Intracranial Pressure Increase, Optic Nerve Sheath Diameter
Conditions
Keywords
Ultrasonography, Optic nerve sheath diameter, Laparoscopic surgery
Brief summary
Laparoscopic surgery is a widely used alternative to open surgery; Advantages include reduced bleeding and pain intensity, shorter hospital stay, and improved cosmetic results. Laparoscopic surgery involves the creation of a carbon dioxide (CO2) pneumoperitoneum to facilitate a clear surgical view, which can result in increased intracranial pressure (ICP). Ultrasonographic measurement of optic nerve sheath diameter (ONSD) is a simple, non-invasive, yet reliable technique for ICP assessment.Ultrasonographic assessment of optic nerve sheath diameter (ONSD) has been proposed as a non-invasive measurement of intracranial pressure.
Detailed description
Ultrasonographic measurement of optic nerve sheath diameter (ONSD) is a simple, non-invasive, yet reliable technique for ICP assessment. Previous studies have demonstrated that ultrasonographic measurement of ONSD correlates with the degree of ICP and can detect intracranial hypertension in a variety of clinical settings. It was planned to measure the optic nerve sheath throughout the surgery with the help of a linear ultrasound probe. Ultrasonographically, in each measurement, the optic nerve sheath diameter (ONSD) was detected 3 mm behind the entry point of the optic nerve into the globe in both eyes. ONSD will be measured bilaterally 3 mm behind the papilla. It will be evaluated by transverse measurement for each optic nerve.
Interventions
ONSD was measured bilaterally 3 mm posterior to the papilla. Transverse measurements were made for each optic nerve.
Sponsors
Kocaeli University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Masking description
Single(Participant)
Eligibility
Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
* 18-75 aged patients * American Society of Anesthesiologists Classification (ASA) I-II-III patients * Patients undergoing laparoscopic surgery
Exclusion criteria
* American Society of Anesthesiologists Classification (ASA) IV-V patients * Those with known ophthalmic disease * Those with a history of ophthalmic surgery * Those with any known neurological disorder * History of intracranial hypertension * Patients who will undergo open abdominal surgery
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Evaluation of optic nerve sheath diameter | During the operation | Ultrasound measurement of optic nerve sheath diameter during laparoscopic surgery |
Countries
Turkey (Türkiye)
Contacts
STUDY_DIRECTORSevim Cesur
Kocaeli University
Outcome results
None listed