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Clinical death. Clinical death is the medical term for cessation of blood circulation and breathing, the two criteria necessary to sustain the lives of human beings and of many other organisms. [1] It occurs when the heart stops beating in a regular rhythm, a condition called cardiac arrest. The term is also sometimes used in resuscitation ...
Terminology. Myocardial infarction (MI) refers to tissue death ( infarction) of the heart muscle ( myocardium) caused by ischemia, the lack of oxygen delivery to myocardial tissue. It is a type of acute coronary syndrome, which describes a sudden or short-term change in symptoms related to blood flow to the heart. [22]
Rhabdomyolysis (shortened as rhabdo) is a condition in which damaged skeletal muscle breaks down rapidly, often due to high intensity exercise over a short period of time. [6] [4] [5] Symptoms may include muscle pains, weakness, vomiting, and confusion. [3] [4] There may be tea-colored urine or an irregular heartbeat.
Sudden arrhythmic death syndrome ( SADS) is a sudden unexpected death of adolescents and adults caused by, as the name implies, a cardiac arrest. However, the exact cause of the cardiac arrest, and thus the exact cause of death, is unknown. These deaths occur mainly during sleep or at rest. [6] One type of conduction defect known as Brugada ...
Reperfusion injury, sometimes called ischemia-reperfusion injury ( IRI) or reoxygenation injury, is the tissue damage caused when blood supply returns to tissue ( re- + perfusion) after a period of ischemia or lack of oxygen (anoxia or hypoxia ). The absence of oxygen and nutrients from blood during the ischemic period creates a condition in ...
Postural orthostatic tachycardia syndrome ( POTS) is a condition characterized by an abnormally large increase in heart rate upon sitting up or standing. [1] POTS is a disorder of the autonomic nervous system that can lead the individual to experience a variety of symptoms. [10] Symptoms may include lightheadedness, brain fog, blurred vision ...
Cachexia ( / kəˈkɛksiə / [1]) is a complex syndrome associated with an underlying illness, causing ongoing muscle loss that is not entirely reversed with nutritional supplementation. A range of diseases can cause cachexia, most commonly cancer, congestive heart failure, chronic obstructive pulmonary disease, chronic kidney disease, and AIDS.
A transient ischemic attack ( TIA ), commonly known as a mini-stroke, is a minor stroke whose noticeable symptoms usually end in less than an hour. TIA causes the same symptoms associated with strokes, such as weakness or numbness on one side of the body, sudden dimming or loss of vision, difficulty speaking or understanding language, slurred ...