Venous lake venous lesions
Venous lakes are usually
acquired venous lesions
occurring on the face,
neck and lips. These lesions
commonly appear in people
in their 40s or 50s and
tend to become larger with
time. They usually occur
on sun-exposed parts of
the lips, face and ears.
They are also, commonly,
benign growths.
Laser treatment of venous
lakes usually yields a
typical good response.
These lesions are located
at a depth which needs
deep penetrating lasers,
such as, PDL, diode and
Nd: YAG. The Nd: YAG laser
at 1,064 nm is less absorbed
but penetrates deeper.
For treating superficial
venous lakes, PDL with
the help of diascopy is
quite effective. PDL with
diascopy still remains
the first line of treatment
for superficial venous
lakes.
Thicker and more nodular
lesions require lasers
with more penetration.
For the safe and effective
treatment of such lesions,
Nd: YAG, alexandrite lasers
and diode lasers, provided
with contact cooling and
adjustable pulse durations,
are used. The long-pulsed
Nd: YAG laser is highly
effective treatment for
venous lakes of the lip
and cheeks. This treatment
is painful. Therefore,
local anesthesia is recommended.
For instance, when treating
lower lip lesions, mental
nerve blocks are used.
If local anesthesia is
used, epinephrine should
be avoided.
The clinical endpoint
of PDL treatment is mild
swelling and bruising,
whereas the immediate endpoint
of diode laser treatment
is disappearance of the
vessels and flattening
of the lesions, after the
laser pulse. Similarly,
Nd: YAG lasers may be used
for treating hypertrophic
and nodal lesions, located
deep inside the tissue.
With a spot size of 3mm,
pulse widths between 30
to 100ms and power density
of around 100 to 150J/sq.cm,
vessel occlusion can be
achieved, giving the endpoint
of clinical vessel clearance.
Whatever be the mode of
treatment, two or more
treatment sessions may
be required for treating,
especially, hypertrophic
and nodal lesions, located
deep inside the tissue.
Better clinical outcomes
are expected when a combination
of different wave lengths
are used. Scarring is common
side effect in all treatments.
There is currently a huge
demand for treating facial
vascular lesions, such
as, venous lake, because
demand stems from both
medical and cosmetic needs.
The laser techniques, in
use offer safe and satisfactory
treatment. Lately, there
has been a perceptible
shift in laser treatment,
with the emphasis being
laid more on less downtime
and more treatments, rather
than on single treatment
and the ensuing treatment
related marked side effects.
For instance, pulse dye
laser treatment produces
significant bruising that
may take as long as 10
days to cure.
Patients are no more willing
to undergo such long duration
treatments, for side effects
at that. As a result, intense
pulse light laser treatment,
despite its limitations,
is becoming very popular
with patients. Newer laser
technologies, with variable
pulse widths and power
densities, and integrated
skin cooling systems are
able to provide safer and
better treatments with
long term benefits.