Effect-site Concentration of Remifentanil for Blunting Hemodynamic Responses to Double-lumen Endobronchial Intubation

Comparison of the Effect-site Concentration of Remifentanil for Blunting Hemodynamic Responses to Ordinary Tracheal and Double-lumen Endobronchial Intubation During Propofol-remifentanil Total Intravenous Anesthesia

The purpose of this study is the comparison of the effect-site concentration of remifentanil for blunting hemodynamic responses to ordinary tracheal and double-lumen endobronchial intubation during propofol-remifentanil total intravenous anesthesia.

Inclusion Criteria:

• Adult patient who is needed intubation for general anesthesia

Exclusion Criteria:

• patient who is anticipating difficult airway
• patient who takes any drug to influence this study
• cardiovascular disease, renal disease, liver disease