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CompletedNCT06116955Updated Jan 31, 2024

The Application of Balanced Propofol Sedation in Fiberoptic Bronchoscopy

An observational study in Bronchoscopy, sponsored by The Affiliated Hospital of Qingdao University. Completed at 1 site in China. Open to participants aged 18 Years to 100 Years. Per ClinicalTrials.gov, last updated 2024-01-31.

Sponsored by The Affiliated Hospital of Qingdao University · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
424
Ages
18 Years to 100 Years
Sex
All
01

Study summary

The purpose of this study is to investigate the feasibility of using balanced propofol sedation for bronchoscopy. And screen out the optimal balanced propofol sedation compatibility plan.

Read the detailed description

Balanced propofol sedation (BPS) is a technique proposed and developed by gastroenterologists. In recent years, multiple studies have confirmed that the use of BPS in gastrointestinal endoscopy can not only ensure patient comfort, but also reduce the incidence of respiratory and circulatory suppression. Moreover, the postoperative recovery time is short. Even for non-anesthesiologists applying BPS in gastrointestinal endoscopy , it has high safety.

Compared with gastrointestinal endoscopy, bronchoscopy occupies the respiratory tract and most patients have respiratory system diseases. Therefore, it is more necessary for strict respiratory management and control of patient sedation depth. Traditional midazolam combined with opioid drugs or propofol monosedation cannot effectively meet clinical needs. The excellent sedative and analgesic effects of BPS, as well as its maintenance of respiratory and circulatory functions, make it theoretically very suitable for application in bronchoscopy. However, there is currently a lack of evidence to support the application of BPS in bronchoscopy.

02

Conditions studied

  • Bronchoscopy

Keywords

  • Propofol
  • Balanced propofol sedation
  • Remazolam
  • Bronchoscopy
03

In context

Lead sponsor

The Affiliated Hospital of Qingdao University is the lead sponsor of 142 studies on the registry; 55 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 100 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Population undergoing bronchoscopy examination at Qingdao University Affiliated Hospital from December 2023 to January 2014.

Inclusion criteria

  1. American Society of Anesthesiologists classes I-IV ;
  2. Patients undergo painless bronchoscopy, including bronchoscopic biopsy (bronchoscopic lesion biopsy, bronchial mucosal biopsy, bronchoscopic transmural lung biopsy, bronchoscopic needle aspiration biopsy) ,bronchoalveolar lavage and bronchoscopic treatment;
  3. Normal communication skills and able to cooperate in completing this study;
  4. Patients who voluntarily accept this experimental study and sign the "Trial Informed Consent Form".

Exclusion criteria

Exclusion Criteria:

  1. Patients with contraindications or allergies to anesthesia;
  2. Individuals with a history of alcoholism or drug abuse;
  3. Patients with contraindications for puncture of the cricoid membrane;
  4. Patients with mental or neurological disorders, taking anti anxiety/depression drugs, or primary diseases with laboratory evidence indicating possible changes in hormone levels;
  5. Patients with difficulty in language communication, poor understanding ability, and inability to cooperate in completing experimental studies;
  6. Patients who require laryngeal mask or tracheal intubation for assisted ventilation during the examination process;
  7. Patients undergoing rigid bronchoscopy treatment;
  8. Patients who refuse to receive sedation or have not signed the "Trial Informed Consent Form".
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
424 participants (actual)
Patient registry
No

Groups and cohorts

  • S-M group

    Midazolam combines with sufentanil to titrate to moderate sedation for bronchoscopy.

    Drug: Midazolam and sufentanil

  • S-M-P group

    Midazolam and sufentanil combine with low-dose propofol to titrate to deep sedation for bronchoscopy.

    Drug: Midazolam, sufentanil and propofol

  • S-R group

    Remazolam combines with sufentanil to titrate to moderate sedation for bronchoscopy.

    Drug: Remazolam and sufentanil.

  • S-R-P group

    Remazolam and sufentanil combine with low-dose propofol to titrate to deep sedation for bronchoscopy.

    Drug: Remazolam, sufentanil and propofol

Interventions

  • DrugMidazolam and sufentanil

    Patients undergoing bronchoscopic diagnosis and treatment under moderate sedation with midazolam combined with sufentani.

  • DrugMidazolam, sufentanil and propofol

    Patients undergoing bronchoscopic diagnosis and treatment under deep sedation with midazolam and sufentani combined with propofol.

  • DrugRemazolam and sufentanil.

    Patients undergoing bronchoscopic diagnosis and treatment under moderate sedation with remazolam combined with sufentani.

  • DrugRemazolam, sufentanil and propofol

    Patients undergoing bronchoscopic diagnosis and treatment under deep sedation with remazolam and sufentani combined with propofol.

06

What researchers measure

Primary outcomes

  1. Patient satisfaction

    The investigator needs to use VAS scores to evaluate satisfaction about sedation feeling when they accepted bronchoscopy. The score from 0 (extremely dissatisfied) to 10 (extremely satisfied).

    Time frame: During bronchoscopy.

  2. Clinical satisfaction

    The investigator needs to use VAS scores to evaluate satisfaction about doctors and nurses when they carry out the operation. The score from 0 (extremely dissatisfied) to 10 (extremely satisfied).

    Time frame: During bronchoscopy.

  3. Patient's recovery time

    The investigator needs to record the wake-up time of patients after the end of bronchoscopy.

    Time frame: The end of bronchoscopy (up to 2 hours).

  4. Patient's departure time

    The investigator needs to record the patient's departure time after the end of bronchoscopy.

    Time frame: The end of bronchoscopy (up to 2 hours).

Secondary outcomes

  1. Induction time

    Time from administering sedative and analgesic drugs to titration with propofol until MOAA/S 2-3 points.

    Time frame: Before bronchoscopy.

  2. Drug dosage

    Induced, maintenance and total dose of midazolam, propofol.

    Time frame: Before bronchoscopy and during bronchoscopy.

  3. Additional frequency of propofol during bronchoscopy

    Additional frequency of propofol during bronchoscopy.

    Time frame: During bronchoscopy.

  4. Additional frequency of 2% lidocaine during bronchoscopy

    Additional frequency of 2% lidocaine during bronchoscopy.

    Time frame: During bronchoscopy.

  5. Additional dosage of 2% lidocaine during bronchoscopy

    Additional dosage of 2% lidocaine during bronchoscopy.

    Time frame: During bronchoscopy.

  6. Additional dosage of propofol during bronchoscopy

    Additional dosage of propofol during bronchoscopy.

    Time frame: During bronchoscopy.

  7. Patient response score during bronchoscopy

    Researcher used the Behavioral Pain Scale for non intubated patients (BPS-NI) to assess their response scores. The tool consists of 3 behavioral domains: facial expressions, movements, and vocalization. The total BPS-IN value can range from 3 (no pain) to 12 (most pain).

    Time frame: During bronchoscopy.

  8. Adverse reactions during bronchoscopy

    Record the number of occurrences of hypotension, hypertension, tachycardia, bradycardia, arrhythmias, hypoxemia, apnea, coughing (no wheezing during continuous coughing, considered as one coughing), and physical activity (non directive limb activity) during bronchoscopy. After fully awake, researcher 2 used the VAS score for adverse reactions during the resuscitation process, such as dizziness, pain, nausea, breathing difficulties, etc.

    Time frame: During bronchoscopy

  9. Adverse reactions after fully awake

    After fully awake, researcher used the VAS score for adverse reactions during the resuscitation process, such as dizziness, pain, nausea, breathing difficulties, etc. The score from 0 (no uncomfortable) to 10 (extremely uncomfortable).

    Time frame: The end of bronchoscopy (up to 2 hours).

  10. Patient's anxiety/depression state

    Researcher used the Patient Health Questionnaire-8 (PHQ-8) to assess Patient's anxiety/depression state. The total score range of PHQ-8 is 0-24. No depressive symptoms on a score of 0-4, mild on a score of 5-9, moderate on a score of 10-14, and severe on a score of 15 or above.

    Time frame: Day before bronchoscopy. 1, 3, 7, and 14 days after bronchoscopy.

07

Study locations

1 site
  • Affiliated Hospital of Qingdao University
    Shandong, Qingdao, China
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 31, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06116955
Lead sponsor
The Affiliated Hospital of Qingdao University
Responsible party
jixiangyu (Principal Investigator, The Affiliated Hospital of Qingdao University) — Principal investigator
First posted
Nov 3, 2023
Start date
Sep 21, 2023
Primary completion
Dec 31, 2023
Completion
Jan 1, 2024
Last update
Jan 31, 2024

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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