IV -
Why does high blood pressure exist?
4.1
- Most of the time, there is no explanation for this high blood pressure
But sometimes a disease is responsible for
hypertension:
the secondary arterial hypertensions
4.2
- The medical procedure
4.3 - Causes
4.3.1
- Drugs
4.3.2
- An hormonal disorder
4.3.3
- High blood pressure induced by the kidney
4.3.4
- A rare cause: presence of an obstacle in the aorta
4.3.4
- A rare
cause: presence of an obstacle in the aorta
This disease is called the coarctation of the aorta, i.e. that the vessel which
come out the heart (aorta) is obstructed, which reduces the blood-flow and
raises the blood pressure in the upper limbs.
Thus, the doctor sees a rise
in the blood pressure only in the arms, but not in the lower limbs.
The aorta makes a noise (a " murmur") when the doctor listens
it with his stethoscope.
Its treatment is only instrumental
and is based on the dilation of the artery by a per-coetaneous device.
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last modified on : 28 sep 2003 |
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