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Related Experiment Videos

Pacemaker dependence in transient high-grade atrioventricular block.

M Rosenqvist, K O Edhag

    Pacing and Clinical Electrophysiology : PACE
    |January 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

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    Pacemaker dependence can persist even after recovery from high-grade atrioventricular block. Patients with recovered conduction often remain pacemaker-dependent, highlighting the need for continued pacing.

    Area of Science:

    • Cardiology
    • Electrophysiology

    Background:

    • High-grade atrioventricular block necessitates pacemaker implantation.
    • Assessing pacemaker dependence after conduction recovery is clinically important.

    Observation:

    • Prospective study of 16 patients with recovered atrioventricular conduction after pacemaker implantation.
    • Six patients developed recurrent high-grade atrioventricular block during long-term follow-up (median 62 months).
    • Five additional patients with bradycardia pacemakers showed dependence despite recovered conduction (median 7 months).

    Findings:

    • Pacemaker dependence was observed in patients even after recovery of atrioventricular conduction.
    • Recurrence of atrioventricular block was not linked to specific patient characteristics or follow-up duration.

    Related Experiment Videos

  • Conventional methods may underestimate pacemaker dependence in these patients.

    • Implications:

    • Clinical assessment of conduction defect prognosis is limited in patients with recovered spontaneous rhythm.
    • Discontinuation of pacing is not advised, even with sustained conducted heart rhythm.
    • Bradycardia-indicating pacemakers frequently demonstrate dependence in patients with recovered conduction.