Clinical Study on the Abnormal Flow Patterns in Ebsteins Anomaly Using Pulsed Doppler Echocardiography

概要

論文の詳細を見る
Pulsed Doppler echocardiography (PDE) was performed in 10 patients with Ebsteins anomaly and 10 cases of tricuspid regurgitation secondary to mitral stenosis.Distal atrialized right ventricle (ATRV): In all patients with Ebsteins anomaly, tricuspid regurgitant flow was recognized by PDE. In this lesion with moderate tricuspid regurgitation, a widely dispersed dot pattern was recorded during systole. However, in the cases with severe tricuspid regurgitation a relatively smooth dot pattern was recognized. In the cases with marked delay in pressure rise in the right ventricle, PDE showed a bimodal regurgitant flow pattern. The interval between the onset of QRS and that of tricuspid regurgitant flow with right ventricular pressure rise was measured. The interval corrected for heart rate ranged from 0.10 to 0.35 with an average of 0.19±0.08 sec. In the subjects with secondary tricuspid regurgitation, it ranged from 0.07 to 0.11 sec. This interval was significantly prolonged in Ebsteins anomaly as compared to that in secondary tricuspid regurgitation (p<0.001).Proximal ATRV: Tricuspid regurgitant flow was detected in 6 of 10 patients with Ebsteins anomaly. The disturbed flow was less apparent in the proximal ATRV than in the distal ATRV.
International Heart Journal刊行会の論文