The effect of frozen kidney tumors is comparable to laparoscopy

Release date: 2007-04-10

A groundbreaking study from the University of Wisconsin School of Medicine in Madison, USA, has revealed that freezing kidney tumors using image-guided cryoablation is just as effective as traditional laparoscopic surgery. The research, presented at the 32nd Annual Meeting of the Society of Interventional Radiology in Seattle, WA, in March 2007, compared two minimally invasive techniques for treating kidney tumors.

In the study, researchers evaluated 19 patients who underwent percutaneous cryoablation and 48 who had laparoscopic treatment. During the procedure, an interventional radiologist used imaging technology to locate the tumor and then inserted a cryoprobe through the skin. Argon gas was released into the probe, creating an "ice ball" that froze and destroyed the cancerous tissue. This method offers a less invasive alternative with fewer complications and shorter recovery times.

The results showed that the recurrence rate was slightly lower after cryoablation (12.5%) compared to laparoscopic surgery (10.5%). Patients also experienced shorter hospital stays and significantly reduced costs—over 59% less than laparoscopic treatment. Additionally, there were no major complications reported in the cryoablation group.

While the procedure can be performed under general anesthesia, it is often done with local anesthesia and conscious sedation, making it more comfortable for many patients. These findings suggest that cryoablation could become a preferred option for certain kidney tumor cases, especially for those seeking a less aggressive treatment approach. As medical technology continues to advance, such innovative methods are paving the way for safer and more efficient care.

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