Vasovagal Syncope

Amelia Heart & Vascular Center is a respected leader in vascular medicine serving the Northern Virginia area.

Vasovagal syncope is when a person faints because the body overreacts to a trigger like the sight of blood or emotional distress. Vasovagal syncope will cause the heart rate and blood pressure is drop suddenly.


While there is no classical vasovagal syncope trigger, there are some common triggers that may lead to fainting. These triggers include

  • Standing for long periods of time
  • Heat exposure
  • Seeing blood
  • Having blood drawn
  • Fear of bodily injury


Before the patient faints, they could experience the following

  • Pale skin
  • Lightheadedness
  • Nausea
  • Yawning
  • Cold, clammy sweat
  • Blurred vision

Imaging and Diagnostics:

There are many ways for the doctor to diagnose vasovagal syncope. Below are tests that the doctor may ask the patient to make a proper diagnosis

  • Electrocardiogram
  • Echocardiogram
  • Stress test
  • Blood tests


In most cases, treatment for vasovagal syncope is unnecessary, however, if the patient experiences vasovagal syncope enough, the doctor may suggest some treatment options

  • Medication
  • Therapy