Anesthetic management in a patient with Arnold-Chiari malformation type 1,5: A case report.

A 42-year-old male patient with Arnold-Chiari malformation type 1,5 (ACM-1,5) came to implant a hip prosthesis. He underwent a previous general anesthesia, with difficult airway management and complication in awakening. In this second surgery, an extradural approach was preferred to keep intracranial pressure and hemodynamics stable.