Abstract
AIM. Evaluation of the effectiveness of intraoperative ultrasound flowmetry and identification of differencesin blood flow characteristics by autoarterial shunts in patients with high surgical risk (EvroScore>6) whounderwent surgery in IC conditions and on a working heart.Material and methods. The analysis included 96 patients with high surgical risk who underwent CABG both inthe of on pump and on a working heart conditions. The average age of patients in groups 1 and 2 was 61.5±2.9and 62.4±3.0 years, respectively (p=0.5). All patients of both groups underwent intraoperative ultrasoundflowmetry.Results. The indicators of intraoperative flowmetry confirm the good functioning of autoarterial transplants:the average volume blood flow rate is more than 20 ml/min, the pulsation index is not higher than 5 units andthe diastolic filling is higher than 50%. Previously used methods do not allow us to estimate the speed of bloodflow, to give a quantitative, devoid of subjectivity, assessment of blood flow. Flowmetry is the most commonlyused method for assessing the quality of shunts and can detect 2-4% of shunts that require revision.
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