RESUMO
We report a 47 years old male who was recuperated from a sudden death, and in whom the cardiological assessment showed a right bundle branch block and a fluctuating ST segment elevation V1 to V3. During the electrophysiological study, a polymorphic tachycardia and a ventricular fibrillation were induced. Procainamide administration enhanced ST segment alterations in right precordial leads, and isoproterenol normalized the EKG. All these disturbances are similar to the condition described by Brugada brothers. The patient was treated with an internal implantable defibrillator, without the use of antiarrhythmic drugs and is well after four months of follow up.
Assuntos
Morte Súbita Cardíaca/etiologia , Ressuscitação , Fibrilação Ventricular/complicações , Bloqueio de Ramo/complicações , Bloqueio de Ramo/terapia , Desfibriladores Implantáveis , Eletrocardiografia , Humanos , Masculino , Pessoa de Meia-Idade , SíndromeRESUMO
A great deal of interest has received atrial fibrillation, the most common arrhythmia in adults, due to its complications and difficult treatment its most dreaded complication is atrial thrombi formation with the subsequent risk of embolization. There are several reports defining risk factors for embolic complications and the usefulness of anticoagulants for their prevention. We review the state of the art of anticoagulation in atrial fibrillation not associated to rheumatic valvulopathy. We also give tools to assess embolic risk and to determine the anticoagulant choice for the different presentation forms of atrial fibrillation.
Assuntos
Anticoagulantes/uso terapêutico , Fibrilação Atrial/tratamento farmacológico , Tromboembolia/prevenção & controle , Fatores Etários , Arritmia Sinusal/prevenção & controle , Doença Crônica , Ensaios Clínicos como Assunto , Cardioversão Elétrica , Humanos , Metanálise como Assunto , Fatores de RiscoRESUMO
The prevalence of enamel fluorosis and its severity was studied in 118 young men of 2 socio-economic levels. The subjects were born and resided for at least 6 years in Chilean communities with different natural levels of fluoride in drinking water. There was a high prevalence of enamel defect overall (54%) most of it of mild degree (36%). This was not related to the level of fluoride in drinking water, however further studies are needed since Chilean children are receiving fluoride from other sources. A national program to supplement drinking water with fluoride should take this information into account.
Assuntos
Fluorose Dentária/epidemiologia , Adolescente , Adulto , Chile/epidemiologia , Humanos , Masculino , Projetos Piloto , PrevalênciaRESUMO
Sera from patients with adult T-cell leukemia and asymptomatic carriers of human T-cell lymphotropic virus type I (HTLV-I) from widely separated areas of the world reacted strongly in a standardized quantitative enzyme-linked immunosorbent assay procedure with HTLV-I viral antigen prepared from a strain isolated in the United States. There was a sharp differentiation of the values seen in the patients as compared with a normal population. Of the 35 acquired immune deficiency syndrome patients with Kaposi's sarcoma, only 2 were positive for HTLV-I antibodies in this test, and the distribution of the negative assay values in the other acquired immune deficiency syndrome patient sera was similar to that seen in the normal sera. Sera which contained extremely high levels of antibodies to other unrelated viruses (rubella virus, cytomegalovirus, and herpes simplex virus) all showed negative anti-HTLV-I results, in a pattern similar to the normal sera. Sera from patients with several autoimmune disease (systemic lupus erythematosus, rheumatoid arthritis, thyroiditis) as well as those with infectious mononucleosis or myeloma all also showed the normal distribution of negative results, in spite of the presence of very high levels of the autoantibodies, etc., associated with their illnesses.