Emergency medicine, anesthesiology Not Applicable
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Adult patients with an age of >18 years 2. Informed consent 3. ASA I-II 4. Mallampati Score classification I-II 5. Scheduled for elective surgery for any reason
Exclusion criteria
Exclusion criteria: 1. Prior intubation or anaesthesia related adverse events 2. >25% stenosis of the extracranial common and internal carotid arteries 3. Carotid dissections 4. Carotid aneurysms 5. Pre-existing surgeries at carotid arteries or in the area of the neck, throat or laryngeal structures 6. Laparoscopic surgery requiring gas inflation of the abdomen 7. Pregnancy 8. Ward of the state/prisoner
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Peak systolic velocity, measured using ultrasound 5 min after intubation | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Mean diastolic velocity (MDV), measured using ultrasound 5 min after intubation 2. Enddiastolic velocity (EDV), measured using ultrasound 5 min after intubation 3. Oxygen saturation, measured using near infrared spectroscopy (NIRS) pulsoxymetry detector 5 min after intubation | — |
Countries
Austria