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  • Title: Value of the facial nerve latency test in the prognosis of childhood Bell's palsy.
    Author: Danielides VG, Skevas AT, Panagopoulos K, Kastanioudakis I.
    Journal: Childs Nerv Syst; 1992 May; 8(3):126-8. PubMed ID: 1319281.
    Abstract:
    In the present study we evaluated the facial nerve latency test (FNLT) as a prognostic tool in cases of childhood Bell's palsy. Twenty-five children aged 4-14 years were studied. We divided our subjects into three groups according to duration of latency time (LT). Group A patients had an LT within the normal range, with average of 3.27 ms, group B a slightly prolonged LT averaging 5.7 ms, and group C a markedly prolonged LT averaging 10.5 ms. Analysis of the recovery index by group showed that group A patients experienced complete and quick recovery, while in group B 50% had complete but delayed recovery and 50% slightly impaired facial nerve function, and in group C 50% had slightly impaired function and 50% incomplete recovery. The more prolonged the LT, the worse the clinical results. The FNLT is thus a valuable prognostic tool in cases of Bell's palsy in childhood.
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