mupirocin and Dermatitis--Atopic

The skin of patients with atopic dermatitis (AD) is heavily colonized with Staphylococcus (S.) aureus, even at uninvolved sites. Toxins secreted by the majority of S. aureus on the skin behave as superantigens and can directly influence the disease activity, although clinical signs of bacterial superinfection might be absent.. This study was conducted to compare the efficacy of hydrocortisone cream, combined with mupirocin or alone with emmolient ointment for the treatment of mild to moderate AD in infants between six months and two years of age.. A total of 83 patients with mild to moderate AD were randomized to receive hydrocortisone, hydrocortisone+ mupirocin or emmolient ointment twice daily in one week and followed-up for 8 weeks, in a blind study. Efficacy evaluation made by SCORAD and eczema area and severity index (EASI) at baseline, day 7, and weeks 2, 4, and 8. Possible adverse events were recorded to evaluate safety.. At the end of study, 65% (17 of 26) of the patients were treated successfully with hydrocortisone ointment based on SCORAD and EASI scores. Also there was a significant improvement in patients combined with mupirocin ointment [74% (20 of 27)]. The percent improvement from baseline in EASI scores was also significantly greater in hydrocortisone and combined group compared with emmolient-treated patients (36%) (p = 0.0187, p = 0.012 respectively).. Monotherapy with hydrocortisone ointment is the main treatment in infants with mild to moderate AD and combination with mupirocin is safe and effective often needed because of possible Staphylococcus carriage.

Topics: Administration, Cutaneous; Anti-Bacterial Agents; Anti-Inflammatory Agents; Dermatitis, Atopic; Double-Blind Method; Drug Therapy, Combination; Emollients; Humans; Hydrocortisone; Infant; Mupirocin; Ointments; Pilot Projects; Severity of Illness Index; Skin; Staphylococcal Skin Infections; Staphylococcus aureus; Time Factors; Treatment Outcome; Turkey

The goals were to determine the prevalence of community-acquired methicillin-resistant Staphylococcus aureus colonization in patients with atopic dermatitis and to determine whether suppression of S aureus growth with sodium hypochlorite (bleach) baths and intranasal mupirocin treatment improves eczema severity.. A randomized, investigator-blinded, placebo-controlled study was conducted with 31 patients, 6 months to 17 years of age, with moderate to severe atopic dermatitis and clinical signs of secondary bacterial infections. All patients received orally administered cephalexin for 14 days and were assigned randomly to receive intranasal mupirocin ointment treatment and sodium hypochlorite (bleach) baths (treatment arm) or intranasal petrolatum ointment treatment and plain water baths (placebo arm) for 3 months. The primary outcome measure was the Eczema Area and Severity Index score.. The prevalence of community-acquired methicillin-resistant S aureus in our study (7.4% of our S aureus-positive skin cultures and 4% of our S aureus-positive nasal cultures) was much lower than that in the general population with cultures at Children's Memorial Hospital (75%-85%). Patients in the group that received both the dilute bleach baths and intranasal mupirocin treatment showed significantly greater mean reductions from baseline in Eczema Area and Severity Index scores, compared with the placebo group, at the 1-month and 3-month visits. The mean Eczema Area and Severity Index scores for the head and neck did not decrease for patients in the treatment group, whereas scores for other body sites (submerged in the dilute bleach baths) decreased at 1 and 3 months, in comparison with placebo-treated patients.. Chronic use of dilute bleach baths with intermittent intranasal application of mupirocin ointment decreased the clinical severity of atopic dermatitis in patients with clinical signs of secondary bacterial infections. Patients with atopic dermatitis do not seem to have increased susceptibility to infection or colonization with resistant strains of S aureus.

Topics: Administration, Intranasal; Adolescent; Anti-Bacterial Agents; Body Surface Area; Cephalexin; Child; Child, Preschool; Community-Acquired Infections; Dermatitis, Atopic; Humans; Infant; Methicillin-Resistant Staphylococcus aureus; Mupirocin; Severity of Illness Index; Sodium Hypochlorite; Staphylococcal Infections

Staphylococcus aureus has a peculiar ability to colonize the skin of patients with eczema and atopic dermatitis (AD), and is consistently found in eczematous skin lesions in these patients. A correlation between the severity of the eczema and colonization with S. aureus has been demonstrated, and it has been determined that bacterial colonization is an important factor aggravating skin lesions. Patients colonized with S. aureus have been treated with antibiotics in several open and double-blind placebo-controlled studies, with conflicting results.. To investigate the colonizing features of S. aureus in the lesional and nonlesional skin of patients with eczema and AD in China and to compare the therapeutic effect of mupirocin plus hydrocortisone butyrate with vehicle ointment plus hydrocortisone butyrate.. A multicentre, double-blind randomized trial was conducted. Eczema Area and Severity Index (EASI) scores were evaluated before the start of the trial and on the 7th, 14th and 28th day of treatment. Swabs for bacterial isolation were taken from lesional skin before the start of the trial and on the 7th, 14th and 28th day of treatment, and from nonlesional skin only before the start of the trial. A combination topical therapy with mupirocin plus hydrocortisone butyrate ointment was used in the experimental group, with vehicle ointment plus hydrocortisone butyrate ointment as a control.. Of 327 patients enrolled in the study, 208 had eczema and 119 had AD. Bacteria were isolated from 70.2% of lesional and 32.7% of nonlesional skin samples from patients with eczema, of which S. aureus accounted for 47.3% and 27.9%, respectively. Bacteria were isolated from 74.8% of lesional and 34.5% of nonlesional skin samples from patients with AD, of which S. aureus accounted for 79.8% and 80.5%, respectively. The colonization density of S. aureus was markedly higher in lesional than in nonlesional skin, both in patients with eczema and with AD (P < 0.01, P < 0.05), and was positively correlated with lesion severity. Considering the EASI scores before and after treatment and the final effective rate, good therapeutic effects were obtained in both the combination experimental groups and the control groups (P < 0.01), and there were no differences in the global therapeutic effect between the two groups in patients with eczema and with AD (P > 0.05). However, in patients with eczema with a clinical score of > 8 or in patients with AD with a clinical score of > 7, the therapeutic effect in the experimental groups was superior to that in the control groups (P < 0.05) on the 7th day of treatment. There were no differences between the two groups on the 14th and 28th days of treatment (P > 0.05). Following the improvement of symptoms and signs of eczema and AD, the positive rates of bacteria and S. aureus were reduced on the 7th day of treatment.. This study confirmed that lesional skin of patients with eczema and AD was more frequently colonized with S. aureus than was nonlesional skin. The more severe the eczema, the higher the colonization rate of S. aureus, and S. aureus was also more often present in lesional and nonlesional skin in patients with AD than in those with eczema. Staphylococcus aureus infection is related to the pathogenesis of eczema and AD. An antibiotic-corticosteroid combination and corticosteroid alone both gave good therapeutic effect in eczema and in AD, and both reduced colonization by S. aureus. Early combined topical therapy is beneficial to patients with moderate to severe eczema and AD, and it is unnecessary to use antibiotics at later stages of disease or in mild eczema or AD.

Topics: Adolescent; Adult; Aged; Anti-Bacterial Agents; Anti-Inflammatory Agents; Child; Child, Preschool; Dermatitis, Atopic; Dermatologic Agents; Double-Blind Method; Drug Therapy, Combination; Eczema; Female; Humans; Hydrocortisone; Male; Middle Aged; Mupirocin; Severity of Illness Index; Staphylococcal Skin Infections; Staphylococcus aureus; Treatment Outcome

Staphylococcus aureus has a role in the pathophysiology of atopic eczema. Topical fusidic acid is widely used in its treatment. There is concern that topical use of fusidic acid may be driving the selection and dissemination of fusidic acid-resistant (FusR) S. aureus.. To test the hypothesis that treatment of atopic eczema for 2 weeks with topical fusidic acid/steroid combination can increase carriage of FusRS. aureus.. Forty-six patients with atopic eczema were allocated randomly to one of two treatment groups. Group 1 (28 patients) were treated with topical 2% fusidic acid plus 0.1% betamethasone cream, and group 2 (18 patients) with topical 2% mupirocin and 0.1% betamethasone cream. The clinical response and nasal and skin colonization with S. aureus were recorded before treatment and after 1 and 2 weeks of therapy.. Baseline samples from the site of worst eczema showed S. aureus (sensitive and resistant) in 76% of patients, and FusRS. aureus in 26%, with no significant difference between treatment groups. After 1 and 2 weeks, both groups showed similar significant clinical improvement. The overall median clinical improvement was paralleled by a reduction in prevalence and population density of S. aureus (sensitive and resistant) at the worst eczema site (P < 0.0001). However, for FusRS. aureus there was no significant change in the prevalence of carriage, or population density in either group compared to baseline. Over 50% of patients carried S. aureus in the nerves and over 20% carried FusRS. aureus. Neither regimen affected either the prevalence or population density of S. aureus or FusRS. aureus in the nerves.. In this small study there is no evidence to support the hypothesis that short-term treatment of atopic eczema with fusidic acid/steroid combination increases fusidic acid resistant S. aureus during a 2-week period.

Topics: Administration, Topical; Adolescent; Adult; Age Factors; Aged; Anti-Bacterial Agents; Carrier State; Chi-Square Distribution; Child; Child, Preschool; Dermatitis, Atopic; Drug Resistance, Microbial; Female; Fusidic Acid; Humans; Male; Middle Aged; Mupirocin; Sex Factors; Staphylococcus aureus; Statistics, Nonparametric; Time Factors; Treatment Outcome

Forty-nine patients with atopic dermatitis entered a double blind placebo controlled cross-over study of mupirocin, a new topical antistaphylococcal antibiotic. Forty-five patients were evaluable. Quantitative bacteriological assessment before treatment showed that heavy colonization of the skin with Staphylococcus aureus was present in nearly all patients even in the absence of overt infection. However, the bacterial count was significantly reduced by 2 weeks' treatment with topical mupirocin, but not by the placebo. Moreover, a significant reduction of clinical severity was also observed after treatment with mupirocin, which was maintained over the following 4 weeks, although recolonization occurred during this period, with bacterial counts rising to pre-treatment levels. Despite recolonization, clinical deterioration was not observed during the trial period. No serious side-effects were observed. Phage typing showed that 50% of patients carried more than one bacterial phage type. Recolonization in eight patients (17%) was with a 'new' strain that had not previously been isolated.

Topics: Administration, Topical; Adolescent; Adult; Anti-Bacterial Agents; Bacteria; Child; Child, Preschool; Clinical Trials as Topic; Dermatitis, Atopic; Double-Blind Method; Fatty Acids; Female; Humans; Male; Middle Aged; Mupirocin; Skin; Staphylococcus aureus

Topics: Administration, Topical; Adult; Anti-Bacterial Agents; Anti-Infective Agents; Anti-Infective Agents, Local; Antibiotics, Antitubercular; Community-Acquired Infections; Dermatitis, Atopic; Drug Therapy, Combination; Female; Humans; Methicillin Resistance; Microbial Sensitivity Tests; Mupirocin; Rifampin; Staphylococcal Skin Infections; Staphylococcus aureus; Treatment Outcome; Triclosan; Trimethoprim, Sulfamethoxazole Drug Combination

Topics: Administration, Cutaneous; Anti-Infective Agents; Child; Dermatitis, Atopic; Dermatologic Surgical Procedures; Diabetic Foot; Drug Resistance, Bacterial; Epidermolysis Bullosa; Humans; Impetigo; Mupirocin; Patient Compliance; Skin; Skin Diseases, Infectious

Topics: Anti-Bacterial Agents; Child, Preschool; Dermatitis, Atopic; Fatty Acids; Humans; Male; Mupirocin; Ointments; Penicillin Resistance; Skin Diseases, Infectious; Staphylococcal Infections; Staphylococcus aureus