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Left ventricular wall motion abnormalities in chronic mitral and aortic valvular disease
1Guangdong Provincial Cardiovascular Institute, Guangdong Provincial Hospital, Guangzhou.
Insights
This study analyzed left ventricular wall motion in patients with valvular heart disease, finding reduced motion in specific regions. This analysis helps predict patient outcomes after valve replacement surgery.
Area of Science:
- Cardiology
- Medical Imaging Analysis
Background:
- Valvular heart diseases significantly impact cardiac function.
- Accurate assessment of left ventricular function is crucial for patient management.
Purpose of the Study:
- To analyze left ventricular wall motion in patients with mitral and aortic valvular diseases.
- To identify correlations between wall motion abnormalities and patient prognosis after valve replacement.
Main Methods:
- Contrast ventriculography in 42 patients.
- Computer-aided 100-chords centerline method for wall motion analysis.
Main Results:
- Decreased ventricular wall motion observed in anterobasal and mitral valve regions.
- 15 patients exhibited additional localized abnormalities in anteroapical and posterobasal regions.
- Reduced ejection fraction (EF < 0.5) correlated with diffuse or localized hypokinesis.
- Lower ventricular wall motion in early cardiac death survivors post-valve replacement.
Conclusions:
- Left ventricular wall motion analysis provides insights into valvular heart disease.
- A predictive formula for early prognosis after valve replacement can be established using Fisher's judgement method.
Abstract:
Left ventricular wall motion was analyzed from the contrast ventriculograms of 42 patients with mitral and aortic valvular diseases by the computer-aided 100-chords centerline method. The results showed that ventricular wall motion was decreased in the anterobasal and mitral valve regions in patients with mitral aortic valvular diseases. In 15 patients, there were also other local ventricular wall motion abnormalities, which were located in the anteroapical and posterobasal regions. Almost all of the patients with ejection fraction(EF) less than 0.5 had diffuse or localized hypokinesis. Ventricular wall motion in patients who died from cardiac causes early after receiving valvular replacement was lower than that of survivors. Using Fisher's judgement method, a formula could be established to predict the early prognosis of patients with chronic valvular diseases after valve replacement.