PubMed Health⌕ Search

Biomedical subjects

F Quevedo

Publications and source records attributed to F Quevedo.

18 recordsLinked to original sources
PubMed1999

Morphine-induced ventilatory failure after spinal cord compression.

We describe a patient who required large doses of parenteral morphine for severe pain secondary to epidural spinal cord compression caused by metastatic cancer. The pain improved suddenly after neurological progression to a complete cord compression. Shortly afterwards, the patient developed acute respiratory depression caused by an apparent relative overdose of morphine. Our hypothesis is that the cord compression relieved the pain by interrupting the nociceptive pathway. The dose of morphine was then physiologically excessive once the neurologic damage was completed and the pain had been relieved. We advise caution in patients receiving high doses of opioids in which a change in disease status or a pain-relieving intervention may produce rapid pain relief.

Analgesics, Opioid↗
PubMed1997

[Risk of transmission of cholera by fish products: regional perspective in South America].

Cholera returned to South America in January 1991, after almost a century of absence. The hygienic status of the countries affected, aggravated by economic and political difficulties, allowed the disease to spread rapidly. In Peru, fishery products were incriminated from the outset, although without conclusive evidence. However, epidemiological and laboratory findings in other countries have confirmed the transmission of the disease by these products. The authors discuss the effects of the recent cholera epidemic on the trade and consumption of fishery products in countries of South America. The actual risk of cholera transmission by food and in particular by the consumption of fishery products is discussed, and a basis for conducting an accurate evaluation of these risks is proposed. Finally, the authors summarise the measures recommended to prevent the transmission of cholera by fishery products.

Animals↗
PubMed1994

Contaminated food, a hazard for the very young.

Contaminated food is responsible for much diarrhoeal disease in young children, yet the education of mothers and care-givers about the preparation of food under hygienic conditions tends to be neglected.

Cooking↗
PubMed1993

Contaminated weaning food: a major risk factor for diarrhoea and associated malnutrition.

Infections and the malnutrition associated with them are responsible for a significant proportion of the 13 million deaths among infants and children under 5 years of age worldwide each year. After respiratory infections, diarrhoeal diseases are the commonest illnesses and have the greatest negative impact upon the growth of infants and young children. The causes of diarrhoeal diseases have traditionally been ascribed to water supply and sanitation. In attempts to prevent such diseases, efforts by governments and nongovernmental organizations have been focused on and sometimes limited to improving water supply and sanitation as well as promoting and protecting breast-feeding. Based on studies reported in the literature, this review article demonstrates that weaning foods prepared under unhygienic conditions are frequently heavily contaminated with pathogens and thus are a major factor in the cause of diarrhoeal diseases and associated malnutrition. In the light of the evidence presented, it appears that current efforts are not sufficient to prevent diarrhoeal diseases: education of mothers in food safety principles, particularly weaning food, must also receive high priority. Educational programmes based on the hazard-analysis-critical-control-point approach, taking into consideration also sociocultural factors, should be integrated into all national infant feeding or food and nutrition programmes.

Adult↗
PubMedDate not supplied

Use of nebulized bronchodilators in infants under 1 year of age: analysis of four forms of therapy.

The main purpose of this study was to evaluate four different forms of treatment in young infants admitted for acute wheezing (AW). Seventy-nine infants less than one year of age were randomly assigned to one of five groups. Group 1 received nebulized fenoterol plus ipratropium bromide, group 2 fenoterol, group 3 fenoterol plus steroids, and group 4 aminophylline, IV, plus steroids and oral fenoterol; the control group, or group 5, received nebulized normal saline solution. Clinical evaluation was done by means of a scoring system. The effectiveness of treatments was estimated by a score decrease in the first 24 hours, by the percentage of patients whose scores did not decrease during the same period, and by the number of days in the hospital. All infants had significantly decreased scores, except those in the control group; the aminophylline group included a greater percentage of patients who did not abate their scores, and they stayed in the hospital for more days than those in the other groups. The fenoterol group had the shortest hospital stay. All four treatments produced objective clinical improvement in bronchial obstruction. However, the nebulized bronchodilator treatments were more effective than aminophylline IV in decreasing scores on the first day, and they resulted in shorter hospitalization.

Aminophylline↗
PubMedDate not supplied

Spanish validation of the Syndrom Kurztest (SKT).

There is an urgent need in multinational studies for efficient and sensitive tests for the evaluation of dementias. These tests are used to investigate the regional characteristics of dementias, providing possible insight into the different etiologies of the disorders. These tests are also utilized to assess the outcome of treatment interventions at multinational levels. We validated and standardized the Syndrom Kurztest, a brief European neuropsychological test, in a population of elderly Chileans, possessing high levels of illiteracy. In our sample, the SKT was found to be an effective instrument for the diagnosis of dementias, and for differentiating mild-moderate from severe degrees of the disease. There was a good correlation between the scores on the SKT and the age of the participants, but the gender and the years of schooling had no effect. The test is a useful contribution to the study of dementias, found in the aging developing world, particularly because it can be used in illiterate populations.

Aged↗
PubMedDate not supplied

[Enterobacteriaceae as indicators of the presence of Salmonella and the hygienic conditions of meat and bone meals].

The purpose of this study was to establish the relationship between Enterobacteriaceae counts and the presence of Salmonella in meat-and-bone meals. Ninety meat-and-bone meal sample units (9 lots) from five producing plants from the Greater Buenos Aires, Argentina, were analyzed. The presence of Salmonella was detected through pre-enrichment of the samples followed by selective enrichment in two broth cultures and isolations after 24 and 48 hours. For Enterobacteriaceae counts the recovery of sublethally injured cells was carried out for two hours on trypticase soy agar, followed by the addition of selective agar. The overall Enterobacteriaceae count for the 90 sample units was 3.0. Seven (77.7%) of the 9 lots were positive for Salmonella. The correlation coefficient between Enterobacteriaceae counts and Salmonella was 0.81 with a confidence limit (95%) of 0.35-0.95. The results of this study indicate that Enterobacteriaceae counts are not good indicators of the presence of Salmonella in meat-and-bone meals. However, they could be used to assess their hygienic quality.

Colony Count, Microbial↗