Renovascular Hypertension
Renovascular hypertension is another form of high blood pressure, which is usually caused by some type of narrowing in the renal artery.
While we know that primary hypertension affects millions of people worldwide, and accounts for over 90% of all hypertension cases. It is of great help to a doctor to know if there is another disease present, which can be contributing to the elevated blood pressure levels. A range of tests are usually prescribed to see if this is in fact the case and if so, this is known as secondary hypertension.
The most common form of secondary hypertension is known as renal hypertension. It is relatively rare as it affects no more than 1% of all adults who have primary attention.
There are two known forms of renovascular hypertension.
Atherosclerotic renovascular hypertension is when plaque is deposited along the renal artery. These deposits build up in time and narrow the archery, which in turn affects the blood flow. This type of renovascular hypertension is most common in men over the age of 45.Atherosclerotic renovascular hypertension accounts for two thirds of patients who have renovascular hypertension. In the majority of patients this hypertension affects the renal arteries leading to both kidneys.
Renovascular hypertension can also be caused by fibromuscular dysplasia. This however occurs mostly in woman under the age of 45. Patients who suffer from fibromuscular dysplasia suffer the same fate with the arteries constricting to reduce blood flow, however instead of plaque being the culprit, cells from the artery walls in this case over grow, which causes the narrowing of the arteries.
Renovascular hypertension is an age-related problem, lifestyle, genetics and environment can all lead to hypertension. Obesity, high salt diets, stress and smoking can all increase the chance that you will develop either a case of primary hypertension or renovascular hypertension.
Renovascular hypertension is usually diagnosed when hypertension develops all of a sudden, and people who are under the age of Verity or over the age of 55 years. At this time there is no definitive diagnosis for renovascular hypertension. There are however the tests that you can take to help diagnose renovascular hypertension, but these tend to be expensive, and have a certain risk factor involved.
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