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Related Experiment Videos

Does left ventricular aneurysmectomy improve ventricular function in patients undergoing coronary bypass surgery?

N C Taylor, R Barber, P Crossland

    British Heart Journal
    |August 1, 1985
    PubMed
    Summary

    Left ventricular aneurysmectomy and coronary artery bypass grafting improve exercise capacity and ventricular function in heart failure patients. While resting ejection fraction remains unchanged, symptoms like angina are significantly reduced post-surgery.

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    Area of Science:

    • Cardiology
    • Cardiac Surgery
    • Nuclear Cardiology

    Background:

    • Patients with left ventricular aneurysm often suffer from congestive heart failure and angina pectoris.
    • Surgical interventions aim to improve cardiac function and alleviate symptoms in these patients.

    Purpose of the Study:

    • To evaluate the impact of left ventricular aneurysmectomy combined with coronary artery bypass grafting on cardiac function and symptoms.
    • To assess changes in ventricular scintigraphy at rest and during exercise before and after surgical intervention.

    Main Methods:

    • Multiple gated ventricular scintigraphy (rest and exercise) was performed on 14 patients before and at 6 weeks and 6 months after surgery.
    • Assessment included left ventricular ejection fraction and regional wall motion score.

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  • Patient-reported symptoms (angina) and functional class were also monitored.

    • Main Results:

    • Significant improvement in exercise workload and abolition of exercise-induced regional contraction abnormalities were observed 6 weeks post-surgery.
    • Angina symptoms resolved in all surviving patients at 6 weeks, with improved functional class.
    • Resting left ventricular ejection fraction showed no significant change, though regional wall motion scores improved.

    Conclusions:

    • Left ventricular aneurysmectomy and coronary artery bypass grafting can improve exercise tolerance, exercise ventricular function, and reduce angina symptoms.
    • The combined surgical approach offers significant symptomatic and functional benefits, despite no improvement in resting ejection fraction.
    • The distinct contributions of aneurysmectomy versus coronary artery bypass grafting to these improvements require further investigation.