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Biomedical subjects

A Saúl

Publications and source records attributed to A Saúl.

17 recordsLinked to original sources
PubMed1987

Mycetoma due to Nocardia caviae.

Mycetoma is the most frequent deep mycosis in Mexico and is caused by Nocardia brasiliensis in 86% of the cases. Two cases of mycetoma due to Nocardia caviae, the first in Mexico, are reported. The strains were identified by their biochemical properties according to the criteria of Gordon and Mihm (1962). Few cases of mycetoma caused by this actinomycete have been reported in the world. One of our cases was unusual: occurring on the trunk as a tumor and diagnosed by finding the "grains" on histologic examination.

Dapsone↗
PubMed1982

Amoebiasis cutis.

Explore the source record for details and available documents.

Amebiasis↗
PubMedDate not supplied

Itraconazole in the treatment of superficial mycoses: an open trial of 40 cases.

Forty patients with superficial mycoses were treated with itraconazole, a new triazole derivative, in an open study. In 29 cases the diagnosis was dermatophytosis; in five, candidosis; and in six, pityriasis versicolor. Each patient received 50 mg of itraconazole orally once a day for 30-60 days. Thirty-three patients completed therapy; at the end of therapy, 21.2% were considered clinically cured and 57.6% were considered mycologically cured. Results of direct microscopic examination were negative at 30 days for the patients with pityriasis versicolor; none of the patients with candidosis responded to therapy. Pruritus and other symptoms or signs of infection improved after the 15th day, but even after 60 days of therapy, nine of the 10 patients who finished the trial at that time had residual lesions. The drug was well tolerated. It appears that a dosage of 50 mg of itraconazole daily is not adequate for the treatment of these mycoses.

Adolescent↗
PubMedDate not supplied

Treatment of multiple viral warts with levamisole.

Seventy-seven patients with multiple common warts were screened for a double-blind study using levamisole. Of these, only 32 patients showed cellular immune deficiency. Fourteen patients received 2.5 mg/kg, two days a week, for eight weeks, and eighteen received a placebo. Both groups showed some improvement but results were not statistically different. Placebo plays a significant role in the treatment of warts.

Clinical Trials as Topic↗
PubMedDate not supplied

Early signs of leprosy in children.

Leprosy in children is more frequent than generally thought. Diagnosis is not easily made because early signs of the diseases are overlooked. Statistic data from the Dermatologic Clinic Pascua of Mexico City reveal that early signs are cutaneous in 67% of cases: hypochromic and anesthetic infiltration, nodules, and alopecia of eyebrows and eyelashes. Neurological symptoms such as anesthesis, facial paralysis, thickening of nerves and trophic problems are present in 19.3% of cases. The nose mucosae are congested in 9.2% of cases. Systemic manifestations may be present in 4% of cases. Examination of contacts living with lepromatous patients is stressed as the best way to discover the early signs of the disease. Dermatological consultation in general and pediatric hospitals is also recommended. If diagnosis is delayed, leprosy can induce physical, psychological and social disabilitation of the patient.

Adolescent↗
PubMedDate not supplied

[Epidemiology of mycetoma in Mexico: study of 2105 cases].

A survey was carried out in Mexico to determine the incidence and epidemiological characteristics of mycetoma. Data was collected from a total of 2105 cases of mycetoma throughout a 30 year period (1956-1985), with an average incidence of 70 cases per year. Results showed a sex distribution of 76.1% male and 23.9% females. Age distribution indicated a 35% between 16 to 30 and 23% between 31 to 40 year old population. Most cases occurred in land-workers (60.2%) and in housewives with rural residence (21.3%). Lesions occurred most frequently in lower limbs (64.1%), trunk (17.4%) and upper limbs (13.6%). The geographic distribution within Mexico revealed that the States with the highest incidence were: Jalisco, Nuevo León, San Luis Potosi, Morelos and Guerrero The predominant etiologic agents found 97.8% corresponded to actinomycetes, from which Nocardia brasiliensis (86.6%) and Actinomadura madurae (10.2%) showed the higher frequency. Eumycetoma (2.2%) was due to Madurella grisea and M. mycetomatis in most cases.

Adolescent↗
PubMedDate not supplied

[Lucio-Latapí leprosy and the Lucio phenomenon].

The Lucio-Latapí's leprosy or diffuse lepromatous leprosy is a clinical variety of lepromatous leprosy first described by Lucio and Alvarado in 1852 and reidentified by Latapí in 1936. It is frequent in Mexico (23%) and in Costa Rica and very rare in other countries. It is characterized by a diffuse infiltration of all the skin which never is transformed into nodule, by a complete alopecia of eyebrows and eyelashes and body hair, by anhydrotic and dysesthesic zones of the skin and by a peculiar type of lepra reaction named Lucio's phenomenon or necrotic erythema which is a vascularitis of vessels especially of the dermohypodermic union and of the hypodermis. Clinically this vascularitis is represented by well-shaped erythematous spots, later becoming necrotic with scabs, ulcerations and scars. Three points of confusion are stressed: the differences between nodules and nudosities, Lucio's leprosy and Lucio's phenomenon and necrotic erythema and necrotic erythema nodosum leprosum. The differences between the pure and primitive form of Lucio's leprosy and the secondary one is also discussed such as the laboratory findings, histopathological data, pronostic and treatment. Lucio's leprosy is considered the most anergic one of the all immunological spectrum of leprosy.

Drug Therapy, Combination↗