El impétigo, una de las afecciones de la piel más comunes entre los niños. El impétigo no ampolloso comienza como pequeñas ampollas que se revientan y. Impétigo ampolloso Niños pequeños Siempre causado por S. aureus Por acción de una toxina epidermolítica Ampollas superficiales de. ABSTRACT. Impetigo is a common cutaneous infection that is especially prevalent in children. Historically, impetigo is caused by either group A β- hemolytic.

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New horizons for cutaneous microbiology: Therefore, concern about MRSA in community-acquired infections, should impetigi greater in the presence of furuncles and abscesses and smaller in impetigo. Bullous impetigo in diaper area. Photoreactions are unlikely, because the range of ultraviolet light that is absorbed by the product does not penetrate the ozone layer. Methicillin-resistant Staphylococcus aureus in community-acquired pyoderma.

It is less effective against Gram-negative bacteria, but exhibits in vitro activity against Haemophilus influenzae, Neisseria gonorrhoeae, Pasteurella multocida, Bordetella pertussisand Moraxella catarrhalis.

El impétigo (para Adolecentes)

In addition, oral antibiotics have more side effects than topical antibiotics. Toxin-mediated streptococcal and staphylococcal disease.

Resistance, in vitro and in vivo, to fusidic acid has been verified nioe at low levels.

The amoxicillin associated with clavulanic acid is the combination of one penicillin with a beta-lactamase inhibiting agent clavulanic acidthus enabling adequate coverage for streptococci and staphylococci.

Rio Branco, 39 Bullous impetigo starts with smaller vesicles, which become flaccid blisters, measuring up to ampolloeo cm in diameter, initially with clear content that later becomes purulent Figure 1.

Bacterial infections of impetigi skin. Regulatory mechanism for exfoliative toxin production in Staphylococcus aureus. Clinical cure of impetigo with retapamulin is well defined, when compared with placebo. Group A streptococci’s pathogenicity is considerably higher than that of other groups.


Most Gram-negative microorganisms and yeasts are resistant to it. Bullous impetigo —desquamation collarette and flaccid blisters. Aminoglycosides exert their antibacterial activity by binding to the 30S ribosomal subunit and interfering with protein ampololso. Currently, the most frequently isolated pathogen is S.

Normal skin is colonized by large numbers of bacteria that live as commensals in its surface or in hair follicles. Crusted impetigo non-bullous on the face.

In Brazil it is available as an ointment and in combination with neomycin. Microbiology of non-bullous impetigo. The resulting superficial ulceration is covered with purulent discharge that dries as an adhering and yellowish honey-colored crust. Mupirocin acts by inhibiting bacterial protein synthesis, by binding with isoleucyl-tRNA synthetase enzyme, thus preventing the incorporation of isoleucine into protein chains. Sometimes, the overgrowth of these bacteria causes skin diseases, and in other occasions, bacteria that are normally found on the skin can colonize it and cause diseases.

Impetigo – review

Several decades of epidemiological studies indicate that there are some strains of group A streptococci that elicit oropharyngeal infections, but rarely cause impetigo. In patients with impetigo, lesions should be kept clean, washed with soap and warm water and secretions and crusts should be removed. Coagulase negative staphylococci are the most common organisms on the normal skin flora, with about 18 different species, and Staphylococcus epidermidis being the most common of the resident staphylococci.

Rheumatic fever can be a complication of streptococcal pharyngitis or tonsillitis, but it does not occur after skin infections. Unique approaches for the topical treatment and prevention of cutaneous infections: Other phage types involved are 3A, 3C and Systemic absorption is minimal and the little that is absorbed is rapidly converted to inactive metabolite, hence the reason why there are not oral or parenteral formulations available.


Mupirocin and fusidic acid are the first choice options. The use in extensive area or in patients with burns aren’t recommended, because of the risk of nephrotoxicity and absorption of the drug’s vehicle, polyethylene glycol, especially in patients with renal insufficiency.

Retapamulin is a semi-synthetic agent derived from an edible mushroom called Clitopilusscyphoides.

El impétigo

These enzymes hydrolyze the beta lactam ring, and they are, so far, the main mechanism of resistance to betalactam antibiotics. Being a bacteriostatic drug, bacterial eradication may not occur, even after the clinical cure of impetigo.

Streptococcus pneumoniae and Streptococcus pyogenes are highly resistant to neomycin, which is why the drug is usually associated with bacitracin to treat cutaneous niod. How to cite this article. In the impetigo treatment review performed by the Cochrane Database of Systematic Reviews, the authors report a relative lack of data on the efficacy of topical antiseptics.

Clinical and molecular characteristics of invasive and noninvasive skin and soft tissue infections caused by group A streptococcus. Its actions against most Gram-positive bacteria nuos limited. Etiology of impetigo in children. Its antibacterial action occurs through the inhibition of protein synthesis by binding selectively to bacterial ribosomes. It is highly effective against Staphylococcus aureus, Streptococcus pyogenes and all other species of streptococci except those of group D.

MRSA resistance to mupirocin has already been described. J Investig Dermatol Symp Proc. Ampolloos inducing antibiotic tolerance, biofilms can increase bacterial virulence. Topical agents for impetigo therapy are reviewed.