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What is secondary pulmonary hypertension?

Secondary pulmonary hypertension is a disorder of the blood vessels in the lungs. It usually is the result of other lung diseases or related diseases in other organs. The disorder is characterized by breathing difficulties, especially after exertion. Secondary pulmonary hypertension is increased pressure of the blood vessels of the lungs as a result of other

medical conditions.Secondary pulmonary hypertension occurs when pulmonary hypertension is caused by another disease process or cardiac defect to a primary diagnosis (known cause). These include scleroderma, CREST syndrome, systemic lupus erythametous, and mixed connective tissue disease (MCTD).

Secondary pulmonary hypertension can result from lung disease, heart disease, low oxygen in the blood (hypoxia) and obstruction of the pulmonary vessels (from clots, foreign body, parasites and certain blood disorders). Some conditions may be associated with clinical primary pulmonary hypertension including cirrhosis, AIDS, connective tissue diseases, and certain toxins. Secondary pulmonary hypertension is a complication of conditions such as upper airway obstructions that limit the amount of oxygen reaching body tissues (hypoxia), congenital heart disease, blood clots, lung disease such as pneumonia or meconium aspiration syndrome, liver disorders, and other diseases that affect the vascular system. The pulmonary artery carries blood from the right side of the heart to the lungs, where the blood receives oxygen. When pulmonary hypertension damages the pulmonary artery and other blood vessels in the lungs, it is more difficult for the blood to get through. This puts stress on the right side of the heart, which has to work even harder to pump the blood to the lungs, causing the right side of the heart to enlarge.

More information on pulmonary hypertension

What is pulmonary hypertension? - Pulmonary hypertension (PH) is a rare lung disorder in which the blood pressure in the pulmonary artery rises far above normal levels.
What is primary pulmonary hypertension? - Primary pulmonary hypertension is a rare, progressive disorder characterized by high blood pressure of the main artery of the lungs.
What is secondary pulmonary hypertension? - Secondary pulmonary hypertension is a disorder of the blood vessels in the lungs. It is the result of other lung diseases.
What causes pulmonary hypertension? - Pulmonary hypertension is the result of greater resistance to blood flow. Secondary pulmonary hypertension can be associated with breathing disorders.
What're the symptoms of pulmonary hypertension? - Symptoms of primary pulmonary hypertension include shortness of breath especially during exercise, chest pain, and fainting episodes.
How is pulmonary hypertension diagnosed? - Diagnostic tests for pulmonary hypertension involve blood tests, electrocardiography, arterial blood gas measurements, X-rays.
What's the treatment for pulmonary hypertension? - Treatment of pulmonary hypertension involves treating the underlying causes, using supplemental oxygen to increase blood oxygen levels, diuretics.
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