Accelerated idioventricular rhythm differential diagnosis: Difference between revisions
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==Overview== | ==Overview== | ||
AIVR must be distinguished from [[normal sinus rhythm]], | |||
==Normal Sinus Rhythm== | |||
Because of its slower rate, AIVR may resemble [[normal sinus rhythm]] ([[NSR]]). Look for numerous [[fusion beats]] to distinguish it from [[NSR]]. Given the difficulty in distiguishing these rhythms, the term accelerated isorhythmic ventricular rhythm has been suggested. | |||
== | ==Junctional Tachycardia== | ||
# Must be distinguished from junctional tachycardia with preexisting IVCDs. But in these patients there are no fusion or capture beats. | |||
==Slow Ventricular Tachycardia== | |||
In general, the rate of AIVR is slower (<100-120 bpm) than [[ventricular tachycardia]] (at least 100-120 bpm). There can, however, be overlap in the rate associated with AIVR and slow [[VT]]. The distinction is critical as misdiagnosis as slow VT can results in inappropriate therapy such as [[cardioversion]] and [[anti-arrhythmic]] administration. | |||
{{reflist|2}} | {{reflist|2}} | ||
{{WH}} | {{WH}} | ||
{{WS}} | {{WS}} | ||
Revision as of 23:51, 3 September 2012
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Accelerated idioventricular rhythm Microchapters |
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Differentiating Accelerated idioventricular rhythm from other Diseases |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
AIVR must be distinguished from normal sinus rhythm,
Normal Sinus Rhythm
Because of its slower rate, AIVR may resemble normal sinus rhythm (NSR). Look for numerous fusion beats to distinguish it from NSR. Given the difficulty in distiguishing these rhythms, the term accelerated isorhythmic ventricular rhythm has been suggested.
Junctional Tachycardia
- Must be distinguished from junctional tachycardia with preexisting IVCDs. But in these patients there are no fusion or capture beats.
Slow Ventricular Tachycardia
In general, the rate of AIVR is slower (<100-120 bpm) than ventricular tachycardia (at least 100-120 bpm). There can, however, be overlap in the rate associated with AIVR and slow VT. The distinction is critical as misdiagnosis as slow VT can results in inappropriate therapy such as cardioversion and anti-arrhythmic administration.