TY - JOUR
T1 - AV dissociation, an inevitable response
AU - Wang, Kyuhyun
AU - Benditt, David G
PY - 2011/7
Y1 - 2011/7
N2 - Background: The independent activation of the atria and ventricles, AV dissociation, is a common phenomenon that occurs during a wide variety of electrophysiologic circumstances. The clinical significance of AV dissociation is often misunderstood. Methods: This article examines the basis and clinical implications of AV dissociation. Results: AV dissociation is often an obligatory, secondary phenomenon, and should not be construed as the primary disorder; it may be due to either the AV conduction system being completely blocked (3° AV block) or the P wave and the QRS complex being generated from separate sources (usually, the AV junction or ventricle) but occurring close together during the physiologic refractory period of each other. The latter may happen in junctional or ventricular arrhythmias including escape or accelerated rhythm, tachycardia, or premature beats. Conclusion: The crucial clinical point is not the AV dissociation itself, but that an underlying triggering primary disorder is present and should be identified.
AB - Background: The independent activation of the atria and ventricles, AV dissociation, is a common phenomenon that occurs during a wide variety of electrophysiologic circumstances. The clinical significance of AV dissociation is often misunderstood. Methods: This article examines the basis and clinical implications of AV dissociation. Results: AV dissociation is often an obligatory, secondary phenomenon, and should not be construed as the primary disorder; it may be due to either the AV conduction system being completely blocked (3° AV block) or the P wave and the QRS complex being generated from separate sources (usually, the AV junction or ventricle) but occurring close together during the physiologic refractory period of each other. The latter may happen in junctional or ventricular arrhythmias including escape or accelerated rhythm, tachycardia, or premature beats. Conclusion: The crucial clinical point is not the AV dissociation itself, but that an underlying triggering primary disorder is present and should be identified.
KW - AV block
KW - AV dissociation
KW - interference dissociation
KW - tachycardia
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U2 - 10.1111/j.1542-474X.2011.00436.x
DO - 10.1111/j.1542-474X.2011.00436.x
M3 - Review article
C2 - 21762249
AN - SCOPUS:79960600548
SN - 1082-720X
VL - 16
SP - 227
EP - 231
JO - Annals of Noninvasive Electrocardiology
JF - Annals of Noninvasive Electrocardiology
IS - 3
ER -