Presidential Greeting - American Society for Laser Medicine and ...

Conclusion: This new total combination therapy provides a
promising treatment option for acne scars, and decreases side
effects more than classic laser skin resurfacing or sequential
combination therapy.
#228
CLINICAL STUDY TO EVALUATE THE EFFICACY
AND SAFETY OF FRACTIONAL
RADIOFREQUENCY SYSTEM
Taewoo Noh, Tae Woo Noh, Yoo Seok Kang,
Un Ha Lee, Hyun Su Park, Sang Jai Jang,
Bang Soon Kim
Sanggye Paik Hospital; S & U Clinic, Seoul, Korea
Background: Fractional lasers achieved good results of
rejuvenation with lesser epidermal damages. The eMatrix
(Syneron Medical Ltd, Yokneam, Israel) is capable of delivering
ablative radiofrequency (RF) energy to the skin in a nonhomogeneous
fractional manner via an array of multi-electrode
pins. The electrode pins lead to ablation of the skin directly and bipolar
RF make the inverse cone shape of heating zone below the
every electrode, leaving intact or slightly affected zones in
between the targeted areas. The key differences between eMatrix
and other fractional lasers are that there is very little epidermal
disruption (5%) with relatively wider, deep dermal heating.
Study: We conducted clinical study to assess the clinical efficacy
and safety in 16 Korean patients. As the purpose of this study was
also to find the optimal parameters for better outcome, different
parameter (A mode vs. C mode) was assigned randomly to split
faces of 16 patients. Ten patients were treated randomly with A or
C mode in one cheek and with C or A mode in the other cheek,
respectively, with 3–5 sessions of 3- to 4-week interval. The other
six patients were treated in only one cheek with five sessions and
after then were treated in the other untreated cheek with
different parameter. Clinical evaluations for the improvement
and possible side effects were conducted every session, 8 weeks
and up to 7 months after the last treatment.
Results: All 16 patients showed improvement in skin brightness,
skin tightness and wrinkles. Ten and six of patients had > 75%
and 51–75% improvement, respectively. Typical initial response
to treatment was mild to moderate erythema and edema which
resolved within usually 1–5 days depending on applied energy.
There was no postinflammatory hyperpigmentation developed.
Conclusion: Fractional bipolar RF device, the eMatrix is
effective and safe treatment for skin rejuvenation in Korean
patients.
#229
American Society for Laser Medicine and Surgery Abstracts 67
EFFECTIVE SCAR TREATMENT USING A
FRACTIONAL 1,440 OR 1,540 NM LASER
EQUIPPED WITH A POINT-ARRAY
COMPRESSION OPTIC
Arielle Kauvar, David Vasily, Christine Dierickx
New York Laser & Skin Care, New York, NY; Aesthetica Cosmetic
& Laser Center, Bethlehem, PA; Skin and Laser Center, Boom,
Belgium
Background: Treatment of scars appears to require remodeling
of the abnormal dermal architecture, which often exceeds 1 mm in
depth. Previous studies have shown that a fractional point-array
compression optic (PCA) used with either 1,440 or 1,540 nm lasers
can increase microbeam (mB) penetration and minimize
epidermal disruption. This study observed the effects of this PCA
optic with 1,440 or 1,540 nm lasers on scars.
Study: This was an observational study of over 100 subjects with
a wide variety of scars, including hypertrophic and keloidal, burn,
traumatic, surgical, acne and hyperpigmented scars. Following
application of a topical anesthetic, a 1,440 or 1,540 nm laser with a
14 by 14 mm array PCA (XD TM , Palomar Medical Technologies,
Inc.) delivered 49 mB with 2 mm pitch. Pulses were delivered with
50% overlap in the vertical and horizontal direction or using a
novel approach for a surface coverage of approximately 30–40%.
Treatments occurred at 4- to 6-week intervals, and hypertrophic
scars were treated adjuvantly with a topical corticosteroid.
Results: Scar height, thickness, color and pliability improved at
least 50% in 24 of the 26 subjects who have already completed
follow-ups. In two subjects with erythematous, symptomatic
keloidal scars, treatment had no effect and was discontinued after
two sessions. The number of treatment sessions ranged from one
to four. Post-treatment erythema and pinpoint micro-crusts
persisted for 1 to 2 weeks. Two phototype IV subjects treated with
the 1,440 nm laser experienced transient hyperpigmentation, but
there were no other adverse effects. Studies with both these lasers
are ongoing and additional safety and efficacy data will be
presented.
Conclusion: A 1,440 or 1,540 nm laser with a fractional pointarray
compression tip significantly improved the appearance of a
wide variety of scar types, with minimal anesthesia requirements
and recovery times following high coverage treatment with high
energies.
#230
CLINICAL EVALUATION OF A NON-INVASIVE
CRYOLIPOLYSIS FOR THE TREATMENT OF
SUBCUTANEOUS FAT REMOVAL IN KOREAN
PATIENTS
Hyunjoo Kim, Donghye Suh, Jiyoung Park,
Jiho Rhue, Sangjun Lee, Kyeyoung Song,
Minkyung Shin, Chulsu Ok
Anacli Dermatologic Clinic, Sungnam, South Korea; Anacli
Dermatologic Clinic; JungAng University; KyungHee University;
Mediscope Clinic, Seoul, South Korea
Background: Fat cells are more cold-sensitive than other cells,
including epidermis. Cryolipolysis is a new method of noninvasive
fat layer reduction, which has been shown to significantly
reduce fat layer thickness without damage to the skin or other
surrounding tissues. To evaluate the safety and efficacy profile of
cryolipolysis for fat layer reduction of the abdomens or flanks in
Koreans.
Study: Twenty-five subjects with fat bulges on their abdomens or
flanks (‘‘love handles’’) were treated unilaterally or bilaterally
with a non-invasive cooling device (Zeltiq Aesthetics, Pleasanton,
CA). The results were evaluated based on clinical photos before
and after session, physician assessments. Computed tomography
and microscopic pathology were being performed at pretreatment
and posttreatment in some patients.
Results: Photographic, physician assessment showed
cryolipolysis results in a visible contour change in 20 subjects 6
months later. Five subjects were developed petechia on their skin
after treatment. This was almost completely disappeared after 1
week.
Conclusion: Cryolipolysis is a very low risk, no downtime
procedure that produces consistent observations of modest,
gradual fat layer reductions in properly selected patient.