The term AV dissociation indicates the presence of independent excitation of atria and ventricles, and is an inevitable secondary phenomenon in response to any of several primary rhythm disorders. It is the primary disturbance that is important (e.g., ventricular tachycardia or accelerated junctional rhythm, etc.)
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Jul 22, 2022 · Complete AV dissociation occurs when the atria and the ventricles activate independently from one another and the atrial rate is slower or equal ...
Jul 24, 2023 · The term atrioventricular (AV) dissociation describes a family of arrhythmias where independent pacemakers control the atria and ventricles.
AV dissociation is characterized by independent atrial and ventricular rhythms, the duration of which ranges from fleeting (greater than or equal to a single ...
Jul 22, 2022 · Atrioventricular (AV) dissociation is a condition in which the atria and ventricles do not activate in a synchronous fashion but beat ...
Transient AV dissociation is caused by competing atrial, and junctional or ventricular rhythms with similar rates (so-called isorhythmic AV dissociation).
When both atrial and ventricular rates are approximately the same, resulting in apparent association of the rhythms, the AV dissociation is termed isorhythmic.
AV dissociation can occur with slowing of the physiological pacemaker as occurs in the setting profound sinus bradycardia with a junctional escape rhythm.
AIVR, also known as Accelerated Ventricular Rhythm, results when the rate of an ectopic ventricular pacemaker exceeds that of the sinus node.
AV dissociation may be found in the presence of a slow sinus or atrial rhythm ... The rhythm in this tracing is either sinus rhythm with first-degree AV ...
