Post-traumatic Delayed Facial Nerve Palsy: Report of 2 Cases and Systematic Review

Objective: Delayed facial nerve palsy (dFNP) secondary to head injury is definitely uncommon. Although the mechanism of immediate facial nerve paralysis is well-studied, its delayed presentation remains debated. Given the dearth of available information, we reported herein our experience with 2 cases of posttraumatic dFNP. This systematic review aimed to evaluate all available information on dFNP and to assess treatment outcome also comparing conservatively and surgically approaches. Data Sources: Pubmed, Scopus, and Web of Science databases were systematically screened. Review Methods: The protocol of this investigation was registered on PROSPERO in April 2023 and the systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses statement. Results: Both patients in the case studies showed a complete recovery within 2 to 3 months after the head trauma. One of them still reported a subjective taste alteration at last control. After t...