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Nasal Mask Kit in Gastrointestinal Endoscopy

Nasal Mask Oxygen Reduces the Incidence of Hypoxia Undergoing Gastrointestinal Endoscopy Under Propofol Sedation: a Multicenter Randomized Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05405530
Acronym
NASO
Enrollment
1204
Registered
2022-06-06
Start date
2022-09-01
Completion date
2023-06-06
Last updated
2025-06-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colon Cancer, Colon Polyp, Esophageal Cancer, Gastric Cancer, Gastric Polyp, Hypoxia

Keywords

nasal mask, Hypoxia, Gastrointestinal endoscopy, Propofol, Capnographic Monitoring

Brief summary

Hypoxia is the most common adverse event in gastrointestinal endoscopes sedated with propofol. The nasal mask oxygen kit has good sealing to ensure an adequate oxygen supply and is convenient and economical.The aim of this randomized study was to determine whether the nasal mask oxygen kit reduces the incidence of hypoxia in gastrointestinal endoscopes procedures.

Interventions

DEVICEnasal mask oxygen kit

Using the nasal mask oxygen kit for oxygenation.

Using nasal cannula for oxygenation.

Sponsors

Henan Provincial People's Hospital
CollaboratorOTHER
First Affiliated Hospital of Kunming Medical University
CollaboratorOTHER
RenJi Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* 18≤ Age ≤60 * patients undergoing combined gastroendoscopy and colonoscopy procedure * patients signed informed consent form * ASA classification I-II * Estimated procedure time \<=45min

Exclusion criteria

* Coagulation disorders or a tendency of nose bleeding * Diagnosed heart disease (heart failure, angina, myocardial infarction, arrhythmia, etc.) * Diagnosed chronic obstructive pulmonary disease or current other acute or chronic lung disease requiring supplemental chronic or intermittent oxygen therapy) * hypoxia (SpO2\< 90 % ) * Upper respiratory tract infection * increased intracranial pressure * Fever (core body temperature \>37.5 ℃) * Pregnancy, breastfeeding, or positive pregnancy test * Emergency procedure or surgery * Multiple trauma * Allergy to propofol or tape and adhesives * BMI\<18.5 or BMI\>30

Design outcomes

Primary

MeasureTime frameDescription
The incidence of hypoxiaPatients will be followed for the duration of hospital stay, an expected average about 2 hours](75% ≤ SpO2 \< 90% for \<60 s)

Secondary

MeasureTime frameDescription
The incidence of other adverse eventsPatients will be followed for the duration of hospital stay, an expected average about 2 hours]Other adverse events recorded by tools proposed by the World Society of Intravenous Anesthesia International Sedation Task Force
The incidence of sub-clinical respiratory depressionPatients will be followed for the duration of hospital stay, an expected average about 2 hours](90% ≤ SpO2 \< 95%)
The incidence of severe hypoxiaPatients will be followed for the duration of hospital stay, an expected average about 2 hours(SpO2 \< 75% or 75% ≤ SpO2 \< 90% for \>/=60 s)

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026