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Pressure damping, a “billowing” septum, and an eerie silence: perioperative, intermittent obstruction of a mitral valve prosthesis
  1. W Keeble,
  2. S M Cobbe
  1. Department of Medical Cardiology, Royal Infirmary, 10 Alexandra Parade, Glasgow G31 2ER, UK
  1. Dr Keeble


This case, involving a 74 year old man who underwent mitral valve and aortic valve replacements, provides detailed insight into the perioperative echocardiographic and haemodynamic changes occurring when a mitral valve prosthesis intermittently obstructs. It illustrates the early sequence of electromechanical dissociation which would lead to cardiac arrest should a tilting disc prosthesis be immobilised in the closed position.

  • prosthetic valve replacement
  • echocardiography
  • intermittent obstruction

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