Introduction:

Among the different complications that arise in the immediate postoperative period, the low cardiac output presents higher associated morbidity and mortality, with an incidence of up to 45.0 %.

Objective:

To determine the factors related to the postoperative emergence of the low cardiac output in patients with cardiovascular surgical treatment and extracorporeal circulation, according to demographic, clinical and echocardiographic variables.

Methods:

An analytic, cases and controls investigation was carried out, which included patients that received heart surgical treatment in the Cardiology and Cardiovascular Surgery Service of Saturnino Lora Teaching Clinical Surgical Provincial Hospital in Santiago de Cuba, from January to December, 2019. Each study group was conformed by 43 members, for which was considered the presence (cases) or not (controls) of the low cardiac output syndrome.

Results:

In the series there was a prevalence of the patients under 65 years in both study groups (51.2 and 73.5 % for cases and controls, respectively), as well as the male sex (60.9 %); in a same way, the emergency surgical intervention was the most frequent (80.2 %). The atrial fibrillation and the systolic function of the right ventricle presented high statistical significance (p <0.05).

Conclusions:

Some clinical and echocardiographic elements (age, atrial fibrillation, systolic function of the left and right ventricles, as well as emergency surgical intervention) were associated in an independent way with the emergence of the low cardiac output.

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