Vasovagal syncope Flashcards
Define vasovagal syncope.
Temporary loss of consciousness due to the sudden decline of blood flow the brain.
Explain the aetiology/risk factors for vasovagal syncope.
When the vagus nerve is stimulated, it leads to a slowing of the heart rate and dilation of the body’s blood vessels. With a slow heart rate and dilated blood vessels, less blood gets to the brain, causing a fainting spell.
Can be familial.
Summarise the epidemiology of vasovagal syncope.
Syncope accounts for 1 percent to 3 percent of emergency room visits and 6 percent of hospital admissions, according to the American Academy of Family Physicians.
What are the signs and symptoms of vasovagal syncope?
Symptoms may vary. Some children experience “presyncope”, a feeling that they are about to faint. Others may have no presyncopal sensations.
What are appropriate investigations for vasovagal syncope?
Consider blood tests
ECG
Tilt Table test
Echo
What is the management for vasovagal syncope?
Educate child and parents.
Avoid situations that trigger episodes.
What are complications associated with vasovagal syncope?
Usually harmless and requires no treatment.
What is the prognosis of vasovagal syncope?
Benign prognosis.