Biomedical subjects

F Vargas Vorackova

Publications and source records attributed to F Vargas Vorackova.

4 recordsLinked to original sources

PubMedDate not supplied

[Usefulness of the 14C-urea marked test in the detection of Helicobacter pylori in patients with dyspepsia].

This study was undertaken to evaluate the usefulness of the urea test (UT) in the detection of Helicobacter pylori (HP) in dyspeptic patients. The UT was done in 105 patients with dyspepsia who underwent endoscopy and biopsy. Hematoxylin-eosin and Warthin Starry tissue stains were performed for HP detection, and the resulting microscopic findings were considered as the gold standard. The sensitivity, specificity, and positive and negative predictive values of the UT were of 95%, 63%, 85% and 83% when compared to the hematoxylin-eosin stain-related findings, and 99%, 79%, 93% and 96% when compared to those related to the Warthin Starry stain. We conclude that the UT is a simple, non-invasive and useful diagnostic alternative to detect HP in patients with dyspepsia.

Adult↗

PubMedDate not supplied

[Knowledge, application, and diffusion of results of clinical research: the case of porto-systemic encephalopathy].

The objectives of this survey were to evaluate the medical knowledge, acceptance and application of research results, and to identify the main sources of information in our environment. Portal-systemic encephalopathy (PSE) was the specific health problem addressed. Three hundred seventy-seven attendants to the National Mexican Gastroenterology Week (december 14-19, 1991) were surveyed. The results point out: 1) Gaps in PSE knowledge, since 30% or more incorrect answers were obtained for some PSE manifestations and therapeutic measures; 2) A persistent use of measures with doubtful efficacy, which is exemplified by the regular use of neomycin by (80%) of the respondents, 3) frequent influence of the availability of therapeutic measures (68%), as the satisfaction with therapeutic response (66%) on PSE treatment patterns, and 4) important role of continuing education courses and/or scientific meetings (> 66%) and medical journals (> 57%) as sources of information.

Adult↗

PubMedDate not supplied

[Epidemiology of peptic ulcer at the "Salvador Zubirán" National Institute of Nutrition].

In order to know the variations on the epidemiology of peptic ulcer in the INNSZ we have studied 850 patients with peptic ulcer between January 1980 and July 1988, in comparison with 1,000 patients studied in 1960 and in a similar group in 1980. In the 1988 group, we analyze the characteristics such as: sex, age, localization of the ulcer, occupation and habits and we compare them with a control group of 850 patients studied in the same time in the INNSZ. According with these results, we can appreciate that the duodenal ulcer (DU) has decreased from 77.5% in 1960 to 57.5% in 1988. The difference is statistic significant (p less than 0.005). About gastric ulcer (GU), its frequency has been increased from 17.6% to 29.6% with a statistic significant difference (p less than 0.005). The esophageal ulcers has been increased too. Other observation is that the general proportion of ulcers in the hospital population has been decreased from 7% in 1960 to 3.6% in 1988.

Adolescent↗

PubMedDate not supplied

[Interferon].

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Animals↗