Gerbode defect

Gerbode defect

Gerbode defect

Gerbode defect is

[A] Shunt between LV and LA
[B] Shunt between LV and RA
[C] Shunt between LA and RA
[D] Shunt between LV and RV

Gerbode defect

Gerbode defect

  • Gerbode defect
  • Abnormal shunting between the left ventricle and right atrium
  • congenital defect or prior cardiac insults.
  • Most prevalent cause of Gerbode defect – congenital
  • Acquired cases has recently been reported

Gerbode defect – Characteristic murmur

  • LV-RA shunt is a similar to that of a VSD: loud, harsh pansystolic
  • Grade III–VI
  • Unvarying with respiration
  • Often associated with a thrill along the left sternal border

Gerbode defect murmur – Differentiate from VSD

  1. VSD murmurs can have a higher frequency quality
  2. Varies with respiration
  3. Becoming softer during inspiration

Diagnostic procedure of choice

  • Transesophageal echocardiography (TEE)

Echocardiographic findings suggesting Gerbode defect

  • (1) atypical jet direction
  • (2) persistent shunt flow into diastole
  • (3) lack of ventricular septal flattening
  • (4) no right ventricular hypertrophy
  • (5) normal diastolic pulmonary artery pressure as estimated from the pulmonic regurgitant velocity.

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