How reliable is the PSA test?
It is not a perfect test, but it is the best we have at present and
is considered extremely useful by most urologists, especially if
it is expertly evaluated, and taken together with a digital rectal
examination (DRE). All men have small amounts of prostate specific
antigen (PSA) in the bloodstream and this level can increase with
age or if there is any infection or inflammation in the prostate.
This can cause falsely high PSA readings, which can be
alarming. A raised PSA can be an important sign of prostate
cancer and in this setting it can save lives. The Department
of Health has recently sanctioned PSA tests in informed men aged
50–70 and your GP will be able to discuss this with you.
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What is the PCA3 test?
The PCA3 test is a new molecular test that measures the extent to
which the PCA3 gene is expressed in cells derived from the prostate.
It does not require a biopsy, but instead a prostatic massage is
performed and the first 10–20cc of urine is collected and the
specimen sent to a specialised laboratory to be analysed. A
value above 35 suggests that there is an increased risk of cancer
being present if a biopsy is performed. The higher the PCA3
value the greater the probability of a positive biopsy. Unlike
PSA, PCA3 values do not increase as the prostate enlarges. There
is now some evidence that PCA3 is more positive in larger more aggressive
cancers, and less so in smaller clinically insignificant tumours,
so there is great interest in this test.
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What is a prostate biopsy, why is it necessary
and how is it performed?
A prostate biopsy is a procedure to remove some very small samples
of prostate tissue from the prostate gland.
Consultants ordinarily recommend a biopsy to see what degree of cancer
may be present if the PSA level is raised above the norm (greater
than 4 ng/ml).
A very fine hollow needle is pressed into the prostate so that the
tissue becomes a 'core' in the interior of the needle which is then
withdrawn. The process is usually performed under ultrasound
control which provides the urologist with an image of the prostate
so that he can guide the needle to the best position. A probe,
covered by a condom, and the size of two fingers is introduced into
the rectum and the ultrasound image is used to direct the biopsy
needle towards the required part of the gland. Under local
anaesthetic and antibiotic cover, 12 or so cores are taken and then
sent to a pathology laboratory for analysis. Each one is assessed
for the presence or absence of cancer.
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I am told this can be very painful and
unpleasant. Is this true?
Biopsies are not exactly thrilling or agreeable to experience; they
can vary from just uncomfortable to very uncomfortable or, at worst,
rather painful. They can also cause rectal bleeding and blood
in the ejaculate, but this has been likened to having a nosebleed,
and it will stop after a few days. Nowadays, doctors taking
biopsies from the prostate, via the rectum, will usually use a local
anaesthetic. You will also be treated with antibiotics to help
prevent any associated infections. If you do develop a temperature
or shaking attacks after a biopsy please let your doctor know immediately. These
are usually due to an E coli infection secondary to the biopsy and
will need to be treated, often with intravenous antibiotics.
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What is the Gleason score?
The biopsy results give very important information about the extent
of the cancer within the prostate and also the level of aggressiveness. The
pathologist will give any cancer cells a grade called the Gleason
Grade. Prostate cancers range from slow growing tumours which
are unlikely to spread and cause any problems to fast growing tumours
which can spread quickly. The Gleason Grade is a scoring system
between 6 and 10. The higher the score, the more aggressive the cancer
is thought to be. These results in combination with the stage
of the cancer and the original PSA will be important in deciding
the best treatment option.
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Can I have my biopsy done under a general
anaesthetic??
Yes, biopsies can be done under light anaesthesia in which case they
are painless. Recently, a template biopsy technique is being
used which allows biopsies to be taken more precisely through the
perineal skin, rather than the rectum. This reduces the risk
of infection and allows more samples to be taken, thereby increasing
the accuracy of the technique.
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Consultants sometimes want you to have
a bone scan, CT scan or MRI scan before they will deliberate on
the best course of treatment. Why is this?
These tests will show if the cancer has spread outside the prostate
and again are very important in deciding the best treatment options.
It is common to have a CT or MRI scan which will give information
about whether the cancer has spread outside the prostate to the immediate
surrounding areas or to the local lymph nodes. A bone scan
may also be arranged to see if any cancer cells have escaped and
spread to the bones. These scans along with the information
from feeling the prostate at DRE will enable the doctors to stage
the cancer. There are basically three different stages with
different treatment options:
Localised or early prostate cancer is when the tumour is contained
within the prostate gland and has not spread to any other parts of
the body. These early tumours can usually be treated with surgery,
radiotherapy or sometimes active surveillance (see above). The
stage of the tumour will be considered in combination with the Gleason
Grade (above) determined from the biopsies and the PSA results. Some
men have normal scans but a high Gleason Grade or PSA and this can
be an indicator that there could be a risk of tiny microscopic prostate
cells that have spread to other places in the body that are too small
to be seen on a scan. In this situation it is common to offer
both local treatment, (usually with radiotherapy) and also hormone
therapy which has been shown to help prevent or delay the cancer
developing in other places in the body.
Locally Advance prostate cancer is when the cancer is seen
or felt to have spread just outside the capsule of the prostate into
the immediate surrounding tissues or local lymph nodes within the
pelvis. Men with locally advanced prostate cancer have a higher
risk that microscopic cancer cells may have already spread (as above).
In this situation treatment is usually with radiotherapy to include
the surrounding structures (as well as the prostate) in combination
with hormone therapy as this can delay or prevent the cancer coming
back in other places and is given by tablets or injections. Some
men with locally advanced prostate cancer are treated with hormone
therapy alone. The choice depends on factors that you will
discuss with your doctor.
Advanced or Metastatic prostate cancer is diagnosed when the
scans show that the cancer has spread to distant sites usually the
bones. This is usually treated with hormone injections initially
but there are many other therapies that can be added later if necessary
to keep the cancer under control.
So staging scans, as well as biopsies, and the original PSA value,
are vitally important for making treatment decisions.
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If cancer is diagnosed,
should I have radiotherapy, brachytherapy, surgery, or active
surveillance?
There is no right and wrong answer in the treatment of early prostate
cancer and treatment approaches can vary with many different factors.
The options can be between active surveillance, radical radiotherapy
with either external beam treatment or brachytherapy or radical prostatectomy.
The treatment choices that you are offered will depend on some factors
related to the tumour itself. These include the stage of the
prostate cancer (how much cancer can be seen and felt in the prostate),
the grade (the level of aggressiveness of the biopsies) and the level
of presenting PSA. Some men have other medical conditions that
may make certain treatments more difficult or more likely to cause
certain side effects and this will also need to be considered. When
there is a choice between several treatment options, it is important
that you are able to discuss these therapies with all the relevant
doctors and nurses and make a decision as to which treatment best
suits your individual needs and circumstances. The choice can
sometimes be influenced by where you live and the how the different
side effects of treatment may affect you individually.
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What is Active Surveillance ?
Following the increase in testing for prostate cancer by the PSA
(prostate specific antigen) test and subsequent prostatic biopsy,
the number of patients diagnosed with prostate cancer continues to
rise. The problem then is to distinguish the potentially life-threatening “tiger” cancers
from the less dangerous “pussy cat” cancers that pose
little or no threat to life, provided that they are carefully monitored.
Active surveillance may be an option for some men with early localised
prostate cancer. Suitable patients are those who would be fit
for radical treatment (surgery or radiotherapy) and have low risk
localised disease (usually Gleason ≤ 6 and PSA ≤ 10 ng/ml).
Men are monitored with regular PSA checks, MRI scans and repeat prostate
biopsies. If the disease becomes more active (rising PSA or
more aggressive disease on scan or biopsy) they can then have radical
treatment with surgery or radiotherapy. Although it can sometimes
be difficult for patients and their partners and families to come
to terms with living with cancer rather than opting for initial active
treatment with surgery or radiotherapy, there is mounting evidence
that for a subset of men diagnosed with early prostate cancer this
can be an option. Provided that follow up is meticulous and
that speedy treatment is employed if there is clear evidence of prostate
cancer progression, there is little reason to suspect that overall
outcomes are jeopardised. And many men following this protocol
will in fact avoid the need for radiation or surgery altogether,
thereby maintaining their full quality of life, with little jeopardy
to their sexual and urinary function. It is however only one
option and some men may elect to have immediate radical therapy for
their early disease after considering all the options.
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Why are certain patients
ineligible for brachytherapy?
Low dose rate (LDR) permanent seed brachytherapy can also be an effective
alternative in some men with early prostate cancer. It involves ‘radioactive
seeds’ being implanted in the prostate under anaesthetic. The
seeds are left in the prostate permanently where they slowly lose
their radioactivity and treat the prostate cancer over several months.
This type of brachytherapy is most suitable for men with early localised
prostate cancers that are growing slowly (Gleason grade 6). It
is not usually suitable for men with high grade or more extensive
tumours.
There needs to be a careful assessment of prostate size before treatment
as men with large prostates can have an increased risk of urinary
side effects with this treatment and this can be another reason why
some men are not suitable for seed brachytherapy. If TURP has
been performed previously, the radioactive seeds cannot be sited
correctly in the gland. Pre-treatment with prostate-shrinking
drugs such as LHRH analogues can sometimes make brachytherapy suitable
for men with large glands.
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What are the commonest
side-effects of radiotherapy?
Most men experience some side-effects during radiotherapy but the
severity varies from person to person. Side effects can occur
during treatment (acute) and are usually temporary or later after
the treatment has finished and these can be permanent. You
should however be able to continue normal activities during the radiotherapy. Acute
or Short Term side effects are temporary and usually occur in the
last three or four weeks of treatment and start to get better a few
weeks after the treatment is over. You will be given advice
about diet and skin care before the treatment starts. Your
doctor will prescribe creams and medicines if you need help with
any of these problems. The common temporary side effects are
tiredness, frequency and stinging when passing urine, diarrhoea and
soreness in the rectum. There can be occasionally be some bleeding
or mucous (slime) form the rectum.
There may be some darkening and soreness of the skin in the area
being treated especially between the legs and around the anus.
Other side-effects can occur many months after the radiotherapy has
finished and these can be permanent. These include loss of
erections, long term change in bowel habit with diarrhoea or urgency
to have the bowels open and occasionally some bleeding from the rectum.
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If I go for surgery, is
the aftermath of the operation painful?
Not really, because any pain is expertly controlled. This can
be achieved, for example, through the use of epidural anaesthetics
and of drugs given to you post operatively. The side effects
of the surgery and what to expect afterwards will be discussed with
you before the operation. These days more and more operations
aimed at removing the whole prostate (radical prostatectomy) are
done through keyhole incisions, with or without robotic assistance. Keyhole
surgery causes a lot less post-operative discomfort than traditional
open surgery because the wounds are much smaller.
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Is there much loss of
blood?
No, not normally. Only a small proportion (less than 5%) of
patients undergoing radical prostatectomy nowadays require a blood
transfusion, possibly about two pints — not a particularly
significant quantity.
The new approaches of removing the prostate with either keyhole (laparoscopic)
surgery or robotic assisted keyhole surgery have been shown to reduce
blood loss even further so that blood transfusion after these types
of operation are now very uncommon.
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Do I need to have some
of my own blood taken beforehand?
No, unless it will buy you peace of mind, but if there are no exceptional
circumstances there is no need. Use of your own (autologous)
blood is more common in the USA, where there is possibly a higher
risk of infection from regular blood transfusion. It is not
advised in the UK.
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I have heard that you
see traces of blood in the urine after the operation. Is
this true and why is it?
It is true, but normally it is only a trace, and just while the catheter
is draining urine immediately after the operation, or perhaps for
a while longer while the re-routed ‘plumbing’ inside
is healing. It normally clears after a week or two at most. Drinking
extra fluids is helpful, as is taking laxatives, whole wheat cereal,
prune juice and fruit to keep the bowels regular.
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Is there any risk that
I will die during or shortly after the operation?
There is always such a risk with any operation (around 1 in 1000),
but we do not often hear of it happening. Do not be afraid
to ask your surgeon what his own mortality rate is. Ask him
or her when the last major complication occurred and what was the
outcome.
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What about unsightly scars
as a result of the operation?
This need be the least of your concerns. To gain access to
the prostate, many surgeons perform an 8—10 cm lateral or vertical
incision above the pubic bone, with a small drain hole beside it. Clips
are more commonly used than stitches these days, and the healing
process is quick. Indeed after a few months the scar is almost,
but not quite, invisible. New recent developments include
Laparoscopic (keyhole) and Robotic (robot assisted keyhole) radical
prostatectomy.
These techniques involve making 4 to 6 very small cuts and the surgeon
removes the prostate using tiny instruments under magnification through
a telescope.
The surgeon views the operation on a video screen. This has
the advantage of reducing blood loss and shortening the recovery
time after the operation.
The very latest development is the use of a robot to assist keyhole
surgery. This involves the surgeon conducting the surgery
via a robot. The surgeon sits at a console and his/her movements
are replicated by the robot with extreme precision beyond the capabilities
of the human hand. This again allows reduced blood loss and
better preservation of the tiny nerve bundles that are important
for achieving erections. This new technique looks set to increase
in the future as cancer excision rates are high with less incontinence
and better preservation of sexual function.
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How long will I be in
hospital?
Between 4 and 7 days, often including a 12—24 hour period in
a progressive care ward where you will be monitored for bleeding,
signs of respiratory infection, or any heart rate instability.
About a fortnight after the operation, your catheter will be removed
and you will be watched closely for 24 hours to make sure the new
‘plumbing’ is in order (for example, your fluid intake
will be checked against your urine output). The newer keyhole operations
have the advantage of a shorter recovery time and a reduced stay
in hospital often only 2 or 3 days. Also the catheter only needs
to stay in 1 week as the join between the bladder and the urethra
(the tube through which urine passes out of the body) can be performed
more accurately.
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When will I know if the
surgeon has successfully excised the cancer?
He or she will usually tell you what he thinks within 24 hours, but
he has to wait for a few days for the laboratory report on the removed
prostate to be sure what has been achieved. If the report
is such that some cells are thought to have escaped from the prostate
into the surrounding tissue, a so-called ‘positive margin’ then
the surgeon may recommend some ‘mop-up’ radiation, which
is usually very successful. The radiation therapy does not
have that much to do compared with clearing the whole prostate of
cancer (as is necessary if surgery is not performed). Side-effects
are not usually too troublesome, although some rectal irritation
and minor bleeding may occur.
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Will the PSA have dropped
out of sight after the operation?
Yes, it should have dropped to about 0.6 ng/ml or thereabouts immediately
after the operation, and then gradually reduce further to an ideal
of below 0.1 ng/ml where, in successful cases, it should remain for
the rest of your life. But remember to have it checked every
3 months for at least a year, and at the same laboratory too, otherwise
you may get a variation in results that could alarm you. In
other words, one laboratory may have machines that only read as low
as 0.5 whereas another might read down to 0.1, or even 0.01. In
essence the result, as far as you are concerned, is the same. If
the PSA begins to increase months or years after the surgery you
may need some mop up radiotherapy at that stage and your surgeon
and oncologist will advise you about this.
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How many years do I have
to have these tests?
You will need to have PSA tests for many years but these will be
less and less as time goes on. It is important to note that
after surgery we aim for the PSA to be less than 0.1ng/ml to 0.2ng/ml
but after radiotherapy the PSA levels will be higher due to the fact
that the normal prostate tissue can secrete small amounts of PSA. The
current definition of good response to radiotherapy is a PSA that
remains below 2 to 3 ng/ml. Also if hormone treatments are
given in combination with the radiotherapy, the PSA will increase
a little after the hormones are stopped as the normal prostate tissue
recovers from the therapy.
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Are there any special
things I need to remember when I am in hospital?
Yes. Don’t encourage too many visitors; don’t worry
about breaking wind (nurses love wind because it shows things are
beginning to sort themselves out in the bowel, which will have been
a bit disturbed during the operation): don’t eat too heavy
a diet because you don’t want to get constipated through lack
of exercise and too many heavy meals: drink as much as you can — at
least 8 pints of water or soft drinks, like cranberry juice, every
day for a couple of weeks if you can stand that (it helps to flush
the system through after your internal plumbing has been re-routed);
and, most importantly, just look forward to the new future that the
surgeon will have given you.
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Is it true that my penis
will be shorter after the operation?
Well, yes, some men have noticed a detectable change in length, but
not circumference, when the penis is at rest once everything has
settled down. But it’s somewhat relative. It rather
depends upon how well endowed (as the expression goes) you were to
begin with. If there is a noticeable difference, it is very
slight. It is because the newly organized and re-routed urethra
has been necessarily shortened and therefore had the effect of ‘pulling
back’ the penis into the body just a little.
After a few months, the urethra will stretch to accommodate most
of the change. On erection, the difference is usually of little
or no consequence.
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I have heard that after
the operation my scrotum and possibly my penis will be very badly
swollen and look severely bruised. What will they have done
to them and why is this?
This is seldom mentioned before the operation because it is of no
long-term significance, but yes, there can be some rather alarming–looking
swelling — more often associated with the scrotum, which can
occasionally swell to the size of a small orange — but it subsides
quite quickly, doesn't hurt, and is neither damaging nor even particularly
inconvenient or uncomfortable. The penis can appear a bit
bruised also, and this has to do with inevitable disturbance (during
the operation) of the blood vessels and nerve endings serving the
scrotum. But it really is a very short-term problem and is
soon history. Scrotal and penile swelling is less common after
laparoscopic or robotic surgery than traditional open operations.
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Do I need any special
nursing care when I first go home?
Not normally, though you may need some help getting up from deep
armchairs, or getting into and out of bed during the first few days
at home. And it is advisable to wear loose clothes like tracksuit
bottoms because your lower tummy will be a bit swollen, and getting
zips done up can be a problem for a while. Also you need a
spare urine collection leg bag, which the hospital can give you,
or you can buy them easily from chemists. You need to keep
yourself scrupulously clean to reduce the risks of any infection
while the catheter is still in place. Some patients like to
have sleeping tablets to help them get off to sleep when they are
at home with a catheter in place.
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Is it painful to have
the catheter removed?
Not normally, because catheters are much slimmer these days. Usually
it only takes a moment and it's gone, but they can occasionally get
a little stuck because of a tight fit. But a modern catheter
getting severely stuck is unusual, and you would have to be unlucky
to experience it.
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Will I feel tired and
washed out after the operation?
Yes, you may, as this is a normal protective mechanism to allow healing. Some
men feel a tremendous loss of energy, and have days when they think
they will never regain their original verve, but gradually the energy
level returns and the post-operative tiredness and lassitude are
soon forgotten. In others the effect is minimal. Fatigue is
less after keyhole (including robotic) surgery than traditional open
surgery and patients are back to normal activities quicker, but heavy
lifting should be avoided.
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How long should I be off
work?
Between 6 and 8 weeks is recommended, although reading, telephone
calls, and stress-free activity are all fine. Every single
patient with whom we have spoken who has returned to work a bit early
has really regretted it, and his recovery has taken longer. Remember,
nobody is indispensable, and it will probably do your colleagues
the world of good to shoulder some of your responsibilities while
you are away! Even if you are retired, take it easy, and handle
one day at a time. You can't really drive comfortably for
a few weeks, anyway, so get somebody to drive you!
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Can I exercise after the
operation?
Yes, but listen to your body: it will tell you how much is sensible
and when to rest. But avoid heavy lifting, such as weight training.
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Will I lose my continence
control?
Not unless you are very unlucky. Most patients now recover
control almost as soon as the catheter is taken away, but it is true
that for some it can take a few hours, a few days, a few weeks, and
even a few months, and you might need to wear some padding for a
while if leakage is a bit of a problem. As explained earlier,
many surgeons ask you to stay in hospital overnight after the removal
of the catheter, measuring fluid intake and outflow to see that the
plumbing is working as it should and that there are no internal leaks. To
some extent, regaining continence control depends upon individual
muscle tone (and you will be taught exercises to strengthen the pelvic
muscles), the skill of the surgeon who will have done all he can
to spare the nerves that affect continence, and a certain amount
of incalculable individual luck. The good news is that things
almost always dry up sooner rather than later, and you should have
a urine stream like when you were a teenager. If the urinary
stream does deteriorate, alert your urologist. You may be
developing a bladder neck contracture, which requires gentle stretching
under light anaesthetic.
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Is sexual dysfunction
a problem?
Yes, for nearly everyone, whatever they claim. However, some
ability and sensation, albeit with a dry orgasm (because the seminal
vesicles have been removed as part of the operation) can return after
a few months, or sooner for a few lucky ones. Normal penetrative
sex is a problem because however careful the surgeon was to avoid
damaging the nerves during the operation, achieving a sustainable
firm erection is more difficult for most patients, although some
men say they can manage reasonably satisfactorily. Having a
successful radical prostatectomy is unquestionably a trade-off because
if the alternative is to die of prostate cancer, then it has to be
remembered that so far as we know there is not a great deal of sex
in the graveyard. (Although a local vicar, who incidentally
has undergone a radical prostatectomy, told us that there is rather
too much in his!) Sexual dysfunction is also quite common after
radiotherapy.
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Are there things I can
do to help me get back my erections?
Yes, there is a lot that can be done to help restore erections. These
days an active programme of rehabilitation is advised. Tablets
such as Viagra, Cialis and Levitra can all help as can the use of
a vacuum device to achieve an artificial erection. Injections
of prostaglandin E1 in the form of Caverject almost always are effective. Penile
suppositories of prostaglandin (known as MUSE) are available, but
are quite expensive. They do work, though, and are favoured
by some patients. In a few cases there are silicone implants
(for those who wish to afford them privately, or individuals who
can persuade the NHS to help), and these either work rather like
a bendy toy, in the sense that you bend it up when you want that,
and down when you don't, or are available in an inflatable form,
which quite closely simulate a normal erection.
Other drugs such as Uprima (apomorphine) can be helpful. Successors
to Viagra, known as Cialis (tadalafil) and vardenafil, may act more
quickly and stay effective for longer.
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How will my partner be
affected?
Nobody can ‘catch’ prostate cancer from you, but your
partner will certainly be affected if impotence is the result. Frank
discussion is vital before and after the operation, particularly
if you go for a radical prostatectomy, and the partner must understand
the implications along with you. The ‘prostate cancer
journey’ can be a lonely one so take your partner with you
and allow them to help and support you along the way.
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Should I tell my family
and friends I have, or have had, a cancer?
It’s up to you of course, but why should there be a need for
secrecy and shame, and why not become an advocate for regular check-ups
and possibly save a life in the process? This is particularly
true if you have sons or brothers who have yet to reach their 40s
and 50s when a check-up would be wise, unless by then medical science
has beaten this disease completely. Prostate cancer does run
in some families so it is important that you share information with
them candidly.
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Will the cancer come back?
Well, yes, this has been known, with any of the treatments. The
doctors will determine the risks of your individual case and do everything
to try and prevent any recurrence of the cancer as early as possible. This
can sometimes mean that you will need a course mop up radiotherapy
after surgery. This can be given as a planned procedure after
the operation if the surgeon and pathologist feel there is some cancer
left behind in the bed of the prostate. Sometimes a small
rise in PSA months or years after the surgery can be an early warning
sign that the cancer could be active again and radiotherapy can also
be given successfully at this stage. If there is a risk that
there could be tiny microscopic tumour cells in other parts of the
body, your doctor may advise a period of preventative hormone therapy
with either tablets or injections as this has been shown to prevent
or significantly delay any cancer recurrence. If the cancer
does come back there are many other effective treatments including
different hormone drugs that can be used in sequence. Chemotherapy
with taxotere has recently been shown to be effective in prostate
cancer if and when some of the cancer cells stop responding to hormone
therapy. There are also many new and very promising new drugs
that are being developed and are currently being tried out in clinical
studies.
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Was there anything I could
have done to prevent the cancer in the first place?
Not really, because nobody knows for certain why anyone is affected
by it. There are plenty of theories. Some say it is
all to do with diet (ranging from eating too much saturated fat,
especially red meat); others believe it is a genetic disease (and
there is much research going on in that direction); yet others say
it is connected with a multifarious and largely unidentifiable mix
of factors, including having had a vasectomy. Nobody has a
monopoly of wisdom on the subject. The latest research has
found that men who carry a damaged version of a mutant gene are four
to five times more likely to suffer from prostate cancer than those
who do not have this faulty gene. It’s a case of ‘watch
this space’.
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And what about the future
in terms of treatments?
There is much research going on which may one day find a solution
for prostate cancer, through a vaccine, gene or stem cell therapy
to achieve a more certain cure without losing the gland, but we are
presently years away from this happy circumstance. And, inevitably,
more money is needed to support research into the causes and possible
cures of this very common disease.
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