USO DA TOXINA BOTULÍNICA NO TRATAMENTO DA PARALISIA FACIAL: Revisão de literatura

Abstract

This study aims to analyze the use of botulinum toxin type A in the treatment of facial paralysis, emphasizing its therapeutic, functional, and aesthetic effects. It is a qualitative literature review with an exploratory and descriptive character, conducted through searches in PubMed and SciELO, considering publications from the last 5 years. After applying inclusion and exclusion criteria, 25 studies were selected for analysis. The results show that botulinum toxin acts by blocking the release of acetylcholine at nerve endings, promoting temporary muscle relaxation. This mechanism contributes to the reduction of spasms, synkinesis, and involuntary movements. However, the treatment requires periodic reapplications due to itstemporary nature and dependence on technique and professional experience. In conclusion, botulinum toxin represents an effective, safe, and minimally invasive therapeutic alternative in the management of facial paralysis, especially when combined with other rehabilitation approaches.