PubMed · 242304
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E M Helveston. 1975. Strabismus.. https://doi.org/10.1001/archopht.1975.01010020899013
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Between January 1966 and December 1988, 160 pediatric patients (age range, 0 to 17 years) were seen at the Mayo Clinic with an acquired oculomotor (35 patients), trochlear (19 patients), abducent (88 patients), or multiple (18 patients) cranial nerve palsy. The clinical findings in the 160 pediatric patients were compared with the results obtained in other reviews of cranial nerve palsies in the pediatric age group and with the adult Mayo Clinic patients with acquired cranial nerve palsies. Trauma was the most common reason for an acquired cranial nerve palsy in our pediatric group. The percentage of patients with an acquired cranial nerve palsy resulting from trauma was significantly greater in the pediatric group (42.5%) than in adults (15.4%) (P < .01). The difference between the percentage of adults (15.2%) and pediatric patients (16.9%) with a cranial nerve palsy secondary to a neoplasm was not statistically significant (P = .28).
We collected data from a large series of patients with ocular palsies and compared them with data in previous series from the Mayo Clinic. The largest group of patients among 4,278 cases was that in which the cause was undetermined for a long period of follow-up. The abducens nerve was most commonly affected. The probability of establishing a diagnosis was higher in patients younger than 50 years and among those with associated neurologic findings or multiple ocular palsies. The prognosis for recovery was best in the vascular group but was better than 50% for all groups except those with tumors. Investigation may be tailored to each patient according to clinical findings and probabilities of finding a cause, and judicious clinical judgement should be exercised.