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临床试验/CTRI/2025/09/094482
CTRI/2025/09/094482尚未招募不适用

Analyzing bispectral index electrode placement: Comparisons between frontal and mandibular v/s frontal and postauricular locations, followed by intergroup analysis

Artemis Health Institute1 个研究点 分布在 1 个国家目标入组 130 人开始时间: 2025年9月30日最近更新:

试验速览

阶段
不适用
状态
尚未招募
发起方
入组人数
130
试验地点
1
主要终点
The primary aim of this study is to evaluate the validity of alternative placements of the Bispectral Index

研究概览

简要总结

Introduction The Bispectral Index is a widely used tool for monitoring the depth of anesthesia, derived

from electroencephalography (EEG) signal analysis. Accurate BIS readings are crucial for optimal

anesthetic management. Traditional frontal electrode placement is sometimes impractical, necessitating

exploration of alternative placements.

Objective To compare the accuracy and reliability of BIS readings from frontal, mandibular, and frontal

post-auricular electrode placements and conduct inter-group analysis to determine the most effective

alternative to the frontal placement.

Methods

Study Design: A prospective, comparative observational study.

Participants: 130 patients undergoing neurosurgeries with neuro anesthesia, randomized into two

groups (65 per group) based on electrode placement: frontal, mandibular, and frontal , post-

auricular.

Data Collection: BIS readings, signal quality index (SQI), and electromyography (EMG) scores

were recorded at six stages: pre-anesthesia, induction, muscle relaxation maintenance, closure,

and extubation.

Analysis: Statistical methods will be used to compare BIS values, SQI, and EMG scores across

different placements and between groups. Correlation coefficients will be assessed with the

agreement between frontal and alternative placements.

Keywords: Bispectral Index, BIS, electrode placement, anesthesia monitoring, EEG, frontal, mandibular,

post-auricular, patient safety.

研究设计

研究类型
Interventional
分配方式
Coin toss, Lottery, toss of dice, shuffling cards etc
盲法
None

入排标准

年龄范围
18.00 Year(s) 至 65.00 Year(s)(—)
性别
All

入选标准

  • Adults aged 18 and above and below 65 yrs
  • ASA physical status I or II
  • Scheduled for various neurosurgical , cranial and spinal procedures.

排除标准

  • Presence of skin lesions or scars at potential sensor sites that could impede sensor placement or function.
  • Allergies: Known hypersensitivity to adhesives or materials used in BIS sensors.
  • Bearded individuals for mandibular placement of electrodes
  • GCS less than 15.

结局指标

主要结局

The primary aim of this study is to evaluate the validity of alternative placements of the Bispectral Index

时间窗: The time points would be the following | 1. Baseline | 2. 90 seconds after administration of fentanyl and propofol | 3. 3 mins after giving muscle relaxant | 4. At intubation | 5. At the time of first pain stimulus | 6. Every 30 s into the procedure | 7. At extubation

sensor—specifically the mandibular and post auricular positions—compared to the traditional frontal

时间窗: The time points would be the following | 1. Baseline | 2. 90 seconds after administration of fentanyl and propofol | 3. 3 mins after giving muscle relaxant | 4. At intubation | 5. At the time of first pain stimulus | 6. Every 30 s into the procedure | 7. At extubation

placement, in measuring the depth of anesthesia during surgical procedures.

时间窗: The time points would be the following | 1. Baseline | 2. 90 seconds after administration of fentanyl and propofol | 3. 3 mins after giving muscle relaxant | 4. At intubation | 5. At the time of first pain stimulus | 6. Every 30 s into the procedure | 7. At extubation

次要结局

  • Practicality of Sensor

研究者

发起方
Artemis Health Institute
申办方类型
Private hospital/clinic
责任方
Principal Investigator
主要研究者

Shivani Fotedar

Artemis Health Institute

研究点 (1)

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