PMID- 23545926 OWN - NLM STAT- MEDLINE DCOM- 20130920 LR - 20140731 IS - 1545-9616 (Print) IS - 1545-9616 (Linking) VI - 12 IP - 3 DP - 2013 Mar TI - The evaluation of hyaluronic acid, with and without lidocaine, in the filling of nasolabial folds as measured by ultrastructural changes and pain management. PG - e46-52 AB - BACKGROUND: Pain management is an important objective in procedures involving dermal fillers composed of hyaluronic acid (HA). OBJECTIVE: To compare the 1-year clinical results of filling the nasolabial fold with 2 types of filler: large-gel particle HA and large-gel particle HA plus 0.3% lidocaine (HA+L). We compared the level of pain during treatment and 10 minutes after treatment and assessed the safety and efficacy profile, satisfaction, and histological findings (using reflectance confocal microscopy [RCM]). MATERIALS AND METHODS: We performed a comparative, parallel-group, double-blind trial with an external observer (blinded to the type of treatment administered). The filler was applied to the nasolabial fold in 119 patients (HA in 62 patients and HA+L in 57). Patients were followed at months 3, 9, and 12. Pain was evaluated using a visual analog scale. Efficacy and satisfaction were evaluated using the Wrinkle Severity Rating Scale and the Global Aesthetic Improvement Scale. RCM images (n=32) were taken at baseline and at months 3 and 12. RESULTS: Pain: The severity of pain was decreased in patients treated with HA+L on application (P <.001) and 10 minutes later ( P=.008). Efficacy and satisfaction: No significant differences existed between the 2 groups at months 3, 9, and 12. RCM: Skin rejuvenation occurred with a 32% increase in the height of the dermoepidermal junction at month 12 (P <.001), which was similar in both groups. Adverse events: At month 3, the most common adverse events (AEs) were erythema (68%) and hematoma (11%). No AEs were recorded at months 9 or 12. CONCLUSION: The use of HA+L provides pain relief without affecting efficacy, satisfaction, safety, or the duration of results. RCM showed that the changes in the dermoepidermal junction represented a histological improvement in the skin with similar results in both groups. FAU - Royo de la Torre, Josefina AU - Royo de la Torre J AD - Servicio de Dermatologia, Instituto Medico Laser, Madrid, Spain. consulta@iml.es FAU - Moreno-Moraga, J AU - Moreno-Moraga J FAU - Isarria, Maria J AU - Isarria MJ FAU - Munoz, Estefania AU - Munoz E FAU - Cruz, Irene AU - Cruz I FAU - Perez, Gema AU - Perez G FAU - Cornejo, Paloma AU - Cornejo P LA - eng PT - Comparative Study PT - Journal Article PT - Randomized Controlled Trial PL - United States TA - J Drugs Dermatol JT - Journal of drugs in dermatology : JDD JID - 101160020 RN - 0 (Anesthetics, Local) RN - 0 (Gels) RN - 9004-61-9 (Hyaluronic Acid) RN - 98PI200987 (Lidocaine) SB - IM MH - Adult MH - Aged MH - Anesthetics, Local/administration & dosage/adverse effects MH - *Cosmetic Techniques/adverse effects MH - Double-Blind Method MH - Female MH - Follow-Up Studies MH - Gels MH - Humans MH - Hyaluronic Acid/*administration & dosage/adverse effects MH - Lidocaine/*administration & dosage/adverse effects MH - Male MH - Microscopy, Confocal MH - Middle Aged MH - Nasolabial Fold MH - Pain/*drug therapy/etiology MH - Pain Measurement MH - Patient Satisfaction MH - Rejuvenation MH - Severity of Illness Index MH - Skin Aging MH - Time Factors EDAT- 2013/04/03 06:00 MHDA- 2013/09/21 06:00 CRDT- 2013/04/03 06:00 PHST- 2013/04/03 06:00 [entrez] PHST- 2013/04/03 06:00 [pubmed] PHST- 2013/09/21 06:00 [medline] AID - S1545961613E0046X [pii] PST - ppublish SO - J Drugs Dermatol. 2013 Mar;12(3):e46-52.