Cardiac or Respiratory Arrest, Anaesthesia
Conditions
Keywords
anesthesia, cardiac arrest, resuscitation, ventilation
Brief summary
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;
Interventions
PROCEDUREhead extension
the lungs are ventilated with the patient´s head extended
PROCEDUREneutral position
the lungs are ventilated with the patient´s head in neutral position
PROCEDUREanaesthesiologist´s position
the lungs are ventilated with the patient´s head positioned deemed ideal by the anaesthesiologist
Sponsors
Medical University Innsbruck
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Peak airway pressure | peak airway pressure is measured over one minute |
Countries
Austria
Outcome results
None listed