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Impaired Cardiac Performance Relating to Delayed Left Atrial Activation after Atrial Compartment Operation for Chronic Atrial Fibrillation
Author(s) -
LO HUEYMING,
LIN FANGYUE,
LIN JIUNNLEE,
HSU KUANLIH,
CHIANG FUTIEN,
TSENG CHUENDEN,
TSENG YUNGZU
Publication year - 1999
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1999.tb00456.x
Subject(s) - medicine , cardiology , atrial fibrillation , p wave , sinus rhythm , asystole , cardiac cycle , atrium (architecture) , anesthesia
In the presence of a normal atrial systole and optimal AV delay, atrial kick contributes to a significant fraction of the stroke volume. This atrial contribution may be lost during atrial asystole or mismatch in the timing of atrial and ventricular contraction. A patient received atrial compartment operation for his chronic AF. Although the AF was successfully converted to sinus rhythm, the conduction from the right to left atrium was markedly delayed so that the left atrial and ventricular activations occurred almost simultaneously. This delay in left atrial activation resulted in impaired cardiac performance.