NEW YORK (Reuters Health) - Men who get robot surgery for
prostate cancer have fewer short-term complications than men whose
procedure is done the old-fashioned way - but the newer treatment is
pricier, according to a new analysis of close to 30,000 patients.
Although
the findings may help inform decisions about cancer surgery, a
gold-standard trial comparing the two methods of prostate removal
head-to-head is still lacking, researchers said.
"We don't
really have that high-level evidence... that can tell us that one is
better than the other, or how one is different than the other," said Dr.
Paul Nguyen, who treats prostate cancer at Brigham and Women's
Hospital in Boston.
For example, even if some complications such
as bleeding happen less frequently with robotic surgery, it's possible
men who get that procedure may have more sexual or urinary problems
further down the road.
Even without rigorous comparison data, the
da Vinci Surgical System, sold by Intuitive Surgical, has become
especially popular for prostate and gynecological surgeries in recent
years and is heavily advertised by hospitals that use it.
The new
study "makes us need to sit back and evaluate what we're getting for
the extra cost," Nguyen, who wasn't involved in the research, told
Reuters Health.
"If it's not better, or not better enough, it may not be worth it."
The robots run for an average of just under $1.5 million, not including the cost of long-term maintenance and extra parts.
Dr.
Simon Kim of the Mayo Clinic in Rochester, Minnesota and his colleagues
found the average prostate surgery done using a robot was billed at
about $10,400, including all hospital fees. That compared to an average
cost of just under $8,900 for standard so-called radical prostatectomy.
Data
came from two large hospital and patient surveys conducted in the
United States. In 2006 to 2008, about 20,400 men in those studies had
their prostates removed using robotic surgery and 9,400 had "open"
robot-free procedures.
Men typically stayed in the hospital for
one day after robotic surgery compared to two days after a standard
procedure. And post-op complication rates were eight percent in the
robotic group versus 11 percent in the standard surgery group, according
to findings published in the journal European Urology.
Dr. Yair
Lotan, a urologist from The University of Texas Southwestern Medical
Center in Dallas, said the findings are consistent with past results
that suggest small reductions in some prostate complications with
robotic surgery.
But, he told Reuters Health, "There haven't been
well-demonstrated advantages in terms of cancer outcomes or even quality
of life measures."
Studies have also found costs add up faster
for various types of robotic surgery than with standard surgery (see
Reuters Health story of August 22, 2012).
Angela Wonson, a
representative for Intuitive Surgical, pointed out some limitations to
the information included in the new research.
"Clinical benefit
to the patient must be at the center of any discussion of cost," she
told Reuters Health in an email. "Fewer complications and lower
readmission rates will decrease the overall cost burden to both patients
and the healthcare system. The costs of post-operative complications
and readmissions, which these data do not capture, are significant."
Nguyen
said that at this point, surgical method typically comes down to
patient preference. And it may not even be the most important decision
men make, he added.
"If a patient does need surgery, I wouldn't
choose just on the basis of the robot versus the open, but a lot more on
the surgeon, and the experience of the surgeon," Nguyen said.
SOURCE:
http://bit.ly/Qe7IEr European Urology, online August 20, 2012.