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[Differences in left ventricular shape between aortic and mitral regurgitation: an echocardiographic study].
1Department of Internal Medicine, School of Medicine, Juntendo University, Tokyo.
Journal of Cardiology
|September 1, 1989
Summary
This study investigated left ventricular long axis in patients with aortic regurgitation (AR) and mitral regurgitation (MR). Results indicate left ventricular elongation in AR patients compared to controls, suggesting a potential diagnostic marker.
Area of Science:
- Cardiology
- Cardiac Imaging
- Echocardiography
Background:
- Aortic regurgitation (AR) can affect left ventricular (LV) geometry.
- Understanding LV dimensional changes is crucial for AR assessment.
Purpose of the Study:
- To determine if the long axis of the left ventricle is elongated in patients with aortic regurgitation.
- To compare LV dimensions in AR patients with those with mitral regurgitation (MR) and healthy controls.
Main Methods:
- Two-dimensional echocardiography was used to evaluate 14 AR patients, 17 MR patients, and 15 controls.
- Measurements included LV long-axis distances (outflow, total, inflow tracts) and short-axis dimensions.
- Data were indexed to body surface area for comparison.
Main Results:
- Patients with moderate to severe AR exhibited elongated LV long-axis dimensions.
- No significant differences were found in the duration of the clinical course between AR and MR groups.
- LV dimensions were compared between AR, MR, and control groups.
Conclusions:
- Left ventricular long-axis elongation is present in patients with aortic regurgitation.
- Echocardiographic assessment of LV long-axis may aid in diagnosing and characterizing AR.
- Further research is warranted to explore the clinical implications of LV elongation in AR.