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Hyaluronic Acid Fillers, Needle Contamination by Fastidious Microorganisms, and Risk of Complications

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BACKGROUND Complications are becoming ever more common with the increased use of hyaluronic acid (HA) fillers in aesthetic medicine. Complications due to needle contamination with fastidious microorganisms are no exception.… Click to show full abstract

BACKGROUND Complications are becoming ever more common with the increased use of hyaluronic acid (HA) fillers in aesthetic medicine. Complications due to needle contamination with fastidious microorganisms are no exception. OBJECTIVE To perform, in a top Italian aesthetic medicine facility, what the authors think is the first monitoring program of microbial needle contamination of cross-linked HA gel fillers after the prefilled syringes with gel residues were stored for retouches after the first aesthetic procedure. METHODS Needle contamination monitoring study, performed between January and November 2019, on 35 needles (caliber, 30 and 27 G) stored at 4°C in their resealed filler packages for possible retouch after a first aesthetic treatment involving the middle and lower facial thirds. Women's age: 35 to 70 years old. RESULTS The search for contaminating agents of the 3 monitored bacterial contaminants (Staphylococcus aureus, Streptococcus pyogenes, and anaerobes) as well as yeasts and molds always tested negative. In the days and months after treatment, no patients in post-treatment controls showed evidence of infection in the treated areas. CONCLUSION The observational retrospective study confirms that good storage conditions, including monitored refrigeration, avoid the risk of contamination of partially used HA gel fillers by fastidious microorganisms.

Keywords: fastidious microorganisms; needle contamination; contamination; hyaluronic acid; acid fillers; medicine

Journal Title: Dermatologic Surgery
Year Published: 2022

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