| Autor: |
Reuthebuch, O., Berwing, K., Roth, M., Klövekorn, W.-P., Bauer, E.P. |
| Předmět: |
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| Zdroj: |
European Journal of Echocardiography; 2002, Vol. 3 Issue 1, p24-31, 8p |
| Abstrakt: |
Aims: Apart from casuistic autopsy results there is no long-term evidence for channel perfusion after transmyocardial laser revascularization in humans.Methods and Results: Fifteen consecutive patients aged 63±17 years were investigated 71±15 days after coronary artery bypass surgery and/or transmyocardial revascularization with 13–37 (20±5) channels (CO2 laser, 40 J/pulse). Echocardiography was performed after injection of 6 ml echo contrast medium into left ventricular cavity and after injection of 3 ml contrast medium into the left main coronary artery. In five patients with additional bypass surgery to the same region, we also injected 3 ml contrast medium into bypass graft. We could prove in 10 of 15 patients (67%) one or two laser channels in the apical left ventricular myocardium. Channels were perfused exclusively during systole. During following heart cycles myocardium was opacified up to a mean width of 1·4±0·4 cm, a mean depth of 0·71±0·1 cm, and a mean area of 1·0±0·6 cm2. Contrast medium was washed out via coronary venous system in 9±8 systoles.Conclusion: This is the first clinical evidence of long-term laser-channel patency in humans showing perfused myocardium via left ventricular cavity.Copyright 2002 The European Society of Cardiology. Published by Elsevier Science Ltd. All rights reserved. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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