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Uptodate Reference Title
Single lead electrocardiogram (ECG) showing sick sinus syndrome (SSS) with ectopic atrial and junctional beats
Single lead electrocardiogram (ECG) showing sick sinus syndrome (SSS) with ectopic atrial and junctional beats
Example of sick sinus syndrome (SSS). In this example, sinus rhythm abruptly pauses, followed by two ectopic atrial beats, a junctional escape beat, and resumption of sinus activity.