Laser tissue interaction in direct myocardial revascularization.
Semin Interv Cardiol
; 5(2): 63-70, 2000 Jun.
Article
em En
| MEDLINE
| ID: mdl-10867762
ABSTRACT
This investigation examines the various laser choices used for transmyocardial laser revascularization (TMLR) with emphasis on the laser-tissue interaction. A series of in vivo (porcine model, n=27) and in vitro experiments were performed to study the effects of CO(2), holmiumYAG, and XeCl excimer lasers on the histological outcome of TMR channels. Computerized histopathological analysis has revealed that the CO(2) and holmiumYAG lasers produce substantial unpredictable thermal damage and differ predominantly in the amount of the mechanical injury or tissue shredding. In comparison, the excimer laser appears to produce the most uniform tissue ablation with the least thermal and shockwave damage.
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Base de dados:
MEDLINE
Assunto principal:
Terapia a Laser
/
Revascularização Miocárdica
/
Miocárdio
Limite:
Animals
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article