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Abdominal skeletal muscle twitching due to current leak from a pacemaker extension connector box
  1. Ajay Suri1,
  2. Abdul Malik1,
  3. Markus Reinthaler1,
  4. Vanessa Cobb1,
  5. Y Ziabari2,
  6. Syed Y Ahsan,
  7. Vanessa Cobb1,
  8. Martin Lowe,
  9. Fiona Walker1
  1. 1Department of Cardiology, SpR The Heart Hospital UCLH, London, UK
  2. 2Department of Anaesthetic, SpR The Heart Hospital UCLH, London, UK
  1. Correspondence to Dr Ajay Suri, The Heart Hospital, 16-18 Westmoreland Street, London W1G 8PH, UK; mrajaysuri{at}

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A 51-year-old gentleman with tetralogy of Fallot underwent pulmonary valve replacement and tricuspid valve annuloplasty necessitating endocardial pacing system extraction so that the annuloplasty ring could be sited. During the same operation, an epicardial pacing system was implanted with the generator positioned subcutaneously in an epigastric position.

Six months later, the box was moved to the left iliac fossa because of …

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