Kidney Failure: Choosing a Treatment That's Right for You

Introduction

Your kidneys filter wastes from your blood and regulate other functions of your body. When your kidneys fail, you need treatment to replace the work your kidneys normally perform.

Developing kidney failure means you have some decisions to make about your treatment. You may choose to forgo treatment. If you choose to receive treatment, your choices include hemodialysis, which requires a machine used to filter your blood outside your body; peritoneal dialysis, which uses the lining of your belly to filter your blood inside the body; and kidney transplantation, in which a new kidney is placed in your body. Each treatment has advantages and disadvantages. Your choice of treatment will have a big impact on your day-to-day lifestyle, such as being able to keep a job if you are working. You are the only one who can decide what means most to you. Reading this information is a good way to learn about your options so you can make an informed choice. And, if you find that your choice is not a good fit for your life, you can change treatments. With the help of your health care team, family, and friends, you can lead a full, active life.

When Your Kidneys Fail

Healthy kidneys clean your blood by removing excess fluid, minerals, and wastes. They also make hormones that keep your bones strong and your blood healthy. When your kidneys fail, harmful wastes build up in your body, your blood pressure may rise, and your body may retain excess fluid and not make enough red blood cells. When this happens, you need treatment to replace the work of your failed kidneys.

Treatment Choice: Hemodialysis

Purpose

Hemodialysis cleans and filters your blood using a machine to temporarily rid your body of harmful wastes, extra salt, and extra water. Hemodialysis helps control blood pressure and helps your body keep the proper balance of important chemicals such as potassium, sodium, calcium, and bicarbonate.

Dialysis can replace part of the function of your kidneys. Diet, medications, and fluid limits are often needed as well. Your diet, fluids, and the number of medications you need will depend on which treatment you choose.

How Hemodialysis Works

Hemodialysis uses a special filter called a dialyzer that functions as an artificial kidney to clean your blood. The dialyzer is a canister connected to the hemodialysis machine.

During treatment, your blood travels through tubes into the dialyzer, which filters out wastes, extra salt, and extra water. Then the cleaned blood flows through another set of tubes back into your body. The hemodialysis machine monitors blood flow and removes wastes from the dialyzer.

Hemodialysis is usually done three times a week. Each treatment lasts from 3 to 5 or more hours. During treatment, you can read, write, sleep, talk, or watch TV.

Getting Ready

Several months before your first hemodialysis treatment, an access to your bloodstream will need to be created. You may need to stay overnight in the hospital, but many patients have their access created on an outpatient basis. This access provides an efficient way for blood to be carried from your body to the dialyzer and back without causing discomfort. The two main types of access are a fistula and a graft.

If your kidney disease has progressed quickly, you may not have time to get a permanent vascular access before you start hemodialysis treatments. You may need to use a catheter-a small, soft tube inserted into a vein in your neck, chest, or leg near the groin-as a temporary access. Some people use a catheter for long-term access as well. Catheters that will be needed for more than about 3 weeks are designed to be placed under the skin to increase comfort and reduce complications.

For more information about vascular access, see the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) fact sheet Vascular Access for Hemodialysis.

Who Performs Hemodialysis

Hemodialysis is most often done in a dialysis center by patient care technicians who are supervised by nurses. Medicare pays for three hemodialysis treatments each week. If you choose in-center treatment, you will have a fixed time slot three times per week on Monday-Wednesday-Friday or Tuesday-Thursday-Saturday. If you do not get the time slot you want at first, you can ask to be put on a waiting list for the time slot you prefer. For a special event, you may be able to trade times with someone else. You will want to think about the dialysis schedule if you work or have children to care for. Some centers offer in-center nocturnal dialysis. This treatment is done for a longer period at night, while you sleep at the center. Getting more dialysis means fewer diet and fluid limits, and this treatment leaves your days free for work, child care, hobbies, or other tasks.

You can choose to learn how to do your own hemodialysis treatments at home. When you are the only patient, it is possible to do longer or more frequent dialysis, which comes closer to replacing the steady work healthy kidneys do. Daily home hemodialysis (DHHD) is done 5 to 7 days per week for 2 to 3 hours at a time, and you set the schedule. If your health plan will pay for more than three treatments, you might do the short treatments in the mornings or in the evenings. Nocturnal home hemodialysis (NHHD) is done 3 to 6 nights per week while you sleep. Either DHHD or NHHD will allow a more normal diet and fluids, with fewer blood pressure and other medications. Most programs want people doing hemodialysis at home to have a trained partner in the home while they do treatments. Learning to do home hemodialysis is like learning to drive a car-it takes a few weeks and is scary at first, but then it becomes routine. The dialysis center provides the machine and training, plus 24-hour support if you have a question or problem. New machines for home dialysis are smaller and easier to use than in-center ones.

You have a choice of dialysis centers, and most towns have more than one center to choose from. You can visit a center to see if it has the treatments you want or the time slot you need. Some centers will let you use a laptop or cell phone or have visitors, and others will not. Medicare has a list of all U.S. centers on its Dialysis Facility Compare website with quality ratings for each. Your health plan may have a list of centers you can use. If you choose in-center treatment, you may want the center to be close to your home to reduce your travel time. If you do a home treatment, once you are trained you only need to visit the center once a month. So, the center can be as far away as you are willing to travel once a month.

Possible Complications

Vascular access problems are the most common reason for hospitalization among people on hemodialysis. Common problems include infection, blockage from clotting, and poor blood flow. These problems can keep your treatments from working. You may need to undergo repeated surgeries in order to get a properly functioning access.

Other problems can be caused by rapid changes in your body's water and chemical balance during treatment. Muscle cramps and hypotension-a sudden drop in blood pressure-are two common side effects. Hypotension can make you feel weak, dizzy, or sick to your stomach.

You'll probably need a few months to adjust to hemodialysis. Side effects can often be treated quickly and easily, so you should always report them to your doctor and dialysis staff. You can avoid many side effects if you follow a proper diet, limit your liquid intake, and take your medicines as directed.

Diet for Hemodialysis

Hemodialysis and a proper diet help reduce the wastes that build up in your blood. A dietitian is available at all dialysis centers to help you plan meals according to your doctor's orders. When choosing foods, remember to

For more information about choosing the right foods, see the NIDDK booklet Eat Right to Feel Right on Hemodialysis.

Pros and Cons

Each person responds differently to similar situations. What may be a negative factor for one person may be a positive one for another. See a list of the general advantages and disadvantages of in-center and home hemodialysis below.

In-Center Hemodialysis

Pros

Cons

Home Hemodialysis

Pros

Cons

Working With Your Health Care Team

Questions you may want to ask:

Treatment Choice: Peritoneal Dialysis

Purpose

Peritoneal dialysis is another procedure that removes wastes, chemicals, and extra water from your body. This type of dialysis uses the lining of your abdomen, or belly, to filter your blood. This lining is called the peritoneal membrane and acts as the artificial kidney.

How Peritoneal Dialysis Works

A mixture of minerals and sugar dissolved in water, called dialysis solution, travels through a catheter into your belly. The sugar-called dextrose-draws wastes, chemicals, and extra water from the tiny blood vessels in your peritoneal membrane into the dialysis solution. After several hours, the used solution is drained from your abdomen through the tube, taking the wastes from your blood with it. Then your abdomen is refilled with fresh dialysis solution, and the cycle is repeated. The process of draining and refilling is called an exchange.

Getting Ready

Before your first treatment, a surgeon places a catheter into your abdomen or chest. The catheter tends to work better if there is adequate time-usually from 10 days to 2 or 3 weeks-for the insertion site to heal. Planning your dialysis access can improve treatment success. This catheter stays there permanently to help transport the dialysis solution to and from your abdomen.

Types of Peritoneal Dialysis

Three types of peritoneal dialysis are available.

  1. Continuous Ambulatory Peritoneal Dialysis (CAPD)
    CAPD requires no machine and can be done in any clean, well-lit place. With CAPD, your blood is always being cleaned. The dialysis solution passes from a plastic bag through the catheter and into your abdomen, where it stays for several hours with the catheter sealed. The time period that dialysis solution is in your abdomen is called the dwell time. Next, you drain the dialysis solution into an empty bag for disposal. You then refill your abdomen with fresh dialysis solution so the cleaning process can begin again. With CAPD, the dialysis solution stays in your abdomen for a dwell time of 4 to 6 hours, or more. The process of draining the used dialysis solution and replacing it with fresh solution takes about 30 to 40 minutes. Most people change the dialysis solution at least four times a day and sleep with solution in their abdomens at night. With CAPD, it's not necessary to wake up and perform dialysis tasks during the night.

  2. Continuous Cycler-assisted Peritoneal Dialysis (CCPD)
    CCPD uses a machine called a cycler to fill and empty your abdomen three to five times during the night while you sleep. In the morning, you begin one exchange with a dwell time that lasts the entire day. You may do an additional exchange in the middle of the afternoon without the cycler to increase the amount of waste removed and to reduce the amount of fluid left behind in your body.

  3. Combination of CAPD and CCPD
    If you weigh more than 175 pounds or if your peritoneum filters wastes slowly, you may need a combination of CAPD and CCPD to get the right dialysis dose. For example, some people use a cycler at night but also perform one exchange during the day. Others do four exchanges during the day and use a minicycler to perform one or more exchanges during the night. You'll work with your health care team to determine the best schedule for you.

Who Performs Peritoneal Dialysis

Both types of peritoneal dialysis are usually performed by the patient without help from a partner. CAPD is a form of self-treatment that needs no machine. However, with CCPD, you need a machine to drain and refill your abdomen.

Possible Complications

The most common problem with peritoneal dialysis is peritonitis, a serious abdominal infection. This infection can occur if the opening where the catheter enters your body becomes infected or if contamination occurs as the catheter is connected or disconnected from the bags. Infection is less common in presternal catheters, which are placed in the chest. Peritonitis requires antibiotic treatment by your doctor.

To avoid peritonitis, you must be careful to follow procedures exactly and learn to recognize the early signs of peritonitis, which include fever, unusual color or cloudiness of the used fluid, and redness or pain around the catheter. Report these signs to your doctor or nurse immediately so that peritonitis can be treated quickly to avoid additional problems.

Diet for Peritoneal Dialysis

A peritoneal dialysis diet is slightly different from an in-center hemodialysis diet.

Your doctor and a dietitian who specializes in helping people with kidney failure will be able to help you plan your meals.

Pros and Cons

Each type of peritoneal dialysis has advantages and disadvantages.

Peritoneal Dialysis

CAPD

Pros

Cons

CCPD

Pros

Cons

Working With Your Health Care Team

Questions you may want to ask:

Dialysis Is Not a Cure

Hemodialysis and peritoneal dialysis are treatments that help replace the work your kidneys did. These treatments help you feel better and live longer, but they don't cure kidney failure. Although patients with kidney failure are now living longer than ever, over the years kidney disease can cause problems such as heart disease, bone disease, arthritis, nerve damage, infertility, and malnutrition. These problems won't go away with dialysis, but doctors now have new and better ways to prevent or treat them. You should discuss these complications and their treatments with your doctor.

Treatment Choice: Kidney Transplantation

Purpose

Kidney transplantation surgically places a healthy kidney from another person into your body. The donated kidney does enough of the work that your two failed kidneys used to do to keep you healthy and symptom free.

How Kidney Transplantation Works

A surgeon places the new kidney inside your lower abdomen and connects the artery and vein of the new kidney to your artery and vein. Your blood flows through the donated kidney, which makes urine, just like your own kidneys did when they were healthy. The new kidney may start working right away or may take up to a few weeks to make urine. Unless your own kidneys are causing infection or high blood pressure, they are left in place.

Getting Ready

The transplantation process has many steps. First, talk with your doctor because transplantation isn't for everyone. You could have a condition that would make transplantation dangerous or unlikely to succeed.

You may receive a kidney from a deceased donor-a person who has recently died-or from a living donor. A living donor may be related or unrelated-usually a spouse or a friend. If you don't have a living donor, you're placed on a waiting list for a deceased donor kidney. The wait for a deceased donor kidney can be several years.

The transplant team considers three factors in matching kidneys with potential recipients. These factors help predict whether your body's immune system will accept the new kidney or reject it.

The Time Kidney Transplantation Takes

How long you'll have to wait for a kidney varies. Because there aren't enough deceased donors for every person who needs a transplant, you must be placed on a waiting list. However, if a voluntary donor gives you a kidney, the transplant can be scheduled as soon as you're both ready. Avoiding the long wait is a major advantage of living donation.

The surgery takes 3 to 4 hours. The usual hospital stay is about a week. After you leave the hospital, you'll have regular follow-up visits.

In a living donation, the donor will probably stay in the hospital about the same amount of time. However, a new technique for removing a kidney for donation uses a smaller incision and may make it possible for the donor to leave the hospital in 2 to 3 days.

Between 85 and 90 percent of transplants from deceased donors are working 1 year after surgery. Transplants from living relatives often work better than transplants from unrelated or deceased donors because they're usually a closer match.

Possible Complications

Transplantation is the closest thing to a cure. But no matter how good the match, your body may reject your new kidney. A common cause of rejection is not taking medication as prescribed.

Your doctor will give you medicines called immunosuppressants to help prevent your body's immune system from attacking the kidney, a process called rejection. You'll need to take immunosuppressants every day for as long as the transplanted kidney is functioning. Sometimes, however, even these medicines can't stop your body from rejecting the new kidney. If this happens, you'll go back to some form of dialysis and possibly wait for another transplant.

Immunosuppressants weaken your immune system, which can lead to infections. Some medicines may also change your appearance. Your face may get fuller; you may gain weight or develop acne or facial hair. Not all patients have these problems, though, and diet and makeup can help.

Immunosuppressants work by diminishing the ability of immune cells to function. In some patients, over long periods of time, this diminished immunity can increase the risk of developing cancer. Some immunosuppressants can cause cataracts, diabetes, extra stomach acid, high blood pressure, and bone disease. When used over time, these drugs may also cause liver or kidney damage in a few patients.

Diet for Kidney Transplantation

Diet for transplant patients is less limited than it is for dialysis patients, although you may still have to cut back on some foods. Your diet will probably change as your medicines, blood values, weight, and blood pressure change.

Pros and Cons

Kidney transplantation has advantages and disadvantages. See the list below.

Kidney Transplantation

Pros

Cons

Working With Your Health Care Team

Questions you may want to ask:

Treatment Choice: Refusing or Withdrawing from Treatment

For many people, dialysis and transplantation not only extend life but also improve quality of life. For others who have serious ailments in addition to kidney failure, dialysis may seem a burden that only prolongs suffering. You have the right to refuse or withdraw from dialysis. You may want to speak with your spouse, family, religious counselor, or social worker as you make this decision.

If you withdraw from dialysis treatments or refuse to begin them, you may live for a few days or for several weeks, depending on your health and your remaining kidney function. Your doctor can give you medicines to make you more comfortable during this time. You may start or resume your treatments if you change your mind about refusing dialysis.

Even if you're satisfied with your quality of life on dialysis, you should think about circumstances that might make you want to stop dialysis treatments. At some point in a medical crisis, you might lose the ability to express your wishes to your doctor. An advance directive is a statement or document in which you give instructions either to withhold treatment or to provide it, depending on your wishes and the specific circumstances.

An advance directive may be a living will, a document that details the conditions under which you would want to refuse treatment. You may state that you want your health care team to use all available means to sustain your life. Or you may direct that you be withdrawn from dialysis if you become permanently unresponsive or fall into a coma from which you won't awake. In addition to dialysis, other life-sustaining treatments you may choose or refuse include

Another form of advance directive is called a durable power of attorney for health care decisions or a health care proxy. In this type of advance directive, you assign a person to make health care decisions for you if you become unable to make them for yourself. Make sure the person you name understands your values and is willing to follow through on your instructions.

Each state has its own laws governing advance directives. You can obtain a form for an advance medical directive that's valid in your state from the National Hospice and Palliative Care Organization (see For More Information).

Paying for Treatment of Kidney Failure

Treatment for kidney failure is expensive, but Medicare and Medicaid pay much of the cost, usually up to 80 percent. Often, private insurance or state programs pay the rest.

Points to Remember