Liver Biopsy
This procedure is used to take a tissue of the liver in
order to diagnose and evaluate symptoms which may be caused by abnormal liver
function. Before you arrive at the hospital for the biopsy, there are a few
preparations: blood samples will be taken in order to determine blood clotting
capabilities and make sure to mention any medications you are taking to your
physician prior to the procedure. A chest x-ray may be taken. You should not
ingest aspirin, ibuprofen or any anticoagulants one week prior to your biopsy as
this will affect the healing process. Do not eat or drink anything 8 hours
before the procedure. Speak with your physician about any other special
instructions, including if and when to take regular medications.
When you arrive at the hospital, the nurse will begin
an intravenous line in order to administer medication. There are a few types of
biopsy methods that can be used: percutaneous liver biopsy is the most common.
This type of biopsy is done through the skin. First, the area of the body
through which the biopsy needle will pass is anesthetized using either Novocain
or Lidocaine. The biopsy needle is then inserted into this area. While the
patient is holding his/her breath, the biopsy needle is quickly inserted and
retracted from the liver--this only takes a second or two. This action removes
a small piece of tissue from the liver which can be analyzed in the lab to
diagnose abnormalities. The physician may use an ultrasound in order to
determine specific areas of the liver for biopsy. There is minimal pain after
this pressure at the insertion point of the biopsy needle. In some cases, pain
medication may be given for a few hours.
Another type of liver biopsy is laparoscopic-assisted.
In this type of procedure, the physician uses a laparoscope, a think viewing
tube, which will reflect images of the liver onto a TV monitor while the biopsy
is being performed. This type of procedure is used when the physician would
like to take samples from specific areas of the liver.
Your physician may also choose to do a transvenous
liver biopsy. In this type of procedure, a tube called a catheter is inserted
into the neck and down to the liver. The biopsy needle is inserted through the
catheter. This type of biopsy is usually performed for patients that have blood
clotting problems or have fluid in the abdomen.
After the surgery, you may be kept in the hospital for
up to 24 hours for observation, just to make sure there are no complications.
Usually, you may go home with a driver after the sedatives have worn off. You
should not exert yourself for at least a week while healing from the biopsy.
You may experience some pain at the insertion point of the needle or in your
right shoulder. This is normal and the pain will disappear either in a few
hours or a few days. Your physician may recommend Tylenol for pain, but you
should not take aspirin or ibuprofen, as these types of medication will
interfere with blood clotting, which is essential for the healing process.
Complications resulting from liver biopsy are rare.
However, they do exist. 1 out of 100 patients will experience bleeding at the
site of the biopsy. These cases rarely require transfusions. 1 out 1000
patients will require surgery to repair this type of complication. Other
complications include: puncture of the lungs, puncture of the gallbladder,
infection and pain.