atrial


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atrial

 [a´tre-al]
pertaining to an atrium.
atrial natriuretic factor (ANF) a hormone produced in the cardiac atrium; it inhibits renin secretion and thus the production of angiotensin, and stimulates aldosterone release. Its effect is increased excretion of water and sodium and a lowering of blood pressure, which reduces the workload of the heart.
atrial septal defect a congenital heart defect in which the ostium primum or ostium secundum, openings in the septum primum of the embryonic heart, fail to close completely after birth. When an opening remains between the atria, some of the oxygen-rich blood from the left atrium passes into the right atrium and travels back to the lungs without being first transported through the body.
 Atrial septal defect. The shunt is from left atrium to right atrium. From Betz et al., 1994.

a·tri·al

(ā'trē-ăl),
Relating to an atrium.

atrial

(ā′trē-əl)
adj.
1. Of or relating to an architectural atrium.
2. Of or relating to an anatomical atrium.

atrial

adjective Relating to an atrium, usually understood as the atrium of the heart.

atrial

adjective Relating to an atrium, see there, usually understood to be the atrium of the heart.

a·tri·al

(ā'trē-ăl)
Relating to an atrium.

Atrial

Having to do with the upper chambers of the heart.
References in periodicals archive ?
Over the last few decades, the number of people living with atrial fibrillation around the world has grown exponentially.
Therefore, how to maintain sinus rhythm effectively after valve replacement, prevent recurrence of atrial fibrillation, avoid complications such as stroke and heart failure, and effectively improve the quality of life of patients have become important problems in cardio-thoracic surgery.
Brinavess (vernakalant HCl, IV) is an antiarrhythmic drug that acts preferentially in the atria by prolonging atrial refractoriness and slowing impulse conduction in a rate-dependent fashion.
Atrial Fibrillation (AFib or AF) is a supraventricular tachyarrhythmia with uncoordinated atrial activation resulting in ineffective atrial contraction and if left untreated, structural and/or electrophysiological atrial tissue abnormalities.
Intraoperatively, multiple calcified thrombi were seen adherent to the trabeculated portion of the right atrial wall (Figure 2).
The left atrial disc was opened first and whole assembly pulled toward the atrial septum and then right atrial disc deployed.
Efficacy and safety of left atrial appendage closure versus medical treatment in atrial fibrillation: a network meta-analysis from randomised trials.
Researchers at Aarhus University also found that medication was not responsible for the high frequency of atrial fibrillation in depressed people.
More than 33 million people worldwide suffer from atrial fibrillation, and the prevalence is rising.
St Michael's Hospital staff cardiac electrophysiologist and University of Toronto cardiology division department director Dr Paul Dorian, said, 'Brinavess offers an important safe and effective option for the treatment of recent onset atrial fibrillation.
With atrial fibrillation, a form of arrhythmia, the heart's normal rhythm is out of sync.