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Sinus Node Dysfunction (Sick Sinus Syndrome)

Anila Khaliq, MD, Godly Alcindor, Master of Science in Biomedical Sciences, Doctor of Osteopathic Medicine and Shiv Patel, Doctor of Osteopathic Medicine Reviewed 04/2024
 


BASICS

Sick sinus syndrome, also known as sinus node dysfunction (SND), is a disorder of the sinoatrial node caused by impaired pacemaker function and impulse transmission producing a constellation of...

DIAGNOSIS

The diagnosis of sinus node dysfunction can only be made when the symptoms directly correlate with the arrhythmias observed on cardiac monitoring. 

HISTORY

  • Patients with sick sinus syndrome ar...

TREATMENT

  • Treatment for sick sinus syndrome revolves around symptom management and correcting reversible extrinsic factors.

  • For asymptomatic patients, treatment is not required.

  • If the patient is receiv...

ONGOING CARE

FOLLOW-UP RECOMMENDATIONS

Patient Monitoring

  • Frequent monitoring might be needed until a cause is identified. 

  • If on anticoagulation, bleeding risks and benefits should be revisited frequent...

REFERENCES

1
Nielsen JC, Thomsen PE, Højberg S, et al.; DANPACE Investigators. A comparison of single-lead atrial pacing with dual-chamber pacing in sick sinus syndrome. Eur Heart J. 2011;32(6):686–96....

CODES

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