Sustained Tachycardia in a Cardiac Resynchronization Therapy Recipient: What Is the Mechanism of Tachycardia?


  • Financial Support: Dr. Shahnaz Jamil-Copley is funded by a British Heart Foundation Grant (PG/10/037/28347).

  • Conflict of interest for all authors: None.

Address for reprints: Pipin Kojodjojo, M.R.C.P., Ph.D., Waller Department of Cardiology, St. Mary's Hospital, Praed Street, London W2 1NY, UK. Fax: 44 207 886 6200; e-mail: