The vascular system, or a part thereof. For example, the pulmonary vascular bed describes the blood vessels of the lungs.
- Vascular dementia
A common form of dementia in older persons that is due to cerebrovascular disease, usually with stepwise deterioration from a series of small strokes and a patchy distribution of neurologic deficits affecting some functions and not others. Symptoms include confusion, problems with recent memory, wandering or getting lost in familiar places, loss of bladder or […]
- Vascular endothelial growth factor (VEGF)
A substance made by cells that stimulates new blood vessel formation, a mitogen for vascular endothelial (vessel lining) cells. VEGF is a polypeptide structurally related to platelet-derived growth factor (PDGF). The gene for VEGF is on chromosome 6p12.
- Vascular headache
A group of headaches felt to involve abnormal sensitivity of the blood vessels (arteries) in the brain to various triggers which results in rapid changes in the artery size due to spasm (constriction). Other arteries in the brain and scalp then open (dilate), and throbbing pain is perceived in the head. Migraine headaches are the […]
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- Vasculitis, allergic
A disease (also more commonly called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in persons with a history of asthma or allergy. The symptoms of the Churg-Strauss syndrome include fatigue, weight loss, inflammation of the nasal passages, numbness, and weakness. The ultimate test for the diagnosis of Churg-Straus syndrome is a biopsy […]