摘要
目的:探讨风湿性二尖瓣狭窄(MS)患者合并三尖瓣反流(TR)的程度与三尖瓣瓣环径(DT)、右室功能的关系。方法:选择64例MS合并TR患者(轻度37例,中、重度27例)和40例正常人。测量DT,体表面积(ABS),校正值为DT/ABS;应用定量组织速度成像(QTVI)测量右心室游离壁基底段收缩期峰值速度(vs)。TR程度用TR面积与右房面积比值表示。结果:与正常人相比,MS患者DT/ABS增大(P<0.001),vs降低(P<0.001);TR程度与DT/ABS呈正相关(r=0.685,P<0.01)。中、重度TR患者DT/ABS较轻度TR患者增大((21.60±2.86)mm/m2vs(17.21±1.82)mm/m2,P<0.01)。以DT/ABS≥21mm/m2为标准,预测中、重度TR的回顾性预测准确率为93.8%,前瞻性预测准确率为92.7%。结论:MS患者合并TR的程度与三尖瓣瓣环径、右室功能密切相关。DT/ABS≥21mm/m2可作为超声预测中、重度TR的定量指标。
Aim ： To investigate the relation between the grade of tricuspid regurgitation （TR） and the tricuspid annular size, the right ventricular long-axis systolic function in patients with functional TR secondary to rheumatic mitral stenosis （MS）. Methods ：The diastolic tricuspid annular size divided by ABS （Dτ/ABS） was measured by two-dimensional echocardiography and the peak systolic velocity of the basal segment of fight ventricular free wall（ vs ） was measured by quantitative tissue velocity imaging（QTVI） in 64 MS patients with TR and 40 normal subjects. Results： The DT/ABs was significantly greater in TR than in normal subjects（P 〈 0. 001 ）. The v was significantly decreased in TR than in normal subjects（P 〈 0. 001 ）. There was a positive correlation between the grade of TR （TR area/right atrial area） and Dτ/ABS（r = 0. 685, P 〈0.01 ）. The mean DT/ABs was significantly greater in patients with moderate or severe TR than in patients with mild TR （ （ 21.60 ± 2.86 ） mm/m^2 vs （ 17.21 ± 1.82 ） mm/m^2 , P 〈 0.01 ）. Using the standard of DT/ABS≥ 21 mm/m^2 to predict the happening of moderate or severe TR, the accurate percentage was 93.8% （retrospective study） and 92.7% （prospective study）.Conclusion： The grade of TR is correlated with the diastolic tricuspid annular size and the fight ventricular longaxis systolic dysfunction. Dτ/ABS≥ 21mm/m^2 can be a quantitative echocardiographic standard of predicting moderate or severe TR.
出处
《郑州大学学报（医学版）》
CAS
北大核心
2006年第3期541-543,共3页
Journal of Zhengzhou University(Medical Sciences)
关键词
超声心动图
三尖瓣反流
三尖瓣瓣环径
风湿性心脏病
echocardiography
tricuspid regurgitation
tricuspid annular size
rheumatic mitral stenosis
