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[Cineangiographic left ventricular dimensional analysis in normal subjects and patients with coronary disease]
Insights
Coronary heart disease impairs left ventricular function, even with normal ventriculograms. Wall motion abnormalities like hypokinesis or aneurysms further reduce function, with anterior wall lesions having a greater impact.
Area of Science:
- Cardiology
- Cardiovascular Imaging
- Echocardiography
Context:
- Assessing left ventricular (LV) function is crucial in diagnosing and managing coronary artery disease (CAD).
- Cineangiography provides detailed insights into LV mechanics and morphology.
Purpose:
- To evaluate the correlation between CAD severity and LV function using cineangiographic parameters.
- To investigate the impact of specific LV wall motion abnormalities on cardiac function in CAD patients.
Summary:
- Left ventricular function is depressed in CAD patients, irrespective of coronary lesion severity.
- Hypokinesis or aneurysms significantly impair LV function, with anterior wall abnormalities causing more severe dysfunction than posterior ones.
- No direct correlation was found between CAD severity and morphological LV wall lesions, but functional impairment is evident.
Impact:
- This study highlights the functional consequences of CAD on the left ventricle.
- Findings emphasize the importance of assessing LV wall motion abnormalities for accurate prognosis and treatment planning in CAD.
- Results suggest that the location of wall motion abnormalities influences the degree of LV dysfunction.
Abstract:
The cineangiographically determined left ventricular function was studied in normals and in CAD-patients with one- and three-vessel disease. From single plane RAO-LV-cineangiograms following parameters were calculated; LV-volumes (EDV, ESV) according to the area-length method, ejection fraction (EF), percentage shortening of the medial perpendicular short axis delta (M,deltaMpl), mean velocity of circumferential fiber shortening (V(CF), V(CFPL)). It can be concluded that there is 1. no correlation between the severity of coronary heart disease and the morphological left ventricular wall lesions, 2. a depressed left ventricular function in coronary heart disease and normal ventriculograms, 3. a more impaired left ventricular function when cineangiograms show hypokinesis or aneurysms, 4. hypokinesis or aneurysms in the anterior wall leads to a more depressed left ventricular function than the same lesions in the posterior wall.