Last updated:10-20-2008
Bookmark and Share

Definition and dialysis forms

Dialysis is a process of technical means to remove waste and regulates the body's salt and fluid balance. Functions normally carried out by the kidneys.

Dialysis may be necessary when the kidneys, for one reason or another can not perform their functions in shorter or longer (see kidney failure).

There are two types of dialysis:

Hemodialysis means dialysis of their blood. It will be by way of a dialysis machine that acts as an artificial kidney, coupled to the patient's blood circulation. The blood is pumped through a hose through the machine, across a membrane with microscopic holes, through which waste can pass. On the other side of the membrane is located a special dialysis fluid, which draws waste substances from the blood. At the same time, excess fluid is pulled out through the bloodstream.

This form of dialysis requires that when a small surgical procedure increases the blood flow in a superficial vein (a vein) by linking it with an artery (an artery). This compound (a "fistula") used to access site of the needle for dialysis tubing, as required a certain pressure on the blood of dialysis.

Hemodialysis takes about. 4 hours and typically performed 3 times a week, but it is an individual, how often and how long term dialysis is necessary. In advanced chronic renal failure and total kidney failure can be behandlingsperoden rest of their lives unless carried out a successful kidney transplant.

Peritoneal dialysis means through the belly. It will be by way of taking a thin access to the abdominal cavity through the skin (a catheter) and thereby inject a few liters of dialysis fluid. The fluid is composed so that it is able to pull waste out of the numerous blood vessels in the abdominal cavity.

The fluid replacement after an hour and the process repeated numerous times over a half to two days. It is again individually, how often and how long term dialysis is necessary (see above). There are currently systems that make it possible to perform peritoneal dialysis at home.

Complications of dialysis

Some find that they become bad during hemodialysis, since they may have nausea, vomiting, cramps and blood pressure drop. Otherwise, the most common complication that the scale fistula-stop access to and must change.

Peritoneal dialysis may be complicated by obstruction of the catheter, which then must be changed. In addition, you may cause peritonitis (peritonitis), a potentially serious condition because of the release bacteria into the abdominal cavity through the catheter.

In the longer term, there may be more serious complications of both types of dialysis, for example. and after many years of treatment formed nyrecyster or at worst kidney cancer in the not functioning, shriveled kidneys.

See also the article "You and your dialysis."


This article is formed on the Health Guide on 02.08.06

Related articles:

Agencies' Uric function



Top 5


Information on these pages should not replace professional doctors.
© Copyright 2010 Health & Disease - All rights reserved
Search health and
You are here: