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Clinical Trial Summary

The purpose of this study is to compare the difference of incidence of postoperative delirium between patients received general anesthesia guided by Bispectral index (BIS) and patients received general anesthesia using standard technique.


Clinical Trial Description

General anesthesia is one of precipitating factor of postoperative delirium which Its mechanism is still unknown. General anesthesia can affect on pattern of electroencephalograph. Previous studies showed that patients received BIS guided anesthesia could wake up faster, earlier extubation and stay in recovery room shorter compared to standard general anesthesia. Optimized level of anesthesia by BIS could reduce cognitive dysfunction in elderly patients and reduce biological marker of brain injury. Therefore, the investigators hypothesized that adjustment of general anesthesia by BIS guided could protect central nervous system and reduce incidence of postoperative delirium. ;


Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Outcomes Assessor), Primary Purpose: Prevention


Related Conditions & MeSH terms


NCT number NCT02133430
Study type Interventional
Source Chiang Mai University
Contact Dr. Yodying Punjasawadwong, MD
Phone +66819928082
Email typunja@gmail.com
Status Recruiting
Phase Phase 2/Phase 3
Start date January 2014
Completion date April 2015

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