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
- VSD murmurs can have a higher frequency quality
- Varies with respiration
- 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.