Laser balloon angioplasty. A new approach to abrupt coronary ... | 合法醫療器材資訊網
由RDJenkins著作·1990·被引用36次—Laserballoonangioplasty(LBA)isatechniquedesignedtopotentiallyalleviatetheseproblemsbysealingarterialdissections,smoothingtheluminalsurfaces, ...
Abrupt coronary occlusion and long-term restenosis continue to be the major problems associated with percutaneous transluminal coronary angioplasty (PTCA). Laser balloon angioplasty (LBA) is a technique designed to potentially alleviate these problems by sealing arterial dissections, smoothing the luminal surfaces, dehydrating thrombi, and reducing the elastic properties that tend to recoil the stretched artery to its original state. During LBA, laser energy is delivered circumferentially by a 100-microns optical fiber that terminates in a central diffusing tip within an angioplasty balloon. LBA is performed for 20 seconds during the final inflation of the angioplasty balloon. Achieved with decremental ramped laser dosimetry, Nd:YAG laser energy has been shown to be effective in welding experimental arterial dissections over a therapeutic temperature range of 95 degrees-120 degrees C. LBA treatment of rabbit iliac a...
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