Document Detail


Out-of-hospital pleomorphic ventricular tachycardia and resuscitation: association with acute myocardial ischemia and infarction.
MedLine Citation:
PMID:  1416316     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Pleomorphic ventricular tachycardia is characterized by QRS complexes with repeated variation in polarity, amplitude, and regularity. When associated with prolongation of the QT interval, the term torsades de pointes is used to describe the arrhythmia. It usually is seen clinically in association with class IA antiarrhythmic drugs such as quinidine and procainamide, bradycardia, hypokalemia, and, much less often, other drugs and electrolyte disorders as well as a result of congenital and neurogenic causes. It also may accompany acute myocardial infarction or ischemia. We describe four patients in whom pleomorphic ventricular tachycardia was observed as the presenting rhythm or during the course of resuscitation in out-of-hospital cardiac arrest. In all four patients, acute myocardial ischemia appeared to be the provocative mechanism. Therapeutic implications include an awareness of the unusual behavior of this arrhythmia, especially its propensity to terminate spontaneously. Such awareness may prevent the delivery of unnecessary defibrillatory shocks.
Authors:
R D White; D L Wood
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Annals of emergency medicine     Volume:  21     ISSN:  0196-0644     ISO Abbreviation:  Ann Emerg Med     Publication Date:  1992 Oct 
Date Detail:
Created Date:  1992-11-06     Completed Date:  1992-11-06     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8002646     Medline TA:  Ann Emerg Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1282-7     Citation Subset:  AIM; IM    
Affiliation:
Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota.
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MeSH Terms
Descriptor/Qualifier:
Acute Disease
Aged
Cardiopulmonary Resuscitation
Electrocardiography
Heart Arrest / etiology,  therapy
Humans
Male
Middle Aged
Myocardial Infarction / complications*
Myocardial Ischemia / complications*
Tachycardia, Ventricular / etiology*,  physiopathology
Comments/Corrections
Comment In:
Ann Emerg Med. 1993 Aug;22(8):1368-9   [PMID:  8333647 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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