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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
12
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pubmed:dateCreated |
1979-5-24
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pubmed:abstractText |
The electrophysiological properties of Mexiletine were investigated by endocavitary His Bundle recording and programmed electrical stimulation of the heart in 30 patients. Differing dosage (2, 2.7 and 3.4 mg/kg) were given intravenously in 3 groups of 10 patients. The effects on the length of the sinus cycle, conduction intervals and cardiac refractory periods were observed and the following results obtained : 1. Sinus rhythm increased at all dosages but this effect was much more pronounced with 3.4 mg/kg dosage (--12.8% +/- 2.81% : : % shortening of sinus cycle with respect to the basal cycle +/- SD, p less than 0.005); 2. Atrioventricular nodal conduction time (A-H interval) decreased, the effect being more marked with the larger dose regimes; 3.His-Pirkinje conduction time (H-V interval) unaltered except in 3 cases where it increased by 5 ms after injection of 2.7 mg/kg; 4. Relative refractory period of His-Parkinje system shortened, this effect also being more pronounced with the larger doses ( --3.75 +/- 0.25% :2.7 mg/kg, p less than 0,001; -- 7 +/- 1.46% 3.4 mg/kg, p less than 0.005). In conclusion, the changes observed in the His-Purkinje system after mexiletine were similar to those of Lignocaine and Diphenylhydantoin. The drug also appears to have a marked vagal inhibitory effect as shown by the acceleration of the sinus rhythm and reduced atrioventricular conduction times.
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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 |
Dec
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pubmed:issn |
0003-9683
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
71
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1429-37
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pubmed:dateRevised |
2009-2-13
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pubmed:meshHeading |
pubmed-meshheading:106799-Adult,
pubmed-meshheading:106799-Aged,
pubmed-meshheading:106799-Bundle of His,
pubmed-meshheading:106799-Dose-Response Relationship, Drug,
pubmed-meshheading:106799-Electrophysiology,
pubmed-meshheading:106799-Female,
pubmed-meshheading:106799-Heart Conduction System,
pubmed-meshheading:106799-Humans,
pubmed-meshheading:106799-Male,
pubmed-meshheading:106799-Mexiletine,
pubmed-meshheading:106799-Middle Aged,
pubmed-meshheading:106799-Propylamines,
pubmed-meshheading:106799-Purkinje Fibers,
pubmed-meshheading:106799-Sinoatrial Node
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pubmed:year |
1978
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pubmed:articleTitle |
[Electrophysiological study on mexiletine in man with reference to dose-response relation].
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pubmed:publicationType |
Journal Article,
English Abstract
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