Dizziness or blackouts
What dizziness or blackouts can mean
There can be many causes for dizziness. The commonest episodes would be due to low blood pressure, or a phenomenon known as vaso-vagal syncope. However it would be important to rule out cardiac arrhythmias and ensure that a pacemaker is not required.
Investigations would usually include an ECG, echocardiogram and ECG monitoring.
Tests that may be used
ECGA 12 lead heart tracing, usually taken during the consultation.
EchocardiogramA painless ultrasound scan of the heart muscle and valves.
Ambulatory ECG (Holter monitor)A portable ECG you wear for up to 7 days.
ZIO ECG patchA waterproof patch that records your heart rhythm for up to 14 days.