MCQ : Echo-19
74 years old male. Transesophageal Echocardiogram prior to cardioversion to rule out left atrial appendage thrombus
What is the Flow into the apex of the left atrial appendage?
A) Coronary artery to left atrial appendage fistulae
B) Left pulmonary vein to left atrial appendage connection
C) Artifact from a hypercontractile left atrial appendage
D) Ruptured left atrial appendage with flow into pericardium
Right answer is: B) – Left pulmonary vein to left atrial appendage connection
Prior history
• Partial anomalous pulmonary venous drainage of left upper pulmonary vein into the innominate vein and thius into the right circulation.
• Surgically corrected with pulmonary vein anastomosed to the left atrial appendage apex.
• Flow seen into appendage represents left pulmonary glow into left circulation through left atrial appendage.
