Wide complex tachycardia electrophysiologic testing: Difference between revisions
Line 13: | Line 13: | ||
==Invasive Electrophysiologic Testing== | ==Invasive Electrophysiologic Testing== | ||
Induction of the wide complex tachycardia often requires burst pacing or premature stimulation at both varying cycle lengths and sites both with and without beta stimulation. While a wide complex tachycardia may be induced, it is critical to confirm that the morphology of the wide complex tachycardia and it's rate is identical to that that was observed in the clinical scenario that brought the patient to medical attention. | Induction of the wide complex tachycardia often requires burst pacing or premature stimulation at both varying cycle lengths and sites both with and without beta stimulation. While a wide complex tachycardia may be induced, it is critical to confirm that the morphology of the wide complex tachycardia and it's rate is identical to that that was observed in the clinical scenario that brought the patient to medical attention.<ref name="pmid16951728">{{cite journal |author=Lam P, Saba S |title=Approach to the evaluation and management of wide complex tachycardias |journal=[[Indian Pacing and Electrophysiology Journal]] |volume=2 |issue=4 |pages=120–6 |year=2002 |pmid=16951728 |pmc=1557420 |doi= |url=http://www.ipej.org/2/120 |issn= |accessdate=2013-08-04}}</ref> | ||
It can be quite difficult to differentiate retrograde 1:1 VA activation during [[VT]] from an [[SVT]], and a His bundle electrogram is very helpful in this regard. | It can be quite difficult to differentiate retrograde 1:1 VA activation during [[VT]] from an [[SVT]], and a His bundle electrogram is very helpful in this regard.<ref name="pmid16951728">{{cite journal |author=Lam P, Saba S |title=Approach to the evaluation and management of wide complex tachycardias |journal=[[Indian Pacing and Electrophysiology Journal]] |volume=2 |issue=4 |pages=120–6 |year=2002 |pmid=16951728 |pmc=1557420 |doi= |url=http://www.ipej.org/2/120 |issn= |accessdate=2013-08-04}}</ref> | ||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} |
Revision as of 22:10, 4 August 2013
Wide complex tachycardia Microchapters |
Diagnosis |
---|
Treatment |
Case Studies |
Wide complex tachycardia electrophysiologic testing On the Web |
American Roentgen Ray Society Images of Wide complex tachycardia electrophysiologic testing |
Wide complex tachycardia electrophysiologic testing in the news |
Blogs on Wide complex tachycardia electrophysiologic testing |
Risk calculators and risk factors for Wide complex tachycardia electrophysiologic testing |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
If the available 12 lead electrocardiograms, rhythm strips, and continuous electrocardiographic monitoring does not permit differentiation of ventricular tachycardia from supraventricular tachycardia with aberrant conduction as a cause of the wide complex tachycardia, then the performance of invasive electrophysiologic testing is a Class I indication in the American Heart Association American college cardiology guidelines.
Invasive Electrophysiologic Testing
Induction of the wide complex tachycardia often requires burst pacing or premature stimulation at both varying cycle lengths and sites both with and without beta stimulation. While a wide complex tachycardia may be induced, it is critical to confirm that the morphology of the wide complex tachycardia and it's rate is identical to that that was observed in the clinical scenario that brought the patient to medical attention.[1]
It can be quite difficult to differentiate retrograde 1:1 VA activation during VT from an SVT, and a His bundle electrogram is very helpful in this regard.[1]
References
- ↑ 1.0 1.1 Lam P, Saba S (2002). "Approach to the evaluation and management of wide complex tachycardias". Indian Pacing and Electrophysiology Journal. 2 (4): 120–6. PMC 1557420. PMID 16951728. Retrieved 2013-08-04.