Idiopathic mitral annular pvcs with multiple breakouts and preferential conduction unmasked by radiofrequency catheter ablation

Academic Article


  • A 39-year-old man with idiopathic monomorphic premature ventricular contractions (PVCs), exhibiting a right bundle branch block and inferior axis QRS morphology, underwent electrophysiological testing. After a radiofrequency (RF) application to the anterior mitral annulus (MA) eliminated the spontaneous PVC morphology, a second PVC morphology occurred. Pacing from the first ablation site exhibited an excellent match to the second PVCs with a long stimulus to QRS interval. An RF application delivered near the first lesion eliminated all PVCs. The MA PVCs in this case exhibited a single origin with multiple breakouts and preferential conduction that were unmasked by RF ablation. (PACE 2012; 35:e112-e115) © 2012 Wiley Periodicals, Inc.
  • Published In

    Digital Object Identifier (doi)

    Author List

  • Yamada T; Doppalapudi H; McElderry HT; Kay GN
  • Volume

  • 35
  • Issue

  • 5