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PubMed1990

[Percutaneous transcatheter assisted circulation].

A new system of percutaneous transcatheter auxiliary circulation of blood was developed and approved in the period between 1988 and 1989. The system includes a portable centrifugal pump and special catheters with a thin wall and diameter measuring 2-4 mm. Experiments (25) on a vascular channel model showed that the system provides for a 3.5 l/min performance and does not cause damage to the formed elements of the blood in operating for 240 minutes. This type of auxiliary circulation was used in 16 experiments on mongrel dogs with acute disturbance of coronary circulation (occlusion of the anterior interventricular branch of the left coronary artery (AIVB) with a balloon catheter for 60 minutes). The viability of the myocardium in the zone of the occluded AIVB was maintained and its function completely restored in the postischemic period in all cases. In the control group (5 experiments) the zone of the infarction accounted for 40 to 60% of the mass of the myocardium supplied by the AIVB. The use of the method is very promising in acute disorders of coronary circulation.

Animals↗