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Related Experiment Videos

Permanent atrial standstill

P Rakovec, M Kenda

    Cor Et Vasa
    |January 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    A rare tachycardia-bradycardia syndrome led to permanent atrial standstill in a patient. Ventricular pacemaker insertion resolved symptoms, improving exercise tolerance.

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    Area of Science:

    • Cardiology
    • Electrophysiology
    • Internal Medicine

    Background:

    • Tachycardia-bradycardia syndrome can manifest with diverse cardiac arrhythmias.
    • Long-term cardiac dysfunction may progress to severe atrial abnormalities.

    Observation:

    • A patient experienced a decade of dizzy spells and syncope attributed to tachycardia-bradycardia syndrome.
    • Progressive condition led to permanent atrial standstill, confirmed by ECG, hemodynamic, and electrophysiological assessments.

    Findings:

    • Permanent atrial standstill presented as a slow supraventricular rhythm lacking P waves and atrial "a" waves.
    • The atria showed immobility on fluoroscopy and were refractory to electrical stimulation.
    • The specific etiology and etiopathogenesis of this rare atrial paralysis remain undetermined.

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    Implications:

    • Successful management of atrial standstill was achieved with an "on demand" ventricular pacemaker.
    • Pacemaker implantation significantly improved the patient's quality of life and exercise capacity.
    • This case highlights the importance of considering rare arrhythmias in unexplained syncope and bradycardia.