Comparative study on between echocardiographic and transcatheter assessment of ductal diameter and pulmonary artery pressure in patients with PDA / 重庆医学

ABSTRACT

Objective To evaluate the relevance between transthoracic echocardiography(TTE)and cardiac catheterization in measuring diameter of patent ductus arteriosus(PDA)and assessing pulmonary artery pressure.Methods The diameter of PDA and the pulmonary artery pressure in 105 patients were observed by TTE and cardiac catheterization,respectively.Results The di-ameter of the narrowest segment of the ductus and pulmonary artery pressure measurements by TTE and cardiac catheterization showed excellent correlation(r=0.782,P<0.01;r=0.810,P<0.01,respectively).Conclusion TTE and cardiac catheterization for measuring diameter of PDA and pulmonary artery pressure show excellent correlation.TTE plays an important role in evaluating pulmonary artery pressure and selecting patients efficiency of PDA occlusion.