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Sleep Apnea Learning Center
Complications could include:
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Because of daytime sleepiness, people with sleep apnea have an increased risk of: Motor vehicle accidents from driving while sleepy; Untreated obstructive sleep apnea may lead to, or worsen cardiovascular disease, such as: High blood pressure; Hea...
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The combination of behavioral changes, ventilation assistance, drug therapy, and surgery allow most people with sleep apnea to be treated successfully, although it may take some time to determine the most effective and least intrusive treatment. P...
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Treating sleep apnea by eliminating the obstruction usually prevents and reverses complications such as pulmonary hypertension, high blood pressure, and heart disease. Individuals with obstructive sleep apnea who are unable or unwilling to tolerat...
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Heart disease is any disorder that affects the heart's ability to function normally. Various forms of heart disease include: Alcoholic cardiomyopathy; Aortic regurgitation; Aortic stenosis; Arrhythmias; Cardiogenic shock; Congenital heart disease;...
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The heart, which is about the size of a human fist, is the body's largest, strongest, and most important muscle. The heart continuously pumps blood through the body, helps regulate and prolong health, and controls the flow (circulation) of blood t...
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Heart disease is the narrowing or blockage of the arteries and vessels that provide oxygen and nutrient-rich This illustration shows hypertrophic muscle in the heart. The lesions are due to an incompetent aortic valve. ( Illustration by Bryson Bio...
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A stroke is an interruption of the blood supply to any part of the brain. A stroke is sometimes called a "brain attack." See also: Arteriovenous malformation (AVM)
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The following Clinical Topic Tour provides an overview of stroke and was adapted from materials published by the National Institute of Neurological Disorders and Stroke and the Centers for Disease Control and Prevention.
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A stroke is the sudden death of brain cells in a localized area due to inadequate blood flow.
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A stroke is an interruption of the blood supply to any part of the brain. A stroke is sometimes called a "brain attack." There are two major types of stroke: ischemic stroke and hemorrhagic stroke. When a blood vessel that supplies blood to the br...
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Stroke is an increasing public health concern throughout the world as the leading cause of long-term disability. There is estimated to be over 3.5 million survivors of stroke in the United States.
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A stroke is an interruption of blood circulation to the brain causing a neurologic deficit reflecting the area of the brain affected. Stroke can be ischemic or hemorrhagic. 1 Ischemic stroke is most prevalent.
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A stroke is the sudden death of brain cells in a localized area due to inadequate blood flow.
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A stroke is an interruption of the blood supply to any part of the brain. Stroke is the leading cause of disability among adults in the United States. It is the country's third leading cause of death. This article discusses recovery from stroke. H...
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There are various clinical and pathological subtypes of stroke, and identification of the subtype is necessary for correct management. Investigations Imaging Brain imaging should be performed within the first 48 hours of the onset of stroke (see below), to determine whether the stroke is haemorrhagic or ischaemic and to exclude other causes (e.g. tumour).
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Stroke, or cerebrovascular accident (CVA), is the third leading cause of death (after heart disease and cancer) in the United States and the industrialized countries of the world. The term "stroke," which comes from subjects being suddenly "struck...
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Cerebrovascular accident (CVA) is the medical term for what is commonly termed a stroke. It refers to the injury to the brain that occurs when flow of blood to brain tissue is interrupted by a clogged or ruptured artery, causing brain tissue to di...
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A stroke, also called a cerebral infarction, is a life-threatening condition marked by a sudden disruption in the blood supply to the brain.
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A stroke, also called a cerebral vascular accident (CVA), is the sudden death of cells in a specific area of the brain due to inadequate blood flow.
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Stroke is the common name for the injury to the brain that occurs when the flow of blood to brain tissue is interrupted by a clogged or burst artery. Arterial blood carries oxygen and nutrition to the cells of the body. When arteries are unable to...
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Hypertension is the term used to describe high blood pressure. Blood pressure readings are measured in millimeters of mercury (mmHg) and usually given as two numbers. For example, 120 over 80 (written as 120/80 mmHg. The top number is your systoli...
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In populations, blood pressures fit a normal distribution, but the attendant risks of heart disease and stroke increase curvilinearly with increasing levels of blood pressure, without any obvious breakpoint ( Fig. 63-1 ). Thus, the separation of normal from high blood pressure is arbitrary, and the definition of hypertension has been a moving target.
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Blood pressure is the force with which blood pushes against the artery walls as it travels through the body. Like air in a balloon, blood fills arteries to a certain capacity—and just as too much air pressure can cause damage to a balloon, too muc...
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The following Clinical Topic Tour provides an overview of hypertension (HTN) and was adapted from materials published by the NHLBI.
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Also known as high blood pressure, a condition in which too much force is exerted by the blood as it travels through the body's arteries. There are two types of hypertension: primary and secondary. Primary, or essential, hypertension is caused by ...
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Hypertension is an independent risk factor for coronary artery disease (CAD) and stroke, leading causes of morbidity and mortality in North America. Concern has been raised that there is inadequate outpatient detection, evaluation, and treatment of hypertension, and that this is resulting in increased hospital admissions with complications of untreated hypertension: heart failure, and end-stage renal disease .
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Hypertension is the medical term for high blood pressure. Blood pressure is the force of blood pushing against the walls of arteries as it flows through them. Arteries are the blood vessels that carry oxygenated blood from the heart to the body's ...
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The National High Blood Pressure Education Program (NHBPEP) was established in 1972 by the National Institute of Health to translate research results on the health hazards of high blood pressure into clinical and public health practice. Before 190...
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Hypertension is high blood pressure. Blood pressure is the force of blood pushing against the walls of arteries. Arteries are the blood vessels that carry oxygenated blood from the heart to the body's tissues.
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Hypertension is high blood pressure. Blood pressure is the force of blood pushing against the walls of arteries as it flows through them. Arteries are the blood vessels that carry oxygenated blood from the heart to the body's tissues.
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Hypertension is high blood pressure . Blood pressure is the force of blood pushing against the walls of arteries as it flows through them.
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Problems involving disruption in sleep pattern or inability to sleep. Sleep is a period of decreased activity and muscle relaxation, characterized by patterns of deep sleep (where brain waves are slower, called non-rapid eye movement sleep) altern...
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Sleep disorders are a group of syndromes characterized by disturbances in the amount, quality, or timing of sleep, or in behaviors or physiological conditions associated with sleep.
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Sleep disorders are a group of syndromes characterized by disturbance in the individual's amount of sleep, quality or timing of sleep, or in behaviors or physiological conditions associated with sleep.
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Sleep disorders are chronic disturbances in the quantity or quality of sleep that interfere with a person's ability to function normally.
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Sleep disorders are a group of syndromes characterized by disturbance in the patient's amount of sleep, quality or timing of sleep, or in behaviors or physiological conditions associated with sleep. There are about 70 different sleep disorders. To...
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Circadian rhythm sleep disorder is a persistent or recurring pattern of sleep disruption resulting either from an altered sleep-wake schedule or an inequality between a person's natural sleep-wake cycle and the sleep-related demands placed on him ...
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Cor pulmonale is failure of the right side of the heart brought on by long-term high blood pressure in the pulmonary arteries and right ventricle of the heart.
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Cor pulmonale is an increase in bulk of the right ventricle of the heart, generally caused by chronic diseases or malfunction of the lungs. This condition can lead to heart failure .
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Unconsciousness is when a person is unable to respond to people and activities. Often, this is called a coma or being in a comatose state. Other changes in awareness can occur without becoming unconscious. Medically, these are called "altered ment...
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An arrhythmia is a disorder of the heart rate (pulse) or heart rhythm, such as beating too fast (tachycardia), too slow (bradycardia), or irregularly.
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An arrhythmia is an abnormality in the heart's rhythm, or heartbeat pattern. The heartbeat can be too slow, too fast, have extra beats, skip a beat, or otherwise beat irregularly.
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