atrial transport function

a·tri·al trans·port func·tion

the role of the atria in filling and stretching the ventricles by their presystolic contraction, without which the force of ventricular contraction (and hence the cardiac output) may significantly decrease.
References in periodicals archive ?
Problems associated with AF are threefold: rapid ventricular response, resulting in decreased cardiac output and occasionally tachycardia-mediated cardiomyopathy; loss of the atrial transport function, which variably may result in decreased cardiac output; and stasis with clot formation and thromboembolism.
In patients with a documented sinus rhythm (SR) at follow-up, the presence of atrial transport function was assessed with transthoracic echocardiography.
In patients with documented SR during follow-up visits, atrial transport function was 76.