Abstract
Purpose
The purpose of this study is to describe a case series of infants with isolated congenital sixth nerve palsy (ICSNP) and suggest a management algorithm based on our experience and a review of the literature.
Methods
A retrospective cohort design was used. The clinical database of a single tertiary medical center was reviewed to identify all patients diagnosed with ICSNP from January 2020 to November 2022. Data were collected as follows: demographic parameters, age at initial presentation, presenting symptoms and signs, findings on ophthalmic and neurologic examinations, findings on follow-up, and outcome.
Results
Six patients were included. All were born at term. The average gestational weight was 3675.7 ± 262.7 g. Three mothers had gestational diabetes. Five deliveries necessitated labor induction either by oxytocin (n = 4) or by membrane strip** followed by oxytocin (n = 1). One had also gone a forceps assisted delivery.
Symptoms were noticed in all newborns by their parents within the first week of life. Ophthalmological and neurological examinations were otherwise unremarkable apart of one patient with a head turn to the side of the involved eye. Four patients underwent brain imaging that were unremarkable. All abduction deficits resolved by 1 to 3 months of age. Follow up examinations were unremarkable (mean follow up 14.3 ± 5.0 months, range 4–23).
Conclusions
This case series, together with previous reports, support ICSNP’s benign nature. We suggest an initial basic work-up that solely includes ophthalmological and neurological examinations which will be elaborated in case of any additional pathologic findings or if ICSNP does not fully resolve by 3 months.
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Ehrenberg, M., Dotan, G., Friling, R. et al. Do infants with isolated congenital sixth nerve palsy require comprehensive work-up? A retrospective cohort and review of the literature. Graefes Arch Clin Exp Ophthalmol 262, 967–973 (2024). https://doi.org/10.1007/s00417-023-06199-7
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DOI: https://doi.org/10.1007/s00417-023-06199-7