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

Completed

• Conditions: Emergency medicine, anesthesiology; Not Applicable

• Registration Number: ISRCTN18341153
• Lead Sponsor: Karl Landsteiner University of Health Sciences

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2017-07-19
• Last Update Posted: 19 March 2018
• Study Completion: 2018-12-31

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 20

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

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

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Peak systolic velocity, measured using ultrasound 5 min after intubation

Secondary Outcome Measures

Name	Time	Method
1. Mean diastolic velocity (MDV), measured using ultrasound 5 min after intubation<br>2. Enddiastolic velocity (EDV), measured using ultrasound 5 min after intubation<br>3. Oxygen saturation, measured using near infrared spectroscopy (NIRS) pulsoxymetry detector 5 min after intubation