CClinicalTrials.gg
Not yet recruitingNCT06711328Updated Dec 2, 2024

Effect of New Oropharyngeal Airway on Incidence of Hypoxia During Painless Gastroenteroscopy in Elderly Patients

An interventional study of New oropharyngeal airway in Airway Management and Elderly Patients, sponsored by Jianbo Wu. Not yet recruiting. Open to participants aged 65 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-12-02.

Sponsored by Jianbo Wu · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by Dec 2025, 10 months ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
164
Allocation
Randomized
Ages
65 Years to 80 Years
Sex
All
01

Study summary

With the aging of Chinese population, the early screening of gastrointestinal diseases and the promotion and implementation of comfortable medical treatment, more and more elderly patients choose painless gastroenteroscopy for diagnosis and treatment.However, the incidence of anesthesia-related adverse reactions and complications is high in elderly patients.Hypoxemia caused by anesthetic-induced respiratory depression and airway obstruction is a serious complication in painless gastroenteroscopy.Severe hypoxemia not only requires emergency airway intervention, such as mask ventilation or even tracheal intubation, but also leads to the interruption of endoscopic diagnosis and treatment.Advanced age was an independent risk factor for hypoxemia during painless gastroenteroscopy,This study observed the effect of a new type of oropharyngeal ventilation in improving the elderly painless gastroenteroscopy anesthesia hypoxemia and reducing intraoperative airway intervention, so as to evaluate the safety and effectiveness of a new type of nasopharyngeal ventilation in the elderly painless gastrointestinal diagnosis and treatment, and provide clinical reference.

Read the detailed description

The oropharyngeal airway is an important airway auxiliary device for short-term airway management during the perianesthetic period, which can provide patients with an unobstructed airway during autonomous ventilation .The oropharyngeal vent has been proven to be successfully used in infants, the elderly and MRI, and can be used in short outpatient surgery instead of laryngeal mask .The oropharyngeal airway has a low incidence of pharyngeal trauma and laryngeal pain immediately after surgery, requiring a shorter exposure time of inhaled anesthetic and a lower concentration of propofol to successfully place it .During the operation to preserve spontaneous breathing, the oropharyngeal airway is introduced as a ventilation device .The new oropharyngeal airway can accept the implantation of gastroscopy and provide oxygen to patients without affecting the operation at the same time. In order to explore whether the new oropharyngeal airway can provide better oxygen to patients undergoing painless gastroenteroscopy and reduce the incidence of hypoxia during the operation, we have drafted this study and explored the safety of the new oropharyngeal airway in painless gastroenteroscopy.

02

Conditions studied

  • Airway Management
  • Elderly Patients

Browse trials for

03

In context

Hypoxia

1,231 studies on the registry are indexed under Hypoxia; 241 are open to participants now.

This study's planned enrollment of 164 is above the median of 45 across 853 interventional studies indexed under Hypoxia.

Browse Hypoxia studies →

Lead sponsor

Jianbo Wu is the lead sponsor of 5 studies on the registry; 5 are open to participants now.

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

04

Who can participate

Ages eligible
65 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Age 65-80 years old
  • written informed consent of patient or family member
  • painless stomach + colonoscopy
  • ASA grade I-II

Exclusion criteria

Exclusion Criteria:

  • Patients with clotting disorders or a tendency to oropharyngeal bleeding, mucosal damage or space occupation, difficulty in placing oropharyngeal airway, etc., who could not perform oropharyngeal airway ventilation;
  • Upper respiratory tract infections such as mouth, nose or throat;
  • Fever (core body temperature ≥37.5℃);
  • a confirmed diagnosis of pregnancy or breastfeeding;
  • Allergic to sedatives such as propofol or equipment such as tape;
  • Emergency surgery;
  • Multiple trauma;
  • SpO2 \< 95% before operation;
  • A history of drug and/or alcohol abuse within 2 years prior to the start of the screening period;(Drinking more than three times standard alcoholic beverages per day, equivalent to about 10g of alcohol or equivalent to 50g of Chinese liquor);
  • Patients with previous psychiatric and neurological diseases, such as depression, severe central nervous depression, Parkinson's disease, basal ganglia disease, schizophrenia, epilepsy, Alzheimer's disease, myasthenia gravis;
  • Currently participating in other clinical trials;
  • Patients who are deemed unfit by the investigator to participate in the trial;
  • Patients with a history of smoking should not participate in this study.
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
164 participants (estimated)

Study arms

  • Experimental
    Using a new oropharyngeal airway set

    Study participants entered the examination room to establish intravenous access, using 2% lidocaine gel 5ml containing mouth cavity and pharynx.Heart rate (HR), pulse oxygen saturation (SpO2), end-expiratory carbon dioxide, ECG monitoring, and non-invasive blood pressure (measured every 2.5 minutes) were routinely monitored before anesthesia induction.Study participants were asked to lie on their left side.In this study, the relevant staff of the undergraduate department participating in this clinical trial planned to implement simple randomization using SAS: The group using the new oropharyngeal airway (trial group) : Oxygen was continuously supplied through a catheter partially connected to the endoscopic mouth before induction of anesthesia until the end of gastroenteroscopy

    Device: New oropharyngeal airway

  • No intervention
    The conventional endoscopic bite group

    Study participants entered the examination room to establish intravenous access, using 2% lidocaine gel 5ml containing mouth cavity and pharynx.Heart rate (HR), pulse oxygen saturation (SpO2), end-expiratory carbon dioxide, ECG monitoring, and non-invasive blood pressure (measured every 2.5 minutes) were routinely monitored before anesthesia induction.Study participants were asked to lie on their left side.In this study, the relevant staff of the undergraduate department participating in this clinical trial planned to implement simple randomization using SAS:In the conventional endoscopic bite group (control group), oxygen was continuously supplied through a common nasal catheter before induction of anesthesia until the end of gastroenteroscopy.

Interventions

  • DeviceNew oropharyngeal airway

    This product is produced and sold by Shanghai Elifu Medical Technology Co., LTD., and has been officially put into clinical use in March 2023.The product is named oropharyngeal airway for disposable endoscope, which is composed of nasal plug, bite, oropharyngeal channel, oxygen supply tube, lanyard and optional accessories carbon dioxide gas catheter and carbon dioxide collection tube.The model used in this study is JK (Oropharyngeal airway for endoscope with end-expiratory carbon dioxide Collection) with L/M/S three specifications, which is used to prevent airway obstruction caused by backward tongue fall during endoscopic surgery/examination, establish oropharyngeal airway for patients, and provide nasal oxygen at the same time

06

What researchers measure

Primary outcomes

  1. The incidence of hypoxia

    The incidence of hypoxia (75% ≤ SpO2 \< 90%, ≤ 60s)

    Time frame: 1 minute after anesthesia induction

Secondary outcomes

  1. The incidence of severe hypoxia

    The incidence of severe hypoxia (SpO2 \< 75% or 75% ≤SpO2 \< 90%, ≥60s)

    Time frame: 1 minute after anesthesia induction

  2. The incidence of requiring airway intervention

    Tracheal intubation and noninvasive ventilation are required

    Time frame: 1 minute after anesthesia induction

  3. Cyclic fluctuation

    Severe bradycardia (\< 50 beats/min), MAP fluctuation greater than 30% of the baseline value or MAP \< 60 mmHg

    Time frame: 1 minute after anesthesia induction

  4. The satisfaction of endoscopists was recorded

    Patient satisfaction scales usually use a 0-10 scale, where 0 is very dissatisfied and 10

    Time frame: Within 30 minutes after anesthesia awakening

  5. Recorded adverse events

    The incidence of choking, laryngeal spasm and reflux aspiration were observed.Apnea or slow breathing episodes (defined as respiratory rate ≤6 beats/min);Bradycardia is defined as a heart rate ≤50 beats/min.Serious adverse events such as tracheal intubation, non-invasive ventilation, use of vasopressors, and hospitalization are required.

    Time frame: 1 minute after anesthesia induction

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 2, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06711328
Lead sponsor
Jianbo Wu
Responsible party
Jianbo Wu (chief physician, Qianfoshan Hospital) — Sponsor-investigator
First posted
Dec 2, 2024
Start date
Feb 1, 2025 (estimated)
Primary completion
Dec 1, 2025 (estimated)
Completion
Dec 30, 2025 (estimated)
Last update
Dec 2, 2024

Study contacts

Jianbo Wu, Doctoral
Contact
jianbowu@126.com
18560083793
Qi You, Master
Contact
312011097@qq.com
19553100910
Jianbo Wu, Doctoral
study director · Department director

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Nov 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion