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The Influence of Low- and High-Negative-Pressure Liposuction and Different Harvesting Sites on the Viability and Yield of Adipocytes and Other Nucleated Cells
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SYSNO ASEP 0550891 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The Influence of Low- and High-Negative-Pressure Liposuction and Different Harvesting Sites on the Viability and Yield of Adipocytes and Other Nucleated Cells Author(s) Molitor, M. (CZ)
Trávníčková, Martina (FGU-C) RID, ORCID, SAI
Měšťák, O. (CZ)
Christodoulou, P. (CZ)
Sedlář, Antonín (FGU-C) ORCID
Bačáková, Lucie (FGU-C) RID, ORCID
Lucchina, S. (CH)Source Title Aesthetic Plastic Surgery - ISSN 0364-216X
Roč. 45, č. 6 (2021), s. 2952-2970Number of pages 19 s. Language eng - English Country US - United States Keywords adipocyte ; ASC ; negative pressure ; liposuction ; fat grafting Subject RIV EI - Biotechnology ; Bionics OECD category Biomaterials (as related to medical implants, devices, sensors) R&D Projects NU20-08-00208 GA MZd - Ministry of Health (MZ) ED1.1.00/02.0109 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LQ1604 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FGU-C - RVO:67985823 UT WOS 000661362700001 EID SCOPUS 85107851907 DOI 10.1007/s00266-021-02396-z Annotation Background:The volume effect of fat grafting is highly dependent on the presence of viable adipocytes and other nucleated cells within the lipoaspirate. We suspected that one of the crucial factors influencing cell viability is the negative pressure applied during the fat graft harvesting and the suitability of various harvest sites when compared to others. Despite much discussion, there is no consensus on the optimal negative pressure or the best site for harvesting so we designed an experiment to test this.Methods:Fat graft taken under low negative pressure (− 200 mmHg) or high negative pressure (− 700 mmHg) from the thigh or abdominal regions from 21 healthy human donors was evaluated. The principal variables studied were: a) total number and viability of nucleated cells, b) liposuction duration and c) blood admixture. Other variables studied were body mass index, the impact of age and enzymatic digestion.Results:The absolute number and viability of nucleated cells and the blood admixture did not differ significantly between lipoaspirates obtained under different vacuum conditions or from different regions. The time taken to acquire the same volume of lipoaspirate was significantly increased using low negative pressure. The time taken to collect cells in the thigh region significantly increased with increasing BMI but this correlation was not found when harvesting in the abdominal region. The BMI and age did not impact the results in any of the measured variables. The enzymatic digestion rate was independent of the negative pressure used to harvest.Conclusion:Our results indicate that neither the negative pressure used nor the area chosen has any significant influence on the viability and yield of harvested cells. The time taken to obtain lipoaspirate using low pressure is significantly longer than when using high pressure. No significant difference was found in the value of blood admixture using different vacuum pressures, and no correlation exists between the body mass index and the cell viability or age of the patients and the time of liposuction. Workplace Institute of Physiology Contact Lucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400 Year of Publishing 2022 Electronic address https://doi.org/10.1007/s00266-021-02396-z
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