Peritoneal Dialysis (best-known as PD,) involves the removal of extra waste products from your blood. In this mode of dialysis, unlike other treatments, such as hemodialysis, the process is performed inside the body. This is a point that grabs the attention of many patients suffering from kidney disease, as it offers more practical conveniences. In contrast to hemodialysis, peritoneal dialysis is performed every day (just the way the kidneys work), and it is the patient who carries it out.
From the medical point of view, it is an advantage that this procedure is performed every day of the week because the blood stays cleaner and it is actually easier to prevent eventual crises. People do not have to wait to go to the hospital or to connect to the machine at home. All that is needed is a catheter which is inserted into the patient’s belly (and by a rather rapid procedure.)
In reality, there are two types of peritoneal dialysis. The best-known is continuous ambulatory peritoneal dialysis (CAPD.) In this case, the catheter is connected to a tube, and through it, a cleaning liquid is introduced to start the waste elimination process, such as salts and excess of water in the blood. The cleansing fluid enters and is installed throughout the patient’s abdomen in less than a quarter of an hour, and then the patient’s abdomen lining begins to filter the disposable substances. At the same time, it retains nutrients and other necessary elements for the proper functioning of the organism. The introduction of the liquid should be performed under conditions of total asepsis, as an infection in these circumstances would be very serious and difficult to treat. In case of poor hygiene, peritonitis may occur. Peritonitis occurs when germs enter the peritoneal cavity through the catheter. It may be treated with antibiotics, but the performance of a treatment is extremely urgent. However, if the patient follows the medical recommendations, he or she will have no problem at all.
The cleansing liquid (dialyzer) is left in the patient’s womb for an average of four hours so that the filtration can be effected smoothly. Obviously, each body is different, and, depending on the physiological characteristics, as well as the level of presence of noxious substances to be filtered, it remains more or less time. This treatment offers a lot of freedom since while the dialysis is taking place the patient can do everything that a normal person would do, without having to sit or lie next to a machine for hours. This is carried out in the most natural way possible: Thanks to gravity. It is not necessary to artificially suck the solution, and the patient simply replaces the liquid by the same procedure as it is mentioned above. When the dialysate has done its work, the solution containing all the residues (normally filtered by a kidney) is drained and expelled. The process is then repeated because the functions of the body do not stop, and it is repeated permanently. Hence, its name.
The other procedure is automatic. In this treatment, the patient connects the catheter to a machine, and this catches up with everything. The patient does not need to perform the exchange of new dialysate per used: It is an automatic process that even offers more freedom to patients. The machine works by cycles, like a washing machine. The patient schedules the machine at night, before going to bed, and the rest of the process is performed while the patient is resting. The interesting thing is that this machine is a totally independent equipment that works without connecting it to the drainage or the electricity. The cycling machine is not large, and, therefore, it is easy to transport, in case the patient should travel and carry it in the luggage. That is certainly another advantage.
It is important to keep in mind that this treatment takes more time (overnight, to be precise.) The patient lies down to sleep, and seven or eight hours later, the machine will have cleaned the whole body. Manual functions in this process are minimal, and, in some cases, simply non-existent.
No matter what your choice is for the peritoneal dialysis procedure when it comes to the number of times the dialysis process is performed per day, it is the very same thing. In both cases, it is permanent. The only difference is that in the first one is done manually, while in the second one it is carried out by a machine. In both procedures, insertion of a catheter into the patient’s belly is necessary, and, again, it is not a complicated operation.
These are very good options for patients with kidney failure and are a sign that it is possible to follow a normal life. I hope this information has been helpful to you, and I hope you share it with your friends, especially those who you know need these treatments.
Read also: The Most Common Questions Patients Have About Dialysis, by Joe Cosgrove