Prognostic factors for the outcome of Bells' palsy: A cohort register‐based study

Abstract

Objectives There is a lack of data on patients' and diagnostic factors for prognostication of complete recovery in patients with Bell's palsy. Design and setting Cohort register‐based study of 368 patients with Bell's palsy and uniform diagnostics and standardised treatment in a university hospital from 2007 to 2017 (49% female, median age: 51 years). Main outcome measures Clinical data, facial grading, electrodiagnostics, motor function tests, non‐motor function tests and onset of prednisolone therapy were assessed for their impact on the probability of complete recovery using univariable and multivariable statistics. Results Median onset of treatment was 1.5 days. 46% of patients had a House‐Brackmann scale at baseline of ≥ III. The median recovery time was 2.6 months (95% confidence interval [CI] = 2.1‐3.0). 54.9% achieved a complete recovery. If prednisolone therapy started later than 96 hours after onset, the recovery rate decreased significantly. Beyond less severe palsy, no abnormal electroneurography side difference, no pathological spontaneous activity in electromyography and normal stapedius reflex testing were the most powerful tool for prognostication of recovery after Bell's palsy. Conclusion Beyond severity of the palsy, facial electrodiagnostics and stapedius reflex testing are the most powerful tool for prognostication of recovery time after Bell's palsy. Prednisolone therapy should have started at best within a time window of 96 hours after onset to reach the highest probability of complete recovery.

Role of Body Dysmorphic Disorder in Patients With Postparalytic Facial Synkinesis

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Non-idiopathic peripheral facial palsy: prognostic factors for outcome

“…To overcome this limitation, Kaplan-Meier statistics were used to determine the probability of complete recovery over time. which started within a time window of 96 h after onset, had the highest probability of complete recovery [15].…”

Protracted COVID-19 during Treatment of Facial Palsy

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