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[Cerebral ptosis. Analysis of six cases]
Luis Cartier R1, Jorge Parra1, Juan P Contreras S1
1Departamento Ciencias Neurológicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Background:
Cerebral ptosis is understood as the bilateral paralysis of eyelid elevation linked to a stroke or hemorrhage of the middle cerebral artery (MCA). It is a transient condition, independent of the evolution of the lesion.
Aim:
To analyze six patients with the condition.
Patients And Methods:
Report of five women and one male aged 42 to 72 years.
Results:
All suffered an infarction or hemorrhage in the territory of the middle cerebral artery of the non-dominant hemisphere and developed a bilateral palpebral ptosis. The recovery started after the fourth day. At the tenth day, eye opening was effortless and did not require frontal help, despite the persistence of hemiplegia.
Conclusions:
Cerebral ptosis is a mimetic dysfunction of a specific non-injured area of the cerebral cortex, originated from a nearby parenchymal damage such as the middle cerebral artery of the same hemisphere. Cerebral ptosis expresses the inhibition of the voluntary eyelid elevation center, of prefrontal location in the non-dominant hemisphere.
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