( Performing less invasive laparoscopic s...)Robotic Surgery May Improve Survival Rate For Prostate Cancer Patients,Health

Performing less invasive laparoscopic surgery using robotic technology may improve survival rates for prostate cancer patients, according to a study by Thomas Jefferson University Hospitals multidisciplinary Genitourinary (GU) cancer center.

In a study presented May 21, 2007 at the annual American Urological Society meeting in Anaheim, Calif., the Jefferson urologists found that performing a laparoscopic radical prostatectomy (LRP) with robot technology can reduce positive surgical margins. Positive surgical margins refers to when cancer, seen under a microscope, goes to the edge of a specimen, meaning that cancerous cells likely remain in the patient. LRP is the surgical removal of the entire prostate gland and surrounding tissue including the seminal vessels through several tiny incisions.

We demonstrated a significant improvement in the positive surgical margin rate with the addition of robotics to an established LRP, said Costas Lallas, M.D., assistant professor of Urology, Jefferson Medical College of Thomas Jefferson University, one of the investigators.Dr. Lallas completed a robotic surgery fellowship at the Mayo Clinic.

Several large studies have demonstrated that a positive surgical margin increases the chances that the prostate-specific antigen (PSA)- a protein produced by the cells of the prostate gland - will rise after surgery, and increase the chances that the disease will reoccur and progress, said Edouard Trabulsi, M.D., assistant professor of Urology, Jefferson, a urologic oncologist and an expert trained in laparoscopic prostatectomy by one of the pioneers of the technique. Therefore, any intervention or technique to lower positive surgical margins, we think, will translate into a better long-term cure rate.

The study demonstrates that even in a high volume center with an established laparoscopic radical prostatectomy program, which has been in place at Jefferson since 2000, the addition of
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