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

60 American Society for Laser Medicine and Surgery Abstracts
was treated at a fluence of 50–55 J/cm 2 and a spot size of 8 mm.
Treatments were performed at 2-month intervals. Cryogen spray
cooling was used.
Results: Flattening of the blue nevi was observed after six
treatment sessions with the alexandrite laser. Side effects
included mild blistering and moderate scabbing. The treatment
area healed without scarring. Hyperpigmentation or
hypopigmentation were not present in the treated area.
Conclusion: The 755 nm alexandrite laser is a safe and effective
treatment for agminated blue nevi arising within a congenital
melanocytic nevus.
#205
LOW FREQUENCY ULTRASOUND FOR
NON-INVASIVE FAT CONTOURING
Joseph Cervone
UMDNJ, West Orange, NJ
Background: A burgeoning search for non-invasive technologies
as alternative to traditional liposuction has been fueled by
perioperative risks for lack of acceptable cosmetic appearance and
adequate skin tightening. In this series we examine the efficacy of
noninvasive transepidermal low frequency ultrasound (Vaser
Shape—Sound Surgical Technologies) to eliminate fat cells
through use of cavitation without need for topical or tumescent
anesthetic. Changes in circumferential measurements areas of
lipodystrophy in the abdomen, back and flanks were recorded and
digitally photographed.
Study: Seven subjects, 39–58 years old underwent one to five
treatments administered across areas at 5 10 in. bilaterally
with the Vaser Shape (Sound Surgical Technologies) utilizing
dual transducers delivering ultrasonic energy at modulated
presets. Each subject had a minimum of five minutes of manual
lymphatic drainage massage prior to and following treatments.
The ultrasound treatments were followed at 4- to 5-day intervals
by a zonal massage to the previously treated areas administered
by the integrated handpiece. We examine the results achieved
from seven patients treated in the abdominal, back or flank areas.
Skin temperatures of 38–448C were reached and monitored
directly thru the transducers in the ultrasound handpiece. Static
photographs and circumferential measurements were taken pre
and post each treatment to quantify reductions in measurements
and assess changes in skin laxity.
Results: Significant reductions in circumferential measurements
and skin tightening were achieved in all subjects without any
significant discomfort or adverse events. Erythema seen during
each treatment was self-limited resolving within hours. The range
of circumferential measurement reductions was from 300
00
4 to 3.5
with an average of 2.5 cm.
Conclusion: Transepidermal ultrasound showed safety and
efficacy in reduction of fatty deposits as evidenced by decreased
circumferential measurements with significant improvement in
skin laxity.
#206
TREATMENT WITH DUAL WAVELENGTH 1,550 NM
AND 1,927 NM FRACTIONAL LASER FOR FACIAL
SKIN REJUVENATION IN ASIANS
Nicola P.Y. Chan, Johnny C.Y. Chan,
Mona L.S. Chiu, Henry H.L. Chan
The University of Hong Kong; Prince of Wales Hospital,
Hong Kong, China
Background: The objective of this study was to assess the
efficacy and side effects of dual wavelength treatment with
fractional 1,550 nm erbium-doped fiber laser and a novel 1,927 nm
thulium fiber laser for facial skin rejuvenation in Asians. The
combination wavelengths aimed to achieve both deep and
superficial resurfacing within one treatment.
Study: Each patient received one full-face treatment with two
passes of 1,550 nm laser followed by two passes of 1,927 nm laser.
Standardized photos were taken with the Canfield Visia CR
system at baseline, 1 month and 3 months post-treatment, and
were assessed by two independent physicians.
Results: Eight Chinese female patients were included. The
energy levels for 1,550 nm laser and 1,927 nm laser were 40 and
10 mJ, respectively. The total densities (MTZ/cm 2 ) ranged from 66
to 114 for 1,550 nm laser; and 144–222 for 1,927 nm laser.
Preliminary results demonstrated statistically significant
improvement in skin texture (P ¼ 0.01), skin laxity (P ¼ 0.01),
wrinkles (P ¼ 0.01), enlarged pore (P ¼ 0.026) and overall
pigmentation irregularity (P ¼ 0.017) at last follow-up. The
degree of improvement was graded as slight to moderate.
Erythema was seen in one patient at last follow-up. No
hyperpigmentation was recorded. All patients were satisfied with
the treatment at 3 months follow-up.
Conclusion: A single treatment with the dual wavelength lasers
achieved significant clinical improvement with a good safety
profile for facial skin rejuvenation in Asians.
#207
HOME-USE HAIR REMOVAL DEVICES: DO THEY
HAVE THE PARAMETERS DECLARED?
Esther Cuerda, Jose Luis Lopez-Estebaranz,
Jesus del Pozo-Losada, Maria Angustias Palomar,
Rafael Linares
Fundación Universitaria Hospital Alcorcón; Universidad Rey
Juan Carlos, Madrid, Spain; Hospital Universitario Juan
Canalejo, A Coruna, Spain
Background: Hair removal is one of the most demanded cosmetic
treatments. The home use hair removal devices is expanding and
there are an increasing number of devices available to consumer,
most of them intense pulsed light (IPL) but other systems as diode
laser are available too.
Study: This study compared three home devices for hair removal:
Silkn (Home Skinovations Ltd, Israel), iPulse (CyDen Ltd, UK)
and Tria (SpectraGenics, Inc., CA, USA). Parameters measured
were: emitted wavelength spectrum, fluence, time of emission,
frequency and spatial distribution of the energy. Practical
questions as weight, spot size, battery duration, application
simplicity, lamp duration or time necessary for epilation were
measured.
Results: This study, using established measure methods, has
shown that all parameters, except emitted wavelength spectrum,
were different from declared by manufacturer. They had different
pulse duration: Silkn (not declared by manufacturer; 5.01–
5.1 milliseconds measured), iPulse (25–60 milliseconds declared
by manufacturer; 26–61 milliseconds measured), Tria (125–
600 milliseconds declared by manufacturer; 5 milliseconds
measured), and fluences: Silkn (5 J/cm 2 declared by
manufacturer; 2.8–4.2 J/cm 2 measured), iPulse (7–10 J/cm 2
declared by manufacturer; 7–10 J/cm 2 measured but in different
energy levels than declared), Tria (6–24 J/cm 2 declared by