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O Rodríguez

Publications and source records attributed to O Rodríguez.

28 records · Page 2Linked to original sources
PubMedDate not supplied

[Circulating Haemophilus influenzae in Cuba. Characterization of strains isolated from meningitis].

Haemophilus influenzae B(Hib) is often associated with serious systemic infections in children under 5 years of age. Since 1993, it is the most frequent agent isolated in meningoencephalitis. All the strains isolated in the country have been characterized in the National Reference Laboratory at the "Pedro Kourí" Tropical Medicine Institute. Results revealed that 97% of strains isolated from bacterial meningoencephalitis in Cuba during the period 1993-1995 corresponded to serotype B, 0.6% to serotype A and 2.4 not belong to any serotype. The classification of serotype B-strains into biotypes proved that 76% was biotype I and 21% biotype II, 8 to biotype III and 1.2% was biotype V. This study found the following resistance to ampicillin 40%, to chloranphenicol 43.3%, sulpha metoxazol 36%, trimetroprim 37.3% and tetracycline 31%.

Cuba↗
PubMedDate not supplied

[Diagnostic clinical trial in children using an allergenic extract of Blomia tropicalis].

BACKGROUND: Blomia tropicalis is a mite that is one of the most important causes of allergic sensitization in studies of tropical and subtropical regions. Nonetheless, there are no published studies of the sensitivity and specificity of B. tropicalis extracts. METHOD: An open, non-randomized study was carried out in 205 asthmatic children and in 205 non-asthmatic children, both groups with an age range of 1 to 14 years. Duplicate skin prick tests were made using allergen extracts standardized by biological units and positive and negative controls. The test was considered positive when the average diameter of the wheal was > or = 3 mm and negative when it was < 3 mm. The validity of the test was estimated by calculating sensitivity, specificity, and the positive and negative predictive values. RESULTS: The skin prick test was positive in 82.92% of the asthmatic children and in 10.7% of the non-asthmatic children, yielding a sensitivity of 82.9%, 95% CI 76.9; 87.7 and a specificity of 89.3%, 95% IC 84.0; 93.0. The positive predictive value was 88.5%, 95% IC 83.0; 92.5 and the negative predictive value was 83.9%, 95% IC 78.2; 88.4. CONCLUSIONS: Blomia tropicalis is an important cause of bronchial asthma among the children of the northern Camagüey region.

Allergens↗
PubMedDate not supplied

Maxillary undifferentiated carcinoma with rhabdoid features.

The rhabdoid malignant tumor was individualized by Haas et al. as an independent entity within the kidney malignant neoplasms in 1981. From its histopathological characteristics, different cases of rhabdoid extra-renal tumor were documented. This aspect has been also recognized in a wide heterogeneous group of tumors (carcinoma, melanoma, mesothelioma and mesenchymal tumors). The diagnosis of extrarenal rhabdoid tumor is based on the presence of a proliferation of epithelioid cells with large nuclei, prominent nucleoli, abundant eosinophilic cytoplasm, and conspicuous cytoplasmic intermediate filaments, which compress the nuclei. In this article we present the case of a 50-year-old male patient with a malignant maxillary tumor with characteristic rhabdoid features. Its differential diagnosis will be discussed. The literature will also be reviewed.

Carcinoma↗
PubMedDate not supplied

[Prevalence of metallo-beta-lactamase in carbapenem resistant Pseudomonas aeruginosa at a university hospital of Buenos Aires City].

The present study was conducted to estimate the prevalence of metallo-beta-lactamases in 91 consecutive carbapenem resistant Pseudomonas aeruginosa isolates, recovered from inpatients at Hospital de Clínicas in Buenos Aires. Both, phenotypic and genotypic methods detected the presence of carbapenemases in 10 (11%) isolates, corresponding to VIM-11 in 7/10 and VIM-2 in the others. Codifying genes were all included in class 1 integrons, upstream genes coding for aminoglycoside modifying enzymes. One hundred percent sensitivity and specificity was achieved by the metallo-beta-lactamases phenotypic screening method using EDTA (1 micromol) disks in the Pseudomonas aeruginosa isolates included in this study. Sensitivity to aztreonam in carbapenem resistant isolates was suspicious of the presence of these enzymes.

Argentina↗
PubMedDate not supplied

[Norwegian scabies caused by Sarcoptes scabiei variety hominis].

A rare case of Norwegian scabies in a 16 years old female patient is reported. There also was Silver Roussel's syndrome and cellular immunologic deficiency. The case was confirmed at the biopsy, direct examination and immunologic examinations. Clinically, by erythema and adherent, abundant, whitish desquamation. The treatment resulted in a full recovery.

Adolescent↗
PubMedDate not supplied

[Dermatology topics].

Explore the source record for details and available documents.

Antigens, Bacterial↗