[Intervention in risk factors and protection of target organs]. / Intervención sobre los factores de riesgo y protección de órganos diana.

The aim of this work is to review the role of the main risks factors in relation to cardiovascular diseases, and to evaluate the relative effectiveness of different preventive strategies. In the first part of the paper we summarize the historical background that allows us to understand the magnitude of this problem and its evolution. Secondly, we evaluate the significance of these strategies in the primary prevention of stroke and myocardial infarction, and how an intervention in one risk factor can have a greater significance for one of these events. But in any case, we must consider the whole benefit in each patient's health in our final evaluation of this intervention. Finally, we describe the strategies for hypertension and diabetes in order to reduce the incidence of end renal disease.

[Familial outbreak of pneumonia by psittacosis]. / Brote familiar de neumonía por psitacosis.

A familial outbreak (4 cases) of pneumonia by psittacosis in Vall de Uxó (Castellón) during the month of April in 1990 is described. In addition to the epidemiologic, clinical and serologic (complement fixation) studies carried out a survey and serology of 11 healthy controls (neighbors, and employees from a bird shop) were performed. The serum of a parrot recently acquired by the patients (positive at 1/8) was analyzed. The habit of petting the animal was significantly associated with the disease. The patient's response to treatment was good. The titers of antibodies versus Chlamydia psittaci were higher than those of the controls examined and the established threshold for positivity (1/36). In addition to clinical intervention the roles of epidemiology and the participation of veterinary services are fundamental to control this disease the exact prevalence of which is unknown.

[Sea-blue histiocyte syndrome, liver cirrhosis and monoclonal gammopathy. Description of a case]. / Síndrome del histiocito azul marino, cirrosis hepática y gammapatía monoclonal. Descripción de un caso.

The case of a patient with blue histiocyte syndrome associated to liver cirrhosis and benign monoclonal gammopathy is presented, this having been rarely described in medical literature. We analyse the findings and possible relationship.