Pancreas-Kidney Transplants and Kidney-Only Transplants: What the Research Shows About Outcomes

For people with Type 1 diabetes whose kidneys have failed, transplantation offers a lifesaving option. There are two main surgical approaches: receiving both a pancreas and a kidney from a donor (simultaneous pancreas-kidney transplantation), or receiving only a kidney transplant while managing blood sugar with insulin. Researchers wanted to understand how these two approaches compare in terms of long-term metabolic health and complications.

Scientists reviewed 15 published studies involving 564 people who received pancreas-kidney transplants and 419 people who received kidney-only transplants. They looked at blood test results after surgery—including cholesterol, triglycerides, and blood sugar levels—and tracked whether patients developed heart or blood vessel complications. The studies they reviewed were observational (comparing groups of patients rather than randomized trials), which is the best evidence currently available for this question.

The analysis found that pancreas-kidney transplant recipients had lower total cholesterol and triglyceride levels after surgery compared to kidney-only recipients. Both groups showed improvements in blood sugar control after transplant, but those who received a pancreas had better HbA1c levels—a key measure of long-term blood sugar management.

Blood pressure control and kidney function were also tracked across the studies, providing a fuller picture of metabolic health in both groups.

Pancreas-kidney transplant recipients experienced fewer new or worsening heart and blood vessel problems, including coronary artery disease, stroke-related complications, and peripheral vascular disease, compared to kidney-only recipients. These findings suggest that improved blood sugar and cholesterol control after pancreas-kidney transplantation may reduce long-term cardiovascular risk.

This research provides valuable insights for people with Type 1 diabetes facing kidney failure and considering transplant options. While pancreas-kidney transplants showed advantages in metabolic outcomes and cardiovascular complications, individual factors—such as age, overall health, and ability to undergo major surgery—play important roles in determining the best approach for each person. Anyone considering transplantation should discuss these findings with their transplant team, who can help weigh the benefits and risks for their specific situation.

Source: Diabetologia. Evidence type: PubMed indexed literature. Type1Cure is an information and intelligence hub, not a medical advice service. This article summarizes published research and does not provide diagnosis, treatment, or personal medical guidance. Always talk to your own care team before changing anything about your Type 1 diabetes management.