PubMed Health⌕ Search

Biomedical subjects

I Alvarez Baleriola

Publications and source records attributed to I Alvarez Baleriola.

22 records · Page 2Linked to original sources
PubMed1994

[Prevalence of Helicobacter pylori infection in symptomatic adults].

AIM: To study the prevalence of Helicobacter pylori infection in different gastroduodenal entities in a wide group of symptomatic patients of our area. MATERIALS AND METHODS: 796 (493 females) patients referred to our Hospital for upper gastrointestinal endoscopy were studied. Mean age was 51.1 +/- 16.6 yrs. In all patients biopsies samples were taken from the gastric antrum for histological and microbiological (urease test) studies. A patient was considered Helicobacter pylori negative when its presence was not proved by microbiological and histological methods. RESULTS: 70.9% (73.8% males and 64.7% females) were Helicobacter pylori positive. The great majority of patients belong to 4. and 5. decade. Endoscopic diagnosis were: normal endoscopy 47.4%; antral gastritis 79.9%; pangastritis 68%; gastric ulcer 75.9%; duodenal ulcer 98.2%; pyloric ulcer 94.7%; endoscopic duodenitis 95.7%; gastric cancer 31.9%; operated stomachs 45.6%; and esophagitis 33.3%. CONCLUSIONS: The urease test had a high specificity (100%) and sensitivity (90%). Global results of H. pylori infection and its distribution among different gastroduodenal entities was similar to those described in other publications in our setting, although the prevalence was lower when compared with those countries with a lower socioeconomic status. H. pylori infection age-distribution suggests that this infection is acquired throughout life.

Adolescent↗
PubMed1990

Nonimmunologic hydrops fetalis: an etiopathogenetic approach through the postmortem study of 59 patients.

Aiming at increasing our understanding of the various causative factors of nonimmunologic hydrops fetalis (NIHF) and their pathogenetic mechanisms, we have reviewed 59 cases of this condition from a total number of 4,175 pediatric post-mortem studies performed at the Department of Pathology of the Hospital La Paz from 1967 to 1987. We found eight cases (13.5%) without clinical, biochemical, or post-mortem findings justifying the development of hydrops fetalis, seven cases (12%) associated with certain pathologic findings that by themselves do not explain the development of hydrops and, finally, 44 cases (74.5%) in whom pathological findings may explain the development of the condition. Notwithstanding the etiological diversity of this last group, in 31 of these cases (70%), some common pathogenetic features may be recognized, basically a failure of the right ventricle of the heart in the fetus or newborn, due to a primary heart condition, to intracardiac tumors, or to obstructive phenomena at the level of the right venous drainage. In our opinion, whenever NIHF is diagnosed or suspected, causes of right cardiovascular failure should be investigated, since about 50% of all cases seem to be due to this pathogenetic mechanism.

Autopsy↗