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Anesthesia MonitorNCT04562181

Consistency Evaluation of the qCON, qNOX Indices and Bispectral Index

A study testing Bispectral index and qCON/qNOX monitoring in people with Anesthesia Monitor and Electroencephalography, run by China Medical University, China at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The first objective of this work is to compare the performances of three electroencephalogram based indices, the qCON index, the qNOX index and the bispectral index (BIS), in patients receiving gastrointestinal surgery during first postoperative night. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Anesthesia Monitor, Electroencephalography, Sleep
What is being tested?
Bispectral index and qCON/qNOX monitoring
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteChina
Study dates
30 Sep 2020to 5 Nov 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Ethnic Chinese;
  • Age: from 18 to 80 years old;
  • Hospitalized patients

Who cannot join

  • Cognitive difficulties
  • Mental diseases
  • Without an informed consent
  • Inability to cooperate with the researcher's requirements
  • Deprivation of the human right by an administrative or juridical entity
  • Ongoing participation or participation in another study within 1 month
  • Night surgery

Trial locations and contacts

1 site in 1 country.

China1 site
  • Wen-fei Tan

    Shenyang, Liaoning, 110001

Other trials in China

About this study

Official title: Consistency Evaluation of the qCON, qNOX Indices and Bispectral Index in Detecting Hypnotic and Nociception Level During and After General Anesthesia in Gastrointestinal Surgery Patients

The first objective of this work is to compare the performances of three electroencephalogram based indices, the qCON index, the qNOX index and the bispectral index (BIS), in patients receiving gastrointestinal surgery during first postoperative night. Secondly, their behaviors under general anesthesia are also pointed out.

The qCON and qNOX indices are implemented in an Angel 6000 monitor (WellHealth Medical Co Ltd., Shenzhen, China), and BIS indices are recorded in a BIS monitor (Aspect Medical Systems, Norwood, MA, USA).

Data will be obtained from 30 patients scheduled for selective surgery undergoing general anesthesia with a combination of propofol, sufentanil and cis-atracurium in the first Hospital of China Medical University. The values of qCON, qNOX and BIS were statistically compared. The qCON, qNOX indices are recorded together with BIS during the whole operation period (Awake- Anesthesia-Recovery stages), as well as during the first night postoperatively (from 8:00pm to 06:00am). The values of qCON, qNOX and BIS were statistically compared. The Consistency evaluation will be conducted between qCON/qNOX and BIS.

Read the detailed description

This study was approved by the ethics committee of China Medical University. The study will be carried out in the 1st Hospital of China Medical University. Thirty patients scheduled for selective gastrointestinal surgery undergoing general anesthesia will be enrolled. There are two steps in this study: In step1, The qCON and qNOX indices will be continuously recorded throughout the whole surgery, using a Angel-6000 monitor (WellHealth Medical Co Ltd., Shenzhen, China). Meanwhile, the bispectral index (BIS) will be recorded using Aspect BIS monitor (Aspect Medical Systems, Norwood, MA, USA) in the same patient in order to compare with qCON and qNOX.

The general anesthesia protocol is as following: Anesthesia will be induced with bolus infusion of propofol, sufentanil and cis-atracurium intravenously. The patients will be intubated subsequently. TOF (T4/T1) value will be observed throughout using muscle relaxation monitoring (GE healthcare, USA). Anesthesia are maintained with a combination of sevoflurane, propofol, sufentanil and cis-atracurium. Dosage of the anesthetics will be adjusted according to the BIS value and hemodynamics fluctuating. Anti-emetic and opioids will be routinely administrated prior to abdominal closure. Neostigmine will be administrated for reversing the residual neuromuscular blockade after the patient get his breath. Tracheal extubating is indicated by a TOF value above 70% in addition to other physical signs. The qCON, qNOX and BIS indices will be continuously recorded before anesthesia induction (fully awake), during the operation (sleep) and after the operation (fully recovery). The dosage of propofol, sufentanil and cis-atracurium used in the operation are also recorded.

In step2, all these three electroencephalogram-based indices are collected again at the 1st postoperative night. The Angel-6000 and Aspect BIS monitor will be placed again to the identical patient who have received the operation on the daytime. Data collecting period is from 8:00 pm to 6:00 am the next day. Sleep was defined as the duration of BIS value below 80 in the 10 hours of monitoring (from 8:00pm to 6:00am).

If there are specific requirements for management with regards to postoperative pain or any other anesthesia related complications, name and the dosage of the treatments will also be recorded.

Being tested
Bispectral index and qCON/qNOX monitoring

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Bispectral index and qCON/qNOX monitoringOther

    This study will characterise the bispectral index data and qCON/qNOX index data in 30 patients during the operation and first postoperative night

Study groups in NCT04562181
Study groupRoleWhat they receive
InterventionsExperimentalAnesthesia will be induced with bolus infusion using propofol, sufentanil and cis-atracurium intravenously. The patients will be intubated subsequently. TOF (T4/T1) will be calculated continuously using muscle relaxation monitoring. Anesthesia are maintained with a combination of sevoflurane, propofol, sufentanil and cis-atracurium. Anti-emetic and opioids will be routinely administrated prior to abdominal closure. Neostigmine will be administrated for reversing the residual neuromuscular blockade after the patient get his breath. Tracheal extubating is indicated by a TOF value above 70% in addition to other physical signs.
Receives: Other: Bispectral index and qCON/qNOX monitoring

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. qCON/qNOX indices of the first postoperative night

    This study will characterise the qCON/qNOX index data in 30 patients during first postoperative night

    Measured: on the first postoperative night

Secondary outcomes (1)
  1. qCON/qNOX indices data during operation

    This study will characterise qCON/qNOX index data in 30 patients receiving gastrointestinal surgery under general anesthesia

    Measured: from the beginning to the end of surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Sep 2020
  2. Study start30 Sep 2020
  3. Primary completion10 Oct 2021
  4. Study completion5 Nov 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04562181
Sponsor's protocol ID
20200915
Status last verified
Nov 2021
First submitted
14 Sep 2020
Last updated
9 Nov 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Bispectral index and qCON/qNOX monitoring in people with Anesthesia Monitor and Electroencephalography, run by China Medical University, China at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Nov 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

qCON/qNOX indices of the first postoperative night (time frame: on the first postoperative night). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Nov 2021.

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