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Robot-assisted surgery for prostate cancer controls the disease for 10 years

  • - Urology / Nephrology News
  • Jul 17, 2014
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  • Viewed: 7634
  
Tags: | cancerous prostate glands | prostate cancer | rarp | robot-assisted radical prostatectomy |

Robot-assisted surgery to remove cancerous prostate glands is effective in controlling the disease for 10 years, according to a new study led by researchers at Henry Ford Hospital.

The study also suggested that traditional methods of measuring the severity and possible spread of the cancer together with molecular techniques might, with further research, help to create personalized, cost-effective treatment regimens for prostate cancer patients who undergo the surgical procedure.

The findings apply to men whose cancer has not spread beyond the prostate, and the results are comparable to the well-established and more invasive open surgery to remove the entire diseased prostate and some surrounding tissue.

The research study is published this month online in European Urology, the official journal of the European Association of Urology.

“Until our analysis, there was little available information on the long-term oncologic outcomes for patients who undergo robot-assisted radical prostatectomy, or RARP,” says Mireya Diaz, Ph.D., Director of Biostatistics at the Henry Ford’s Vattikuti Urology Institute (VUI) and lead author of the study.

“As one of the very first hospitals to establish a structured RARP program a little over a decade ago, we were able to determine the long-term effectiveness of the technique thanks to the continued feedback of our patients and the follow-up efforts of the VUI team,” Dr. Diaz adds.

Prostate cancer, a malignancy that develops in the prostate gland, is often treated successfully in its early stages with surgery. Surgeons who treat prostate cancer have twin goals: eradicating the patient’s cancer while safeguarding the nerves that govern urinary and sexual function. Surgeons with the most extensive experience performing robotic prostatectomy are more likely to achieve these goals.

Robotic prostatectomy, also know as robot-assisted laparoscopic prostatectomy, is the most advanced treatment option for patients who are candidates for surgery. Operating through five or six tiny holes in the abdomen, surgeons remove the cancerous tissue while preserving the vital nerves and arteries that control bladder and sexual function. This nerve sparing prostatectomy approach helps men retain their urinary control and sexual function.

In the hands of an experienced robotic surgeon, robotic prostatectomy offers patients a shorter hospital stay, less blood loss, significantly less pain, a faster recovery, improved urinary continence and sexual function, less scarring, and excellent clinical outcomes.

Robotic Prostatectomy with the da Vinci Robot

Surgeons here perform minimally invasive robotic prostatectomy procedures using a laparoscopic surgical robotic unit known as the da Vinci Surgical System. With da Vinci prostate surgery, miniaturized surgical instruments enable surgeons to manipulate tissue with great accuracy and remove the patient’s prostate gland while minimizing harm to the surrounding tissues. Da Vinci prostate surgery provides surgeons with significantly enhanced magnification of the surgical field, making it easier for them to see and avoid the important nerves that run through the prostate, reducing the risk of urinary incontinence and sexual dysfunction.

The researchers followed 483 consecutive men who had cancer that had not spread outside the prostate and received RARP as their first treatment. All cases were from 2001 to 2003, the earliest years of Henry Ford’s robot-assisted prostate surgery program.

Using several standard measures of cancer-treatment success - including biochemical markers of recurrence, incidence of metastasis or the spread of cancer beyond the prostate, and cancer-specific survival - the researchers found that 98.8 percent of the patients survived cancer for 10 years after their surgery.

Further analysis showed that the severity of the cancer after RARP was the best predictor of a recurrence, and the level of prostate-specific antigen, or PSA, in the bloodstream - which is now routinely measured as a test for the possible presence of prostate cancer - can be combined with severity to determine future treatment.

“Disease severity and postoperative PSA measurements can guide physicians in identifying the varying levels of cancer recurrence risk,” Dr. Diaz explains. “This includes those patients who can best benefit from secondary treatment as well as long-term monitoring.”

The study suggests that persistent PSA levels after RARP signals the risk that cancer may progress and soon require a second or salvage treatment of another kind. Lower risk patients after RARP warrant careful monitoring within five years after surgery and more protracted later, while those at higher risk may need follow-up monitoring beyond 10 years.
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Further research and the collection of consistent, solid evidence will allow the creation of more personalized regimens for cost-effective treatment following RARP, the study concluded.

Funding: Vattikuti Urology Institute

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Dwight Angell
.(JavaScript must be enabled to view this email address)
313-876-8709
Henry Ford Health System

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