[The control and regulation of gas exchange in membrane oxygenators of the MOST-122 stationary type during open heart surgery].

A system of controlling the perfusion parameters and the efficacy of extracorporeal gas exchange is described. The system has been developed and employed for the control and regulation of gas exchange in the MOST-122 oxygenators manufactured in the USSR and based on selective composition membranes. The system allows an expeditious assessment of gas exchange disorders which may occur during AC and extracorporeal oxygenation as well as their high-accuracy correction, reaching optimal modes of ventilation.

[The healing of a large intestine anastomosis].

Three types of colonic anastomosis were experimentally studied on 19 mongrel dogs. Best results were obtained when using precise three-row sutures with the restoration of the intestinal mucosa which was confirmed by histological investigation of the zone of colonic anastomosis. Clinical observations during operation on the colon in 58 patients when using the two-row and precise sutures are in keeping with experimental findings and show advantages of the precision anastomosis.

[Blood heat exchangers for the artificial heart using a radioisotope power source].

A design of a vascular heat exchanger enabling it to establish in experiments with animals the degree of the possible specific-capacity thermal loads has been devised. The performance results may be taken account of in designing implantable appliances of assistive circulation and artificial heart.