Hypertension (High blood pressure) caused by renal disease is referred as
renal hypertension, and it can be divided into two types: pathological changes
in renal parenchyma and in renal blood vessels, the latter accounts for 5% to
10% of all the cases with high blood pressure. Almost 20% of all the kidney
patients develop high blood pressure. The hazards that renal hypertension is
similar to that of primary hypertension, which mainly target, apart from kidney,
the heart, brain and blood vessels.
1. the effects on the heart
With rising blood pressure, the resistance in ventriculus sinister increases,
leaving ventriculus sinister in a state of overload. So, the ventriculus
sinister would gradually thicken and expand, the cardiac muscle’s weight and
oxygen consumption increase. At the same time, high blood pressure would damage
coronary artery, resulting in atherosclerosis of coronary artery, which would
make it narrow and the supply of the blood less. With the two factors working
together, heart rate disorder, angina, MI(myocardial infarction) and heart
failure could happen.
2. the effects on the brain
Long-term hypertension would make arteriola in the brain harden, their walls
thicken, their lumen narrow, which tends to cause cerebral thrombosis. The
blocking of the blood vessel could lead to cerebral atrophy, potentially
developing into dementia.
As the structure of the cerebral blood vessels are relatively vulnerable,
especially when they are hardened, angiospasm even rupture is likely to occur
when the blood pressure fluctuates.
3. the effects on peripheral blood vessels
Because of the pathological changes in the blood vessels, the transport of
oxygen and nutritious matters to the peripheral tissues lessens, which would
cause intermittent claudication characterized in spasm and pain. Rest pain
usually occurs in the aftermath of renal thrombosis.
Considering the hazards of high blood pressure, kidney patients should
control their blood pressure strictly. Otherwise, the consequences are
vital.
If you have questions , feel free to contact our online experts who are ready
to give you advice on your treatment based on your specific conditions.
