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Biomedical subjects

D Rigopoulos

Publications and source records attributed to D Rigopoulos.

29 records · Page 2Linked to original sources

Epidemiology of onychomycosis in southern Greece.

BACKGROUND: Onychomycosis appears to be a variable entity: it presents in different forms in different parts of the world. It is probable that every country has its own particularities of presentation and it is also probable that different regions of the same country, with either different or equivalent environmental conditions, present with different levels of incidence. Large-scale epidemiological studies performed worldwide have demonstrated different epidemiological results. OBJECTIVE: This study was undertaken to determine the epidemiology of onychomycosis in the population of southern Greece. METHODS: Direct microscopic examination and culture were performed on samples from patients with clinical suspected onychomycosis. RESULTS: The most frequently isolated fungus was Candida (52.44%), followed by dermatophytes (41.04%) and saprophytic molds (6.51%). Finger nails were infected more than toe nails in both sexes. The most frequently isolated fungus in finger nails was Candida (76%), followed by dermatophytes (23%), and molds (1%); toe nails were most often infected by dermatophytes (71%), Candida (13%) and molds (16%). Among the infected women patients, the most frequently isolated fungus was Candida (64%), followed by dermatophytes (30.58%); 5.33% were infected by saprophytic molds. Of the 101 men infected, dermatophytes were most frequently isolated (62.37%), followed by Candida (28.71%) and saprophytic molds (8.91%). CONCLUSIONS: Comparison of the results of epidemiological studies of onychomycosis worldwide show great differences, not only between different countries and different climate zones, but also between studies performed in the same country. In our opinion such epidemiological studies should be performed in every country in order to determine the major fungal species responsible; such information is extremely useful in the treatment of nail onychomycosis.

Adolescent↗

Influence of the menstrual cycle on skin-prick test reactions to histamine, morphine and allergen.

The purpose of this study was to examine the possible influence of the phases of the menstrual cycle on dermal reactivity to skin-prick testing. We studied 15 atopic, menstruating women with seasonal rhinoconjunctivitis and/or asthma, with known sensitivity to olive and parietaria (mean age 25.2 years) and 15 non-atopic, healthy, female controls (mean age 24.7 years). Skin-prick tests with histamine, morphine, and in the atopic group with parietaria/and/or olive, were repeated three times during the same menstrual cycle, corresponding to bleeding (day 1-4), midcycle (day 12-16) and the late progesterone phase (day 24-28). None of the patients had received oral antihistamines or exogenous hormones for at least 1 month prior to testing. Results indicate a significant increase in weal-and-flare size to histamine, morphine, and parietaria on days 12-16 of the cycle, corresponding to ovulation and peak oestrogen levels. This was observed in both atopic and non-atopic women. Differences in skin reactivity to histamine and morphine between the groups were not significant. Therefore, in women, the phase of the menstrual cycle is another factor that may influence skin-test results.

Adult↗

Itraconazole in the treatment of tinea corporis and tinea cruris.

Forty-five patients with tinea corporis or tinea cruris were treated with oral itraconazole 100 mg daily for 15 days. At the end of the 15-day treatment, 80% of the patients were healed or had markedly improved. At the first follow-up visit, 2 weeks after stopping therapy, 80% of patients were considered responders. An additional follow-up visit another month later (i.e. 6 weeks post-treatment) showed that 32 of 41 patients had responded (78%). Overall, the mycological cure rate (culture and microscopy negative) was somewhat lower than the clinical response rate. Only three patients reported minor side effects (7%). Nausea was reported by two patients and an urticarial reaction was seen in one patient after 8 days treatment. This latter patient discontinued therapy because of the adverse experience. It is concluded that itraconazole, given at a daily dose of 100 mg for 15 days, is effective in the treatment of tinea corporis and tinea cruris. Response rates at the last visit (6 weeks post-therapy) remained at the same satisfactory levels as at the first follow-up visit (2 weeks post-therapy), even though treatment was stopped after 2 weeks. Itraconazole appears to be well tolerated by patients. These results, both in terms of efficacy and side effects, are in line with results reported by other investigators. The fact that the mycological cure rates were somewhat lower than the clinical response rates had apparently no influence on the relapse rate at 6 weeks follow-up post-therapy.

Administration, Oral↗