Reimagining Bell’s Palsy Care: Integrating Evidence-Based Medicine, Surgical Innovation, and Neurorehabilitative Advances

Sana Shaik; Bhavana Gouda; Aditi Balan; Eisha Naveed; Snehakshi Roy; Nidhi Vadhavekar

doi:10.51168/sjhrafrica.v7i3.2346

Authors

Sana Shaik Tbilisi State Medical University
Bhavana Gouda Shimoga Institute of Medical Sciences, Rajiv Gandhi University of Health Sciences, Karnataka
Aditi Balan ACS Medical College and Hospital, Chennai
Eisha Naveed Liaquat University of Medical and Health Sciences, Jamshoro
Snehakshi Roy Gauhati Medical College and Hospital, Guwahati, Assam, India
Nidhi Vadhavekar Padmashree Dr D Y Patil School of Medicine

DOI:

https://doi.org/10.51168/sjhrafrica.v7i3.2346

Keywords:

Bells Palsy, HSV-1 reactivation, electrodiagnostics, surgical decompression

Abstract

The most prevalent cause of acute unilateral lower motor neuron facial paralysis is Bell's palsy due to reactivation of herpes simplex virus type 1, which causes intraneural inflammation and edema in the narrow labyrinthine portion of the Fallopian canal. Recent evidence reiterates the use of early corticosteroid therapy as the gold-standard intervention by which full recovery can be achieved, with significant enhancement of complete recovery rates in cases where early antiviral therapy is used, but only in cases of severe muscular paralysis or suspected viral reactivation. Electrodiagnostic studies involving electroneuronography (ENoG) and electromyography (EMG) continue to play a central role in prognostication and surgical decision-making, with over 90% degeneration predicting poor spontaneous recovery as well as the small group who might benefit in terms of early facial nerve decompression through transmastoid or middle cranial fossa surgeries. In patients who have suffered irreversible paralysis, the late-stage reanimation procedures, such as nerve transfers, cross-facial nerve grafts, and free functional muscle transfer, can be of significant use in providing dynamic movement and facial symmetry. Neuromuscular retraining, biofeedback, photobiomodulation, and specific botulinum toxin therapy are also included in the rehabilitation modalities that contribute further to the improvement of functional outcomes and control of synkinesis. The latest technological developments, such as 3D photogrammetry, deep-learning-based facial movement quantification, and multi-omics profiling, make it possible to achieve individual diagnostic accuracy and treatment planning more and more. This study aims to enhance the perspective of adjunctive therapies, improve the application of surgical criteria, and develop predictive models that can lead to optimal patient care.

References

Bell’s palsy is the most common cause of acute unilateral lower motor neuron facial paralysis and is widely attributed to herpes simplex virus type 1 reactivation, leading to intraneural inflammation and edema within the narrow labyrinthine segment of the Fallopian canal. Although most patients recover spontaneously, a substantial proportion experience incomplete recovery, chronic weakness, or synkinesis, underscoring the need for optimized, evidence-based management. Current evidence consistently supports early corticosteroid therapy within 72 hours of symptom onset as the cornerstone of treatment, significantly improving rates of complete recovery. Adjunctive antiviral therapy appears to confer additional benefit only in selected patients with severe paralysis or suspected viral reactivation. Electrodiagnostic studies, particularly electroneuronography and electromyography, remain critical for prognostication and surgical decision-making, with ≥90% degeneration predicting poor spontaneous recovery and identifying the small subset of patients who may benefit from early facial nerve decompression via transmastoid or middle cranial fossa approaches. For patients with irreversible paralysis, late-stage facial reanimation techniques, including nerve transfers, cross-facial nerve grafting, and free functional muscle transfer, offer meaningful improvements in dynamic facial movement and symmetry. Rehabilitation plays a central role across all stages of care. Neuromuscular retraining, biofeedback, photobiomodulation, and targeted botulinum toxin therapy have demonstrated benefit in improving functional outcomes and reducing synkinesis. Emerging technologies, such as three-dimensional photogrammetry, deep-learning-based facial movement analysis, and multi-omics profiling, promise greater diagnostic precision and individualized treatment planning. Overall, contemporary management of Bell’s palsy requires a multidisciplinary, evidence-based approach integrating early medical therapy, selective surgical intervention, structured rehabilitation, and evolving AI-driven assessment tools to optimize patient outcomes.