Generic sevoflurane

Orginal sevoflurane

Induction for anesthesia will be achieved with sevoflurane A and Sevoflurane B in total of 100 randomized (American Society of Anesthesiology status I-II) patients undergoing abdominal surgery. During the induction patients will be asked to breath as deep as possible and then hold their breaths to the point where they cannot anymore and flexing their right arm. Occurrence of hypnosis will be confirmed with both the loss of eyelash-reflex and failing of flexed-holding arm. Time and number of breaths needed for the loss of consciousness will be noted. Existence of hiccup, cough, increase in secretions, and refusal of the mask by the patient will be reported if any. All patients will be extubated and released to the ward after they are questioned about any discomfort or issue they want to report to anesthesiologist

After the induction and occurrence of hypnosis, Systemic arterial pressure (SAP) values will be noted. Tracheal intubation will be performed and post-intubation SAP values will be noted. The SAP values will noted in the 5th minute of the induction.