Background. Assessment methods for atopic dermatitis (AD) are not standardized, and therapeutic studies are difficult to interpret. Aims. To obtain a consensus on assessment methods in AD and to use a statistical method to develop a composite severity index.Methods. Consensus definitions were given for items used in the scoring system (extent, intensity, subjective) and illustrated for intensity items. Slides were reviewed to address within and between-observer variability by a group of 10 trained clinicians, and data were statistically evaluated with a two way analysis of variance. Two variants of an assessment system were compared in 88 patients at 5 different institutions. Data were analyzed using principal-component analysis. Results. For 5 intensity items studied (erythema, edema/papulation, oozing/crusts, excoriations, lichenification), within- and between-observer variability was good overall, except for edema/papulation which was difficult to assess with slides. In the series of 88 patients, principal-component analysis allowed to extract two unrelated components: the first one accounting for 33% of total variance was interpreted as a ‘severity’ component; the second one, accounting for 18% of variance, was interpreted as a ‘profile’ component distinguishing patients with mostly erythema and subjective symptoms and those with mostly lichenification and dryness and lower subjective symptoms. Of the two evaluation systems used, the one using the rule of nine to assess extent was found more workable than the one using a distribution × intensity product. A scoring index (SCORAD) combining extent, severity and subjective symptoms was mathematically derived from the first system and showed a normal distribution of the population studied. Conclusion. The final choice for the evaluation system was mostly made based on simplicity and easy routine use in outpatient clinics. Based on mathematical appreciation of weights of the items used in the assessment of AD, extent and subjective symptoms account for around 20% each of the total score, intensity items representing 60%. The so-designed composite index SCORAD needs to be further tested in clinical trials.

Albendazole is effective in the treatment of cutaneous larva migrans characterized by multiple and/or diffuse lesions. This new therapeutic regimen can reduce the number of no responses and recurrences, sometimes observed following shorter (e.g. 3-5 days) treatments with albendazole. The longer duration of treatment is not accompanied by the appearance of new and/or more severe side-effects.

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We evaluated retrospectively the efficacy and tolerability of oral albendazole (400 mg/day for 1 week) in 78 patients with hookworm-related cutaneous larva migrans characterized by multiple and/or extensive lesions. The diagnosis was based on history and the clinical picture. Neither topical or systemic drugs nor physical treatments were used. All patients were followed-up for at least 3 months after the therapy. All patients were cured at the end of the therapy. The disappearance of pruritus was reported after 2-3 days and skin lesions after 5-7 days of therapy. One patient reported nausea and abdominal pain; another patient reported worsening of pruritus: in both cases it was not necessary to stop the therapy. No recurrences were observed during follow-up. One week of therapy with 400 mg/day oral albendazole is very effective (cure rate: 100%) in patients with cutaneous larva migrans characterized by multiple and/or extensive lesions. This therapeutical regimen is not accompanied by the appearance of new and/or more severe side effects.