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Related Experiment Videos

VDD pacing in persistent left superior vena cava

A M Okreglicki1, R N Millar

  • 1Department of Medicine, University of Cape Town, South Africa.

Pacing and Clinical Electrophysiology : PACE
|June 20, 1998
PubMed
Summary
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Persistent left superior vena cava (PLSVC) is common, but its association with absent right SVC is rare. A VDD pacing system was successfully implanted via PLSVC in a patient with complete heart block.

Area of Science:

  • Cardiology
  • Congenital Heart Disease
  • Cardiac Electrophysiology

Background:

  • Persistent left superior vena cava (PLSVC) is the most common anomaly of the great cardiac veins.
  • Absence of the right superior vena cava (RSVC) with normal visceral situs is an exceedingly rare congenital condition.

Observation:

  • A patient presented with complete heart block.
  • The patient had a rare congenital anomaly: persistent left superior vena cava (PLSVC) with absence of the right superior vena cava and normal visceral situs.

Findings:

  • Permanent pacing was successfully achieved using a single lead VDD system.
  • The VDD system utilized the persistent left superior vena cava (PLSVC) for lead placement.
  • Atrial sensing was effectively obtained from the coronary sinus.

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Implications:

  • This case demonstrates the feasibility of VDD pacing system implantation via PLSVC in patients with absent RSVC.
  • It highlights an alternative approach for cardiac pacing in complex congenital venous anomalies.
  • Successful pacing via PLSVC offers a viable solution for managing complete heart block in such rare anatomical variations.