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Patient
Information for Robotic-Assisted Laparoscopic Prostatectomy
The robotic-assisted laparoscopic radical prostatectomy was first reported in 2001. Since
that time, robotic prostatectomy has become one of the preferred methods for radical or total
removal of the cancerous prostate. Urology Specialists, P.C. is one of only a few
practices in the region that utilizes this technology using the da
VinciTM Surgical System from Intuitive Surgical,
Inc.® Here is how the procedure is completed:
Laparoscopy is performed by filling the
belly with carbon dioxide gas so that a working space can be created. Small incisions are
created through which instruments are passed. For prostate removal, 6 small incisions between
¼ and ½ inch are used. For the robotic prostatectomy, the robot holds 3
instruments and the camera. Once the surgeon and his assistant properly set the robot, he
then sits down at a robotic console from where the robotic arms are controlled using hand and
foot controls. A table side assistant surgeon helps by passing instruments and aiding in the
dissection.
This diagram illustrates the normal anatomy of the male reproductive system. The prostate and
seminal vesicles normally function to produce the fluid that is expelled during ejaculation.
In order to remove the prostate entirely, the prostate must be separated from the bladder
above and the urethra below. The seminal vesicles are removed along with the prostate. The
bladder is then sewn to the urethra and a catheter is left in the bladder to aid in healing of
the sewn area.
Robotic Versus Open Prostatectomy
The benefits of robotic prostatectomy are several-fold:
The average blood loss for
robotic prostatectomy is approximately 150 ml. Several series for open radical prostatectomy
report an average blood loss between 300-1000 ml. Hospital stay is usually overnight for the
robotic procedure compared to 2 to 3 days for the open procedure. Catheter time is usually 1 week.
Most people can return to work in 2-3 weeks after the robotic procedure while 4 to 6 weeks
is usually required after an open approach.
What to Expect
The usual course experienced by patients undergoing robotic prostatectomy is as follows:
The patient arrives in the hospital the day of the procedure. The procedure is then performed
and typically takes between 2 and 4 hours depending on the size of the prostate and the
difficulty of dissection. The patient then spends the first night in the hospital and is given
a regular diet and is encouraged to walk the night of the procedure. Discharge is planned for
the next morning and instructions are given for general postoperative and catheter care.
The patient is sent home with a prescription for a light narcotic oral medication. Many patients
do not require this and use only Tylenol or Ibuprofen. Patients should walk as much as possible
immediately. Stair climbing is acceptable. Patients should refrain from lifting more than
15 pounds for 3 weeks. Some patients do experience some constipation which can be remedied
by Milk of Magnesia or taking Colace pills.
The foley catheter is removed in the office
approximately one week after surgery. Pathology results are often available and can be discussed at this
visit. Patients are allowed to drive after their catheter is removed if they are no longer
taking any narcotic medications. Patients may then return to work within 2 to 3 weeks and
then can go back to unrestricted activity in 4 weeks.
Side Effects
The two dominant concerns that men have regarding radical prostatectomy are incontinence
(leaking of urine), and impotence (loss of erections).
The typical incontinence that
men experience early on after prostatectomy is called stress urinary incontinence. This type
of leakage is typically experienced with coughing, sneezing, standing up from a sitting
position, or with other vigorous activity.
Why are men incontinent after radical
prostatectomy? It is likely the prostate plays a very important role in keeping men dry.
Once the prostate is removed, only the external sphincter or pelvic floor muscles are left
for maintaining continence. Although this is the muscle that women rely upon solely for
continence, in many men this is not well developed. As time goes on after surgery, this
external sphincter will continue to gain strength even up to one year after the surgery.
Early on most men will require pads to keep their garments dry. No more than 5 - 10% of men
will require pads at the one year point and less than 3% overall require extra surgical help
to restore continence.
However, the robotic procedure may provide earlier time to
continence with 50% of men being out of pads at 3 months and 80% by 6 months. Most patients
report that 70% of men are out of pads by 6 months and 90% by 1 year after open surgery.
Regarding impotence, nearly every man after radical prostatectomy will completely lose his
erections temporarily. After prostatectomy, men have normal sensation in the penis and can
experience orgasm. However, during orgasm no fluid will be expelled. The remaining
question is whether the erections will return. With time, erections typically return over the
following 6-12 months. Some men require 18-24 months before erections return. Return
of erectile function is dependent on patient age, preoperative erectile function, and the
extent of preservation of the nerves to the penis during the prostate dissection.
Table 1 illustrates the reported potency rates after an open prostatectomy in patients with
normal preoperative erectile function.
During the operation, sparing of the nerves that
supply the penis necessary for erections may be possible. The nerves that help the penis
achieve erection rest on the back surface of the prostate. Sparing these nerves aids in the
long term recovery of erections. Nerve sparing can be performed if there is a small amount
of cancer present on the biopsy and if the prostate cancer has a low grade or low chance
of spread.
TABLE 1. Probability of recovery of potency by 24 months after open radical prostatectomy |
| |
Age < 60ys |
Age 60-65ys |
Age > 65ys |
Bilateral Nerve Sparing |
70% |
49% |
43% |
Unilateral Nerve Sparing |
26% |
15% |
13% |
Rabanni, F. et al. J Urol 2000; 164 (6): 1929-34 |
Data collection for potency results after robotic-assisted radical prostatectomy is ongoing,
but most centers report equal or slightly improved postoperative potency rates with reported
potency as high as 80% in young men (<60 ys) with normal erections preoperatively.
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