The Effect of a Laryngeal Mask Airway on Optic Nerve Sheath Diameter (ONSD laryngeal)

Erasmus University

Status: Enrolling

Conditions: Intracranial Pressure Increase

Treatments: Other: optic nerve sheath diamater

Study type: Observational

Funder types: Other

Identifiers

NCT06403592

ONSD laryngeal

Details and patient eligibility

About

The goal of this observational trial is to study the effect of a laryngeal airway mask on the optic nerve sheath diameter, as a surrogate for intracranial pressure.

The optic nerve sheath diameter of participants will be measured under general anesthesia, before, during and after insertion of a laryngeal airway mask.

Enrollment: 230 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

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

Trial design

230 participants in 1 patient group

Observational cohort

Description:

ASA I-II patients scheduled for surgery under general anesthesia with a laryngeal airway mask

Treatment:

Other: optic nerve sheath diamater