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.
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References in periodicals archive ?
Atrial contractile remodeling, that can be defined as the loss of atrial contractility, leads to a reduced atrial transport function after cardioversion (CV) of AF, Reduced atrial contractility may also enhance atrial dilatation and contribute to the persistence of AF.