"Avaliação da distensibilidade da artéria pulmonar através da ressonância magnética e sua relação com a resposta ao teste agudo com vasodilatador em pacientes com hipertensão arterial pulmonar" / Pulmonary artery distensibility assessed by magnetic resonance and its relation to acute vasodilator test response in pulmonary arterial hypertension patients

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

Pulmonary arterial hypertension is characterized by an increase in pulmonary vascular resistance, eventually leading to hemodynamic failure. We assessed whether pulmonary artery distensibility (evaluated by magnetic resonance) correlated with acute vasodilator test response. A statistically significant difference was found in terms of pulmonary artery distensibility in responders and non-responders. A ROC curve showed that 10% distensibility could discriminate responders from non-responders with 100%sensitivity and 56% specificity

ASSUNTO(S)

artÉria pulmonar/fisiopatologia pulmonary circulation/physiology magnetic resonance imaging hypertension pulmonary imagem por ressonÂncia magnÉtica fenÔmenos hemodinÂmicos/efeitos de drogas pulmonary artery/physiopathology hipertensÃo pulmonar circulaÇÃo pulmonar/fisiologia hemodynamic phenomena/drug effects

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