Document Detail

Evaluation of arrhythmic causes of syncope: correlation between Holter monitoring, electrophysiologic testing, and body surface potential mapping.
MedLine Citation:
PMID:  1950999     Owner:  NLM     Status:  MEDLINE    
Holter monitoring, electrocardiographic (ECG) signal-averaging, body surface potential mapping (BSPM) for PQRST isoarea maps, and electrophysiologic study (EPS) were performed in 100 patients with syncope. Coronary artery disease (CAD) was found in 46 patients and other heart disease was found in 19. EPS was diagnostic in 44 patients, while Holter monitoring suggested a diagnosis in only 21 patients. Abnormal BSPM was frequently seen (56%), especially in CAD (70%), or with inducible ventricular tachycardia (VT) (87%). Late potentials were recorded in 13 patients with CAD; five had inducible VT. In seven other patients with VT, they were either absent or bundle branch block (BBB) was found. Thirteen deaths (three sudden) occurred in our series. EPS-guided therapy resulted in a low rate of total cardiac death. In conclusion, EPS had a higher diagnostic yield than Holter monitoring regardless of cardiac pathology. ECG signal-averaging was useful in predicting VT only in patients with CAD without BBB. BSPM was abnormal in most patients with cardiac disease, but poorly predicted VT.
D Lacroix; M Dubuc; T Kus; P Savard; M Shenasa; R Nadeau
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  American heart journal     Volume:  122     ISSN:  0002-8703     ISO Abbreviation:  Am. Heart J.     Publication Date:  1991 Nov 
Date Detail:
Created Date:  1991-12-04     Completed Date:  1991-12-04     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0370465     Medline TA:  Am Heart J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1346-54     Citation Subset:  AIM; IM    
Research Center, Hôpital du Sacré-Coeur de Montréal, Québec, Canada.
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MeSH Terms
Arrhythmias, Cardiac / complications,  diagnosis*
Cardiac Pacing, Artificial* / methods
Coronary Disease / complications,  diagnosis
Electrocardiography* / instrumentation,  methods
Electrocardiography, Ambulatory*
Evaluation Studies as Topic
Heart / physiopathology
Heart Catheterization
Syncope / diagnosis*,  etiology

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

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