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Pacemaker lead overcoiling: the overcoil–retraction phenomenon
  1. Simon Modi,
  2. Diane Barker,
  3. Archana Rao
  1. Department of Electrophysiology and Pacing, The Liverpool Heart and Chest Hospital, Liverpool, UK
  1. Correspondence to Simon Modi, Liverpool Heart and Chest Hospital, Thomas Drive, Liverpool L14 3PE, UK; simodi{at}

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The image (figure 1) shows the dangers of lead overcoiling. In the first post-implant image, a biventricular defibrillator is present with a St. Jude Quicksite left ventricular (LV) lead (SJM, Saint Paul, Minnesota, USA) positioned in a middle cardiac vein. On day 1 post-implant, loss of LV capture was noted. Repeat x-ray shows that the LV lead recoiled to the innominate vein (solid black …

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  • Competing interests None.

  • Provenance and peer review Not commissioned; internally peer reviewed.