Although there's clinical evidence of successful autologous fat transfer (AFT), such as in Brazilian Butt Lift, using VASER liposuction is readily available, no study has quantified adipocyte viability using standardized methods until recently.
The UAL system (VASER; Sound Surgical Technologies, Inc, Louisville, Colorado) was set at 60% amplitude in pulsed mode with vacuum aspiration of 15 in Hg or less.
Laboratory analysis included free lipid volume, viability via lipolysis and propidium iodide staining, and cytological analysis, including cell surface protein examination and hematoxylin and eosin staining.
The lipolysis assay revealed metabolically active adipocytes with a mean (SD) correlative viability of 85.1%
Direct measures of acute viability via propidium iodide staining resulted in a mean (SD) viability measure of 88.7%
Adipose tissue acquired via VASER liposuction is viable at harvest and isa suitable source for autologous fat grafts, especially for Brazilian Butt Lift.
Adiposed-derived stem cells (fat for fat transfer) obtained via VASER liposuction were of equal quality when directly compared with the current gold standard harvest method according to a study conducted by Duscher. "UAL- and SAL-derived samples demonstrated equivalent ASC yield and viability, and UAL ASCs were not impaired in their osteogenic, adipogenic, or chondrogenic differentiation capacity."
Duscher, et al. Ultrasound-Assisted Liposuction Does Not Compromise the Regenerative Potential of Adipose-Derived Stem Cells. Stem Cells Transl Med. 2016 Feb;5(2):248-57. doi: 10.5966/sctm.2015-0064. Epub 2015 Dec 23.
Schafer, et al. Acute adipocyte viability after third-generation ultrasound-assisted liposuction. Aesthet Surg J. 2013 Jul;33(5):698-704. doi: 10.1177/1090820X13485239. Epub 2013 May 29.