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Related Experiment Video

Updated: Oct 26, 2025

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China

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Permanent Sinus Node Arrest Complicating Coronary Angioplasty.

Maria Stratinaki¹, Eftihia Sbarouni²

¹Department of Cardiology, Venizeleio General Hospital of Heraklion, Heraklion, Crete, Greece.

JACC. Case Reports

|July 28, 2021

Summary

Sinus node artery occlusion after percutaneous coronary intervention is rare and typically resolves. However, one case required a permanent pacemaker due to unresolved obstruction.

Keywords:

LCx, left circumflex artery PCI, percutaneous coronary intervention RCA, right coronary artery SNA, sinus node artery bradycardia coronary angioplasty pacemaker sinus node arrest

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Post-Myocardial Infarction Heart Failure in Closed-chest Coronary Occlusion/Reperfusion Model in Göttingen Minipigs and Landrace Pigs

Published on: April 17, 2021

Area of Science:

Cardiology
Interventional Cardiology
Vascular Medicine

Background:

Percutaneous coronary intervention (PCI) is a common procedure for treating coronary artery disease.
Sinus node artery (SNA) occlusion is a rare but recognized complication of PCI.
SNA occlusion often presents with transient sinus arrest and usually has a favorable prognosis.

Observation:

A case of persistent sinus node artery obstruction following PCI of the mid-right coronary artery is presented.
The patient experienced unresolved SNA occlusion, leading to significant cardiac events.

Findings:

Unlike typical presentations, the sinus node artery obstruction in this case did not resolve spontaneously.
The persistent occlusion necessitated medical intervention beyond the initial PCI procedure.

Implications:

This case highlights the potential for severe, unresolved complications from SNA occlusion.
Permanent pacemaker implantation may be required in rare instances of unresolved SNA obstruction.
Clinicians should consider the possibility of persistent SNA occlusion in patients with bradyarrhythmias post-PCI.