R.E.N.A.L. nephrometry score predicts treatment efficacy

R.E.N.A.L. nephrometry score predicts treatment efficacy
The R.E.N.A.L. (radius, exophytic/endophytic, nearness to collecting system or sinus, anterior/posterior and location relative to polar lines) nephrometry scoring system predicts the efficacy of treatment and major complications that occur after percutaneous renal ablation for treatment of tumors, according to research published in the January issue of The Journal of Urology.

(HealthDay)—The R.E.N.A.L. (radius, exophytic/endophytic, nearness to collecting system or sinus, anterior/posterior and location relative to polar lines) nephrometry scoring system predicts the efficacy of treatment and major complications that occur after percutaneous renal ablation for treatment of tumors, according to research published in the January issue of The Journal of Urology.

Grant D. Schmit, M.D., of the Mayo Clinic in Rochester, Minn., and colleagues applied the R.E.N.A.L. criteria to 751 renal tumors in 627 patients to examine the correlation with oncological outcomes and complications after percutaneous ablation. Fifty-seven percent of tumors were treated with cryoablation and 43 percent were treated with radio frequency ablation.

The researchers found that the mean score for renal tumors treated with was significantly higher than for those treated with radio frequency ablation (7.2 ± 1.9 versus 6.1 ± 1.8). Over an average follow-up period of 27.9 months, 28 local treatment failures occurred. R.E.N.A.L. nephrometry score was significantly associated with local , with a mean score of 7.6 ± 2.2 in cases of failure versus 6.7 ± 1.9 in cases without failure. R.E.N.A.L. score was also significantly associated with major complications, with a mean score of 8.1 ± 2.0 in cases with a major complication versus 6.8 ± 1.9 in cases without a major complication.

"The R.E.N.A.L. nephrometry predicts oncological outcomes and complications following percutaneous renal ablation," the authors write. "As such, this tool may be used to facilitate the standardization of comparisons of treatment efficacy and safety across various approaches to small renal tumors."

One author disclosed to the medical device and technology industries.

More information: Abstract
Full Text

add to favorites email to friend print save as pdf

Related Stories

Recommended for you

Poll: Many doubt hospitals can handle Ebola

1 hour ago

A new poll finds most Americans have some confidence that the U.S. health care system will prevent Ebola from spreading in this country, but they're not so sure their local hospital can safely handle a patient.

Number of Ebola cases nears 10,000

1 hour ago

The number of people with Ebola is set to hit 10,000 in West Africa, the World Health Organization said, as the scramble to find a cure gathered pace.

'Breath test' shows promise for diagnosing fungal pneumonia

2 hours ago

Many different microbes can cause pneumonia, and treatment may be delayed or off target if doctors cannot tell which bug is the culprit. A novel approach—analyzing a patient's breath for key chemical compounds made by the ...

Where Ebola battles are won

11 hours ago

(HealthDay)—Four hospitals that are home to advanced biocontainment facilities have become America's ground zero in the treatment of Ebola patients.

User comments