Analysis and Evaluation of Nasal Angles in Non-Surgical Rhinoplasty with Hyaluronic Acid
DOI:
https://doi.org/10.59334/ROV.v2i43.666Keywords:
hyaluronic acid, nasal remodeling, non-surgical rhinoplasty, nasolabial angle, facial profile analysisAbstract
Background: Studies show the efficacy and safety of nasal reshaping with hyaluronic acid. However, there is little evidence on the clinical parameters modified to achieve an aesthetic improvement in the nasal profile. In aesthetic analysis, the nasolabial angle has often been used to evaluate the rotation of the nasal tip in non-surgical rhinoplasty, a parameter dependent on the position of the upper lip. The researchers declare no conflicts of interest. Objective: The purpose of this study is to demonstrate the changes induced by non-surgical rhinomodelling in the nasal profile by measuring the nasolabial angle traced on soft tissues and the new nasal angle proposed by the authors. Additionally, the study highlights the efficacy and safety of nasal reshaping with hyaluronic acid. Methods: This is a prospective open-label study where the outcome of rhinoplasty treatment with cannula (23G x 38 mm) was evaluated in 25 adult patients (treated in the areas of the nasal spine, columella, and supratip) using a maximum of 0,6 ml of hyaluronic acid. Results: Twenty-five patients participated in this study (22 women and 3 men) with an average age of 34 years. An average of 0.33 ± 0.11 ml of hyaluronic acid was infiltrated during the procedure. Twenty-two patients underwent this procedure for the first time during this study, while the other three had undergone between 1 to 3 previous procedures. Only two patients required a second intervention, using an average of 0.18 ml. Nasolabial angles before and after treatment were measured; on average, this increased from 89.3 ± 11.3° to 98.4 ± 8.2° (average change of 9.1 ± 7.3°). No complications were recorde. Conclusion: Statistically significant changes were observed when comparing the nasolabial angle measurements before and after the procedure, with an average increase of 9º, as determined through nasal profile analysis and subsequently tested in STATA 11 (P=0.0000). Additionally, given that the nasolabial angle may vary due to aging and modifications in perioral structures, it is necessary to measure another angle to assess nasal tip projection.
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