Oxygen Insufflation Via Flexible Scope (OxyInsuffl)

Rigshospitalet

Status: Not yet enrolling

Conditions: Insertion of a Flexible Bronchoscope; Airway Management When Secretions Obstruct the Larynx

Treatments: Procedure: addition of oxygeninsufflation via working channel of flexible scope; Procedure: no-oxygen insufflation

Study type: Interventional

Funder types: Other

Identifiers

NCT06680648

OxygenInsufflation_F-24066560

Details and patient eligibility

About

The investigators will study to what extent insufflation of oxygen via the suction channel of a flexible bronchoscope can help with making access from the mouth to the trachea easier when there is blood or secretions in the way. We provide the oxygen-flow from the circle-system of an anaesthesia-machine and in this way we can limit the pressure to 30 and 40 cm H2O which are relatively safe pressure-levels. The endoscopy is performed on a plastic manikin and artificial sputum mixed with artificial blood is used. The procedure will be performed by 64 anaesthetists that will be randomised to use either oxygen-insufflation or not. The setup is cross-randomised so that each participant will perform two attempts, one with insufflation and one without. The procedures will be video-taped and evaluated by a blinded observer regarding a) success/failure of advancing the scope to the mid trachea under vision, b) the duration of the procedure. Additionally, subjective scores regarding the benefit of using insufflation will be obtained

Full description

The investigators will study to what extent insufflation of oxygen via the suction channel of a flexible bronchoscope can help with making access from the mouth to the trachea easier when there is blood or secretions in the way. We provide the oxygen-flow from the circle-system of an anaesthesia-machine and in this way we can limit the pressure to 30 and 40 cm H2O which are relatively safe pressure-levels. The endoscopy is performed on a plastic manikin and artificial sputum mixed with artificial blood is used. The procedure will be performed by 64 anaesthetists that will be randomised to use either oxygen-insufflation or not. The setup is cross-randomised so that each participant will perform two attempts, one with insufflation and one without. The procedures will be video-taped and evaluated by a blinded observer regarding a) success/failure of advancing the scope to the mid trachea under vision, b) the duration of the procedure. Additionally, subjective scores regarding the benefit of using insufflation will be obtained

Enrollment: 64 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

Anesthesiologists attending the airway course "Airwaymanagement for Anaesthesiologists"

Exclusion criteria

• non acceptance of participation

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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64 participants in 2 patient groups

Insufflation first followed by no-insufflation

Experimental group

Treatment:

Procedure: addition of oxygeninsufflation via working channel of flexible scope

no-insufflation first followed by insufflation

Active Comparator group

Treatment:

Procedure: no-oxygen insufflation