Study protocol for thermographic analysis of the nasolabial fold region in women submitted to hyaluronic acid filling

INTRODUCTION: Due to the increasing number of cases with immediate and late complications caused by the action of facial fillers such as hyaluronic acid (HA), there is an urgent need to better evaluate the effect of these aesthetic and functional procedures. In this sense, it is relevant to use Infrared Thermography (IRT) as an auxiliary tool for the diagnosis of local dysfunctions. This diagnostic method allows the professional who applies the injections to be certain about the condition of the microcirculation of the anatomical site being treated, enabling the possibility of early intervention in case of adverse effects, such as the development of microbubbles, vascular compression, among other conditions. OBJECTIVE: The aim is to describe the thermal coefficient of the nasolabial sulcus (NLF) region of patients undergoing HA filling, using TRI. METHODS AND MATERIALS: This is a prospective study involving 25 female patients from a private clinic. Thermal imaging will be performed before, immediately after, 1 hour, 3 hours, and 1 month after filling the NLF region with AH. Study approved by CAAE: 34546620.7.0000.5544. RESULTS: The result of this study will allow preventive follow-up and early intervention in cases of vascular alterations related to facial fillings with AH.