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Biomedical subjects

A Aragón

Publications and source records attributed to A Aragón.

At least 19 recordsLinked to original sources
PubMed2000

[Clinical characterization of 450 patients with cerebrovascular disease admitted to a public hospital during 1997].

BACKGROUND: In Chile, cerebrovascular diseases are the fifth cause of death among men and the third cause among women. AIM: To assess the clinical features and management of patients with cerebrovascular disease admitted to a public hospital during 1997. PATIENTS AND METHODS: A retrospective analysis of clinical records of patients discharged with a diagnosis of cerebrovascular disease. Those records in which there was discordance between the discharge diagnosis and the clinical picture were not considered in the analysis. RESULTS: Of the 563 discharges from the hospital with the diagnosis of cerebrovascular disease, 487 records were located and 450 were considered in the analysis. Fifty four percent of patients were male and ages ranged from 17 to 96 years old. Fifty-one percent of patients had an ischemic stroke, 34% a cerebral hemorrhage, 12% a subarachnoidal hemorrhage and 3% a transient ischemic attack. There was a history of hypertension in 64% patients and 20% had an adequate treatment. Eighteen percent were diabetics, 34% had a heart disease and 20% had a previous episode of stroke. Mean hospital stay was 6.3 days in the emergency room and 11 days in the neurology ward. Hospital infections appeared in 21% of patients (respiratory in 68% and urinary in 22%), lethality was 30.5% and a CAT scan was done in 94%. At the moment of admission, 10% of patients had an evolution of less than 2 hours, 27% had an evolution between 2 and 6 hours and nine cases were potential eligible for thrombolysis. CONCLUSION: This is a picture of the local features of patients with cerebrovascular diseases that can be used as a reference for future studies.

Adolescent↗
PubMed1999

Collaboration between developing and developed countries and between developing countries in occupational health research and surveillance.

Collaborative occupational health and safety studies between counterparts in developing and developed countries and between developing countries have demonstrated their potential for improving occupational health and safety. Such collaboration in occupational health and safety is encouraged in the development of infrastructure in research empowerment and capacity building. This action includes the setting of priorities, the identification and documentation of problems, sponsorship, data bases and surveillance systems, technical support, methodology, publishing, research and training programs, controlled intervention, information exchange, and networking. Examples of priorities in occupational health and safety in the developing world include the informal sector (informally hired and independent workers), temporary work, pesticides, accidents, dusts, carcinogens, solvents, ergonomics, women and child labor, human immunodeficiency virus/acquired immunodeficiencey syndrome (HIV/AIDS), and transfer of hazardous materials and technologies. The sustainability of occupational health and safety structures and functions in the developing countries is a primary concern. Socioethical principles emphasize local, national, mutual and global gains. Examples of collaboration are given. Pervasive problems and strategies toward their solution are highlighted.

Developed Countries↗
PubMed1994

Results from a community intervention project in the Nicaraguan mining community El Limon. An overview.

The first steps of a community involvement health project using the principles of community diagnosis and popular participation were carried out in a small Nicaraguan mining village during the second half of the 1980s. Using existing archives and obtaining new information aided by local organizations, priorities could be established for health and safety surveillance within the mining company, as well as for further investigations concerning what seemed to be dominant health problems in the community: serious accidents among the economically active population and diarrhoea and respiratory tract infections among children, as well as infections, and other health indicators of malnutrition. Workers also presented chronic simple bronchitis, ventilatory obstructive disturbance and hearing loss that were strongly associated with working conditions. These results helped to direct health priorities and educational activities at the local level with both the general and working population. The wide experience gained from this study has encouraged us to strengthen the link between research and action and in performing studies in close cooperation with local organizations.

Adult↗
PubMed1993

Arthritis in Mediterranean spotted fever. An immune complex mediated synovitis.

Arthromyalgia are frequent in Mediterranean spotted fever (MSF) (16-76%) but arthritis is rare. We report on a 54-year-old woman who, 1 day after suffering from fever, headache and malaise, developed a painful and swollen left knee. A maculopapular rash and the characteristic 'tache noire' skin lesion appeared 5 days later. Immune complexes were detected in serum and in the SF and normalized following improvement of clinic manifestations. These findings along with a low C3 complement level in the SF suggest that arthritis was mediated by immune complex deposits.

Antigen-Antibody Complex↗
PubMed1991

Immunogenetics of systemic lupus erythematosus in Spanish patients: differential HLA markers.

HLA-DR3 antigen included in the compound phenotype B18BfF1 (but not the one linked to the B8BfS compound phenotype) was found to be significantly increased in our SLE patients. It is remarkable that in our Southern-Mediterranean population, B18BfF1DR3 individuals (but not B8BfSDR3) are prone to SLE with renal disease, in contrast with other Northern European and Caucasoid populations. Also, patients with autoantibodies to Ro/La have a significant increase of the B8DR3 compound phenotype. Production of autoantibodies against Ro alone was associated to DR2 and production of anti-Sm/nRNP to DR3 (either B18BfF1 or B8BfS associated) only in the subgroup without renal disease. The distinctive HLA and autoimmune associations to SLE with and without renal disease suggests that both clinical forms may not share a common identical pathogenesis.

Autoantibodies↗
PubMed1991

[A new demographic classification of the family for the use in primary health care].

The approach to the health-disease problem in the family requires a knowledge of demographic features. We propose a demographic classification based on the nuclear family. In addition to the extensive and single-parent families, the lack of family and the familial equivalents we subdivide the nuclear family depending on whether it has close relatives or not, the number of children, the existence of extended family or not, with relatives or aggregates, and the binuclear families or those of divorced people. On this basis, we have evaluated the demographic distribution of 917 families from the basic health areas of Albaicín and Cartuja in Granada, the Valle de Jaén, and Telde in Las Palmas. We have found the predominance of the nuclear family (76.8%) over the extensive (5.2%), as well as the relevance of the single-parent (8.9%) and the lack of family (7.7%) types. Among nuclear families, those with relatives in near areas come first (62.2%), followed by the extended type (19.6%). There is a remarkably low rate of numerous families (9.3%), while binuclear families are exceptional. As familial demography is a factor to be considered in clinical practice owing to its influence in the familial function and resources, we propose the routine use of this classification in the family history.

Demography↗
PubMed1990

[Polymyalgia rheumatica as a form of presentation of systemic lupus erythematosus].

Three cases of systemic lupus erythematosus (SLE) with clinical presentation similar to a rheumatic polymyalgia (RP) are described. There was no evidence of underlying myopathy in any of the cases thus suggesting that the synovitis is the pathogenic mechanism. The late onset and the poor serologic expression are the relevant clinical signs which could delay or hinder the diagnosis.

Aged↗
PubMedDate not supplied

Hazardous pesticides in Central America.

Pesticides are an extensively documented occupational and environmental hazard in Central America. Yet, severe problems persist. Toxic pesticide use in the Region increased during 1985-1999. High exposure levels and ineffectiveness of personal protective equipment evidence the difficulties for risk reduction. Acute poisonings remain a severe problem. Delayed and/or long-lasting health effects include dermatoses, cancer, and genotoxic, neurotoxic, and respiratory effects. The use of hazardous pesticides persists through deficiencies in government-driven assessment and risk management; excessive focus on regional harmonization; short-term economic interests; strong links between industry and governments; aggressive marketing; weak trade unions; and failure of universities to reach decision makers. Regulation based on local data is lacking. An agreement of the Ministries of Health for restricting the most toxic pesticides in Central America has potential for progress. The most effective way to reduce risk is to greatly reduce pesticide use. Actions needed include development of multidisciplinary strategies for local studies on health and environmental impact of pesticides; development of sustainable nonchemical agricultural technologies; evaluation of interventions; extending and sharing of expertise within the Region; strengthening of unions and communities; and redefining the role of industry toward development of safer products, with responsible marketing and reliable information.

Academies and Institutes↗
PubMedDate not supplied

Pests, peasants, and pesticides on the Northern Nicaraguan Pacific Plain.

With the aim of exploring possible reasons for dangerous work practices among small-scale farmers in the Pacific plain of Nicaragua, a qualitative study was performed. Four focus groups were involved. The information gathered was analyzed with an emphasis on the farmers' relationships to and perspectives on their crops, the economy, pests, and pesticide hazards. Factors that had been anticipated, such as poverty, inadequacy of protective devices, and environmental factors, were found to lead to dangerous work practices. Cultural factors also affected the farmers' attitudes in ways that favored hazardous work procedures. This finding, which had not been anticipated, has important practical implications. It suggests that, to be effective, education and training courses on occupational health should assure that their design, language, materials, and execution are culturally relevant and appropriate.

Adolescent↗
PubMedDate not supplied

[Upward and downward gaze palsy with a unilateral mesencephalic hemorrhage].

INTRODUCTION: Acute vascular lesions limited to the midbrain can yield varied disturbances of eye movements. They are more often infarcts than hemorrhages. CLINICAL CASE: We present the case of a 49 year old, non-hypertensive man who presented with sudden onset of bilateral up and down gaze palsy. CT defined a unilateral hemorrhage in the right mesencephalic tegmentum. CONCLUSION: Cases of upward and downward gaze palsy in association with unilateral upper midbrain hemorrhage are very uncommon. We present a new case.

Cerebral Hemorrhage↗