Assessment of Nd:YAG laser via metal cap and sapphire tip delivery system. An experimental and clinical investigation.
Sixteen segments of normal human aorta were irradiated by Nd:YAG laser beam delivered via domestically made metal cap and sapphire tip fibre systems. It was found that the metal tip fibre caused more target tissue damage and adhesion than the sapphire tip fibre. The sapphire tip fibre caused an ablation crater with a smoother edge, less carbonization layer and smaller thermal necrotic zone than the metal tip did. The metal cap and sapphire tip fibre were applied to 2 cases of iliac artery stenosis and 5 cases of coronary stenosis, all showing an immediate ablation.
Bao
S H
SH
Department of Cardiology, Renji Hospital, Shanghai Second Medical University.
Zheng
D S
DS
Zhang
S H
SH
Yu
G R
GR
Lu
H H
HH
Gai
B K
BK
D015906:Angioplasty, Balloon, Coronary; D017222:Angioplasty, Balloon, Laser-Assisted / Q000379:methods*; D003251:Constriction, Pathologic / Q000601:surgery / Q000628:therapy; D003327:Coronary Disease / Q000601:surgery / Q000628:therapy*; D005260:Female; D005336:Fiber Optic Technology; D006801:Humans; D007083:Iliac Artery; D008297:Male; D008875:Middle Aged