Successful implantation of a left ventricular lead in an anomalous coronary sinus

Area of Science:

• Cardiology
• Cardiac Electrophysiology
• Anatomical Variations

Background:

• Cardiac resynchronization therapy (CRT) is a treatment for heart failure.
• Successful CRT requires implantation of a left ventricular (LV) lead, typically via the coronary sinus (CS).
• Anatomical variations of the CS can complicate CRT procedures.

Purpose of the Study:

• To report a case of successful LV lead implantation in a patient with an anomalous coronary sinus.
• To highlight the challenges and potential solutions for CRT in patients with CS anomalies.

Main Methods:

• A 56-year-old male patient was referred for CRT implantation.
• Initial attempts at CS catheterization failed due to an anomalous anatomy.
• A modified approach utilizing a large posterior-lateral branch of the CS was employed.

Main Results:

• The anomalous coronary sinus anatomy presented a significant challenge for standard LV lead placement.
• Successful cannulation and LV lead implantation were achieved by targeting a specific CS branch.
• The patient's CRT procedure was ultimately successful despite the anatomical variation.

Conclusions:

• Anomalous coronary sinus anatomy is a critical consideration during CRT planning and execution.
• Modified techniques and careful anatomical assessment are essential for overcoming CS anomalies.
• Successful CRT is achievable even with complex coronary sinus variations, improving patient outcomes.