Impetigo infection

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'Impetigo' is a contagious skin infection affecting the surface layers of the skin. It is relatively common, affects children and adults, and is spreading rapidly, especially in children's groups.

Etiology and pathogenesis[edit | edit source]

Impetigo is a bacterial disease caused by either the Streptococcus pyogenes or Staphylococcus aureus bacteria. According to the causing agent, we distinguish between three forms:

  • 'Maculovesicular' - streptococcal;
  • 'Bullous' - staphylococcal - bullae are formed by cleavage of the epidermis by staphylococcal exotoxins - exfoliatins (A and B);
  • Impetigo lesions on the forearm
    'Mixed' - streptococcal and staphylococcal infection. It is the most common.

Clinical course[edit | edit source]

Impetigo skin lesions
  • 'Maculovesicular' form begins with red macules, which gradually turn into blisters. Initially, the serous contents become cloudy and a pustule is formed. Pustules can resemble acne. The pustules crack and honey-yellow crusts form from the dried secretion.
  • 'Bullous' form is characterized by large blisters that rupture rapidly, leaving red wetting deposits. Impetigo can occur anywhere on the body, but the most common location is the face.

Diagnosis[edit | edit source]

The diagnosis is made according to the characteristic clinical course. In unclear cases, a bacteriological examination is performed. Differential diagnosis:

Treatment[edit | edit source]

  • Application of antiseptic solutions or ointments (mupirocin, fusidic acid, bacitracin);
  • Gentle crust removal with keratolytic gauze ointments (Saloxyl unguentum containing salicylic acid);
  • Hygienic measures preventing transmission (own towels, bed linen, etc.);
  • Treat all lesions at once;
  • Minimize friction with clothing or bandages (easy abrasion infection);
  • General therapy in case of failure of local treatment or extensive manifestations (general antibiotic therapy);
  • When group A streptococci are detected, also general antibiotic treatment as prevention glomerulonephritis and urine examination after one month.

Complications[edit | edit source]

There is a certain risk of developing complications, but they are not common.

Prognosis in case of this disease is good.

Links[edit | edit source]

Related articles[edit | edit source]

External links[edit | edit source]

Source[edit | edit source]

Literature[edit | edit source]

  • ŠTORK, Jiří, et al. Dermatovenerologie. 1. vydání. Praha : Galén, 2008. 502 s. s. 88-89. ISBN 978-80-7262-371-6.