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PUBLIC RELEASE DATE:
25-Mar-2010

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Contact: Shari Leventhal
sleventhal@asn-online.org
202-416-0658
American Society of Nephrology
@ASNKidney

Most kidney transplant candidates will accept risk of infection

The majority of patients would accept a kidney from a donor at increased risk of viral infection

Most kidney transplant candidates are willing to receive a kidney from a donor at increased risk of viral infection, according to a study appearing in an upcoming issue of the Clinical Journal of the American Society Nephrology (CJASN). The results suggest that kidney disease patients can make rational tradeoffs between the virtues and risks conferred by donated kidneys.

Because thousands of patients die each year in the United States while waiting for a kidney transplant, greater efforts are needed to expand the pool of kidneys for transplantation. These efforts might include allowing patients to receive less-than-ideal organs, for example from deceased individuals at increased risk of viral infection. In these cases, patients must weigh the advantages of getting a transplant against the small risk of getting a serious infection such as HIV. The average dialysis patient has a 20% chance of dying annually, similar to the death rate from metastatic cancer. Therefore patients may decide that it's better to accept an organ from a donor at increased risk of viral infection than to remain on dialysis.

Peter Reese, MD, Scott Halpern MD, PhD (University of Pennsylvania) and their colleagues conducted a study to determine what proportion of kidney transplant candidates would accept a kidney from a donor at increased risk of viral infection. They also examined what factors influenced this decision.

The investigators studied 175 kidney transplant candidates who responded to hypothetical scenarios that tested their willingness to accept a kidney from a donor at higher risk of viral infection. Each scenario varied the donor age (as a substitute for kidney quality), the risk of contracting HIV and the waiting time until the next offer of a kidney transplant. Among 175 respondents, 42 (24.0%) rejected kidneys from donors at increased risk of viral infections under all conditions, 103 (58.9%) accepted them under some conditions, and 31 (17.7%) always accepted them. Patients were more likely to accept a kidney from donors at increased risk of viral infections when the donor was younger, HIV risk was lower, and when the waiting time was longer. Also, patients on dialysis and older patients more commonly accepted such kidneys.

Increasing the use of kidneys from donors at increased risk of viral infections could improve access to kidney transplantation only if transplant candidates are willing to accept these organs. "Our study shows that the majority of kidney transplant candidates would accept the tradeoff some of the time - that is, they would accept a kidney transplant even if the risk of HIV infection was slightly elevated," said Dr. Reese.

According to the authors, transplant physicians should talk with their patients about the possibility of receiving organs from donors at increased risk of viral infections without fearing that such conversations will undermine the ability to place these organs.

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Study co-authors include Tara Tehrani, MD, MaryAnn Lim, MD, David Asch, MD, Emily Blumberg, MD, Maureen Simon, RN and Roy Bloom, MD (University of Pennsylvania).

The authors reported no financial disclosures.

The article, entitled "Determinants of the Decision to Accept a Kidney from a Donor at Increased Risk for Blood-Borne Viral Infection," will appear online at http://cjasn.asnjournals.org/ on March 25, 2010, doi 10.2215/CJN.08251109.

The content of this article does not reflect the views or opinions of The American Society of Nephrology (ASN). Responsibility for the information and views expressed therein lies entirely with the author(s). ASN does not offer medical advice. All content in ASN publications is for informational purposes only, and is not intended to cover all possible uses, directions, precautions, drug interactions, or adverse effects. This content should not be used during a medical emergency or for the diagnosis or treatment of any medical condition. Please consult your doctor or other qualified health care provider if you have any questions about a medical condition, or before taking any drug, changing your diet or commencing or discontinuing any course of treatment. Do not ignore or delay obtaining professional medical advice because of information accessed through ASN. Call 911 or your doctor for all medical emergencies.

Founded in 1966, the American Society of Nephrology (ASN) is the world's largest professional society devoted to the study of kidney disease. Comprised of 11,000 physicians and scientists, ASN continues to promote expert patient care, to advance medical research, and to educate the renal community. ASN also informs policymakers about issues of importance to kidney doctors and their patients. ASN funds research, and through its world-renowned meetings and first-class publications, disseminates information and educational tools that empower physicians.



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