RESUMEN
PURPOSE: To enhance lips ageing rejuvenation with specific microcannula and hyaluronic acid. METHOD: Clinical review was conducted from December 2010 to December 2011 among 46 patients complaining of predictable changes on lips and perioral region such as deficiency in contour definition, volume and projection. Lips rejuvenation injections were made using the hyalurostructure technique. RESULTS: Forty-two patients (92%) with a 6-month follow-up were satisfied or very satisfied with the aesthetic results after the hyalurostructure of the lips and the perioral region rejuvenation. The use of the specially designed cannula led to fewer complications. We noticed 40 oedemas (87%) that appeared 24-48 h after the injection and seven patients (15.2%) with haematomas. We noted fewer surface irregularities and a better distribution of the product. Patients' records showed the procedure was painless. CONCLUSION: The hyalurostructure technique reduces the number of punctures compared to that of the conventional method. The microcannula's blunt tip reduces the risks of intravascular injection of the substance and of reach and disruption of the key structures like vessels and nerves. Results revealed that the hyalurostructure used for lips rejuvenation and helps to maintain a natural effect and avoids pain.
Asunto(s)
Técnicas Cosméticas , Ácido Hialurónico/administración & dosificación , Labio , Rejuvenecimiento , Adulto , Catéteres , Técnicas Cosméticas/efectos adversos , Técnicas Cosméticas/instrumentación , Edema/etiología , Femenino , Hematoma/etiología , Humanos , Labio/anatomía & histología , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Envejecimiento de la Piel , Encuestas y Cuestionarios , Adulto JovenRESUMEN
A new version of the PROGRA2 instrument, dedicated to measuring the polarization phase function of various kinds of solid particles, allows obtaining maps of polarization and brightness with a spatial resolution of a few tens of micrometers. The measurements are conducted in microgravity during parabolic flights to ensure random distribution and orientation of the particles. The results of the first two sessions are presented. Comparison between measurements and Mie theory modeling for glass spheres shows that the instrument works well and that accurate results can be obtained even at small phase angles. Results for irregularly shaped particles are also presented.