Health TrialsbyHealthPanel

External Validation of the MASCAN Score for the Classification of Difficult Mask Ventilation

ConditionsAirway ManagementGeneral AnesthesiaMask Ventilation
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorUniversitätsklinikum Hamburg-Eppendorf

About this trial

The MASCAN Score is a prospectively developed objective classification for difficult facemask ventilation. This prospective observational study aims to externally validate the MASCAN score in patients undergoing general anaesthesia for surgical procedures and to determine the influence of different approaches and techniques, such as the timing of neuromuscular blocking agents and manual versus controlled facemask ventilation. A secondary aim is to determine the diagnostic value of visual assessments of the capnography curve. Another secondary aim of the study is to compare the assessment of the first attempt success during tracheal intubation between the airway operator and an independent observer.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patients who are scheduled for surgery with general anesthesia and require facemask ventilation and tracheal intubation after induction of anesthesia

Patients aged 18 years or older

Provided informed consent

Disqualifiers

Pregnant or breastfeeding woman

Required rapid sequence induction or other contraindications for facemask ventilation

Planned awake tracheal intubation

No consent given

Trial population

Consecutive sampling: Adult patients undergoing general anesthesia in a tertiary care hospital who require facemask ventilation and tracheal intubation after induction of anesthesia.

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

926 Participants
are grouped into 1 trial group
Group A: Patients undergoing general anaesthesia with facemask ventilation

Trial outcomes

Primary outcomes

1

Difficult facemask ventilation

Alert documented in patients health records by the airway operator following facemask ventilation

Time frame
1 hour

Secondary outcomes

1

Impossible facemask ventilation

Impossible facemask ventilation observed after induction of anesthesia (absence of end-tidal carbon dioxide measurement and lack of perceptible chest wall movement despite airway adjuvants and additional personnel after adequate neuromuscular blockade)

Time frame
1 hour
2

Best capnograph achieved

Best capnography waveform achieved during facemask ventilation (grade A-D)

Time frame
1 hour
3

Optimization manoeuvers for facemask ventilation used

Optimization manouvers such as oral airway, jaw-thrust or two-handed grip used as documented facemask ventilation

Time frame
1 hour
4

Leak fraction

Leak fraction (leak volume/ tidal volume) during facemask ventilation

Time frame
1 hour

Other outcomes

Sponsors and contacts

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Universitätsklinikum Hamburg-Eppendorf

Lead sponsor

Source ClinicalTrials.gov
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