title: [Correlation of the transaortic gradient determined with doppler echocardiography versus catheterization in patients with aortic stenosis].
abstract: The purpose of this report is to evaluate the reliability of a non-invasive estimation of a transaortic gradient in patients with valvular aortic stenosis by doppler echocardiography. We compared the transvalvular gradients obtained by cardiac catheterization (invasive) versus the estimation by non-invasive technique such as continuous-wave doppler in 30 consecutive patients with valvular aortic stenosis. When compared the peak velocity (Vmax) of the aortic jet versus the gradient obtained by cardiac catheterization we found a correlation coefficient (r) of 0.83 and when compared the gradient obtained by both methods we found an r value of 0.85. These results show that the calculations of aortic gradient by echo-doppler, are reliable. Besides this method allowed us to establish the correct diagnosis and to follow up these patients.
authors.affiliation: Departamento de Cardiología, Hospital de Especialidades, Centro Médico La Raza, IMSS.
authors.forename: J
authors.initials: J
authors.lastname: Illescas
authors.forename: R
authors.initials: R
authors.lastname: Enciso
authors.forename: M
authors.initials: M
authors.lastname: Vidrio
authors.forename: N
authors.initials: N
authors.lastname: de la Torre
authors.forename: E
authors.initials: E
authors.lastname: Baduí
mesh_terms: D000328:Adult; D000368:Aged; D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging / Q000503:physiopathology*; D001794:Blood Pressure; D006328:Cardiac Catheterization; D015150:Echocardiography, Doppler; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012044:Regression Analysis; D015203:Reproducibility of Results
vernacular_title: Correlación del gradiente transaórtico determinado por eco-Doppler vs. cateterismo en pacientes con estenosis aórtica.