[Artificial circulation in microsurgery of the coronary arteries]

Results of 69 aortocoronary bypass operations with the use of microsurgery equipment were analysed. Perfusion was performed under conditions of constant flow, which made it possible to avoid transmissive pulsation, making difficulties for creating microanastomoses. One venous double opening canule was used with no drainage of the left ventricule, which made cannulation easier and created optimal technical conditions for the surgeon. Duration of extracorporeal blood circulation and frequency of intraoperational complications (cardiac failure, myocardial infarction) depended on the operational methods: initial creation of proximal anastomoses resulted in decreased duration of the perfusion, improved protection of myocardium and lower number of complications.