title: The myasthenic patient in crisis: an update of the management in Neurointensive Care Unit.
abstract: Myasthenia gravis (MG) is an autoimmune disorder affecting neuromuscular transmission leading to generalized or localized muscle weakness due most frequently to the presence of autoantibodies against acetylcholine receptors in the postsynaptic motor end-plate. Myasthenic crisis (MC) is a complication of MG characterized by worsening muscle weakness, resulting in respiratory failure that requires intubation and mechanical ventilation. It also includes postsurgical patients, in whom exacerbation of muscle weakness from MG causes a delay in extubation. MC is a very important, serious, and reversible neurological emergency that affects 20-30% of the myasthenic patients, usually within the first year of illness and maybe the debut form of the disease. Most patients have a predisposing factor that triggers the crisis, generally an infection of the respiratory tract. Immunoglobulins, plasma exchange, and steroids are the cornerstones of immunotherapy. Today with the modern neurocritical care, mortality rate of MC is less than 5%.
authors.affiliation: Intensive Care Unit, Hospital San Juan Bautista, Catamarca, Argentina.
authors.forename: Daniel Agustin
authors.initials: DA
authors.lastname: Godoy
authors.forename: Leonardo Jardim Vaz de
authors.initials: LJ
authors.lastname: Mello
authors.forename: Luca
authors.initials: L
authors.lastname: Masotti
authors.forename: Mario
authors.initials: M
authors.lastname: Di Napoli
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D009157:Myasthenia Gravis / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D012307:Risk Factors; D012720:Severity of Illness Index