Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Extreme heat effective in treating some kidney cancers

08.05.2003


Image-guided radiofrequency ablation -- using heat to destroy cancers -- can preserve kidney function and avoid kidney dialysis for patients with solid renal tumors who are not surgical candidates, a new study indicates.



“We have been able to successfully destroy 50 out of 51 renal tumors in 32 patients,” says Michael Farrell, MD, consultant radiologist at Mayo Clinic in Rochester, MN, and the lead author of the study.

The easiest tumors to treat with radiofrequency ablation are those that are “growing on the outer surface of the kidney because surrounding fat insulates the tumor and insures the necessary temperatures can be acquired in order to achieve tumor cell destruction,” says Dr. Farrell. Centrally located tumors are more difficult to successfully treat, he says.


“We have followed the patients for between 1 and 27 months, and none of them have had cancer recurrence on imaging,” says Dr. Farrell. “We can potentially re-treat patients with radiofrequency ablation if their cancer returns,” he adds.

“The success rate is encouraging, but our follow-up time is relatively short. “This is not an alternative to definite surgical resection, but is an option for patients with decreased renal function, including those who’ve had a prior nephrectomy,” Dr. Farrell says. “Our aim would be to preserve renal function and avoid dialysis.” It is also an option for patients with coexisting medical morbidities which make them unsuitable for surgery, he says.

There is a low incidence of side effects in treatment, adds Dr. Farrell. Minor complications (in four patients) included pain, development of small fluid collection, and bleeding, all of which resolved themselves, he says. Major complications (in two patients) included damage to a small artery, which in turn destroyed a small area in the kidney, and heat damage to a nerve which has led to chronic, but gradually resolving, pain in the patient.

“We are seeing an increase in the number of renal tumors, especially in elderly patients. New imaging methods are detecting them incidentally, that is, patients are coming in for a radiologic examination for another reason, and the renal tumor is being found,” says Dr. Farrell. Ablation is a treatment option for these patients if they are not surgical candidates or have poor renal function, he says.


Dr. Farrell will present his study on May 8 during the American Roentgen Ray Society Annual Meeting in San Diego.

Contact: Keri J. Sperry (703) 858-4306
Danica Laub (703) 858-4332
Press Room: (619) 525-6536 (May 5-8)

Keri Sperry | EurekAlert!
Further information:
http://www.arrs.org/

More articles from Health and Medicine:

nachricht Another reason to exercise: Burning bone fat -- a key to better bone health
19.05.2017 | University of North Carolina Health Care

nachricht Disrupted fat breakdown in the brain makes mice dumb
19.05.2017 | Rheinische Friedrich-Wilhelms-Universität Bonn

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

Im Focus: Using graphene to create quantum bits

In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.

In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...

Im Focus: Bacteria harness the lotus effect to protect themselves

Biofilms: Researchers find the causes of water-repelling properties

Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...

Im Focus: Hydrogen Bonds Directly Detected for the First Time

For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope. Researchers from the University of Basel’s Swiss Nanoscience Institute network have reported the results in the journal Science Advances.

Hydrogen is the most common element in the universe and is an integral part of almost all organic compounds. Molecules and sections of macromolecules are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

Innovation 4.0: Shaping a humane fourth industrial revolution

17.05.2017 | Event News

Media accreditation opens for historic year at European Health Forum Gastein

16.05.2017 | Event News

 
Latest News

New approach to revolutionize the production of molecular hydrogen

22.05.2017 | Materials Sciences

Scientists enlist engineered protein to battle the MERS virus

22.05.2017 | Life Sciences

Experts explain origins of topographic relief on Earth, Mars and Titan

22.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>