Head Positions to Open the Airway IV

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-09-30

Study Completion Date

2015-04-01

Brief Summary

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After routine induction of general anaesthesia peak airway pressure (= P max) and other respiratory parameters(i.e. expiratory tidal volume, expiratory CO2) are measured with and without head support in three different head positions: neutral position, reclination of the head, a position deemed ideal by the anaesthesist; primary study goal is pmax depending on different head positions;

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Detailed Description

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Conditions

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Cardiac or Respiratory Arrest, Anaesthesia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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with head support

patients are ventilated with their heads positioned on a support

Group Type ACTIVE_COMPARATOR

head extension

Intervention Type PROCEDURE

the lungs are ventilated with the patient´s head extended

neutral position

Intervention Type PROCEDURE

the lungs are ventilated with the patient´s head in neutral position

anaesthesiologist´s position

Intervention Type PROCEDURE

the lungs are ventilated with the patient´s head positioned deemed ideal by the anaesthesiologist

without head support

patients are ventilated without head support

Group Type SHAM_COMPARATOR

head extension

Intervention Type PROCEDURE

the lungs are ventilated with the patient´s head extended

neutral position

Intervention Type PROCEDURE

the lungs are ventilated with the patient´s head in neutral position

anaesthesiologist´s position

Intervention Type PROCEDURE

the lungs are ventilated with the patient´s head positioned deemed ideal by the anaesthesiologist

Interventions

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head extension

the lungs are ventilated with the patient´s head extended

Intervention Type PROCEDURE

neutral position

the lungs are ventilated with the patient´s head in neutral position

Intervention Type PROCEDURE

anaesthesiologist´s position

the lungs are ventilated with the patient´s head positioned deemed ideal by the anaesthesiologist

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* male and female patients ≥ 18 years
* elective operations in general anaesthesia
* patient´s written informed consent
* American Society of Anesthesiology scale I-III

Exclusion Criteria

* non fasting patient
* body mass index \> 35 kg/m2
* anamnestic cervical spine pathologies or other peripheral neurological deficiences due to pathologies of the cervical spine
* malformations of the head or upper airway
* history of perforation of stomach or esophagus
* anamnestic hiatus hernia or reflux
* acute respiratory infection or obstructive airway disease

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes