Efficacy and safety of 1440-nm Nd:YAG laser on lower face and neck rejuvenation.

Abstract

Reviewing the literatures, we did not found-to our knowledge-any study using the Nd:YAG laser with wavelength 1440nm in assisted liposuction and rejuvenation of the head and neck region although of the higher absorption rate for fat and water. Evidence-based practice supports the benefits of laser-assisted liposuction over conventional liposuction with skin tightening in selected areas specifically the submental area and the neck. The aim of the work is to evaluate the efficacy and safety of Nd:YAG laser wavelength (WL) 1440nm on lipolysis of submental area and skin tightening of the lower face and neck area. Fifty-seven patients with submental localized fat deposits and mild to moderate skin laxity were subjected to laser liposuction using Nd:YAG laser with WL 1440nm (SmartLipo Triplex)® device. The efficacy of skin laxity improvement was assessed together with the whole satisfaction rate for each patient. Overall satisfaction rate was 97% of the patients. One sample test regarding skin laxity showed significant improvement (34.6%) after 6months follow-up (0.268 SD p < 0.05) (Table 4). Complications included edema, soreness, weakness in the lower lip, and ecchymosis that resolved conservatively except one case that complained of seroma which needed aspiration and healed without infection. In conclusions, Nd:YAG laser with WL 1440nm can be used safely and effectively for submental-assisted liposuction and lower face and neck rejuvenation. Less laser energy was needed for lipolysis and skin tightening as the fat and water have a higher absorption rate at wavelength 1440nm.