[Morphological validation of possibility of transmyocardial laser revascularization].

Serial section of 3 canine hearts were made 2 hours, 8 and 21 days after transmyocardial laser vascularization (TMLV). Morphological evidence show it possible to develop open transmyocardial channels within 21 days after TMLV if they are connected to their intrinsic myocardial vessels.