Quantitation of Doppler color flow jet areas for mitral regurgitation in children: angiographic correlation
1Department of Pediatric Cardiology, Ankara University, Medical School, Turkey.
Insights
Color Doppler imaging effectively quantifies mitral regurgitation severity in pediatric rheumatic heart disease. Measurements of regurgitant jet area relative to body surface area correlate well with angiographic findings, aiding clinical assessment.
Area of Science:
- Pediatric Cardiology
- Echocardiography
- Rheumatic Heart Disease
Background:
- Chronic isolated rheumatic mitral regurgitation affects children and adolescents.
- Accurate assessment of mitral regurgitation severity is crucial for management.
Purpose of the Study:
- To evaluate the efficacy of color Doppler imaging in quantifying mitral regurgitation severity in pediatric patients.
- To compare Doppler-derived measurements with angiographic findings.
Main Methods:
- Seventeen pediatric patients (7-19 years) with rheumatic mitral regurgitation underwent color Doppler imaging.
- Cardiac catheterization was performed in 16 patients within 24 hours.
- Regurgitant jet area, left atrial area, and body surface area were measured; regurgitant volume and fraction were calculated via angiography.
Main Results:
- Regurgitant jet area showed a good correlation with angiographic mitral regurgitation grade.
- Regurgitant jet area/body surface area ratio demonstrated an excellent correlation with angiographic regurgitant fraction (r=0.85, P<0.001).
- Regurgitant jet area also correlated well with regurgitant fraction (r=0.82, P<0.001).
Conclusions:
- Color Doppler imaging, particularly the regurgitant jet area/body surface area ratio, is a reliable method for predicting mitral regurgitation severity in children.
- This technique is valuable even in cases with eccentric regurgitant jets.
Abstract:
Eighteen patients with chronic isolated rheumatic mitral regurgitation aged between 7 and 19 years (mean age +/-SD, 12.69+/-3.47 years) were analyzed with color Doppler imaging. Sixteen patients were performed cardiac catheterization within 24 h. Jets were classified as eccentric and central. Regurgitant jet area and its ratio to left atrial area and body surface area were measured by Doppler color flow imaging. Regurgitant volume and regurgitant fractions were calculated with angiography. There was a good correlation between regurgitant jet area and angiographic grade of mitral regurgitation (P<0.01). The correlation between regurgitant jet area/left atrial area ratios and angiographic grade of mitral regurgitation was limited (P<0.01). There was excellent correlation between regurgitant jet area/body surface area and angiographic regurgitant fraction (r = 0.85; P<0.001). There was also a good correlation between regurgitant jet area and regurgitant fraction (r = 0.82; P<0.001). However, the relation of regurgitant jet area/left atrial area to regurgitant fraction was weak (r = 0.72; P<0.01). In conclusion, the measurement of regurgitant fraction and its ratios to left atrial area and body surface area by color Doppler flow imaging can predict the angiographic severity in children who have even eccentric regurgitant jets.
Related Concept Videos
01:23Mitral Regurgitation II: Clinical Features and Diagnostic Tests
01:20Mitral Regurgitation I: Introduction
01:23Mitral Stenosis II: Clinical features and Diagnostic Tests