METHOD OF ARTIFICIAL BLOOD CIRCULATION IN RECONSTRUCTIVE OPERATION ON AORTIC ARCH Russian patent published in 2020 - IPC A61B17/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to cardiovascular surgery, medical equipment. System comprising interconnected physiological and perfusion units is used. First, artificial blood circulation (ABC) is performed in parallel to antegrade pharmaco-cholera cardioplegia. Circulation reservoir is filled with cardioplegic solution, main line perfusion ports are connected to left coronary and right coronary arteries, and connection between physiological and perfusion units is blocked. That is followed by circulatory arrest and selective bilateral antegrade perfusion of the brain through a left common carotid artery (lCCA) and a brachiocephalic trunk (BCT), for which the arterial line is closed, a connection is opened between the physiological and perfusion units, the cardioplegic solution is displaced with the perfusate of the physiological unit, the circulation reservoir is disconnected, ports of main lines for perfusion of the main vessel are connected to the lCCA and BCT of the patient. Brain perfusion is performed at temperature 27–28 °C with separate delivery of oxygenated blood by lCCA and BCT, maintaining pressure of 50–70 mm Hg and cerebral perfusion rate of at least 250 ml/min separately along the main vessel perfusion lines. After the circulatory arrest is completed, the ABC is continued while the patient is warmed, and the cerebrum perfusion is continued at 27–28 °C, maintaining said perfusion parameters.

EFFECT: method enables performing ABC with cardioplegia, perfusion of cerebrum using one universal system, provides prevention of neurological complications.

1 cl, 4 dwg, 1 ex, 1 tbl