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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1986-4-30
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pubmed:abstractText |
Percutaneous transluminal coronary angioplasty (PTCA = TCA) was performed in 38 patients with coronary single vessel disease. Coronary angiograms were analysed to detect the influence of mechanical as well as nitroglycerin-induced dilation on organic stenoses, prestenotic and poststenotic coronary segments and non-stenosed reference vessels. 28 patients (group I) were evaluated retrospectively. Bolus injection of 0.5 mg of nitroglycerin (NTG) was followed by an increase in all measured segments: prestenotic segments +15.4%, stenoses +17.9%, poststenotic segments +39.3%, reference segment of a nonstenotic vessel +29.9% above control value before NTG. Subsequent mechanic dilation of stenosis by 108.3% resulted in no further significant increase of poststenotic diameters (+42.6% above control value), while diameters of reference vessels decreased (+9.7% above control value). In order to demonstrate whether this behaviour was due to a loss of NTG activity at the end of TCA, we attempted to reinduce vasodilation in another 10 patients (group II) by a second intracoronary bolus injection of 0.5 mg NTG. In these patients NTG injection before TCA resulted in an increase in poststenotic diameters as well as in reference vessels (21.2% and 14.0% respectively above control value). At the end of TCA an increase in the poststenotic diameter could be found to 22.1% above control value, while diameters of reference vessels had markedly decreased (4.1% above control value). The second injection of NTG resulted in an increase of poststenotic as well as reference segments (39.3% and 17.4% respectively above control value).(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:language |
ger
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0300-5860
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
75
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
19-26
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2938350-Angioplasty, Balloon,
pubmed-meshheading:2938350-Combined Modality Therapy,
pubmed-meshheading:2938350-Coronary Angiography,
pubmed-meshheading:2938350-Coronary Circulation,
pubmed-meshheading:2938350-Coronary Disease,
pubmed-meshheading:2938350-Female,
pubmed-meshheading:2938350-Humans,
pubmed-meshheading:2938350-Male,
pubmed-meshheading:2938350-Middle Aged,
pubmed-meshheading:2938350-Nitroglycerin,
pubmed-meshheading:2938350-Vascular Resistance
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pubmed:year |
1986
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pubmed:articleTitle |
[Effects of intracoronary nitroglycerin administration on poststenotic vascular diameter before and following transluminal coronary angioplasty].
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pubmed:publicationType |
Journal Article,
English Abstract
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