Laser
skin treatments is one of the resurfacing methods by which layers
of damaged epidermis ( lines, wrinkles, acne scars, pigmentation and
skin unevenness ) is removed using laser energy. Even though precision
of laser is one of its advantages over other methods, treating only
part of the skin with any resurfacing procedure may not produce
an even complexion. Those who still have acne breakouts,
are at no considerable risk to try YAG treatments. Some may see
some improvements in their breakouts. Because its effects are less
deep, the erbium laser does not cause
collagen shrinkage in the dermis of the skin (the layer right below
the epidermis), and some studies have shown that this is necessary
for better long term effects to remove damaged layers. Proper classification
is important because differences in clinical acne scars characteristics
determine the treatment protocol. Color, texture, and morphology,
of lesions as well as previously applied treatments, will affect
the laser parameters and number of
treatments required for optimal improvement. Progress in laser
skin technology and refinements in technique have made laser skin
resurfacing a preferred choice for hypertrophic
lesions and keloids.
Overview of Efficacy of Different Laser beams
Scar
reduction is one of the most common
uses of laser skin resurfacing. CO2
lasers can vaporize skin layer-by-layer, causing minimal
damage to other skin tissue. Special scanning devices move the laser
light across the skin in predetermined patterns,
ensuring proper exposure. Revision of the outer layers of facial
skin is followed by formation of a new skin as a result of work
of healing mechanisms. The result is a smoother, somewhat tighter
skin. Lines around the eyes, mouth, and cheeks are the
primary uses for face resurfacing. Smile lines or those associated
with other facial muscles tend to reappear after a treatment with
a YAG beam. Laser skin reconstruction appears to achieve its best
results as a spot treatment; patients expecting complete elimination
of their acne scars will not be satisfied. Complete eradication
is closely correlated with lesions types, depth and their locations.
Deep-seated lesions may not be well affected, atrophic lesions benefit
most. One study (Langsdon et al) suggest that Phenol peel is as
effective as the laser in removing
damaged epidermis in the thin-skinned areas of the face. Healing
laser produces improved results in
the thick, glandular areas of the face, but also produces more intense
hypo pigmentation, longer periods of patient discomfort, and longer
periods of postoperative red skin. Both phenol peel and resurfacing by laser remain useful clinical
tools. As a consequence of the risks associated with ablative laser,
great interest has been shown for less invasive methods to effectively
treat atrophic lesions. Among them YAG
has been enjoyed a better recognition. Protocols often include three
consecutive monthly laser sessions
with the greatest clinical improvement noted between 3 to 6 months
after the final treatment. Lasers of various types are used in treating
stretch marks and seem to be a promising mode of treatment. This
has been associated with an increase in dermal elastin. The pulsed
dye laser has a moderate beneficial effect in the treatment of stretch
marks. Intense pulsed light is also useful, and has minimal side
effects. Short pulsed carbon dioxide laser has been tried as well.
Lasers and light sources emitting UVB radiation have been shown
to repigment striae distensae. Modalities other than laser skin
resurfacing has been shown to improve the appearance of stretch
marks.
Who is Laser resurfacing for?
Those with active acne inflammation, infection such
as active acne are not good candidate for facial scars resurfacing by laser.
Also those who have been using Accutane for the past twelve months
may consider other resurfacing techniques such as peeling. Keloid prone
skins also are not considered best applicants. Olive and darker
complexions are more likely to develop hyperpigmentation following
laser resurfacing.
Risks and Side Effects
Burns, obvious lightening or darkening of the skin,
scarring and herpes infections are among side effects. These side
effects shouldn't discourages you to choose to laser resurface the
skin unless your surgeon suggest you so.
Procedure
Diverse
penetration levels allows treatment of different layers of the skin.
In a deep laser peel dermis specifically
targeted while in a more superficial peel only epidermis ( outer
layer of the skin ) is affected. More frequent superficial treatments
may produce the same result as the one seen by deeper peels. Antiviral
medications should be started several days before treatment. Procedure.
Scarring reduction laser is performed
under local anesthesia. An oral sedative may also be taken. The
patient's eyes must be shielded, and the area surrounding the face
should be shielded with wet drapes or crumpled foil to catch stray
beams of laser. The physician will mark the damaged areas for resurfacing
prior to beginning of the procedure. Side-effects and complications
of non ablative reduction with laser for
atrophic lesions are generally mild. Transient post-treatment erythema
is observed in almost all patients, resolving within 24 hours. Blistering,
crusting, and skin residues are rare and although the risk of post-inflammatory
hyper pigmentation is substantially reduced with non
ablative laser procedure.
After Laser Care and Recovery Time
Skin
moisturization is of crucial importance after skin damage reduction
with laser revision as it is in any
other type of procedure for scar reconstruction such
as peeling with Glycolic acid %30. Moisturization promotes more
rapid healing and reduces the risk of infection. Some physicians
favor application of ointments only to the skin; others prefer the
use of dressings. In either case, care of the skin is similar to
that given following a chemical peel for acne scarring reduction.
The face is washed with plain water to remove ooze, and an ointment
is reapplied.
Recovery time is closely correlated
with intensity of laser. Deeper treatments take longer period of
recovery. In general healing will take approximately two weeks.
Pain medications and a steroid to reduce swelling may also be taken.
Laser resurfacng for scar removal appear
to be more successful in convex areas of the face. Lateral cheek
and the temples do not benefit from this technique as much.
Cost of Laser Procedures
Cost
of a treatment of laser scar revision
varies between $2000 to $4000 depending on the size of the affected
area. Time for recovery may vary between 4-6 weeks. |