Sinus Node Dysfunction, Atrial Arrhythmias, and the Sinus Node Microcirculation.

A patient with sinus node dysfunction (SND) developed atrial arrhythmias that were abolished after avoidance of nonsteroidal anti-inflammatory medication and by the institution of a deliberate, modest increase in blood pressure, suggesting that there was a vascular component to the rhythm disturbance. Published anatomical evidence for a unique sinus node microcirculation substantiates the premise that SND may be sensitive to arterial flow. Because physicians have been unaware of the presence of a unique sinus node microcirculation, recognition of its presence may alter the approach to treatment of patients with SND and atrial arrhythmias, particularly in the elderly and those with diabetes. © The Author(s) 2022.

Citation

Susan K Fellner. Sinus Node Dysfunction, Atrial Arrhythmias, and the Sinus Node Microcirculation. Clinical medicine insights. Case reports. 2022;15:11795476221091409

PMID: 35418796

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