An unusual cause of left ventricular outflow tract obstruction: obstructive pannus on the left ventricular side of a mechanical mitral prosthesis

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All of the authors have no conflict of interest.

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Correspondence to Macit Kalçık.

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Supplementary material 1 (AVI 304 kb) Video 1. Transthoracic echocardiography with color flow imaging showed flow acceleration through LVOT

Supplementary material 2 (AVI 603 kb) Video 2. Two-dimensional transesophageal echocardiography with transducer array at 120° revealed that the hyperechogenic mass on the ventricular side of the mechanical mitral valve caused LVOT obstruction

Supplementary material 3 (AVI 156 kb) Video 3. Real-time three-dimensional transesophageal echocardiographic visualization of the mechanical mitral valve (MMV) from left atrial view demonstrated eccentric pannus overgrowth anteriorly localized on the ventricular side of the MMV

Supplementary material 4 (AVI 111 kb) Video 4. Real-time three-dimensional transesophageal echocardiographic visualization of the mechanical mitral valve (MMV) from left ventricular view revealed pannus overgrowth as a secondary circular feature on the ventricular side of the MMV

Supplementary material 5 (AVI 573 kb) Video 5. Transthoracic echocardiography with color flow imaging showed normal LVOT flow pattern after pannus resection

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Kalçık, M., Toprak, C., Gürsoy, M.O. et al. An unusual cause of left ventricular outflow tract obstruction: obstructive pannus on the left ventricular side of a mechanical mitral prosthesis. J Echocardiogr 12, 120–122 (2014). https://doi.org/10.1007/s12574-014-0218-0

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Keywords

  • Mitral Valve Replacement
  • Left Ventricular Outflow Tract
  • Left Ventricular Outflow Tract Obstruction
  • Ventricular Outflow Tract Obstruction
  • Mechanical Prosthesis