Stroke
The sudden death of brain cells due to lack of oxygen, caused by blockage of blood flow or rupture of an artery to the brain. Sudden loss of speech, weakness, or paralysis of one side of the body can be symptoms. A suspected stroke can be confirmed by scanning the brain with special X-ray tests, such as CAT scans. The death rate and level of disability resulting from strokes can be dramatically reduced by immediate and appropriate medical care. Prevention involves minimizing risk factors, such as controlling high blood pressure and diabetes. Abbreviated CVA. Also known as cerebrovascular accident.
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- Stroke index
A cardiodynamic measure. Stroke volume is the amount of blood the left ventricle ejects in one beat, measured in milliliters per beat (ml/beat). The stroke volume can be indexed to a patient’s body size by dividing by the body surface area to yield the stroke index.
- Stroke volume
The amount of blood pumped by the left ventricle of the heart in one contraction. The stroke volume is not all the blood contained in the left ventricle; normally, only about two-thirds of the blood in the ventricle is expelled with each beat. Together with the heart rate, the stroke volume determines the output of […]
- Stroke, National Institute Neurological Disorders
One of the National Institutes of Health in the U.S., the NINDS’s mission is to “support and conduct research and research training on the normal structure and function of the nervous system and on the causes, prevention, diagnosis, and treatment of more than 600 nervous system disorders including stroke, epilepsy, multiple sclerosis, Parkinson’s disease, head […]
- Stroke, silent
Small strokes that do not cause any symptoms. Silent strokes still damage brain tissue. The most common symptom of a stroke is weakness or paralysis on one side of the body or the other. There may be a partial or complete loss of voluntary movement and/or sensation in a leg and/or arm. A stroke can […]
- Strollerobics
Aerobics with a stroller. Strollerobics are exercises characteristically performed by new mothers, incorporating strollers that contain their new babies. Stollerobics were invented in the mid-1990s in California.