Related Experiment Videos
[Left ventricular performance after patch reconstruction of the left ventricular wall for postinfarction left
T Kawata1, K Kawachi, S Kitamura
1Department of Surgery III, Nara Medical College, Kashihara, Japan.
[Zasshi] [Journal]. Nihon Kyobu Geka Gakkai
|October 1, 1992
Summary
Left ventricular aneurysm repair with patch reconstruction significantly improves ejection fraction and diastolic function. This surgical approach enhances overall cardiac performance in patients with left ventricular aneurysms.
Area of Science:
- Cardiology
- Cardiac Surgery
- Biomedical Engineering
Context:
- Left ventricular aneurysms (LVA) impair cardiac function.
- Surgical outcomes of LVA treated with patch reconstruction are not well-documented.
- Assessing left ventricular performance post-LVA repair is crucial for patient management.
Purpose:
- To evaluate the impact of patch reconstruction on left ventricular (LV) performance in patients with LVA.
- To assess changes in ejection fraction (EF), filling fraction (1/3FF), and peak filling rate (PFR) before and after surgery.
- To analyze the A/R ratio using Doppler echocardiography to understand diastolic function dynamics.
Summary:
- This study analyzed 15 patients (14 male, 1 female, average age 59) who underwent LVA patch reconstruction using Dacron.
- Preoperative and postoperative cardiac function parameters including EF, 1/3FF, PFR, and A/R ratio were measured.
- Significant improvements were observed in resting and exercise EF, 1/3FF, PFR, and A/R ratio post-surgery, indicating enhanced LV performance.
Impact:
- Patch reconstruction of LVAs leads to significant improvements in global and contractile ejection fraction.
- The procedure positively impacts diastolic function, evidenced by increased filling fraction and peak filling rate.
- Sustained improvement in the A/R ratio suggests long-term benefits for cardiac function after LVA repair.