I once lost consciousness briefly, the condition happened very quickly, my blood pressure was a bit high at that time. What disease is this, is it dangerous? (The Kien, Ho Chi Minh City)
You have not clearly stated how the loss of consciousness occurs, for example how long it lasts, whether it is still aware of the surroundings or is accompanied by convulsions, so it is not possible to draw specific conclusions. However, transient loss of consciousness may be a sign of a seizure or a transient ischemic attack (TIA), depending on the accompanying presentation.
If you have a transient loss of consciousness accompanied by uncontrolled convulsions or stupor, blinking eyes, or collapsing (usually lasting a few minutes), it is considered suspected to be related to epilepsy.
There are two types of epilepsy: absence epilepsy and partial onset epilepsy with disturbance of consciousness (called complex partial seizures).
Absence seizures often occur in young children. For example, children who are studying or playing sometimes stop, their eyes stare for a few seconds to a few dozen seconds and then return to normal.
Complex partial-onset epilepsy can occur in children or adults. People with partial epilepsy lose external communication but can still move their arms and legs, masticate or shrink their limbs.
A doctor who suspects that a person has epilepsy will order further investigation with a brain scan (eg MRI) and an electroencephalogram. In difficult cases, electroencephalogram measurement should last 24 hours. In case seizures occur at night, polysomnography can be performed to detect the disease.
In cases of transient loss of consciousness related to transient ischemic attack (TIA), the duration is usually longer than due to epilepsy, about a few tens of minutes or can last up to an hour depending on the person. During that time, the patient may not be able to communicate.
If you lose consciousness due to a transient ischemic attack, this is a dangerous condition. People with transient ischemic attacks have a very high rate of actual stroke and brain damage. The doctor orders relevant clinical tests to evaluate and screen for early stroke.
You should go to a hospital with a neurological specialist for early examination so that the doctor can promptly find the cause, diagnose and treat it, avoiding dangerous consequences.