Sinus node dysfunction
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Sinus node dysfunction (SND), also known as sick sinus syndrome (SSS), is a group of abnormal heart rhythms (arrhythmias) usually caused by a malfunction of the sinus node, the heart's primary pacemaker.[1][2] Tachycardia-bradycardia syndrome is a variant of sick sinus syndrome in which the arrhythmia alternates between fast and slow heart rates.[3]
Quick Facts Other names, Complications ...
Sinus node dysfunction | |
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Other names | Sick sinus syndrome or sinoatrial node disease |
Telemetry strip of a 44-year-old female with asymptomatic sinus pause found while admitted for mildly symptomatic COVID-19 pneumonia. | |
Complications | Tachycardia-bradycardia syndrome |
Diagnostic method | electrocardiogram |
Treatment | Pacemaker implantation |
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