What is hemodialysis
- What is hemodialysis
- What is hemodialysis and why is it performed?
- What is hemodialysis PDF?
- How dangerous is hemodialysis?
- Hemodialysis pdf 2021
- Which is better hemodialysis or dialysis?
- How long does hemodialysis last?
- What is the function of the dialyzer?
- Complications of hemodialysis pdf
- What is UF in hemodialysis?
- How many years does a person on dialysis live?
- What are the consequences of dialysis?
- Hemodialysis machine and its parts
Both are equally effective for treatment. Peritoneal dialysis is a home technique (“done at home”) and hemodialysis is usually done in a dialysis center, hospital or not, although advances in techniques mean that more and more patients are undergoing hemodialysis at home.
There are two types of peritoneal dialysis: manual, in which the patient undergoes an average of 3 to 5 exchanges per day depending on the patient’s needs. And the automatic one, in which the exchanges are performed at night by a machine we call “cycler”.
Each patient has his own dry weight, and it is defined as the ideal weight he should have as long as he has no accumulated fluid. Thus, for example, an individual with a dry weight of 70 kg, if he/she weighed 72 kg before being connected to the machine, would have to lose 2 kg of weight that has accumulated in liquid. Whenever a patient undergoes dialysis, it is intended, as far as possible, that once the session is over, he/she should be able to remain at his/her dry weight, since this would indicate that the excess fluid in his/her body has been eliminated.
What is hemodialysis and why is it performed?
Hemodialysis is a treatment to filter toxins and water from the blood, just as the kidneys did when they were healthy. It helps control blood pressure and balance important minerals in the blood such as potassium, sodium and calcium.
What is hemodialysis PDF?
Hemodialysis (HD) is an extracorporeal blood purification technique that partially supplements the renal functions of excreting water and solutes, and regulating acid-base and electrolyte balance. It does not supplement renal endocrine or metabolic functions.
How dangerous is hemodialysis?
Insufficient hemodialysis can cause inflammation of the membrane surrounding the heart, which can interfere with the heart’s ability to pump blood to the rest of the body. High potassium levels (hyperkalemia) or low potassium levels (hypokalemia).
Hemodialysis pdf 2021
The MGH is a national reference center that provides care to patients with CKD who require replacement therapy. Stabilized patients are referred to peritoneal dialysis or transplant programs, or they seek other institutions that can support them with three weekly hemodialysis sessions (optimal hemodialysis).
The reasons studied for remaining on intermittent hemodialysis were: (a) they cannot have co-responsibility in the management and learning of peritoneal dialysis (50%); (b) they cannot afford more hemodialysis sessions or even cannot afford the expenses of a transfer to the hemodialysis unit (39%); (c) for the convenience of attending intermittent hemodialysis sessions (23%); (d) because they were waiting to enter the chronic hemodialysis program of the General Hospital of Mexico (16%), and (e) 34. 5% of patients said they were unaware of alternatives to intermittent hemodialysis, such as peritoneal dialysis.
1. López-Cervantes M, Rojas-Russell ME, Tirado-Gómez LL, Durán-Arenas L, Pacheco-Domínguez RL, Venado-Estrada AA. Chronic kidney disease and its care by substitutive treatment in Mexico. Mexico City: Faculty of Medicine, National Autonomous University of Mexico, 2009.
Which is better hemodialysis or dialysis?
Peritoneal dialysis is less efficient than hemodialysis and is therefore an alternative for people weighing less than 80 kilograms, but it is an excellent option for children,” says Dr. Zahnder.
How long does hemodialysis last?
On average, the process takes four hours. Most people have the treatment three to four times a week. While your hemodialysis treatment is being done, you can read, sleep and even watch TV.
What is the function of the dialyzer?
The blood drawn from the patient reaches the dialyzer through a conduit, which allows the entry of about 400 milliliters of blood per minute. Once inside the dialyzer, the blood comes into contact with the dialysis fluid through a semi-permeable membrane.
Complications of hemodialysis pdf
This fistula should be planned with a minimum of 3-6 months, time necessary for its adequate development and maturation. When you have bad veins or they have been exhausted by previous fistulas, a tube is placed between the artery and the vein made of a special material (goretex) and that is where it is punctured. It is very important that if your future dialysis option is hemodialysis, you protect the main veins in your arms as much as possible for future fistulas; blood tests should be drawn from veins on the back of the hand and arm.
If renal failure is acute or there has been a rapid worsening of chronic renal failure, it is necessary to resort to the placement of a temporary catheter in a thick femoral or jugular vein, which carries a risk of infections and thrombosis that may complicate the functioning of future fistulas. Its placement and use is immediate.
If the temporary catheter is expected to remain in place for more than 3-4 weeks, it is recommended to place an indwelling catheter, which, due to its material and subcutaneous route, presents fewer complications and can be maintained for much longer. Its placement is relatively simple and requires some care on the part of both the patient and the health personnel. In any case, an indwelling catheter should never be a long-term option, unless it is impossible to create a fistula.
What is UF in hemodialysis?
Peritoneal dialysis (PD) has a lower ultrafiltration (UF) capacity than hemodialysis and this can become a problem in high-transporter patients, especially when they lose diuresis.
How many years does a person on dialysis live?
Although cardiovascular causes as a whole and infections are the most frequent causes in all the series, in general terms and taking into account overall data, the mortality of these patients can be estimated at 14%, while survival at 5 years is close to 56%.
What are the consequences of dialysis?
A sudden drop in blood pressure during dialysis has short-term side effects, such as gastrointestinal, muscular and neurological symptoms. Patients also suffer long-term stroke, heart damage and even death.
Hemodialysis machine and its parts
At the beginning of a hemodialysis treatment, a nurse or dialysis technician will place two needles in the patient’s arm. The patient may prefer to put in his or her own needles after the health care team has trained the patient. You can use a cream or spray to numb the skin if the needles bother you at the point of entry. Each needle is attached to a soft tube connected to the dialysis machine.
Blood passes through one end of the filter and enters many very thin hollow fibers. As the blood passes through the hollow fibers, the dialysis solution passes in the opposite direction on the outside of the fibers. Toxins from the blood pass into the dialysis solution. The filtered blood remains in the hollow fibers and returns to the body.
The nephrologist, a physician who specializes in kidney problems, will prescribe a dialysis solution to meet the patient’s needs. The dialysis solution contains water and chemicals that are added to safely remove toxins, excess salt and fluid from the blood. The physician may adjust the balance of chemicals in the solution if: