in infections suspected with methicillin resistance (MRSA). Depending on response to treatment, oral antibiotics can be substituted within several days. The patient may be discharged from hospital to continue treatment at home.
Corticosteroids slow down healing and hence are not given to patients with SSSS.
Other supportive treatments for SSSS include:
Although the outward signs of SSSS look bad, children generally recover well and healing is usually complete within 5–7 days of starting treatment.
SSSS usually follows a benign course when diagnosed and treated appropriately. However, if left untreated or treatment is unsuccessful, severe infections such as sepsis, cellulitis, and pneumonia may develop. Death can follow severe infection.
If there is an outbreak of SSSS in either a neonatal care unit or childcare facility, the possibility of a staphylococcal carrier in the vicinity should be investigated. Identification of the healthcare worker, childcare worker, parent or visitor colonised or infected with Staphylococcus aureus is key to managing the problem. Once identified these individuals should be treated with oral antibiotics to eradicate the causative organism. To prevent further infections these places should employ strict hand washing with antibacterial soap or sanitisers.
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