Related Experiment Videos
Systolic and diastolic function after patch reconstruction of left ventricular aneurysms
T Kawata1, S Kitamura, K Kawachi
1Department of Surgery III, Nara Medical College, Japan.
The Annals of Thoracic Surgery
|February 1, 1995
Summary
Patch reconstruction of left ventricular aneurysms significantly improves systolic and diastolic function. This surgical technique restores heart function, with benefits observed both soon after surgery and long-term.
Area of Science:
- Cardiology
- Cardiac Surgery
- Cardiovascular Research
Background:
- Postinfarction left ventricular aneurysms impair cardiac function.
- Surgical outcomes for these aneurysms, particularly regarding left ventricular function, require further investigation.
Purpose of the Study:
- To evaluate the impact of Dacron patch reconstruction on left ventricular systolic and diastolic function in patients with postinfarction left ventricular aneurysms.
Main Methods:
- Sixteen patients with anteroseptal-lateral left ventricular aneurysms underwent left ventricular reconstruction using a Dacron patch.
- Coronary artery bypass grafting was performed in nine patients concurrently.
- Ejection fraction, ventricular pressures, volumes, and filling rates were assessed pre- and postoperatively.
Main Results:
- Ejection fraction significantly increased at rest (0.28 to 0.39) and during exercise (0.32 to 0.41).
- Left ventricular end-diastolic pressure and volume index significantly decreased.
- Peak filling rate and mitral valve flow velocities improved, indicating enhanced diastolic function.
Conclusions:
- Dacron patch reconstruction effectively restores both systolic and diastolic left ventricular function after myocardial infarction.
- These functional improvements are sustained in the late postoperative period, suggesting a durable therapeutic effect.