Coronary Sinus Rupture Repair: Patency Is Important

Area of Science:

• Cardiovascular Surgery
• Cardiac Anesthesia
• Thoracic Surgery

Background:

• Retrograde cardioplegia delivery via a coronary sinus catheter is a common technique.
• Coronary sinus injury during catheter placement or removal is a rare but potential complication.
• Understanding the consequences of coronary sinus compromise is crucial for patient outcomes.

Observation:

• A patient sustained coronary sinus injury during retrograde cardioplegia catheterization.
• The injury led to compromised coronary sinus patency.
• This resulted in acute global cardiac dysfunction immediately after cardiopulmonary bypass.

Findings:

• Acute coronary sinus occlusion following injury and repair was identified as the cause of cardiac dysfunction.
• Surgical patch repair of the coronary sinus restored its patency.
• Cardiac function significantly improved after the repair, confirming the causal link.

Implications:

• This case highlights that acute coronary sinus occlusion, even if temporary, may not be tolerated in certain human patients.
• It underscores the importance of meticulous technique during coronary sinus catheter procedures.
• Prompt diagnosis and surgical intervention are critical for managing such complications and restoring cardiac function.