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NHLBI

¿Cuáles son las causas de la presión arterial alta?

Los cambios en las funciones normales del cuerpo, ya sean causados por los genes o por el medio ambiente, pueden provocar la presión arterial alta. Estos cambios incluyen cambios en el equilibrio entre los líquidos y la sal en los riñones, así como cambios en el sistema renina angiotensina aldosterona, en la actividad del sistema nervioso simpático, y en la estructura y función de los vasos sanguíneos.

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NHLBI

High Blood Cholesterol: Screening and Prevention

hypercholesterolemia 

Your doctors will order routine lipid panel blood tests to screen for high blood cholesterol. Learn about heart-healthy lifestyle changes that your doctor may recommend to help you prevent high blood cholesterol.

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NHLBI

Factores de riesgo del tromboembolismo venoso

Algunos factores de riesgo para el TEV pueden ser un episodio anterior de TEV; una cirugía; afecciones como el cáncer o una lesión de la médula espinal; el embarazo; parálisis o períodos largos de inmovilización; genes específicos, y ciertas circunstancias relacionadas con la edad, la raza y el sexo. En la mayoría de los casos de TEV, existe más de un factor de riesgo involucrado. Cuantos más factores de riesgo tenga, mayores serán las probabilidades de padecer TEV.

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NHLBI

Signos, síntomas y complicaciones del tromboembolismo venoso

A veces, el TEV no causa síntomas hasta que ocurren complicaciones graves. En otros casos, la trombosis venosa profunda provoca hinchazón o malestar cerca del coágulo de sangre. La embolia pulmonar puede causar dolor en el pecho y dificultad para respirar. La embolia pulmonar puede ser una afección potencialmente mortal.

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NHLBI

Venous Thromboembolism - Risk Factors

Risk factors for VTE include a history of a previous VTE event; surgery; medical conditions such as cancer or spinal cord injury; pregnancy; paralysis or long periods of immobilization; specific genes; and certain circumstances related to age, race, and sex. In most cases of VTE, there is more than one risk factor involved. The more risk factors you have, the greater the chance you have of developing VTE.

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NHLBI

What Causes a Stroke?

Buildup of plaque and blood clots causing blockage of an artery that supplies oxygen-rich blood to the brain can cause an ischemic stroke, while sudden bleeding from causes such as high blood pressure can result in a hemorrhagic stroke.

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NHLBI

Pleural Disorders - Causes

Pleural disorders may be caused by inflammation, injury, or an imbalance of fluids in the pleural space.

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NHLBI

Vasculitis - Causes

Vasculitis occurs when your immune system injures your blood vessels by mistake. What causes this to happen is not fully known, but when it occurs, your blood vessels become inflamed and can narrow or close off. Rarely, the blood vessel wall may weaken, causing it to expand or bulge. This bulge is known as an aneurysm.

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NHLBI

Sarcoidosis - Diagnosis

inflammation  sarcoidosis  granuloma 

Your doctor will diagnose sarcoidosis based on your symptoms, a physical exam, imaging tests, or a biopsy of an affected organ. The doctor will also do tests to rule out other diseases that have similar signs and symptoms.

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NHLBI

Venous Thromboembolism - Causes

VTE occurs in the veins that carry blood to your heart. Blood clots can develop in veins damaged by surgery or trauma, or a result of inflammation in response to an infection or injury.

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