Optic Nerve Sheath Diameter
Conditions
Brief summary
In the present study, we compare the effect of sevoflurane and propofol on the optic nerve sheath diameter in patients undergoing middle ear surgery.
Interventions
DIAGNOSTIC_TESTUltrasound examination of the optic nerve sheath diameter
The optic nerve sheath diameter is examined using ultrasonography.
Sponsors
SMG-SNU Boramae Medical Center
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
20 Years to No maximum
Inclusion criteria
* Patients undergoing middle ear surgery
Exclusion criteria
* History of cerebrovascular diseases * Increased intracranial pressure * History of ophthalmic surgery or diseases
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change of the optic nerve sheath diameter | At 1 minute after the induction of anesthesia and at 1 minute after the end of surgery | The optic nerve sheath of each eye is observed using ultrasound, and the optic nerve sheath diameter is assessed after induction of anesthesia and at the end of surgery. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Optic nerve sheath diameter at each time point | At 1 minute after the induction of anesthesia and at 1 minute after the end of surgery | The optic nerve sheath of each eye is observed using ultrasound, and the optic nerve sheath diameter is assessed after induction of anesthesia and at the end of surgery. |
| Nausea and vomiting | At 1 hour after surgery | Presence and severity of nausea and vomiting is assessed. |
Countries
South Korea
Outcome results
None listed