Quantitative evaluation of skin shrinkage associated with non-invasive skin tightening: a simple method for reproducible linear measurement using microtattoos.
Lasers Med Sci
; 34(4): 703-709, 2019 Jun.
Article
en En
| MEDLINE
| ID: mdl-30280300
ABSTRACT
Non-invasive skin-tightening devices can induce thermal denaturation and skin shrinkage via externally applied radiofrequency emissions or high-frequency ultrasound. Therefore, the purpose of this study is to develop and test a method for measurement of skin reduction associated with application of such energy devices. Twenty-five healthy participants with mild to moderate skin laxity of the arms were enrolled. Pinpoint microtattoos were placed at each of the treatment sites to delineate two 6 × 12 cm rectangles per subject. A non-stretchable filament, tape and marking pen apparatus was used to measure the size of each rectangle before treatment and at follow-up visit by two blinded investigators. After randomization, one side received a single pass with a radiofrequency device (6.78 MHz), while the contralateral side received multiple passes. Participants underwent two treatment sessions to each side 2 weeks apart, and returned for follow-up 4 weeks after the second treatment. Length and area measurement were analyzed to assess precision and accuracy of measurements and to compare efficacy of treatment between pre- and post-treatment. Concordance correlation coefficients (CCC) demonstrated substantial inter-investigator reliability and precision in length measurements (CCC, 0.94 to 0.98 in pre-treatment; 0.95 to 0.98 in post-treatment). Measurements at the 6-week post-treatment follow-up demonstrated a statistically significant skin reduction in all six of the measured parameters. A simple skin measurement method requiring minimal instrumentation can quantitatively evaluate skin shrinkage associated with non-invasive skin-tightening devices.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Piel
/
Tatuaje
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Envejecimiento de la Piel
Tipo de estudio:
Clinical_trials
/
Risk_factors_studies
Límite:
Adult
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Aged
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Female
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Humans
/
Middle aged
Idioma:
En
Revista:
Lasers Med Sci
Asunto de la revista:
BIOTECNOLOGIA
/
RADIOLOGIA
Año:
2019
Tipo del documento:
Article
País de afiliación:
Estados Unidos