[1] Sanatorio Pasteur, Neurointens Care Unit, Catamarca, Argentina
[2] Hosp Leonidas Lucero, Intens Care Unit, Buenos Aires, DF, Argentina
[3] San Camillo Lellis Gen Hosp, Neurol Serv, Rieti, Italy
[4] SMDN Ctr Cardiovasc Med & Cerebrovasc Dis Prevent, Neurol Sect, Sulmona, Laquila, Italy