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What Is POTS?

What Is POTS?

POTS is a type of dysautonomia — a disorder of the autonomic nervous system. This branch of the nervous system regulates functions we don’t consciously management, reminiscent of heart rate, blood pressure, sweating and body temperature. The key traits of POTS are the precise signs and the exaggerated improve in heart rate when standing.

What does POTS stand for?
Postural: related to the position of your body

Orthostatic: related to standing upright

Tachycardia: elevated heart rate

Syndrome: a group of symptoms

Why does coronary heart rate increase excessively with POTS?
In most patients with POTS, the structure of the guts itself is normal. POTS signs arise from a combination of the next:

Decrease amount of blood within the circulation

Excessive pooling of blood below the level of the heart when upright

Elevated levels of sure hormones equivalent to epinephrine (also known as adrenaline since it is released by the adrenal glands) and norepinephrine (mainly launched by nerves).

When we stand, gravity pulls more blood into the decrease half of the body. In a healthy particular person, to ensure that a ample quantity of blood reaches the brain, the body prompts a number of nervous system responses. One such response is releasing hormones that help tighten blood vessels and cause a modest enhance in coronary heart rate. This leads to raised blood flow to the heart and brain. As soon as the brain is receiving sufficient blood and oxygen, these nervous system responses settle back to normal.

In people with POTS, for unclear reasons which will differ from person to person, the blood vessels don’t reply efficiently to the signal to tighten. Consequently, the longer you're upright, the more blood swimming pools within the lower half of your body. This leads to not enough blood returning to the brain, which could be felt as lightheadedness (faintness), brain fog and fatigue. As the nervous system continues to launch epinephrine and norepinephrine to tighten the blood vessels, the guts rate will increase further. This could cause shakiness, forceful or skipped heartbeats, and chest pain.

Some people with POTS can develop hypotension (a drop in blood pressure) with prolonged standing (more than three minutes upright). Others can develop a rise in blood pressure (hypertension) once they stand.

Types and Causes of POTS
The causes of POTS range from person to person. Researchers don’t completely understand the origins of this disorder. The classification of POTS is the subject of debate, however most creatorities recognize completely different characteristics in POTS, which occur in some patients more than others. Importantly, these characteristics usually are not mutually unique; individual with POTS may experience more than of those on the same time:

Neuropathic POTS is a time period used to explain POTS related with damage to the small fiber nerves (small-fiber neuropathy). These nerves regulate the constriction of the blood vessels in the limbs and abdomen.

Hyperadrenergic POTS is a term used to explain POTS related with elevated levels of the stress hormone norepinephrine.

Hypovolemic POTS is a time period used to explain POTS related with abnormally low levels of blood (hypovolemia).

Secondary POTS implies that POTS is related with another condition known to probably cause autonomic neuropathy, similar to diabetes, Lyme disease, or autoimmune problems equivalent to lupus or Sjögren’s syndrome.

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