The investigators aimed to search effect of magnesium Sulfate on extubation quality scores, recovery and pain in larynx micro surgery. The patients allocated to two groups to receive magnesium sulfate 30 mg/kg in 100 ml saline infusion (maximum 2g) (Group m) or saline 100 ml (Group S) before induction of anesthesia. Anesthesia induction performed with propofol 2 mg/kg, rocuronium 0.6 mg/kg, remifentanil 0.5 µg/kg and general anesthesia maintained with total intravenous anesthesia (propofol 3-7 mg/kg, remifentanil 0.05-0.1 µg/kg/min and O2/air 30/70 mixture) to the all patients. Extubation quality scores, Extubation time, NRS scores were assessed.

The investigators aimed to search effect of magnesium sulfate on extubation quality, recovery feature and complications.98 adult patients scheduled for larynx laser microsurgery were included and randomly allocated to two groups to receive magnesium sulfate 30 mg/kg in 100 ml saline infusion (maximum 2g) (Group m) or saline 100 ml (Group S) before induction of anesthesia. Anesthesia induction performed with propofol 2 mg/kg, rocuronium 0.6 mg/kg, remifentanil 0.5 µg/kg and general anesthesia maintained with total intravenous anesthesia (propofol 3-7 mg/kg, remifentanil 0.05-0.1 µg/kg/min and O2/air 30/70 mixture) to the all patients. Paracetamol 15 mg/kg applied to all patients.Extubation quality score, extubation time, stay in postanesthesia unit (PACU) time, numeric rating scale (NRS) and complications were recorded.

Inclusion Criteria:

• 18 age over
• American society of Anesthesiology (ASA) clinical status I-III
• the patients who experience larynx micro surgery

Exclusion Criteria:

• under 18 years old
• ASA IV and over
• severe airway obstruction
• neuromuscular disease
• presence of tracheostomy