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Three-dimensional echocardiographic assessment of acquired left ventricular to right atrial shunt (Gerbode defect)

Kibar Yared1, Jorge Solis, Jonathan Passeri

  • 1Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, USA. kyared@partners.org

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
|February 10, 2009
PubMed

Insights

A novel acquired Gerbode defect was identified after aortic valve replacement. Real-time 3-dimensional echocardiography accurately visualized the left-to-right shunt, aiding in treatment planning.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Cardiac Surgery

Background:

  • Bioprosthetic aortic valve replacement can be complicated by recurrent endocarditis.
  • Acquired Gerbode defects, a rare complication, involve shunting between the left ventricle and right atrium.

Observation:

  • A 60-year-old male presented with recurrent endocarditis post-aortic valve replacement.
  • Transthoracic echocardiography revealed a left-to-right shunt from the left ventricular outflow tract to the right atrium, consistent with an acquired Gerbode defect.

Findings:

  • Real-time 3-dimensional echocardiography precisely delineated the shunt's origin and trajectory.
  • Accurate differentiation from tricuspid regurgitation is crucial for avoiding overestimated right ventricular systolic pressure.

Implications:

  • 3D echocardiography offers detailed visualization of acquired Gerbode defects.
  • This imaging modality aids in planning optimal surgical or catheter-based interventions for complex cardiac defects.

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