Source:http://linkedlifedata.com/resource/pubmed/id/17670653
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
5
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| pubmed:dateCreated |
2007-8-2
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| pubmed:abstractText |
Minimally invasive surgery for coronary revascularization using the left internal thoracic artery (ITA) has gained increasing interest. For control of graft function the established transcutaneous color-Doppler echocardiography in combination with a stress-test was performed to test the ability of this novel technique. Twenty-one patients having received a single ITA-graft were evaluated early postoperatively at rest and during isometric stress test with a handgrip exercise. Compared to the right internal thoracic artery, the mainly systolic flow is changed to a wide diastolic component when the left ITA is anastomosed to the coronary artery. The peak systolic/peak diastolic velocity ratio changed from 4.5+/-1.9 to 1.4+/-0.47 (P<0.0001). During stress reaction with the isometric handgrip maneuver the grafted ITA showed a significant increase of the mean diastolic flow (29.1+/-13.3 to 44.3+/-14.7 cm/s, P<0.0001) and total blood flow (124.8+/-55.4 ml/min to 176.6+/-71.7 ml/min), which may demonstrate an efficient bypass function. We conclude, that the noninvasive measurement of ITA-graft function with Doppler-ultrasound may be a clinically useful method to assess the functional status after minimally invasive coronary artery bypass grafting. In combination with the hand-grip test it represents a valid new technique with the potential to estimate graft patency.
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| pubmed:commentsCorrections | |
| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Oct
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| pubmed:issn |
1569-9285
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| pubmed:author | |
| pubmed:issnType |
Electronic
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| pubmed:volume |
5
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
584-8
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| pubmed:year |
2006
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| pubmed:articleTitle |
Stress Doppler echocardiography of the internal thoracic artery--a new non-invasive approach for functional assessment after minimally invasive coronary bypass grafting.
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| pubmed:affiliation |
Faculty of Medicine, University of Witten-Herdecke, Department of Cardiology and Internal Medicine, General Hospital Solingen, Germany. RogerMarx@t-online.de
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| pubmed:publicationType |
Journal Article
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