86
Participants
Start Date
March 31, 2013
Primary Completion Date
August 31, 2013
Study Completion Date
September 30, 2013
Morphine
Morphine group,receive morphine 0.08 mg / kg at the start of surgery
Methadone
Methadone group,receive methadone 0.08 mg / kg at the start of surgery
TIVA
TIVA: General anesthesia will be based on Remifentanil and Propofol (TIVA-TCI), titrated to achieve bispectral index (BIS) between 40 and 60.
Almirante Nef Naval Hospital, Viña del Mar
Universidad de Valparaiso
OTHER