Sick sinus syndrome definitions

Sick sinus syndrome

Sick sinus syndrome (SSS), also called sinus node dysfunction (SND), is an umbrella term for a group of abnormal heart rhythms (arrhythmias) presumably caused by a malfunction of the sinus node, the heart`s primary pacemaker. Bradycardia-tachycardia syndrome is a variant of sick sinus syndrome in which slow arrhythmias and fast arrhythmias altern....
Found on http://en.wikipedia.org/wiki/Sick_sinus_syndrome

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sick sinus syndrome

(from the article `cardiovascular disease`) ...through a specialized conducting system. The electrical activity causes contraction of the heart muscle, which results in a detectable pulse at ...
Found on http://www.britannica.com/eb/a-z/s/90

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sick sinus syndrome

<syndrome> A disorder consisting of abnormalities of supraventricular impulse generation and conduction which produce a wide variety of intermittent rapid and slow supraventricular arrhythmias. ... Common symptoms include palpitations, faintness and fainting. ... Diagnosis is generally by 24 hour cardiac monitoring. A permanent pacemaker is i...
Found on http://www.encyclo.co.uk/local/20973

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sick sinus syndrome

a complex cardiac arrhythmia usually associated with syncope and manifested as severe sinus bradycardia alone, sinus bradycardia alternating with tachycardia (see bradycardia-tachycardia syndrome), or sinus bradycardia with atrioventricular block. It is a combination of sinoatrial node dysfunction and failure of an escape pacemaker.
Found on http://www.encyclo.co.uk/local/21001

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sick sinus syndrome

Type: Term Definitions: 1. symptoms ranging from dizziness to unconsciousness due to chaotic or absent atrial activity often with bradycardia alternating with tachycardia, recurring ectopic beats including escape beats, runs of supraventricular and ventricular arrhythmias, sinus arrest, and sinoatrial block.
Found on http://www.medilexicon.com/medicaldictionary.php?t=88204

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Sick sinus syndrome

Sick sinus syndrome: Symptoms of dizziness, confusion, fainting, and heart failure due to a problem with the sinus node of the heart, which acts as the body's natural pacemaker. If the sinus node is not functioning normally, it is reflected in an abnormally slow heart rate (bradycardia). This can cause poor pumping by the heart, which can impair th...
Found on http://www.medterms.com/script/main/art.asp?articlekey=7464

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Sick sinus syndrome

abnormal functioning of the structure that regulates the heartbeat, causing episodes of abnormal heart rhythm
Found on https://www.encyclo.co.uk/local/20875

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Sick sinus syndrome

The failure of the sinus node to regulate the heart’s rhythm.
Found on https://www.texasheart.org/heart-health/heart-information-center/topics/a-z

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