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Pharyngeal cannulae as a new oxygen delivery method; comparison to nasal vannulae

Pharyngeal cannulae as a new oxygen delivery method; comparison to nasal vannulae - Pharyngeal cannulae as a new oxygen delivery method

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000019214
Enrollment
10
Registered
2015-10-05
Start date
2015-10-05
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Hypoxia during upper gastrointestinal endoscopy in sedated patients

Interventions

Oxygen is administrated via a catherter inserted from nose to pharyngeal space at 4 L/min. After preoxygenation (more than 5 minutes), FIO2 is measured for 1 minute by sampling from tracheal catherter

Sponsors

Department of Anesthesiology and Intensive Care Unit, Yokohama City University Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients who were inserted minitracheostomy tubes after extubation of oral endotracheal tubes would be recruited into this study. Participants needs to be awake and be able to understand and consent to this study.

Exclusion criteria

Exclusion criteria: Exclusion criteria includes patients with anatomical abnormality of nose and pharynx, respiratory diseases, unstable circulatory status, severe hypoxia. In addition, patients who are judged to unsuitable to this study would be also excluded.

Design outcomes

Primary

MeasureTime frame
Fraction of inspired oxygen during oxygen delivery via PC or NC, which is mearsured with direct sampling of tracheal gas by cricothyroid ligament puncture catheter

Countries

Japan

Contacts

Public ContactShunsuke Takaki

Yokohama City University Hospital Department of Anesthesiology and Intensive Care Unit

anesthes@yokohama-cu.ac.jp81457872918

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026