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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1994-7-18
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pubmed:abstractText |
The aim of this retrospective study was to determine the mechanism of syncope in idiopathic hypertrophic cardiomyopathy (HCM). An electrocardiographic study was undertaken in 43 patients with HCM: 27 (Group I) had a history of syncope and 16 (Group II) had no history of syncope but were investigated for conduction defects (n = 7) or unsustained ventricular tachycardia (VT) (n = 9). The stimulation protocol used programmed atrial pacing with 1 and 2 extrastimuli and ventricular pacing using up to 3 extrastimuli delivered at 2 sites. The following results were obtained: sustained atrial fibrillation (AF) (> 1 min) was induced in 21 patients in Group I (78%), 4 in Group II (25%); VT was induced in 3 patients in Group I (11%), and 3 in Group II (19%); infra-Hisian block was detected in 1 patient in Group I. The mechanism of syncope was elucidated in 23 patients in Group I (85%): one atrioventricular block 1 sinus node dysfunction, 18 atrial fibrillations, 2 associations of AF-VT and 1 VT. The authors conclude that the prevalence of inducible AF was higher in patients with HCA and syncope than in controls and HCM without syncope: this was the only detectable difference in 67% of patients with unexplained syncope. Paroxysmal AF could therefore explain malaise or syncope in up to 2/3 of cases of HCM.
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pubmed:language |
fre
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0003-9683
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
86
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
1573-8
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pubmed:dateRevised |
2009-2-13
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pubmed:meshHeading |
pubmed-meshheading:8010857-Adult,
pubmed-meshheading:8010857-Aged,
pubmed-meshheading:8010857-Ajmaline,
pubmed-meshheading:8010857-Arrhythmias, Cardiac,
pubmed-meshheading:8010857-Atrial Fibrillation,
pubmed-meshheading:8010857-Cardiac Pacing, Artificial,
pubmed-meshheading:8010857-Cardiomyopathy, Hypertrophic,
pubmed-meshheading:8010857-Female,
pubmed-meshheading:8010857-Humans,
pubmed-meshheading:8010857-Isoproterenol,
pubmed-meshheading:8010857-Male,
pubmed-meshheading:8010857-Middle Aged,
pubmed-meshheading:8010857-Retrospective Studies,
pubmed-meshheading:8010857-Syncope
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pubmed:year |
1993
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pubmed:articleTitle |
[Paroxysmal atrial fibrillation: main cause of syncope in hypertrophic cardiomyopathy].
|
pubmed:affiliation |
Service de cardiologie A, CHU Brabois, Vandoeuvre.
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pubmed:publicationType |
Journal Article,
English Abstract
|