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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1997-4-17
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pubmed:abstractText |
Envenoming by a number of species of snake may affect the myocardium or cause electrocardiographic changes; several different mechanisms have been proposed. In a prospective study of snake bite in Papua New Guinea, electrocardiographic changes were observed in 36 of 69 patients (52%) envenomed by the taipan (Oxyuranus scutellatus), 2 of 6 (33%) envenomed by death adders (Acanthophis sp.) and one envenomed by the brown snake (Pseudonaja textilis). Septal T wave inversion and bradycardias, including atrioventricular block, were the commonest abnormalities. There was no haemodynamic deterioration. The cause of these changes is uncertain; only 2 of 24 patients (8.3%) with electrocardiographic changes had markedly elevated plasma concentrations of cardiac troponin T, a sensitive and specific marker of myocardial damage. This suggests that myocardial damage is uncommon following bites by these species. Electrocardiographic abnormalities are most likely to have been caused by a direct toxic effect of a venom component upon cardiac myocyte function; in taipan bites, taicatoxin, a calcium channel blocker, might be responsible.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0035-9203
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pubmed:author |
pubmed-author:DavidRR,
pubmed-author:HooperLL,
pubmed-author:JamesRR,
pubmed-author:KempM WMW,
pubmed-author:KevauII,
pubmed-author:LallooD GDG,
pubmed-author:LaurensonI FIF,
pubmed-author:NaraqiSS,
pubmed-author:NwokoloNN,
pubmed-author:TheakstonGG,
pubmed-author:TrevettA JAJ,
pubmed-author:WarrellDD
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pubmed:issnType |
Print
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pubmed:volume |
91
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
53-6
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pubmed:dateRevised |
2009-9-29
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pubmed:meshHeading |
pubmed-meshheading:9093629-Animals,
pubmed-meshheading:9093629-Blood Coagulation Disorders,
pubmed-meshheading:9093629-Bradycardia,
pubmed-meshheading:9093629-Cardiomyopathies,
pubmed-meshheading:9093629-Creatine Kinase,
pubmed-meshheading:9093629-Elapid Venoms,
pubmed-meshheading:9093629-Elapidae,
pubmed-meshheading:9093629-Electrocardiography,
pubmed-meshheading:9093629-Hemodynamics,
pubmed-meshheading:9093629-Humans,
pubmed-meshheading:9093629-Myocardium,
pubmed-meshheading:9093629-Papua New Guinea,
pubmed-meshheading:9093629-Prospective Studies,
pubmed-meshheading:9093629-Snake Bites,
pubmed-meshheading:9093629-Troponin,
pubmed-meshheading:9093629-Troponin T
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pubmed:articleTitle |
Electrocardiographic abnormalities in patients bitten by taipans (Oxyuranus scutellatus canni) and other elapid snakes in Papua New Guinea.
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pubmed:affiliation |
Centre for Tropical Medicine, John Radcliffe Hospital, Oxford, UK.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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