Clinical laser recanalization of coronary obstruction. Angioscopic and angiographic documentation.

Coronary angioscopy was used to assess the configuration and cross-sectional luminal area of atherosclerotic obstruction prior to and following laser recanalization in a patient at the time of bypass surgery. Angioscopy served as a useful adjunct to angiography by providing documentation of immediate improvement and patency of the laser-recanalized site.