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Hemodynamic InstabilityNCT03653910

Effect-site Concentration of Remifentanil for Double-lumen Tubes Intubation: Airtraq VS Macintosh Laryngoscope

A study testing Airtraq and Macintosh in people with Hemodynamic Instability and Intubation Complication, run by Huazhong University of Science and Technology 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 50% effective concentration of remifentanil by target controlled infusion was not determined for inhibiting the haemodynamic response during double-lumen tube (DLT) intubation. Previous study showed that Airtraq videolaryngoscope provided more stable haemodynamics than Macintosh for double-lumen tube intubation. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
What is being tested?
Airtraq and Macintosh
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
62 participants
Where
1 siteChina
Study dates
3 Sep 2018to 17 May 2019
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 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • American Society of Anesthesiologists physical status of I-II
  • Patients aged 18-65 years
  • BMI 18-35 kg/m2
  • Elective pulmonary surgery under general anesthesia to double-lumen tubes intubation
  • Mallampati classifications Ⅰ-Ⅱ

Who cannot join

  • Emergency operation
  • Anticipated difficult airway or history of intubation difficulties
  • Be allergic to any of the drugs used in the experiment, or have a history of drug allergy
  • Preoperative use of analgesic, sedative and other drugs
  • Uncontrolled hypertension and heart disease
  • Have a history of heavy smoking and alcohol abuse, serious drug abuse, and severe systemic infections
  • There are severe mental and nervous system symptoms, and patients cannot cooperate with the study, such as language comprehension disorder, mental illness, etc
  • Other clinical trials were conducted within 3 months prior to inclusion in the study

Trial locations and contacts

1 site in 1 country.

China1 site
  • Tongji Hospital, Huazhong University of Science and Technology

    Wuhan, Hubei, 430030

Other trials in China

About this study

Official title: Effect-site Concentration of Remifentanil for Inhibiting Cardiovascular Responses to Double-lumen Tube Intubation With Airtraq Videolaryngoscopy: a Comparative Study With Macintosh Laryngoscopy

The 50% effective concentration of remifentanil by target controlled infusion was not determined for inhibiting the haemodynamic response during double-lumen tube (DLT) intubation. Previous study showed that Airtraq videolaryngoscope provided more stable haemodynamics than Macintosh for double-lumen tube intubation. In this study, the investigators will compare the 50% effective concentration of remifentanil between Airtraq videolaryngoscope and Macintosh laryngoscope for inhibiting haemodynamic responses during DLT intubation.

Read the detailed description

Dixon "up-and-down" method was used to determine 50% effective concentration of remifentanil by target controlled infusion for inhibiting the haemodynamic responses during DLT intubation with Airtraq videolaryngoscope or Macintosh laryngoscope.

Being tested
Airtraq, Macintosh
Keywords
double-lumen tube intubation, remifentanil, target controlled infusion

What participants receive

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

  • AirtraqDevice

    Airtraq is a kind of videolaryngoscope for intubation

  • MacintoshDevice

    Macintosh is a traditional laryngoscope for intubation

Study groups in NCT03653910
Study groupRoleWhat they receive
AirtraqExperimentalPatients received DLT intubation by Airtraq videolarygoscope
Receives: Device: Airtraq
MacintoshActive comparatorPatients received DLT intubation by Macintosh laryngoscope
Receives: Device: Macintosh

What is being measured

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

  1. Remifentanil TCI effect site concentration

    preestablish remifentanil TCI effect site concentration(ng/ml)

    Measured: through study completion, an average of 20 min

Secondary outcomes (3)
  1. mean arterial pressure

    mean arterial pressure in mmHg

    Measured: at entering the operation room(T1), at immediately before DLT intubation(T2), at immediately after DLT intubtion(T3), at 1 minute(T4)/2 minutes (T5)/3 minutes(T6) after DLT intubation

  2. heart rate

    heart rate in bpm

    Measured: at entering the operation room(T1), at immediately before DLT intubation(T2), at immediately after DLT intubtion(T3), at 1 minute(T4)/2 minutes (T5)/3 minutes(T6) after DLT intubation

  3. Narcotrend index

    Narcotrend index in Arabic numerals

    Measured: at entering the operation room(T1), at immediately before DLT intubation(T2), at immediately after DLT intubtion(T3), at 1 minute(T4)/2 minutes (T5)/3 minutes(T6) after DLT intubation

Timeline

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

  1. First posted31 Aug 2018
  2. Study start3 Sep 2018
  3. Primary completion10 May 2019
  4. Study completion17 May 2019

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
62 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03653910
Sponsor's protocol ID
TJMZK20180713
Status last verified
May 2019
First submitted
6 Aug 2018
Last updated
21 May 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Airtraq and Macintosh in people with Hemodynamic Instability and Intubation Complication, run by Huazhong University of Science and Technology 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 5 inclusion and 8 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 21 May 2019. 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?

Remifentanil TCI effect site concentration (time frame: through study completion, an average of 20 min). 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 21 May 2019.

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