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NHLBI

Pleural Disorders - Types

empyema  hemothorax  pleural effusion  pneumothorax 

The types of pleural disorders are pleural effusion, pleurisy, and pneumothorax. Pleural effusion is a buildup of fluid in the pleural space. Pleurisy is inflammation of the pleura. Pneumothorax occurs when air or other gas builds up in the pleural space and may cause part or all of the lung to collapse.

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NHLBI

Pleural Disorders - Signs, Symptoms, and Complications

empyema  hemothorax  pleural effusion  pneumothorax 

Pleural disorders may occur with no symptoms, or they may have obvious symptoms. Signs, symptoms, and complications vary depending on the pleural disorder and how severe it is.

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NHLBI

Cardiac CT Scan

computed tomography  computed axial tomography scan (CAT scan) 

A cardiac CT scan is a painless imaging test that uses x rays to take many detailed pictures of your heart and its blood vessels.

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NHLBI

Arrhythmia - Causes

arrhythmias  dysrhythmia 

Arrhythmia is caused by changes to heart tissue. It can also occur suddenly as a result of exertion or stress, imbalances in the blood, medicines, or problems with electrical signals in the heart. Typically, an arrhythmia is set off by a trigger, and the irregular heartbeat can continue if there is a problem in the heart. Sometimes the cause of an arrhythmia is unknown.

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NHLBI

How Sleep Works - Your Sleep/Wake Cycle

Many factors play a role in preparing your body to fall asleep and wake up. Your body has several internal clocks, called circadian clocks. These typically follow a 24-hour repeating rhythm, called the circadian rhythm. This rhythm affects every cell, tissue, and organ in your body and how they work.

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NHLBI

How Sleep Works - Sleep Phases and Stages

When you sleep, you cycle through two phases of sleep: rapid eye movement (REM) and non-REM sleep. The cycle starts over every 80 to 100 minutes. Usually there are four to six cycles per night. You may wake up briefly between cycles. Sleep studies use sensors to record eye movements and brain activity, which are used to classify sleep phases and stages.

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NHLBI

Bleeding Disorders - Signs, Symptoms, and Complications

hemophilia  von Willebrand Disease  coagulation disorders  blood clotting disorders  clotting factor deficiencies 

Signs, symptoms, and complications may differ depending on the type of bleeding disorder, its cause, and whether the disorder is mild or more serious. Signs and symptoms may be obvious soon after a child is born or not until adulthood. People who have a mild bleeding disorder may not have any signs or symptoms until they are injured or have a medical procedure.

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NHLBI

Who Is at Risk for Carotid Artery Disease?

The major risk factors for carotid artery disease include diabetes, family history of atherosclerosis, high blood pressure, lack of physical activity, metabolic syndrome, older age, overweight or obesity, smoking, unhealthy blood cholesterol levels, and unhealthy diet.

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NHLBI

Cystic Fibrosis - Treatment

CF 

While there is not yet a cure for cystic fibrosis, advances in treatment are helping people live longer, healthier lives. After early diagnosis, the goal is proactive treatment to slow down lung disease as much as possible.

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NHLBI

¿Cómo se diagnostica la aterosclerosis?

El médico diagnostica la aterosclerosis con base en sus antecedentes médicos y familiares, un examen médico y los resultados de una o más pruebas como prueba de sangre, electrocardiograma (ECG), radiografía de tórax, índice tobillo- brazo, ecocardiografía, tomografía computarizada (CT), prueba de esfuerzo y angiografía.

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