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Secondary hypertension (or, less commonly, inessential hypertension) is a type of hypertension which has a specific and identifiable underlying primary cause. It is much less common than essential hypertension , affecting only 5-10% of hypertensive patients.
The pathophysiology of hypertension is an area which attempts to explain mechanistically the causes of hypertension, which is a chronic disease characterized by elevation of blood pressure. Hypertension can be classified by cause as either essential (also known as primary or idiopathic) or secondary. About 90–95% of hypertension is essential ...
When a medical condition or medication causes high blood pressure, it’s known as secondary hypertension. Secondary hypertension can be caused by: Sleep apnea. Problems with your adrenal glands.
Rates of high blood pressure in children and adolescents have increased in the last 20 years in the United States. [166] Childhood hypertension, particularly in pre-adolescents, is more often secondary to an underlying disorder than in adults. Kidney disease is the most common secondary cause of hypertension in children and adolescents.
High blood pressure—Comprehensive overview covers symptoms, treatment, and prevention of hypertension.
Renovascular hypertension is a condition in which high blood pressure is caused by the kidneys' hormonal response to narrowing of the arteries supplying the kidneys. [1] When functioning properly this hormonal axis regulates blood pressure. Due to low local blood flow, the kidneys mistakenly increase blood pressure of the entire circulatory system.