Accessory mitral valve tissue causing severe left ventricular outflow tract obstruction in an adult

Ann Thorac Surg. 2004 Feb;77(2):713-5. doi: 10.1016/S0003-4975(03)01217-7.

Abstract

Accessory mitral valve (AMV) is a rare cause of left ventricular outflow tract (LVOT) obstruction and is extremely rare in adults. We report a case of an older adult with an AMV that caused severe LVOT obstruction. A parachute-like piece of tissue (the AMV) protruding into the LVOT during systole was first detected in a 45-year-old woman by echocardiography. Because the pressure gradient and dyspnea gradually progressed, she finally underwent a successful operation for removal when she was 48 years old.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Diagnosis, Differential
  • Echocardiography, Doppler, Color
  • Echocardiography, Transesophageal
  • Female
  • Follow-Up Studies
  • Heart Defects, Congenital / diagnostic imaging
  • Heart Defects, Congenital / surgery*
  • Heart Murmurs
  • Humans
  • Hypertrophy, Left Ventricular / congenital
  • Hypertrophy, Left Ventricular / diagnostic imaging
  • Hypertrophy, Left Ventricular / surgery
  • Middle Aged
  • Mitral Valve / abnormalities*
  • Mitral Valve / diagnostic imaging
  • Mitral Valve / surgery
  • Ventricular Outflow Obstruction / congenital*
  • Ventricular Outflow Obstruction / diagnostic imaging
  • Ventricular Outflow Obstruction / surgery