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The
following is a summary of the procedure that is routinely
given to our patients when they are seen in consultation:
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The patient is given a mild tranquilizer
(usually Valium or Versed), either orally or
intravenously, at the beginning of each session. This
minimizes anxiety, reduces discomfort, and helps to
prevent or decrease any side effects that might be
caused by the anesthetic.
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Hair in the donor area is clipped
to a 2 mm length in one or two zones that are less than
12 mm (1/2 inch) wide, and a total of 10-25 cm (4-10")
long. If the hair in the donor area is left 1 ½ - 2"
long, the hair above the donor site can be combed over
and completely camouflages these areas immediately after
the procedure.
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The donor area and the recipient area are
anesthetized
by injecting a local anesthetic with a very small gauge
needle that is about the size of an acupuncture needle.
In addition to using a small gauge needle, we reduce the
sting when injecting the local anesthetic by
neutralizing the pH of the anesthetic, which is normally
stored in an acidic form. (The acidity is the main cause
of the stinging one usually feels.) Nitrous oxide
(laughing gas) may also be used simultaneously for
particularly sensitive or nervous people.
Anesthetizing the area is the only uncomfortable part of
the session. Although it may be hard to believe, many
patients have told us that the above technique usually
causes less discomfort than a visit to their dentist.
In order to accommodate patients who prefer "no needle"
procedures, we can use an instrument called a "dermajet",
which propels the anesthetic into the skin via pressure
rather than a needle. Even though no needle is being
used, such propulsion does cause a short-lived sting at
each site. Most patients seem to find this method less
satisfactory than the use of narrow gauge needles, but
both options are available.
For patients who are particularly anxious about pain, an
anesthetist can be called upon to administer a very
short-lived and very safe general anesthetic (Propofol),
which induces sleep for 5 to 10 minutes during which all
the potentially painful needles are given. It is,
however, worthwhile emphasizing that this is rarely
necessary as current techniques produce very little
discomfort for the vast majority of patients.
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After the local anesthetic has taken effect, a
scalpel is used to cut narrow 'strips' or 'ellipses' of
hair-bearing scalp from the donor areas and the
wound is closed with sutures. (A similar method can also
be used to remove scars in the donor area). This tissue
is then divided into a variety of graft sizes.
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Many types of grafts are now used in the
recipient area.
Their advantages and disadvantages are discussed
elsewhere in this website—see “Types of Grafts”.
In general, the smaller the size of the graft used, the
less noticeable treatment will be post-operatively and
in between sessions. On the other hand, in general, the
smaller the graft, the lower the density that can
ultimately be achieved.
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Grafts are held in place by coagulated blood.
To keep them secure and properly oriented, a turban-like
bandage is usually applied after the operation and left
in place overnight. The following day, the bandage is
removed and the area is cleansed. If there is no more
than the average amount of bleeding during surgery and
you are willing to remain in the office for one or two
hours after the procedure is completed, you can go home
without a bandage. (Most patients seem to prefer the
security of an overnight bandage). Whether or not a
bandage is used, patients return the next day for
follow-up cleansing, hair washing, and check-up.
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