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Influence of the inflated cuff balloon of a laryngeal tube on carotid artery blood flow

The influence of the inflated cuff balloon of the laryngeal tube compared to the endotracheal tube on carotid artery blood flow in anaesthetized patients: a randomized cross over study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN18341153
Enrollment
20
Registered
2017-07-19
Start date
2017-07-24
Completion date
Unknown
Last updated
2018-03-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Emergency medicine, anesthesiology Not Applicable

Interventions

Adult patients scheduled for elective surgery for any reason will be asked to take part in this study. Informed consent will be obtained after intensive education and during regular pre-anaesthesiolog

Sponsors

Karl Landsteiner University of Health Sciences
Lead Sponsor

Eligibility

Sex/Gender
All

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

MeasureTime frame
Peak systolic velocity, measured using ultrasound 5 min after intubation

Secondary

MeasureTime 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

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026