Document Detail


Valsalva termination of ventricular tachycardia.
MedLine Citation:
PMID:  6773699     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Nine patients with recurrent ventricular tachycardia (VT) that could be repeatedly terminated by a Valsalva maneuver are described. In two, the tachycardia would cease for only a few seconds and then resume, whereas in seven, the tachycardia could be permanently and reproducibly terminated with a Valsalva maneuver. In all patients the tachycardia ended during the strain phase of the Valsalva maneuver, when blood pressure and radiographic measurement indicated that cardiac dimensions had been reduced dramatically. The speed with which the Valsalva maneuver terminated VT incresed in direct proportion to the strain pressure. Maneuvers such as standing or nitroglycerin, which independently reduce cardiac dimensions, enhanced the potency of the Valsalva maneuvers. Pretreatment with atropine or propranolol in four patients did not alter the response of VT to the Valsalva maneuver. Thus, it appears that a strong Valsalva maneuver can terminate some forms of VT, most likely related to an abrupt reduction in cardiac dimensions.
Authors:
M B Waxman; R W Wald; J P Finley; J F Bonet; E Downar; A D Sharma
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Circulation     Volume:  62     ISSN:  0009-7322     ISO Abbreviation:  Circulation     Publication Date:  1980 Oct 
Date Detail:
Created Date:  1980-11-24     Completed Date:  1980-11-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0147763     Medline TA:  Circulation     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  843-51     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Atropine / therapeutic use
Cardiac Pacing, Artificial
Child
Electrophysiology
Female
Humans
Male
Middle Aged
Nitroglycerin / therapeutic use
Propranolol / therapeutic use
Tachycardia / drug therapy,  therapy*
Time Factors
Valsalva Maneuver*
Chemical
Reg. No./Substance:
51-55-8/Atropine; 525-66-6/Propranolol; 55-63-0/Nitroglycerin

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


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