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Last Updated: Oct 11, 2012 - 10:22:56 PM
Research Article
Nephrology Channel

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Latest Research : Nephrology

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Normograms to predict long-term outcomes in renal transplants

Jan 24, 2009 - 4:43:01 PM , Reviewed by: Dr. Sanjukta Acharya

 
[RxPG] Kidney transplants are the best available therapy for end stage renal disease. Because of the shortage of deceased organ donors, living donor transplantation is rapidly growing and has the advantage of improved outcomes over deceased donor transplants. In fact, a transplant candidate may now have several potential living donors and the clinician may need to identify which donor would yield the best results. In a study published in the March 2009 issue of The Journal of Urology, researchers report on the development and validation of three nomograms that can reliably predict long-term outcomes.

A nomogram is an objective tool that uses an algorithm or mathematical formula to predict the probability of an outcome. Nomograms have been shown to outperform clinicians in predicting oncological outcomes and may be of benefit in certain decision-making settings. Nomograms can sift through the multitude of donor and recipient parameters that impact transplant outcome and help transplant physicians to better counsel their patients.

Using records from over 20,000 living donor transplant cases taken from the United Network for Organ Sharing (UNOS) registry, investigators from the Renal Transplantation Program, Glickman Urological & Kidney Institute at the Cleveland Clinic identified 18 characteristics, such as donor and recipient ages, donor serum creatinine levels and the cause of the recipient's renal failure. By using the value of each factor to determine a point score and totaling all of the points, the nomograms were able to predict kidney function 1 year after transplant and 5-year transplant survival. By adding 3 additional factors obtained 6 months after surgery, another nomogram was developed to refine the 5-year survival prediction.

Writing in the article, D. A. Goldfarb states, "Our work is consistent with the transplant physician community's efforts to develop better predictive tools...the nomograms developed in this study take this effort a step further by using a greater number of variables including early posttransplant information for better predictability and by attempting to predict specific outcome measures of renal function in addition to long term graft survival... These models can help to optimize the selection of living kidney donors. The prognostic information these models provide can help improve patient care."



Publication: The Journal of Urology

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 About Dr. Sanjukta Acharya
This news story has been reviewed by Dr. Sanjukta Acharya before its publication on RxPG News website. Dr. Sanjukta Acharya, MBBS MRCP is the chief editor for RxPG News website. She oversees all the medical news submissions and manages the medicine section of the website. She has a special interest in nephrology. She can be reached for corrections and feedback at sanjukta.acharya@rxpgnews.com
RxPG News is committed to promotion and implementation of Evidence Based Medical Journalism in all channels of mass media including internet.
 Additional information about the news article
The article is "Nomograms for Predicting Graft Function and Survival in Living Donor Kidney Transplantation Based on the UNOS Registry" by H.Y. Tiong, D.A. Goldfarb, M.W. Kattan, J.M. Alster, L. Thuita, C. Yu, A. Wee and E.D. Poggio. It appears in The Journal of Urology, Volume 181, Issue 3 (March 2009) published by Elsevier.
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For any corrections of factual information, to contact the editors or to send any medical news or health news press releases, use feedback form

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