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Successful placement of a deflectable decapolar catheter via the right femoral vein approach in a patient with coronary sinus ostial atresia and persistent left superior vena cava
  1. Choon Ta Ng1,
  2. Jason See2,
  3. Chee Wan Lee3,
  4. Chi-Keong Ching1
  1. 1Department of Cardiology, National Heart Centre Singapore, Singapore
  2. 2Department of Cardiology, Changi General Hospital, Singapore
  3. 3Department of Cardiology, Khoo Teck Pat Hospital, Singapore
  1. Correspondence to Dr Chi-Keong Ching, Cardiac Pacing and Electrophysiology, Department of Cardiology, National Heart Centre Singapore, 5 Hospital Drive, 169609 Singapore; ching.chi.keong{at}


The authors illustrate the successful ablation of a left-sided posterior accessory pathway via a retrograde aortic approach in a patient with coronary ostial atresia associated with persistent left-sided superior vena cava. This is an extremely rare anomaly which should be considered by cardiac electrophysiologists when there is difficulty cannulating the coronary sinus via the right atrial route. Awareness of this route obviates the need for additional venous access.


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