Examining how a laryngeal mask airway affects optic nerve sheath diameter
The Effect of a Laryngeal Mask Airway on Optic Nerve Sheath Diameter
This study tests how using a laryngeal mask airway during surgery affects the size of the optic nerve sheath, which helps us understand changes in pressure inside the skull.
Quick facts
| Study type | Observational |
|---|---|
| Enrollment | 230 (estimated) |
| Ages | 18 Years and up |
| Sex | All |
| Sponsor | Erasmus Medical Center Academic / other |
| Locations | 1 site (Rotterdam) |
| Trial ID | NCT06403592 on ClinicalTrials.gov |
What this trial studies
This observational trial aims to investigate the impact of a laryngeal airway mask on the optic nerve sheath diameter, which serves as an indirect measure of intracranial pressure. Participants aged 18 and older, who are scheduled for elective surgeries under general anesthesia lasting more than 30 minutes, will have their optic nerve sheath diameter measured before, during, and after the insertion of the airway mask. The study focuses on understanding how this airway management technique may influence intracranial pressure readings.
Who should consider this trial
Good fit: Ideal candidates are adults aged 18 and older, classified as ASA I or II, undergoing elective surgery with a duration of over 30 minutes.
Not a fit: Patients scheduled for head or neck surgery, neurosurgery, or those with specific neurological conditions may not benefit from this study.
Why it matters
Potential benefit: If successful, this study could provide insights into safer airway management practices that may help monitor intracranial pressure more effectively.
How similar studies have performed: While the specific approach of using a laryngeal mask airway to assess optic nerve sheath diameter is novel, similar studies have explored the relationship between airway management and intracranial pressure.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * In order to be eligible to participate in this study, a subject must meet all of the following criteria: aged 18 years or older, ASA I or ASA II, scheduled for elective surgery under general anesthesia, with a planned duration of \> 30 minutes, that can be routinely performed with a LMA. Exclusion Criteria: * Scheduled for head or neck surgery * Scheduled for neurosurgery * Scheduled for laparoscopic or thorascoscopic procedures * Scheduled for procedures that require Trendelenburg or anti-Trendelenburg positioning * Neurological disorders * Glaucoma * History of bilateral eye related trauma * Intellectual disability
Where this trial is running
Rotterdam
- Erasmus Medisch Centrum — Rotterdam, Netherlands (Recruiting)
Study contacts
- Study coordinator: Dr. Maissan
- Email: i.maissan@erasmusmc.nl
- Phone: +31628552301
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.