Effects of Dexmedetomidine on Postoperative Cognitive Dysfunction During One-lung Ventilation in Elder Patients
Conditions
Interventions
- DRUG: Induction of anesthesia,midazolam ,sufentanil,etomidate and rocuronium
- DRUG: Dexmedetomidine
- DRUG: Normal saline
- DRUG: Maintenance of anesthesia , propofol, remifentanil,vecuronium
Sponsor
Tang-Du Hospital