Abstract
We evaluated the role of electromyography (EMG) in assessing orofacial neurological dysfunction in 81 infants with Pierre Robin sequence (PRS). Needle EMG of muscles of the face, tongue, and soft palate, and blink responses were recorded. A two-channel EMG recorded sucking and swallowing during bottle feeding. Neurogenic EMG signs were detected in facial or oral muscles in 17 of 24 associated PRS and 1 of 57 isolated PRS cases (P < 0.0001). Soft palate muscles showed low-amplitude traces in 41.4% of patients who required two surgical steps for cleft palate repair and 18.5% of those who required only one step. Regarding EMG study during bottle feeding, patients with moderate or severe abnormalities of oral/pharyngeal coordination required more prolonged enteral feeding than patients with mild abnormalities or normal coordination (P = 0.002). Combined EMG methods were useful in the treatment of infants with PRS. EMG detection of cranial nerve involvement strongly suggests an associated form of PRS.
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