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Related Experiment Videos

[Progressive subaortic stenosis caused by accessory mitral valve tissue].

C Aguilar Iñigo1, J Santos de Soto, A Descalzo Señorans

  • 1Servicio de Cardiología Pediátrica, Hospital Infantil Universitario Virgen del Rocío, Sevilla.

Revista Espanola De Cardiologia
|June 22, 1999
PubMed
Summary

Accessory mitral valve tissue, a rare condition, can cause significant subaortic obstruction in infants. Surgical removal of this tissue effectively resolved the obstruction and improved the patient's cardiac function.

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Area of Science:

  • Cardiology
  • Pediatric Cardiology
  • Congenital Heart Disease

Background:

  • Accessory mitral valve tissue is an uncommon congenital anomaly.
  • It can lead to severe subaortic obstruction, impacting cardiac function in neonates and infants.
  • Early diagnosis and intervention are crucial for managing this condition.

Observation:

  • A case of a two-day-old infant diagnosed with accessory mitral valve tissue via 2D-echocardiography.
  • Progressive left ventricular outflow tract obstruction was noted on serial Doppler flow analysis.
  • Cardiac catheterization confirmed obstruction, while transesophageal echocardiography later identified the accessory mitral tissue's intraventricular connections.

Findings:

  • The patient developed cardiac failure at 18 months of age.

Related Experiment Videos

  • Surgical excision of the accessory mitral valve tissue was performed, guided by intraoperative transesophageal echocardiography.
  • Post-operative echocardiography at 25 months revealed no residual left ventricle outflow obstruction.

    • Implications:

    • Surgical removal of accessory mitral valve tissue is an effective treatment for subaortic obstruction.
    • Timely diagnosis and surgical intervention can lead to complete recovery and symptom resolution in affected infants.
    • This case highlights the importance of advanced echocardiographic techniques in diagnosing and managing rare congenital cardiac anomalies.