What is vascular flutter?
Vascular flutter is a symptom characterized as:
"...the artery is constricted as a result of accumulated plaque on its inner walls. To maintain a constant flow rate, the blood must travel faster than normal through the constriction. If the blood speed is sufficiently high in the constricted region, the artery may collapse under external pressure, causing a momentary interruption in blood flow... As the blood rushes through the constricted artery, the internal pressure drops and again the artery closes..."
Source: Dr. Mark Papenhausen, Vascular Surgeon, Radia Center for Vascular Disease for Providence Health and Services. See Related Link for more.