Neuropathic, meaning nerve disease, is the most common type of POTS. The nerves that go to the blood vessels in the lower extremities (sympathetic nerves) are why the vessels tighten up and send the blood back up to the heart. When a person has POTS, the nerves in the lower extremities do not work properly and do not squeeze the blood back up to the heart causing blood pooling in the lower extremities. Thus, causing dizziness (orthostasis), fainting, and increased heart rate (tachycardia). Hyperadrenergic means too much adrenaline. POTS patients that are hyperadrenergic have high levels of norepinephrine in their blood. This causes an increased heart rate and blood pressure (“Types of POTS
Neuropathic, meaning nerve disease, is the most common type of POTS. The nerves that go to the blood vessels in the lower extremities (sympathetic nerves) are why the vessels tighten up and send the blood back up to the heart. When a person has POTS, the nerves in the lower extremities do not work properly and do not squeeze the blood back up to the heart causing blood pooling in the lower extremities. Thus, causing dizziness (orthostasis), fainting, and increased heart rate (tachycardia). Hyperadrenergic means too much adrenaline. POTS patients that are hyperadrenergic have high levels of norepinephrine in their blood. This causes an increased heart rate and blood pressure (“Types of POTS