목적: Facial nerve reanimation surgery aims to restore function and improve quality of life for patients with facial paralysis. While the clinical outcomes are often evaluated, the electrophysiological aspects remain underreported, especially in smaller case series. To evaluate the electrophysiological outcomes following facial nerve reanimation surgery in a single-institute case series of 14 patients. 방법:This retrospective study analyzed 14 cases of facial nerve reanimation surgery performed at our institution from 2021 to 2024. Electrophysiological assessments, including nerve conduction studies and electromyography (EMG), were conducted post-operatively to evaluate nerve function and muscle reinnervation. Clinical data, surgical techniques, and patient demographics were also collected and analyzed. 결과:Of the 14 patients, 6 underwent triple reinnervation, 5 underwent dual reinnervation, and 3 underwent single reinnervation combined with muscle transfer surgery. Postoperative assessments showed significant improvement in nerve conduction latency and EMG activity in 75% of the cases. Clinically, patients demonstrated changes after 1 year of surgery. Needle EMG results showed increased MUAP polyphasity and discrete interference pattern after nerve reinnervation. Especially nerve reinnervation to orbicularis oculi muscle showed best improvement. 결론:Electrophysiological outcomes provide valuable insights into the success of facial nerve reanimation surgery. This case series highlights the importance of integrating objective nerve function assessments alongside clinical evaluations to guide postoperative management and improve patient outcomes.