Orthostatic hypotension is a special type of fainting that occurs after the patient transitions from horizontal to vertical position. Fainting – a sudden short-term loss of consciousness within a few seconds, accompanied by a weakening of the heart and breathing and resulting from a rapidly developing decrease in cerebral circulation. Physiological muscle tone is also reduced, as a result of which the patient may fall.
The cause of acute onset of anemia of the brain is usually a temporary violation of the tone (natural tension) of the blood vessels, there is an outflow of blood from the brain, skin, muscles, and a drop in blood pressure.
In idiopathic cases, unknown TSNA.
Symptomatic forms can be observed in the following cases:
- during convalescence;
- after sympathectomy ;
- with an overdose of antihypertensive drugs;
- when turning off the vasoconstrictor centers and fibers in cases of damage to the spinal cord;
- polyneuropathies :
- orthostatic hypotension often accompanies primary amyloidosis.
The clinical picture.
Depending on the severity of SLE tea or unconsciousness occurs immediately after the patient standing up, or after a certain time after the adoption of the vertical position.
The loss of consciousness is usually preceded by a symptom complex of fainting sensations:
- “Fly” to the eye E, and so on. P ..
Patients, focusing on them, can avoid falling by crouching or taking a horizontal position.
A special variant of idiopathic postural hypotension is Shay – Drager syndrome , in which, in addition to collapses, they detect:
- tremor (trembling)
- monotonous speech
- violation of the pelvic functions.
This complex, somewhat reminiscent of parkinsonism due to orga nical brain damage.
Symptomatic treatment, including vasoconstrictor ( vasoconstrictive ) agents. Neurotropic vasoconstrictors of a central action increase vascular tone, providing a direct stimulating effect on vasomotor centers. This group includes hl. arr. analeptic drugs :: corazole, camphor , cordiamine , etc.
Apply some psychostimulating agents: caffeine, phenamine.