A Study on Otorhinolaryngologist Perspective of Etiology and Outcomes in Lower Motor Neuron Facial Palsy: A Single Centre Experience Over a Year.

To analyse the aetiology and outcomes of all patients attending otorhinolaryngology department for Lower Motor Neuron type facial palsy over one year. STUDY DESIGN-Retrospective study. SETTING-SRM medical college hospital and research institute, Chennai from Jan 2021 to December 2021. SUBJECTS-23 patients with LMN facial palsy in the ENT department were analysed. METHOD-Details about the onset of facial palsy, history of trauma, surgeries were collected. Facial palsy grading according to House Brackmann was done. Relevant investigations, neurological assessments, appropriate treatment, facial physiotherapy, eye protection and relevant surgical management were carried out.Outcomes were assessed by HB grading. Among 23 patients, mean age of presentation of LMN palsy is 40.39 ± 15.0 years. According to House Brackmann staging 21.73% had grade 5 facial palsy, 43.47% had grade 4,30.43% of patients had grade 3 and 4.34% had grade 2 facial palsy. 9 patients (39.13%) had facial palsy due to idiopathic cause, 6 (26.08%) had facial palsy due to otologic cause, 3(13.04%) due to Ramsay hunt syndrome and post traumatic in 8.69% of patients. Parotitis in 4.3% of patients and iatrogenic in 8.69% of patients. 18(78.26%) patients were treated medically alone and 5 (21.73%) patients required surgery.Mean duration of recovery is 28.52 ± 12.6 days. In follow up, 21.73% of patient had grade 2 facial palsy and 76 .26% of patients had recovered completely. Facial palsy in our study had very good recovery due to early diagnosis and early start of appropriate treatment.