[Non-invasive evaluation of systolic pressure of the pulmonary artery in patients with tricuspid regurgitation, using Doppler echocardiography].
OBJECTIVE
To quantify the systolic pulmonary artery pressure (SPAP) by continuous wave Doppler echocardiography and record the prevalence of tricuspid regurgitation (TR).


METHODS
Prospective analysis of 42 patients (pts), submitted to right heart catheterization (RHC).


METHODS
Pts referred to the Echocardiographic Laboratory at Sta. Marta Hospital - H.C.L.


METHODS
Sequential sample of 42 pts with several cardiac pathologies, subjected to RHC and 2D Doppler Echocardiography.


METHODS
The right ventricular and SPAP were recorded in the hemodynamic exam. We considered pulmonary hypertension (PH) if SPAP was greater than 35 mmHg or mean pressure greater than 20 mmHg. The pts were divided into two groups: I-pts without PH and II-pts with PH. The 2D Doppler echocardiography was made within 24 H of the hemodynamic one. Peak gradient (pg) of TR and the correlation with catheterization data were analysed.


RESULTS
Hemodynamic--The mean SPAP in the sample was 46 +/- 21.5 mmHg (27 +/- 4.6 in group I and 55 +/- 20.2 mmHg in II). In 35 pts with TR the mean SPAP was 50.3 +/- 21.2 mmHg. Doppler--The pressure gradient was 40 +/- 18.7 mmHg. 57% pts of the group I and 96% II had TR p less than 0.001. The correlation between Doppler gradient and SPAP was r = 0.95, and no change was noted when 7 is used as a constant.


CONCLUSIONS
Continuous wave Doppler echocardiography is a non invasive technic useful to the quantitative analysis of SPAP.
Abreu
J
J
Servico de Cardiologia do Hospital de Santa Marta, H.C.L. Lisboa.
Bernardes
L
L
Soares
R
R
Ramos
J M
JM
Quininha
J
J
Salomão
S
S
D000328:Adult; D000368:Aged; D001794:Blood Pressure; D015150:Echocardiography, Doppler; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011651:Pulmonary Artery / Q000503:physiopathology*; D013599:Systole; D014262:Tricuspid Valve Insufficiency / Q000453:epidemiology / Q000503:physiopathology*
Avaliação não invasiva da pressão sistólica da artéria pulmonar em doentes com regurgitação tricúspide, utilizando a ecocardiografia Doppler.