R. Yarosh, L. Shestakova, M. Bushkevich, N. Petrovich
Purpose. To study the incidence and to determine predictors of post cardiotomy low cardiac output syndrome after open-heart surgery.
Methods. A retrospective, observational case-control study was conducted at the Republican Scientific and Practical Center of Cardiology for the period 2015–2017. The study included 1, 540 patients who underwent open-heart surgery. Intraoperatively and in early postoperative period, 46 patients developed postcardiotomy low cardiac output syndrome (PCLCOS) refractory to drug therapy, followed by mechanical circulatory support (the study group), the comparison group consisted of 1, 494 patients.
Results. The incidence of PCLCOS was 2.98%. The predictors of PCLCOS included the following: reoperation OR = 3.65 (95% CI 1.40–9.51), myocardial infarction (30 days) before operation OR = 7.20 (95% CI 2.25–23.01), heart failure NYHA class III/IV OR = 2.38 (95% CI 1.30–4.37), and preoperative local contractility index more than 1.81, OR = 2.92 (95% CI 1.50–5.68).
Conclusion. Postcardiotomy low cardiac output syndrome is still a big issue in cardiac surgery. Despite modern methods of myocardial protection and mechanical circulatory support (MCS), hospital mortality remains extremely high, up to 80%. Prognosis based on predictive models will allow timely selection of the required type of MCS, reducing the incidence of multiple organ failure, and, as a result, adverse outcomes of surgical treatment.
keywords: cardiac surgery, mechanical circulatory support, cardiopulmonary bypass, postcardiotomy low cardiac output syndrome.
for references: R. Yarosh, L. Shestakova, M. Bushkevich, N. Petrovich. Incidence and risk factors for low cardiac output syndrome after open heart surgery. Neotlozhnaya kardiologiya i kardiovaskulyarnye riski [Emergency cardiology and cardiovascular risks], 2023, vol. 7, no. 1, pp. 1852–1858.
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