eMedicine Specialties > Emergency Medicine > Infectious Diseases
Staphylococcal Scalded Skin Syndrome
Updated: Jun 18, 2009
Introduction
Background
Staphylococcal scalded skin syndrome (SSSS), also known as Ritter von Ritterschein disease (in newborns), Ritter disease, and staphylococcal epidermal necrolysis, encompasses a spectrum of superficial blistering skin disorders caused by the exfoliative toxins of some strains of Staphylococcus aureus.
It is a syndrome of acute exfoliation of the skin typically following an erythematous cellulitis. Severity of staphylococcal scalded skin syndrome varies from a few blisters localized to the site of infection to a severe exfoliation affecting almost the entire body.
Pathophysiology
Staphylococcal scalded skin syndrome (SSSS) is caused by an exfoliative toxin produced by roughly 5% of Staphylococcus aureus. As the syndrome evolves, an initial infection occurs, commonly at a site such as the oral or nasal cavities, throat, or umbilicus.1 Epidermolytic toxins are produced by the infecting Staphylococcus species; these toxins act at a remote site leading to a red rash and separation of the epidermis beneath the granular cell layer. Bullae form, and diffuse sheetlike desquamation occurs. Two types of staphylococcal scalded skin syndrome are thought to exist: a localized form, in which there is only patchy involvement of the epidermis, and a generalized form, in which significant areas of are involved, remote from the initial site of infection.
Two exfoliative toxins (ETA and ETB) have been isolated and characterized, but the exact mechanism by which they cause exfoliation had until recently been uncertain. The toxins likely act as proteases that target the protein desmoglein-1 (DG-1), an important cell-to-cell attachment protein found only in the superficial epidermis.2,3,4 The relative quantity of DG-1 in the skin differs with age and may partially explain the increased frequency of staphylococcal scalded skin syndrome in children younger than 5 years. It is theorized that immature renal function in this age group may contribute to impaired clearance of circulating exotoxins, contributing to more extensive disease. Another theory suggests that the exfoliative toxins may possess a superantigenic activity.
The decrease in frequency of staphylococcal scalded skin syndrome (SSSS) in adults is thought to be explained by the presence of antibodies specific for exotoxins and also improved renal clearance of toxins that are produced.
Initial studies suggested that phage lytic group II S aureus (subtypes 3A, 3B, 3C, 55 and 71) were solely responsible for exfoliative toxin production, but it is now known that all phage groups are able to produce exfoliative toxin and cause staphylococcal scalded skin syndrome.
Staphylococcal scalded skin syndrome differs from bullous impetigo. Both are blistering skin diseases caused by staphylococcal exfoliative toxin. However, in bullous impetigo, the exfoliative toxins are restricted to the area of infection, and bacteria can be cultured from the blister contents. In staphylococcal scalded skin syndrome, the exfoliative toxins are spread hematogenously from a localized source potentially causing epidermal damage at distant sites.
Staphylococcal scalded skin syndrome differs from the more severe toxic epidermal necrolysis (TEN), in that the cleavage site in staphylococcal scalded skin syndrome is intraepidermal, as opposed to TEN, which involves necrosis of the full epidermal layer (at the level of the basement membrane).Frequency
United States
Staphylococcal scalded skin syndrome (SSSS) is most common in children and neonates. Staphylococcal scalded skin syndrome is rarer in adults, but it has been described in adults with renal failure, immunologic deficiency, and other chronic illness.5
International
Internationally, predominance is in children as well. Overall incidence is higher in developing countries and wherever the incidence of staphylococcal infections is higher. Additionally, some geographic difference exists in the incidence of staphylococcal strains and the types of exotoxins produced.6
Mortality/Morbidity
The mortality rate from staphylococcal scalded skin syndrome (SSSS) in children is very low (1-5%), unless associated sepsis or an underlying serious medical condition exists. The mortality rate in adults is higher (as high as 50-60%), although this may be a reflection of the underlying disorder, which increased susceptibility to SSSS, and not SSSS itself.7,8,9 Significant morbidity can result from hematologic or local spread of infection.10 Complications are usually the result of sepsis, superinfection, and dehydration or electrolyte imbalance due to denuded skin.
Sex
No gender predilection is documented in children. In adults, the male-to-female ratio is approximately 2:1.
Age
Staphylococcal scalded skin syndrome (SSSS) primarily is a disease of children.
- Children are more at risk because of lack of immunity and immature renal clearance capability (exfoliative toxins are renally excreted). Maternal antibodies transferred to infants in breastmilk are thought to be partially protective, but neonatal disease can still occur possibly as a result of inadequate immunity or immature renal clearance of exotoxin.
- SSSS can occur individually or as outbreaks in nurseries. Outbreaks are usually due to asymptomatic carriers who spread the disease to susceptible individuals.
- Most children (62%) are younger than 2 years, and almost all (98%) are younger than 6 years.
- SSSS is rare in adults, with fewer than 50 cases formally reported in the literature. Adults with SSSS are most often chronically ill, are immunocompromised, or have renal failure. SSSS can also appear in adults in cases with a high burden of staphylococcal infection where the quantity of exotoxin is significant.
Clinical
History
- Staphylococcal scalded skin syndrome (SSSS) presents as a red rash followed by diffuse epidermal exfoliation.
- A prodromal localized S aureus infection of the skin, throat, nose, mouth, umbilicus, or GI tract occurs. Such an infection often is not apparent before the SSSS rash appears.
- General malaise
- Fever
- Irritability
- Skin tenderness
Physical
- Fever, although patients may be afebrile
- Tenderness to palpation
- Warmth to palpation
- Diffuse erythematous rash (see Media file 1)
- Often begins centrally
- Sandpaperlike, progressing into a wrinkled appearance
- Accentuated in flexor creases (see Media file 2)
- Bullae (see Media file 3)
- Flaccid
- Ill-defined
- Nikolsky sign (gentle stroking of the skin causes the skin to separate at the epidermis)11,12
- Exfoliation of skin, which may be patchy or sheetlike in nature (see Media files 4-6)
- Facial edema
- Perioral crusting
- Most patients do not appear severely ill.
- Dehydration may be present and significant.
Causes
- Infection by group 2 phage S aureus (several types) leads to release of exotoxin.
- Exotoxin is a protein and is classified as either type A or B. Most are type A.
- Exotoxin causes separation of the epidermis beneath the granular cell layer.
- Cases of staphylococcal scalded skin syndrome (SSSS) have been reported among infants who have breastfed from mothers with S aureus breast abscess.
- A case has been reported of neonatal staphylococcal scalded skin syndrome secondary to maternal-fetal transmission at birth.
- Outbreaks have been reported in neonatal and newborn nurseries.
- Reports implicating MRSA and community-acquired methicillin Staphylococcus aureus (CA-MRSA) as a cause of staphylococcal scalded skin syndrome are increasing.13,14,15
More on Staphylococcal Scalded Skin Syndrome |
Overview: Staphylococcal Scalded Skin Syndrome |
| Differential Diagnoses & Workup: Staphylococcal Scalded Skin Syndrome |
| Treatment & Medication: Staphylococcal Scalded Skin Syndrome |
| Follow-up: Staphylococcal Scalded Skin Syndrome |
| Multimedia: Staphylococcal Scalded Skin Syndrome |
| References |
| Next Page » |
References
Adhisivam B, Mahadevan S. Abscess of the nasal septum with staphylococcal scalded skin syndrome. Indian Pediatr. Apr 2006;43(4):372-3. [Medline].
Amagai M, Yamaguchi T, Hanakawa Y, Nishifuji K, Sugai M, Stanley JR. Staphylococcal exfoliative toxin B specifically cleaves desmoglein 1. J Invest Dermatol. May 2002;118(5):845-50. [Medline].
Hanakawa Y, Stanley JR. Mechanisms of blister formation by staphylococcal toxins. J Biochem. Dec 2004;136(6):747-50. [Medline].
Ladhani S. Understanding the mechanism of action of the exfoliative toxins of Staphylococcus aureus. FEMS Immunol Med Microbiol. Nov 28 2003;39(2):181-9. [Medline].
Patel GK, Finlay AY. Staphylococcal scalded skin syndrome: diagnosis and management. Am J Clin Dermatol. 2003;4(3):165-75. [Medline].
Murono K, Fujita K, Yoshioka H. Microbiologic characteristics of exfoliative toxin-producing Staphylococcus aureus. Pediatr Infect Dis J. May 1988;7(5):313-5. [Medline].
Decleire PY, Blondiaux G, Delaere B, Glupczynski Y. Staphyloccocal scalded skin syndrome in an adult. Acta Clin Belg. Nov-Dec 2004;59(6):365-8. [Medline].
Oono T, Kanzaki H, Yoshioka T, Arata J. Staphylococcal scalded skin syndrome in an adult. Identification of exfoliative toxin A and B genes by polymerase chain reaction. Dermatology. 1997;195(3):268-70. [Medline].
Shirin S, Gottlieb AB, Stahl EB. Staphylococcal scalded skin syndrome in an immunocompetent adult: possible implication of low-dosage prednisone. Cutis. Nov 1998;62(5):223-4. [Medline].
Wong GW, Oppenheimer SJ, Evans RM, Leung SS, Cheng JC. Pyomyositis and staphylococcal scalded skin syndrome. Acta Paediatr. Jan 1993;82(1):113-5. [Medline].
Moss C, Gupta E. The Nikolsky sign in staphylococcal scalded skin syndrome. Arch Dis Child. Sep 1998;79(3):290. [Medline].
Uzun S, Durdu M. The specificity and sensitivity of Nikolskiy sign in the diagnosis of pemphigus. J Am Acad Dermatol. Mar 2006;54(3):411-5. [Medline].
Acland KM, Darvay A, Griffin C, Aali SA, Russell-Jones R. Staphylococcal scalded skin syndrome in an adult associated with methicillin-resistant Staphylococcus aureus. Br J Dermatol. Mar 1999;140(3):518-20. [Medline].
Ito Y, Funabashi Yoh M, Toda K, Shimazaki M, Nakamura T, Morita E. Staphylococcal scalded-skin syndrome in an adult due to methicillin-resistant Staphylococcus aureus. J Infect Chemother. Sep 2002;8(3):256-61. [Medline].
Noguchi N, Nakaminami H, Nishijima S, Kurokawa I, So H, Sasatsu M. Antimicrobial agent of susceptibilities and antiseptic resistance gene distribution among methicillin-resistant Staphylococcus aureus isolates from patients with impetigo and staphylococcal scalded skin syndrome. J Clin Microbiol. Jun 2006;44(6):2119-25. [Medline].
Baartmans MG, Maas MH, Dokter J. Neonate with staphylococcal scalded skin syndrome. Arch Dis Child Fetal Neonatal Ed. Jan 2006;91(1):F25. [Medline].
Chi CY, Wang SM, Lin HC, Liu CC. A clinical and microbiological comparison of Staphylococcus aureus toxic shock and scalded skin syndromes in children. Clin Infect Dis. Jan 15 2006;42(2):181-5. [Medline].
Cribier B, Piemont Y, Grosshans E. Staphylococcal scalded skin syndrome in adults. A clinical review illustrated with a new case. J Am Acad Dermatol. Feb 1994;30(2 Pt 2):319-24. [Medline].
El Helali N, Carbonne A, Naas T, et al. Nosocomial outbreak of staphylococcal scalded skin syndrome in neonates: epidemiological investigation and control. J Hosp Infect. Oct 2005;61(2):130-8. [Medline].
Ginsburg CM. Staphylococcal toxin syndromes. Pediatr Infect Dis J. Apr 1991;10(4):319-21. [Medline].
Greenwood JE, Dunn KW, Davenport PJ. Experience with severe extensive blistering skin disease in a paediatric burns unit. Burns. Feb 2000;26(1):82-7. [Medline].
Hedrick J. Acute bacterial skin infections in pediatric medicine: current issues in presentation and treatment. Paediatr Drugs. 2003;5 Suppl 1:35-46. [Medline].
Hochman MA, Mayers M. Stevens-Johnson syndrome, epidermolysis bullosa, staphylococcal scalded skin syndrome, and dermatitis herpetiformis. Int Ophthalmol Clin. Spring 1997;37(2):77-92. [Medline].
Johnston GA. Treatment of bullous impetigo and the staphylococcal scalded skin syndrome in infants. Expert Rev Anti Infect Ther. Jun 2004;2(3):439-46. [Medline].
Ladhani S, Evans RW. Staphylococcal scalded skin syndrome. Arch Dis Child. Jan 1998;78(1):85-8. [Medline].
Ladhani S, Joannou CL, Lochrie DP, Evans RW, Poston SM. Clinical, microbial, and biochemical aspects of the exfoliative toxins causing staphylococcal scalded-skin syndrome. Clin Microbiol Rev. Apr 1999;12(2):224-42. [Medline].
Lina G, Gillet Y, Vandenesch F, Jones ME, Floret D, Etienne J. Toxin involvement in staphylococcal scalded skin syndrome. Clin Infect Dis. Dec 1997;25(6):1369-73. [Medline].
Payne AS, Hanakawa Y, Amagai M, Stanley JR. Desmosomes and disease: pemphigus and bullous impetigo. Curr Opin Cell Biol. Oct 2004;16(5):536-43. [Medline].
Prevost G, Couppie P, Monteil H. Staphylococcal epidermolysins. Curr Opin Infect Dis. Apr 2003;16(2):71-6. [Medline].
Resnick SD. Staphylococcal toxin-mediated syndromes in childhood. Semin Dermatol. Mar 1992;11(1):11-8. [Medline].
Rodriguez Prieto MA, Manchado Lopez P, Ruiz Gonzalez I. Toxic epidermal necrolysis associated with scalded skin syndrome in an adult. Int J Dermatol. Nov 1997;36(11):875-6. [Medline].
Shelley ED, Shelley WB, Talanin NY. Chronic staphylococcal scalded skin syndrome. Br J Dermatol. Aug 1998;139(2):319-24. [Medline].
Veien NK. The clinician's choice of antibiotics in the treatment of bacterial skin infection. Br J Dermatol. Dec 1998;139 Suppl 53:30-6. [Medline].
Whittock NV, Bower C. Targetting of desmoglein 1 in inherited and acquired skin diseases. Clin Exp Dermatol. Jul 2003;28(4):410-5. [Medline].
Williams RE, MacKie RM. The staphylococci. Importance of their control in the management of skin disease. Dermatol Clin. Jan 1993;11(1):201-6. [Medline].
Wooldridge WE. Managing skin infections in children. Postgrad Med. Mar 1991;89(4):109-12. [Medline].
Yamasaki O, Yamaguchi T, Sugai M, et al. Clinical manifestations of staphylococcal scalded-skin syndrome depend on serotypes of exfoliative toxins. J Clin Microbiol. Apr 2005;43(4):1890-3. [Medline].
Further Reading
Keywords
staphylococcal scalded skin syndrome, SSSS, blistering skin, Ritter von Ritterschein disease, Ritter disease, Ritter’s disease, Lyell disease, Lyell’s disease, skin disease, skin condition, treatment, symptoms, causes, exfoliative toxins, toxin-mediated syndrome, staphylococcal epidermal necrolysis, acute exfoliation of the skin, staphylococcal infection, erythematous cellulitis, phage group 2 Staphylococcus aureus, S aureus, epidermolytic toxins






Overview: Staphylococcal Scalded Skin Syndrome