Uremic patients want to know the blood purification knowledge

Uremic patients want to know the blood purification knowledge

Blood purification technology, in simple terms, is to use the machine to draw blood out of the body, through a special device purification treatment, and then the blood back to the body. At present, blood purification technology mainly includes hemodialysis, plasma exchange, hemoperfusion, immune adsorption, hemofiltration and other ways.

Uremic patients want to know the blood purification knowledge

Blood dialysis is a blood purification technique is the most common, the principle is that the human blood derived using semipermeable small molecules in the blood filtered from the blood, then the blood back to the human body, so as to achieve the effect of blood purification.

Hemoperfusion can be understood as adding a perfusion device to the dialysis machine, and the hemoperfusion device is equipped with activated carbon or resin adsorbent, which can adsorb large and medium molecular substances. Hemoperfusion and hemodialysis are often combined in order to achieve the purpose of comprehensive purification of blood.

Plasma exchange is also the blood from the body to guide, the difference is that the plasma will be separated, most of the toxins containing plasma discarded, replaced with prepared fresh plasma. Plasma exchange is the most thorough blood purification technology at present. It has a good therapeutic effect on many kinds of blood and immune system diseases.

Immune adsorption is a relatively new technique, which is similar to plasmapheresis. It also separates plasma from plasma. However, because of the higher selectivity of the column to the toxin molecules in the blood, the plasma loss is very small, and it is not necessary to prepare fresh plasma, which is safer than plasma exchange.

Hemofiltration is the derivation of blood from the body, filtering the glomerular filtration function, filtering out a large number of liquid and solutes in the blood, and then replenishing the electrolyte solution similar to the plasma component, and then returning the new blood to the human body. Hemofiltration is a blood purification technique that is closest to the human renal function. It is less effective in cleaning small molecules than hemodialysis, but it is superior to hemodialysis in cleaning large and medium molecules.

Comprehensive look at these blood purification technology, the best effect is plasma exchange, the safest is immune adsorption, the closest to the human kidney function is blood filtration. But in terms of long-term cost performance, or hemodialysis is more acceptable.

 

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