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논문 기본 정보

자료유형
학술저널
저자정보
Young-Koo Kim (Yonsei Star Skin and Laser Clinic Seoul Korea) Hae-Jin Lee (Yonsei A&B Skin Clinic Seoul Korea) Jihee Kim (Yongin Severance Hospital Yonsei University College of Medicine Yongin Korea)
저널정보
대한의학레이저학회 MEDICAL LASERS MEDICAL LASERS 제9권 제2호
발행연도
2020.1
수록면
159 - 165 (7page)

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Medical Lasers; Engineering, Basic Research, and Clinical Application 159 Original Article Potential Efficacy of Multiple-shot Long-pulsed 1,064-nm Nd:YAG in Nonablative Skin Rejuvenation: A Pilot Study Background and Objectives The ultimate goal in current skin rejuvenation practice is to achieve a good result with minimal pain and downtime. Nonablative skin rejuvenation (NSR) is one technique. The efficacy of the long-pulsed 1064 nm Nd:YAG laser (LPNDY) has not been assessed in NSR. Materials and Methods Three target areas were selected (bilateral cheeks and glabellar region) in six volunteer subjects. A LPNDY with an integral skin temperature monitor delivered three stacked shots to each target area (1064 nm, 12 mm spot, 13 J/cm2, 1 Hz) without any skin cooling or anesthesia. The skin temperature was recorded before, during, and after each set of shots using the system monitor and in real-time using a high-sensitivity (±0.001°C) near-infrared video camera. The skin reaction was observed with the naked eye, and pain and discomfort were assessed by the subjects during and after treatment. Results The subjects reported a mild feeling of heat with no discomfort during or after the test treatments. Mild erythema was observed around the treatment areas, without noticeable edema. A series of three ascending skin temperature stepwise peaks, with a decrease in skin temperature towards the baseline after the third shot, was observed consistently. The mean temperatures for shots 1, 2, and 3 for the cheeks were 39.5°C, 42.0°C, and 44.4°C, respectively, and for the glabella, 40.8°C, 43.9°C, and 46.2°C, respectively. Similar ranges were indicated on the system integral temperature monitor. Conclusion A set of three stacked pulses with the LPNDY at a low fluence achieved ideal dermal temperatures to achieve some dermal remodeling but without any downtime or adverse events. The temperature data from the integral thermal sensor matched the video camera measurements with practical accuracy for skin rejuvenation requirements. These data suggest that LPNDY would satisfy the necessary criteria to achieve effective NSR, but further studies will be needed to assess the actual results in clinical practice.

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