METHOD FOR MYOCARDIAL REVASCULARIZATION IN CASE OF CORONARY ARTERY DISEASE Russian patent published in 2017 - IPC A61N5/67 A61K35/545 

FIELD: medicine.

SUBSTANCE: combined effect on the myocardium is provided, including laser treatment and intramyocardial administration of autologous bone marrow stem cells (ABMSC). Through channels in the left ventricular wall in the myocardial ischemia area or areas are performed, with diameter of 0.3-1.0 mm and frequency of one channel per 1 cm² of the left ventricle wall. Each channel is perpendicular to the left ventricle outer wall surface in the channel forming area. Channels are formed using the impact of CO₂ laser, with a power of 800-1000 W and pulse duration of 20-50 ms. The pulse duration is chosen sufficient to form a channel by one pulse within the refractory period of the cardiac cycle. Then, 200 l of a solution containing 8.3 million of ABMSC is administered around each channel along its entire length using one injection. The needle is directed in the avascular zone at a distance of 1-2 mm from the outer channel wall. ABMSC is introduced when extracting the needle.

EFFECT: reduction of intervention trauma, while maintaining its efficiency, reducing the volume of fluid injected with ABMSC, as well as application of one pulse to form a through channel in the myocardium, prevention of intraoperative complications and induced arrhythmia due to the laser pulse impact by forming channels in the myocardium within the refractory period of the cardiac cycle.

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