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Long-term outcome in children with congenital unilateral facial nerve palsy
1Department of Neurology, University Children's Hospital, Zurich, Switzerland.
Insights
Congenital unilateral facial nerve palsy in children often results in poor functional outcomes, particularly in non-traumatic cases. Most cases are not due to birth trauma, indicating a need for further research into underlying causes.
Area of Science:
- Pediatric Neurology
- Neonatal Care
- Ophthalmology
Background:
- Congenital unilateral facial nerve palsy (CUFNP) is a rare condition affecting newborns.
- Understanding the etiology and prognosis of CUFNP is crucial for appropriate patient management.
Purpose of the Study:
- To investigate the clinical characteristics, etiology, and prognosis of isolated congenital unilateral facial nerve palsy in a pediatric cohort.
- To evaluate the effectiveness of neuroimaging in diagnosing the cause of CUFNP.
Main Methods:
- Retrospective case series of 12 children diagnosed with isolated CUFNP between 1980 and 1999.
- Clinical data including delivery method, affected facial region, and functional recovery were analyzed.
- Conventional neuroimaging findings were reviewed.
Main Results:
- Full recovery was observed in one forceps-delivered infant within two months.
- Poor functional improvement was noted in most non-traumatic delivery cases.
- The lower facial region was predominantly involved in 10 out of 12 children.
- Cognitive outcomes were generally normal, with one exception.
- Neuroimaging did not reveal significant pathogenetic insights.
Conclusions:
- The majority of congenital unilateral facial nerve palsies are idiopathic, not traumatic.
- Congenital unilateral facial nerve palsy, especially in non-traumatic cases, carries a generally poor functional prognosis.
- Further research is needed to elucidate the pathogenesis of CUFNP.
Abstract:
During a 20-year period (1980 - 1999) 12 children with isolated congenital unilateral facial nerve palsy were seen at our hospital. The only child delivered by forceps made a full recovery from his palsy within two months, whereas functional improvement in patients with non-traumatic delivery was generally poor. In two patients the palsy affected predominantly the upper periocular region. In 10 children the lower facial region seemed to be mainly involved. Cognitive outcome was within normal limits, with one exception. Conventional neuroimaging was not contributory to the understanding of the pathogenetic mechanisms. We conclude that the majority of congenital unilateral facial nerve palsies are not of traumatic origin and carry a poor functional prognosis.
