Accuracy of echocardiographic right ventricular parameters in patients with different end-stage lung diseases prier to lung transplantation

被引:75
作者
Schenk, P [1 ]
Globits, S [1 ]
Koller, J [1 ]
Brunner, C [1 ]
Artemiou, O [1 ]
Klepetko, W [1 ]
Burghuber, OC [1 ]
机构
[1] Univ Vienna, Dept Internal Med 4, Intens Care Unit 13 H1, A-1090 Vienna, Austria
关键词
D O I
10.1016/S1053-2498(99)00121-7
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: Because there are few data available on the accuracy of 2D-echocardiography to assess right ventricular (RV) size and function in patients with far-advanced lung disease, in this prospective study, we compared various echocardiographic RV parameters with RV volumes derived from magnetic resonance imaging (MRI). Methods: In 32 patients (18 male, 17 female) presenting for lung transplantation, we measured RV end-diastolic and end-systolic area as well as derived RV fractional area change, long-axis diameter, short-axis diameter, tricuspid valve anulus diameter (using 2D apical or sub-costal 4-chamber view), and RV end-diastolic diameter (using m-mode in the parasternal short-axis view). These values were compared with RV end-diastolic and end-systolic volumes derived by MRI, serving as the gold standard. Results: Right ventricular end-diastolic area was the most accurate echocardiographic parameter of RV size (correlation to MRT: r = 0.88, p < 0.001), followed by RV end-diastolic short-axis diameter (r = 0.75, p < 0.001), long axis diameter (r = 0.66, p < 0.001), and tricuspid valve anulus diameter (r = 0.63, p < 0.001). In contrast, M-mode measurement of RV end-diastolic diameter was possible in only 24/35 (68%) patients and showed a weak correlation to MRI-derived RV end-diastolic volume (r = 0.56, p = 0.004), Right ventricular fractional area change correlated well with MRT-derived RV ejection fraction (r = 0.84, p < 0.0001), In a sub-group analysis, patients with vascular lung disease showed best agreement between both methods for RV end-diastolic area and RV fractional area change compared with patients with restrictive or obstructive lung disease. Conclusion: This study shows that in patients with-far-advanced lung diseases, RV end-diastolic area demonstrated the best correlation with MRI-derived measurement of RV end-diastolic volume, and RV fractional area change compared favorably with MRI-derived ejection fraction. Despite reduced image quality, especially in patients with obstructive lung disease, these parameters can yield clinically valuable information.
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页码:145 / 154
页数:10
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