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Present indications for a myocardial pacemaker electrode

S Larsson, C Arén, J Swedberg

    Scandinavian Journal of Thoracic and Cardiovascular Surgery
    |January 1, 1977
    PubMed
    Summary
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    Myocardial electrode implantation via thoracotomy offers satisfactory results for specific pacemaker patients. This method serves as a viable alternative when endocardial lead pacing fails, though surgical risks require careful consideration.

    Area of Science:

    • Cardiology
    • Cardiac Electrophysiology
    • Cardiovascular Surgery

    Background:

    • Transvenous lead implantation is the standard for pacemaker electrodes.
    • Myocardial electrodes are utilized for specific indications where transvenous approaches may fail or are unsuitable.

    Purpose of the Study:

    • To report the complications and outcomes of myocardial electrode implantation.
    • To discuss indications and advantages of myocardial electrodes.
    • To evaluate the Medtronic myocardial electrode model 6917 as an alternative pacing strategy.

    Main Methods:

    • Implantation of myocardial electrodes in 43 patients with special indications.
    • Surgical techniques included small anterior thoracotomy or open-heart surgery.
    • Follow-up period of two-and-a-half years to assess complications and mortality.

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    Main Results:

    • The overall results of myocardial electrode implantation were satisfactory.
    • The Medtronic myocardial electrode model 6917 demonstrated effectiveness as an alternative to endocardial leads.
    • Complications and deaths were documented during the follow-up period.

    Conclusions:

    • Myocardial electrodes are a valuable alternative for pacemaker implantation failure.
    • Careful consideration of thoracotomy hazards is essential, especially in elderly patients or those with severe heart disease.
    • Specific indications for myocardial electrode use should be further defined.