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  • Title: [Biatrial pacing--new possibility in the non-pharmacologic treatment of drug-resistant paroxysmal atrial fibrillation].
    Author: Merkely B, Vágó H, Gellér L, Zima E, Tomcsányi J, Bodor E.
    Journal: Orv Hetil; 2001 Feb 04; 142(5):235-40. PubMed ID: 11243011.
    Abstract:
    Biatrial pacing seems to be a possible non-pharmacological therapeutic choice in the prevention of drug-refractory, paroxysmal atrial fibrillation. Biatrial pacing using standard right atrial and coronary sinus left atrial pacing shows an antiarrhythmic effect, which mechanism is not well understood. Biatrial pacemaker was implanted in three patients suffering from drug refractory, symptomatic paroxysmal atrial fibrillation (lone and nonvalvular in 2 and in one case, respectively). Interatrial conduction disturbance (P > 120 ms) was found in three case. Bradycardia dependent arrhythmia development was not observed. Left atrial and right atrial premature beats dominated in 2 and in one case, respectively. P-wave duration was decreased by biatrial pacing in every patients. Atrial fibrillation has not been detected in two patients 1 day and 4 weeks after pacemaker implantation (follow up period: 9 and 5 months), however antiarrhythmic drugs has been withdrawn. In the number of left atrial premature beats a marked decrease was observed. Neither biatrial nor standard right atrial pacing nor combined medical and atrial pacing antiarrhythmic therapy were proven to be effective. In Hungary we were the first to implant and apply effectively biatrial pacemaker in the prevention of paroxysmal drug-refractory atrial fibrillation. However better identification the responding patients subgroup with atrial fibrillation is needed.
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