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Comparison of the COMBO Oropharyngeal Airway versus the Nasopharyngeal Airway for Airway Management in Obese Patients Undergoing Sedated Gastrointestinal Endoscopy: A Prospective Randomized Controlled Trial

Comparison of the COMBO Oropharyngeal Airway versus the Nasopharyngeal Airway for Airway Management in Obese Patients Undergoing Sedated Gastrointestinal Endoscopy: A Prospective Randomized Controlled Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600120193
Enrollment
Unknown
Registered
2026-03-10
Start date
2026-03-10
Completion date
Unknown
Last updated
2026-03-16

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

Conditions

None listed

Interventions

Intervention Group (COMBO oropharyngeal airway group):Ventilation via COMBO oropharyngeal airway
Control Group (Nasopharyngeal airway Group):Ventilation via Nasopharyngeal airway

Sponsors

Shanghai General Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Age >=18 years. 2. BMI 28–35 kg/m². 3. ASA classification: Class I or II. 4. Scheduled to undergo gastrointestinal endoscopy under intravenous anesthesia. 5. Agrees to participate in this study and has signed the informed consent form.

Exclusion criteria

Exclusion criteria: 1. History of confirmed upper respiratory tract infection within the past two weeks 2. History of nasal septal deviation, nasal polyps, epistaxis, nasal mucosal injury, or nasal trauma 3. Confirmed pulmonary disease such as acute asthma exacerbation, chronic obstructive pulmonary disease, pulmonary bullae 4. Concurrent severe cardiac, pulmonary, hepatic, or renal system disorders 5. Severe gastroesophageal reflux disease, intestinal obstruction, or insufficient fasting period 6. History of anaesthetic drug allergy 7. Patient deemed unsuitable for study participation by the investigator

Design outcomes

Primary

MeasureTime frame
Incidence of perioperative hypoxemia;

Secondary

MeasureTime frame
Perioperative minimum oxygen saturation index;Duration of hypoxia;Proportion requiring additional airway interventions (jaw thrust, mask ventilation =10 seconds, conversion to laryngeal mask or endotracheal intubation);Endoscopist satisfaction score;Modified Aldrete Score;Sore Throat Visual Analogue Scale (VAS) Score;Incidence of mucosal injury;

Countries

China

Contacts

Public ContactAn Guanghui

Shanghai General Hospital

gh_An@163.com+86 137 6412 2642

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Mar 20, 2026