[Experimental and clinical studies of using Nd: YAG laser via domestic metal cap and sapphire tip delivery systems].
Sixteen segments of normal human cadaver aorta were irradiated by Nd: YAG laser beam delivered via domestic metal cap and sapphire tip fiber systems. Results revealed that the adherence to target tissue and tissue damage were more apparent with metal caps than those with sapphire tips. Furthermore, the latter had smoother edges of ablation crater less carbonization layers and smaller thermal necrotic zones. The delivery systems were used to perform laser angioplasty in 2 iliac and 5 coronary atherosclerotic arteries and all achieved immediate recanalization.
Renji Hospital, Shanghai Second Medical University.
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D000368:Aged; D016342:Angioplasty, Laser / Q000295:instrumentation*; D001011:Aorta / Q000528:radiation effects; D001157:Arterial Occlusive Diseases / Q000601:surgery; D003324:Coronary Artery Disease / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged