불완전 회복된 안면신경 마비 환자에서 보톡스를 이용한 안면 불균형 교정 = Usefulness of Botulinum Toxin Injection in Rehabilitation of Facial Paralysis: Improving Mouth Angle Asymmetry

다국어 초록 (Multilingual Abstract)

Background and Objectives：A number of surgical procedures exist to improve facial symetry for patients with facial plex coordinated movements of facial expression. The paralyzed face is often distorted by the excesive pull of the normal contralateral face during emotional expression. We report the use of botulinum toxin in patients with facial paralysis to improve lower facial asymmetry by limiting the excesive pull of contralateral face. Subjects and Method：Ten adult patients with unilateral facial paralysis were included in this study. Patients had injections at contralateral facial muscle which were zygo-cial symerty and patient appreciation of this were assesed by measuring the level diference of both mouth angles and diference in the distance from the midline to both mouth angles before and 1 month after injection. Also patients were asked to fill up the questionnaire about the magnitude of efect and any related side efects of injection at 1 month folow up. Results：Botox injection decreased the level diference of both mouth angle and diference of distance from midline to both mouth angles in ro-vement in expresive facial asymmetry after botulinum toxin injection into normal lower face. Conclusion：Botulinum toxin injection is a useful ancillary technique for improving dynamic facial asymmetry of the paralyzed face. (Korean J Otor -hinolaryngol-Head Neck Surg 2007 ;50 :1087-91)

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