sinoatrial


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Related to sinoatrial: sinoatrial block

si·no·a·tri·al

 (sī′nō-ā′trē-əl)
adj.
Of or relating to the sinoatrial node: a sinoatrial heart block.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sinoatrial

(ˌsaɪnəʊˈeɪtrɪəl)
adj
(Anatomy) relating to specific tissue in the wall of the right atrium of the heart that acts as a pacemaker
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Translations

si·no·a·tri·al

, sinoauricular node
n. nódulo sinusal o senoauricular, localizado en la unión de la vena cava y la aurícula derecha, y que se considera el punto de origen de los impulsos que estimulan los latidos del corazón;
a. sinoatrial, rel. a la región del seno auricular.
English-Spanish Medical Dictionary © Farlex 2012

sinoatrial

adj sinoauricular
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
It maintains synchrony of atrial and ventricular contraction and dominance of sinoatrial (SA) node as opposed to asynchronous ventricular stimulation.
The chemicals altered the beating of the sinoatrial node, sometimes called the heart's natural pacemaker.
Many times, bradycardia is caused by a problem with the heart's sinoatrial (SA) node.
This is related to the influence of autonomic nervous system on the sinoatrial (SA) node.
Is the resting bradycardia in athletes the result of remodeling of the sinoatrial node rather than high vagal tone?.
Some related reports pointed out that calcium-channel blockers are associated with reduced aortic expansion and improved survival in AAD.[18],[19] Calcium antagonists generally blocked the slow calcium channels, decreasing the influx of extracellular calcium,[20] which resulted in suppression of the sinoatrial and atrioventricular nodes,[21] vascular dilation with decreased blood pressure, and reduced cardiac contractility.
Contraction band necrosis can cause sinoatrial block, first degree AV nodal block, second degree heart block, right bundle branch block and left bundle branch block.
It has been shown that the modulation of sinoatrial node activity via respiratory frequency and volume is the principal mechanism influencing the fast periodicities in the HF range of HRV (17,22).
Heart rate variability (HRV), which controls cardiac function via efferent fibers to the vasculature of the heart as well as the sinoatrial node and myocardium, is an important marker for autonomic dysregulation (4, 6, 7).
The sinoatrial nodule generates electrical signals, which depolarize and repolarize the synaptic membranes, which leads to rhythmicity of the heart (2), also known as heart rate variability (HRV) (3).
The most common cause of cardiac syncope is arrhythmias such as severe sinus bradycardia (<40/min), sinoatrial block or sinus pause >3 sec, AV complete block, intermittent AV block and continuous ventricular tachycardia.
The pacemaker current channel (If) is a hyperpolarization activated cyclic nucleotide gated channel, and Ivabradine is the first sinoatrial node If current inhibitor which is unusual from the conventional heart rate reducing agents.