Argon laser recanalization of three totally occluded human right coronary arteries.

We report the successful recanalization, in vivo, of three totally occluded human right coronary arteries with an argon laser catheter during coronary artery bypass surgery. The laser catheter and technique of laser recanalization are described. At 15 days postoperatively, two of the laser-treated arteries were reoccluded angiographically. The third patient refused postoperative angiography.