Successful treatment of ischemic dysfunction of the sinus node with thrombolytic therapy: a case report

Area of Science:

• Cardiology
• Interventional Cardiology

Background:

• Percutaneous transluminal coronary angioplasty (PTCA) is a common procedure for treating coronary artery disease.
• Complications, though rare, can arise, including those affecting cardiac electrical function.

Observation:

• A case of ischemic dysfunction of the sinus node occurred following PTCA of the distal left circumflex artery.
• The dysfunction was attributed to occlusion of the sinus node artery.

Findings:

• Local thrombolytic therapy successfully re-established blood flow in the occluded sinus node artery.
• Sinus node function normalized within one week following reperfusion therapy.

Implications:

• Immediate reperfusion of an occluded nodal artery is feasible and can reverse ischemic dysfunction.
• Temporary sinus node dysfunction following angioplasty is generally transient, necessitating a delay in permanent pacemaker implantation for at least one week.