NCT06209034Completed
Intraoperative Optic Nerve Sheath Diameter Changes After Laparoscopic Surgery
Ultrasonographic Evaluation of Intraoperative Optic Nerve Sheath Diameter Changes in Patients Undergoing Laparoscopic Surgery
Source: ClinicalTrials.gov · Last updated 18 Mar 2026
Brief summary (registry, in English)
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.
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 55 (actual)
- First submitted
- 6 Jan 2024
- Start date
- 30 Dec 2023
- Primary completion date
- 31 Jul 2024
- Lead sponsor
- Kocaeli University
- NCT number
- NCT06209034
What you commit to
- Study type: Interventional
- Participants enrolled: 55
- From 30 Dec 2023 to the primary completion date, 31 Jul 2024
- 2 sites in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Patients who will undergo open abdominal surgery
Other illness
- Those with known ophthalmic disease
- Those with a history of ophthalmic surgery
- Those with any known neurological disorder
- History of intracranial hypertension
Other
- American Society of Anesthesiologists Classification (ASA) IV-V patients
Who the study is looking for
- 18-75 aged patients
- American Society of Anesthesiologists Classification (ASA) I-II-III patients
- Patients undergoing laparoscopic surgery
Age in the registry: 18 years to 75 years · Sex: All · Does not accept healthy volunteers
Sites (2)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Sevim Cesur Coordinator of this site? Confirm its status | Kocaeli | Turkey (Türkiye) | Unknown status |
| Kocaeli University Coordinator of this site? Confirm its status | Kocaeli | Turkey (Türkiye) | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.