23 June 1993 Angioscopic assessment of various percutaneous treatments for arteriosclerosis obliterance
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Proceedings Volume 1878, Diagnostic and Therapeutic Cardiovascular Interventions III; (1993) https://doi.org/10.1117/12.146566
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
Abstract
We have evaluated the angioscopic findings before and after various percutaneous techniques to treat 39 lesions in 32 cases of arteriosclerosis obliterans (ASO). We applied a laser (CL50: SLT, Japan), percutaneous transluminal angioplasty (PTA), and atherectomy -- either singly or in combination, with angioscopic luminal observation (angioscope: PF14L & PF18L Olympus, Japan) recorded before and after the treatments. In the case of a complete obstruction, we employed PTA as the first choice. We used a laser prior to PTA when the PTA guide-wire failed to penetrate the lumen. For eccentric and calcified lesions atherectomy was applied. A sufficient enlargement was obtained initially in 37 of the 39 lesions. The angioscopic observations after treatment revealed carbonization (3/5) and attachment of small thrombi (3/5) after using the laser, intimal rupture (3/8), dissection (2/8), flap formation (2/8), and attachment of small thrombi (4/8) after PTA, and attachment of small thrombi (9/19), flap formation (6/19), and dissection (2/19) after atherectomy. We established the efficacy of angioscopic assessment demonstrating beneficial clinical results. The angioscopic findings suggest that attachment of small thrombi may be responsible for a poor prognosis. Additional angioscopic observations with angiography are recommended for improved understanding of the luminal changes.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hiroyasu Kusaba, Kazuo Watanabe, Shohzo Shiraishi, Takashi Sato, Nobuhiko Koga, "Angioscopic assessment of various percutaneous treatments for arteriosclerosis obliterance", Proc. SPIE 1878, Diagnostic and Therapeutic Cardiovascular Interventions III, (23 June 1993); doi: 10.1117/12.146566; https://doi.org/10.1117/12.146566
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