The Emervel French survey: a prospective real-practice descriptive study of 1,822 patients treated for facial rejuvenation with a new hyaluronic acid filler.

BACKGROUND: Emervel consists of a range of 5 hyaluronic acid (HA) fillers (Touch, Classic, Lips, Deep, and Volume), with a fixed HA concentration (20 mg/mL), and various degrees of cross-linking and calibration. OBJECTIVES: To describe the current use of Emervel fillers in France. METHODS: Prospective multicenter, cross-sectional, real-practice, descriptive survey, including 1,822 patients injected with Emervel fillers for face rejuvenation by 58 French physicians between September 2010 and July 2011. The injection modalities were left to the respective physician's discretion. RESULTS: The physicians were dermatologists (52.3%), surgeons (43.8%), or general practitioners (14.1%). Nasolabial folds (NLF) with a mean severity 2.4 were mainly injected with Emervel Deep (51.0%) and Emervel Classic (36.0%) (mean volume: 1.0 mL), and primarily with the linear retrograde (LR) technique (89.3%). Marionette lines (ML), with a mean severity 2.6 were mainly injected with Emervel Deep (52.5%) and Emervel Classic (34.6%) (mean volume: 0.8 mL), and mainly with the LR technique (79.5%). More than 90% of patients had scores of 0 or 1 for erythema, bruising, edema, and pain. No serious adverse events were reported up to 15 months after the injection. CONCLUSION: These data could contribute to upcoming international consensus on optimal injection modalities of the Emervel range of HA fillers.