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Related Experiment Videos

[Dynamic left intraventricular obstruction after reconstructive mitral valve surgery]

F Trabold1, A Wernet, P Olivier

  • 1Département d'anesthésie-réanimation, hôpital Broussais, Paris, France.

Annales Francaises D'Anesthesie Et De Reanimation
|December 4, 1998
PubMed
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Calcium chloride can induce left ventricular outflow tract obstruction, a serious complication after heart surgery. This condition, identified via transoesophageal echocardiography, requires specific management to restore hemodynamic stability.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Cardiovascular Physiology

Background:

  • A 71-year-old patient underwent mitral valve repair and pectus excavatus correction.
  • Postoperative cardiogenic shock developed after cardiopulmonary bypass weaning.

Observation:

  • The shock was unresponsive to inotropic drugs.
  • Transoesophageal echocardiography revealed left ventricular outflow tract obstruction.
  • Systolic anterior motion of the mitral valve was identified as the cause.

Findings:

  • Calcium chloride administration preceded the onset of cardiogenic shock.
  • Discontinuation of inotropic agents and volume expansion successfully resolved the obstruction and stabilized hemodynamics.

Implications:

Related Experiment Videos

  • Calcium chloride's hemodynamic effects can precipitate left ventricular outflow tract obstruction.
  • Transoesophageal echocardiography is crucial for diagnosing this complication.
  • Understanding this adverse effect is vital for managing patients undergoing cardiac surgery.