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Flammer syndrome is a condition that affects the blood flow to various organs and tissues, causing symptoms such as cold hands and feet, low blood pressure, and migraine. It is associated with normal tension glaucoma and other eye diseases, and can be diagnosed by nail fold capillaroscopy.
Korotkoff sounds are the sounds that medical personnel listen for when they are taking blood pressure using a non-invasive procedure. They are named after Nikolai Korotkov, who discovered them in 1905, and they are produced by turbulence in the arteries due to changes in cuff pressure.
Blood squirt is a projectile expulsion of blood when an artery is ruptured. Learn about the anatomy, iconography, and animal behavior related to blood squirt, and see references and external links.
Blood pressure is the pressure of circulating blood against the walls of blood vessels, usually measured in millimeters of mercury or kilopascals. Learn about the normal and abnormal values, the factors that affect blood pressure, and the methods and devices for measuring it.
Choke-out is a combat tactic that causes temporary loss of consciousness by constricting blood flow to the brain. It can be fatal or cause serious injuries if applied for too long or incorrectly. Learn more about the types, mechanisms, and risks of chokeholds.
Reflex syncope is a brief loss of consciousness due to a neurologically induced drop in blood pressure and/or a decrease in heart rate. It may be triggered by various factors, such as seeing blood, pain, emotional stress, or pressure on the carotid sinus. Ringing in the ears is one of the early signs of reflex syncope.
Strongly modulated blood flow pulse in central and branch arteries can result from hypertension. Microangiography by laser Doppler imaging [3] may reveal altered hemodynamics non-invasively. Mild signs of hypertensive retinopathy can be seen quite frequently in normal people (3–14% of adult individuals aged ≥40 years), even without ...
Orthostatic hypotension is a condition where blood pressure drops when standing or sitting, causing symptoms such as lightheadedness, fainting, or confusion. It can be caused by various factors, such as medications, dehydration, or neurological disorders, and may have serious complications.