| Out-of-hospital pleomorphic ventricular tachycardia and resuscitation: association with acute myocardial ischemia and infarction. | |
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MedLine Citation:
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PMID: 1416316 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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R D White; D L Wood |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Annals of emergency medicine Volume: 21 ISSN: 0196-0644 ISO Abbreviation: Ann Emerg Med Publication Date: 1992 Oct |
Date Detail:
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Created Date: 1992-11-06 Completed Date: 1992-11-06 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8002646 Medline TA: Ann Emerg Med Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1282-7 Citation Subset: AIM; IM |
Affiliation:
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Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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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:
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Ann Emerg Med. 1993 Aug;22(8):1368-9
[PMID:
8333647
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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