What Is POTS
POTS is a type of dysautonomia — a disorder of the autonomic nervous system. This department of the nervous system regulates features we don’t consciously management, corresponding to heart rate, blood pressure, sweating and body temperature. The key characteristics of POTS are the particular signs and the exaggerated enhance in heart rate when standing.
What does POTS stand for?
postural orthostatic tachycardia syndrome treatments: associated to the position of your body
Orthostatic: associated to standing upright
Tachycardia: increased coronary heart rate
Syndrome: a bunch of signs
Why does coronary heart rate increase excessively with POTS?
In most patients with POTS, the structure of the center itself is normal. POTS symptoms arise from a combination of the following:
Decrease amount of blood in the circulation
Extreme pooling of blood beneath the level of the center when upright
Elevated levels of certain hormones resembling epinephrine (also known as adrenaline since it is released by the adrenal glands) and norepinephrine (primarily launched by nerves).
Once we stand, gravity pulls more blood into the lower half of the body. In a healthy particular person, to ensure that a enough quantity of blood reaches the brain, the body activates several nervous system responses. One such response is releasing hormones that help tighten blood vessels and cause a modest improve in coronary heart rate. This leads to higher blood flow to the guts and brain. Once the brain is receiving enough 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 respond efficiently to the signal to tighten. Because of this, the longer you're upright, the more blood pools within the decrease half of your body. This leads to not enough blood returning to the brain, which can be felt as lightheadedness (faintness), brain fog and fatigue. Because the nervous system continues to launch epinephrine and norepinephrine to tighten the blood vessels, the guts rate will increase further. This might cause shakiness, forceful or skipped heartbeats, and chest pain.
Some individuals 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) after they stand.
Types and Causes of POTS
The causes of POTS vary from person to person. Researchers don’t completely understand the origins of this disorder. The classification of POTS is the topic of discussion, however most creatorities acknowledge completely different traits in POTS, which occur in some patients more than others. Importantly, these traits will not be mutually exclusive; individual with POTS may expertise more than of those on the same time:
Neuropathic POTS is a term used to describe POTS related with damage to the small fiber nerves (small-fiber neuropathy). These nerves regulate the constriction of the blood vessels within the limbs and abdomen.
Hyperadrenergic POTS is a term used to explain POTS associated with elevated levels of the stress hormone norepinephrine.
Hypovolemic POTS is a time period used to explain POTS associated with abnormally low levels of blood (hypovolemia).
Secondary POTS signifies that POTS is related with another condition known to doubtlessly cause autonomic neuropathy, such as diabetes, Lyme illness, or autoimmune disorders reminiscent of lupus or Sjögren’s syndrome.