Atrial Contraction

Views Updated: Dec 15, 2025

Abbreviation

Pronunciation

/ˈeɪtriəl kənˈtrækʃn̩/

The presence of an S4 implies effective atrial contraction; it is never heard in atrial fibrillation.
Objective : To assess atrial and ventricular electromechanical coupling and atrial contraction time by quantitative tissue Doppler imaging.
Conclusion Left atrial contraction was increased in patients with hyperthyroidism.
The ratio of peak velocity at atrial contraction ( A ) and rapid filling ( E ) declined.
Objective To evaluate the changes of right, left ventricular function and left atrial contraction function after transcatheter closure of atrial septal defect ( ASD ) and during a short term follow up.

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