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삼첨판 폐쇄 부전증에서 연속파형 Doppler 심초음파 검사에 의한 우심실 및 폐동맥 수축기압 추정에 관한 연구
김육 ( Kim Yug ),조주영 ( Jo Ju Yeong ),김철현 ( Kim Cheol Hyeon ),김학선 ( Kim Hag Seon ),조영덕 ( Jo Yeong Deog ),김홍수 ( Kim Hong Su ),박노춘 ( Park No Chun ),서세웅 ( Seo Se Ung ),김성구 ( Kim Seong Gu ),권영주 ( Kwon Yeong 대한내과학회 1992 대한내과학회지 Vol.42 No.3
To determine noninvasive estimation of systolic right ventricular and pulmonary artery pressure by continuous wave Doppler echocardiography. We analyzed continuous wave Doppler echocardiography and cardiac catheterization data in 16 patients with tricuspid regurgitation undergoing right heart catheterization. Peak velocity of systolic tricuspid regurgitation flow by continuous wave Doppler echocardiography was 254.0±71.0 ㎝/sec and calculated pressure gradient between right ventricle and atrium was 26.9±12.8 ㎜Hg. Peak velocity and pressure gradient of systolic tricuspid regurgitation flow in continuous wave Doppler echocardiography significantly correlated with systolic right ventricular pressure (r=0.84 p<0.001, r=0.87 p<0.001) and systolic pulmonary artery pressure (r=0.82 p<0.001, r=0.87 p<0.001) measured by right heart catheterization. Deceleration rate of systolic tricuspid regurgitation flow significantly correlated with peak velocity (r=0.90 p<0.001) and pressure gradient (r=0.92 p<0.001) by continuous wave Doppler echocardiography also significantly correlated with systolic pressure gradient (r=0.82 p<0.001) between right ventricle and right atrium measured by right heart catheterization. In conclusion, we could noninvasively estimate systolic right ventricular and pulmonary artery pressure in the patients with tricuspid regurgitation by analyzing peak velocity, pressure gradient and deceleration rate by continuous wave Doppler echocardiography.