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What is the purpose of a biopsy?
Having a liver biopsy allows your doctors to examine the
structure of your liver microscopically. This may give vitally useful
information about the cause and severity of your liver problem, and enables
them to give you the best advice on your management.
Where will I have my biopsy?
We perform our liver biopsies within our own ward in Groote
Schuur Hospital. We have a bright, pleasant and comfortable ward and excellent
nursing staff and our patients are very satisfied during their short stay.
Our doctors do not perform biopsies in other hospitals: it is far
safer to have our patients remain under our direct supervision.
How is the liver biopsy performed?
The liver biopsy is a relatively simple procedure.
If you are not already in the hospital, you will be asked to have yourself
admitted at approximately eight o'clock on the morning of the biopsy.
You should have a light breakfast before the biopsy; having eaten something
causes your gallbladder to empty which is helpful. On the morning of your
biopsy, a blood sample may be drawn to ensure that your blood clotting
is satisfactorily. Thereafter an intravenous drip will be inserted into
your arm so that we came give you fluids and injections as necessary.
Immediately before the biopsy, your doctor will inject
pethidine into your drip. This is a powerful sedative and analgesic
(pain-killer), similar to morphine. This will make you drowsy, though
you will not actually lose consciousness. Your doctor will then carefully
examine your ribs on the right-hand side to determine the best spot for
the biopsy and will clean the skin around this area very carefully. You
will then receive an injection of local anaesthetic. This may be a little
uncomfortable as it may sting.
Since the liver lies under the lower ribs on your right-hand
side, the biopsy is actually performed by inserting a needle between two
of your ribs. Once the local anaesthetic has had time to work, your doctor
will ask you to co-operate by breathing in and out according to his or
her instructions. The biopsy itself is a very quick procedure: a special
needle attached to a syringe is quickly advanced through the anaesthetised
area and then immediately withdrawn: a tiny piece of liver (as shown in
the following photograph) is caught up within the needle and comes out
with it. Thereafter a dressing will be placed over the needle site and
you will be asked to lie on your right-hand side for several hours so
as to apply some pressure over the liver and reduce the chance of bleeding.
You will be feeling sleepy after your pethidine injection and will welcome
the opportunity to rest. Our nursing staff will however check your pulse
and blood pressure at regular intervals to ensure that all remains well.
How safe is it?
A liver biopsy is an extremely safe procedure. The principal
risks are bleeding and of a leakage of bile if the needle
should unfortunately penetrate one of the larger bile ducts. both these
complications are most uncommon. Even where they do occur, in most instances
they settle down by themselves, though patients would be required to stay
in hospital one or two extra days for observation and, if necessary, for
further treatment. Where more serious, an operation would be necessary
to seal the bleeding or the leak: this is however very rare indeed. Doctors
attached to our Liver Clinic perform as many as four or five biopsies
per week, and collectively we have a vast experience and a minimal rate
of complications.
Will it hurt?
Your doctor will take great care with the correct placing
and injection of local anaesthetic as well as with the biopsy itself and
the chances are that you will feel no pain. Approximately one patient
in five experiences some discomfort during the few seconds required for
the biopsy itself , but in general, the biopsy is a considerably less
unpleasant experience than having a dental filling! Some patients experience
pain or discomfort between the ribs or in the shoulder following the biopsy
whereas many have no discomfort at all. If you have any pain, we will
give you tablets or even an injection to settle it. We do ask you not
to take aspirin or other anti-inflammatory drug, as these may interfere
with the ability of your blood to clot. Pracetamol and codeine are however
safe.
How long will I stay in hospital?
If you are otherwise in good health, have had an uneventful
biopsy without complications and have friends or relatives who can take
you home by car, you will be allowed to return home in the late afternoon
or early evening of the same day. If our staff are not entirely satisfied
with your condition, or if you do not have access to transport, we may
recommended that you spend the night with us. You may return to work the
next day provided you restrict yourself to light duties, but it is quite
reasonable to take a day off work and you will be given a certificate
if you require it.
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