What is the prevalence of congenital facial paralysis?

Updated: Jan 07, 2019
  • Author: Alan D Bruns, MD, FACS; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Congenital facial paralysis accounts for 8-14% of all pediatric cases of facial paralysis. [2] The incidence of facial paralysis in live births is 0.8-2.1 per 1000 births, and, of these, 88% are associated with a difficult labor. Of patients with birth trauma, 67-91% are associated with forceps delivery. [3, 4, 5] Developmental causes include those associated with syndromes and teratogens. An example of a development cause is Möbius syndrome, which has an incidence of 1 per 50,000 births. [6] A common disorder that resembles a unilateral partial nerve paralysis is congenital unilateral lower lip palsy (CULLP), also known as neonatal asymmetric crying facies, that occurs in 1 out of 160 live births. [7]  The estimated prevalence of facioscapulohumeral muscular dystrophy (FSH MD) is between 1/20,000 and 1/8000, making it the world’s third-most-common inherited myopathy. [8]

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