Living Donor Kidney Transplant: Matching, Surgery, and Donor Follow-Up

A living donor kidney transplant can offer people with kidney failure a planned transplant using a kidney from a healthy, carefully evaluated donor. This guide explains matching, surgery, recovery, and the long-term follow-up that helps protect both recipient and donor health.

Overview

A living donor kidney transplant is a treatment for kidney failure in which a healthy person donates one kidney to someone who needs a transplant. Because most people are born with two kidneys and can live well with one functioning kidney, living donation may be possible when the donor is carefully selected and fully informed.

Compared with waiting for a deceased donor kidney, living donor transplantation can often be planned in advance. This may reduce time on dialysis or, in some cases, allow a transplant before dialysis is needed. A living donor kidney may also start working quickly after surgery, although outcomes depend on many medical factors.

The process is designed to protect both people involved. The recipient is assessed to confirm that transplant is appropriate, while the donor undergoes a separate evaluation focused on donor safety, voluntariness, and long-term health. Donation should never proceed unless the donor understands the benefits, risks, alternatives, and follow-up responsibilities.

Who Can Be a Living Kidney Donor?

A living kidney donor may be a close relative, spouse, partner, friend, or, in some systems, an altruistic donor who wishes to donate to someone they do not know. A biological relationship is not required, but compatibility and donor safety are essential. The donor must be an adult who can make an informed decision without pressure or financial coercion.

Potential donors are evaluated for general health, kidney function, blood pressure, diabetes risk, heart and lung health, infections, cancer history, and anatomical suitability. The team also reviews family medical history, pregnancy history when relevant, lifestyle factors, mental health, and social support. The purpose is not only to decide whether the kidney can be transplanted, but also whether donation is appropriate for the donor over a lifetime.

Common reasons a person may not be accepted as a donor include reduced kidney function, significant uncontrolled high blood pressure, diabetes, active cancer, certain infections, or medical conditions that increase surgical risk. Some findings require additional testing rather than immediate exclusion. If donation is not recommended, the decision is made to protect the potential donor’s health.

Kidney Donor Matching and Compatibility

Kidney transplant matching helps the transplant team understand how the recipient’s immune system may react to the donated kidney. A good match can lower the risk of rejection, but a perfect match is not always necessary for a successful transplant. The transplant team interprets the full clinical picture rather than relying on one test alone.

Key compatibility tests usually include blood type testing, human leukocyte antigen testing, antibody screening, and crossmatch testing. Blood type compatibility helps determine whether the recipient can safely receive the donor kidney. Human leukocyte antigens, often called HLA markers, are tissue markers that the immune system can recognize. Antibody testing checks whether the recipient has antibodies that could attack the donor kidney.

A crossmatch test is especially important. It mixes recipient blood with donor cells in a laboratory to look for a reaction. A positive crossmatch may mean the recipient is at higher risk of immediate rejection, while a negative crossmatch is generally more favorable. Some transplant centers may consider special protocols for incompatible pairs, but these require careful risk assessment.

If a donor and recipient are not compatible, kidney paired donation may be an option in some programs. In paired donation, two or more donor-recipient pairs are matched so that each recipient receives a compatible kidney from another donor. This approach can help willing donors support their intended recipient even when they cannot donate directly.

Evaluation Before Surgery

The recipient’s pre-transplant evaluation focuses on readiness for surgery and the ability to benefit from transplant. It may include blood tests, imaging, heart assessment, infection screening, vaccination review, cancer screening appropriate for age and risk, and review of dialysis history if applicable. The team also assesses whether the recipient can safely take immunosuppressive medicines after surgery.

The donor evaluation is separate and confidential. Donors typically meet transplant nephrologists, surgeons, nurses, coordinators, and mental health or social work professionals. Imaging studies, such as CT angiography or similar scans, help map kidney blood vessels and anatomy so the surgical team can choose which kidney is safest to remove.

Psychosocial evaluation is a central part of living donation. The donor should understand that donation is voluntary and that they may withdraw at any stage. The team discusses emotional expectations, family dynamics, work and recovery planning, insurance or travel considerations, and the possibility that the transplant may not function as hoped despite appropriate care.

Before surgery, both donor and recipient receive detailed instructions about medicines, fasting, infection prevention, and hospital admission. Timing is coordinated so the kidney can be removed from the donor and transplanted into the recipient promptly. This planning is one of the advantages of living donor transplantation.

Living Donor Kidney Surgery

Living donor kidney removal is called donor nephrectomy. In many centers, it is performed using laparoscopic or robotic-assisted techniques, which use small incisions and a camera to guide surgery. Some donors may need an open operation depending on anatomy, previous surgery, or safety considerations. The surgical approach is chosen to minimize risk while preserving the quality of the kidney for transplant.

During donor surgery, the surgeon carefully frees one kidney along with its blood vessels and ureter, the tube that carries urine from the kidney to the bladder. Once removed, the kidney is flushed with a preservation solution and transferred to the recipient operating room. Donor safety remains the priority throughout the operation.

The recipient surgery is usually performed in the lower abdomen. The donated kidney’s blood vessels are connected to the recipient’s pelvic blood vessels, and the ureter is connected to the bladder. The recipient’s own kidneys are often left in place unless there is a specific medical reason to remove them.

As with any major surgery, risks can include bleeding, infection, blood clots, reactions to anesthesia, pain, hernia, or complications involving nearby organs. For recipients, additional concerns include delayed kidney function, urine leakage, narrowing of the ureter, and rejection. The transplant team explains individualized risks before consent is given.

Recovery for Donors and Recipients

After surgery, donors are monitored for pain control, wound healing, urine output, blood pressure, and kidney function. Many donors begin walking soon after surgery as part of recovery and blood clot prevention. Hospital stay and return to normal activities vary, but donors are usually advised to avoid heavy lifting and strenuous activity until cleared by their surgeon.

Recipients are monitored closely for kidney function, urine output, fluid balance, blood pressure, and signs of rejection or infection. Blood tests are frequent at first. Immunosuppressive medicines are started to help prevent the immune system from attacking the donated kidney. These medicines must be taken exactly as prescribed and should not be stopped without medical advice.

Recovery also includes education. Recipients learn how to take medicines, recognize warning symptoms, attend follow-up visits, and reduce infection risk. Donors receive guidance on wound care, safe activity, hydration, pain medicine use, and follow-up testing. Both donor and recipient may benefit from emotional support, especially if the transplant journey has been long or stressful.

Long-Term Donor Follow-Up and Self-Care

Most carefully selected living kidney donors do well with one kidney, because the remaining kidney adapts over time. However, donation is not considered risk-free. Long-term follow-up is important because it allows early detection of high blood pressure, reduced kidney function, or protein in the urine. These issues can often be managed more effectively when found early.

Donors are commonly advised to have periodic checks of blood pressure, serum creatinine or estimated glomerular filtration rate, and urine protein. Follow-up schedules vary by country and transplant program, but donors should continue routine primary care for life. They should also tell future doctors that they have one kidney, especially before starting new medicines or undergoing major medical treatment.

Healthy lifestyle habits help protect the remaining kidney. Donors are generally encouraged to maintain a healthy weight, avoid smoking, stay physically active, use pain medicines responsibly, and manage conditions such as high blood pressure promptly. Nonsteroidal anti-inflammatory drugs may not be suitable for some people with one kidney, so medication choices should be discussed with a clinician.

For international patients, follow-up planning should be arranged before travel home. Acibadem International’s multidisciplinary transplant specialists and JCI-accredited hospitals diagnose and treat kidney transplant patients, and they can help coordinate post-transplant and donor follow-up plans with local physicians when appropriate.

When to See a Doctor

A person with advanced chronic kidney disease should speak with a nephrologist about all treatment options, including dialysis, deceased donor transplant, and living donor transplant. Early discussion can provide more time for evaluation, education, and possible donor assessment. People should not wait until they feel severely unwell to ask about transplant eligibility.

After donation or transplant, medical advice should be sought promptly for fever, worsening pain, redness or drainage from an incision, shortness of breath, leg swelling, reduced urine output, vomiting that prevents medicine intake, or a sudden rise in blood pressure. Recipients should also report missed doses of immunosuppressive medicine or symptoms that may suggest infection or rejection.

Potential donors should consult an independent transplant team before making a decision. They should feel free to ask about short-term surgical risks, long-term kidney health, pregnancy considerations, work and travel timing, and the possibility of withdrawing. A well-informed decision supports both donor safety and recipient care.

Frequently asked questions

Can a person live a normal life with one kidney after donation?

Many carefully selected donors live healthy, active lives with one kidney. The remaining kidney usually adapts to handle the body’s needs. However, donors should have lifelong health monitoring, including blood pressure, kidney function, and urine protein checks.

Does a living donor need to be a family member?

No. A living kidney donor can be a relative, spouse, friend, or sometimes an altruistic donor, depending on the transplant program and local regulations. Compatibility and donor safety are more important than whether the donor is biologically related.

What happens if the donor and recipient are not compatible?

If blood type or antibody testing shows incompatibility, direct donation may not be possible or may carry higher risk. Some programs offer kidney paired donation, where incompatible pairs are matched with other pairs so recipients can receive more compatible kidneys. In selected cases, special desensitization approaches may be considered.

How long does recovery take after living kidney donation?

Recovery varies depending on the surgical technique, the donor’s health, and the type of work or activities they plan to resume. Many donors return gradually to routine daily activities after the early recovery period, but heavy lifting and strenuous exercise should wait until the surgeon gives approval.

Will the recipient need medicines after transplant?

Yes. Kidney transplant recipients need lifelong immunosuppressive medicines to reduce the risk of rejection. These medicines require regular monitoring because they can affect infection risk, kidney function, blood pressure, blood sugar, and other aspects of health.

Is living kidney donation completely risk-free?

No surgical procedure is completely risk-free. Living kidney donation involves short-term surgical risks and possible long-term health considerations, even though donors are carefully screened. A transplant team should explain the individual risks and alternatives before any decision is made.

How should donors protect their remaining kidney?

Donors should attend follow-up visits, monitor blood pressure, maintain a healthy lifestyle, and seek care promptly for medical problems. They should tell healthcare professionals that they have one kidney, especially before taking new medicines or undergoing procedures. Medication use, including common pain relievers, should be discussed with a doctor when needed.

References

• World Health Organization
• National Kidney Foundation
• American Society of Transplantation
• Kidney Disease: Improving Global Outcomes
• European Renal Association

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.