[A quantitative study of pulmonary artery systolic pressure in patients with tricuspid regurgitation using continuous wave Doppler].
Pulmonary artery systolic pressure (PASP) was assessed with simultaneous continuous wave Doppler echocardiography (CW) and cardiac catheterization (CATH) in 33 cases. There was a close correlation between CW-estimated peak pressure gradient of tricuspid regurgitation (TRPGp) and CATH-measured PASP (r = 0.96, P less than 0.0001). Excellent correlation (r = 0.96, P less than 0.0001) between CW-estimated PASP and CATH-measured PASP was also obtained. The derived regression equation was PASP = TRPGp + 1.33 kPa. When the patients had relative or pathologic pulmonic stenosis, the regression equation was corrected by pulmonary artery pressure gradient (PAPG). The regression equation became PASP = TRPGp + 1.33-PAPG.
Shen
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D000293:Adolescent; D000328:Adult; D001794:Blood Pressure; D006328:Cardiac Catheterization; D002648:Child; D002675:Child, Preschool; D015150:Echocardiography, Doppler; D005260:Female; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000503:physiopathology*; D014262:Tricuspid Valve Insufficiency / Q000503:physiopathology*