Clinical trial · Observational
Effect Of Trendelenburg Position And Pneumoperitoneum On Optic Nerve Sheath Diameter In Robot-Assisted Prostatectomy
Effect of Steep Trendelenburg Position and Pneumoperitoneum on Optic Nerve Sheath Diameter in Robot-Assisted Laparoscopic Radical Prostatectomy: A Prospective Study
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 11, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260911-000001
Summary
Brief summary (as posted)
This prospective study aims to evaluate the effect of steep Trendelenburg position and pneumoperitoneum on optic nerve sheath diameter in patients undergoing robot-assisted laparoscopic radical prostatectomy and open radical prostatectomy under general anesthesia. Increased intracranial pressure may occur during robotic surgery due to pneumoperitoneum and head-down positioning. Optic nerve sheath diameter measured by ocular ultrasonography is a non-invasive method used to assess intracranial pressure changes. Hemodynamic and respiratory parameters will also be recorded during surgery. The results of this study may help to better understand the physiological effects of surgical position and pneumoperitoneum during prostatectomy procedures.
Conditions
Conditions (4)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Optic Nerve Sheath Diameter | — | UNRESOLVED | — |
| Prostate Cancer | Malignant Prostate Neoplasm | CURATED_EXACT | 0.92 |
| Robot-Assisted Radical Prostatectomy | — | UNRESOLVED | — |
| Steep Trendelenburg Position With Penumoperitoneum in Robot Assisted Laparoscopic Prostatectomy | — | UNRESOLVED | — |
Interventions
Interventions (0)
Data not yet available
Design
Arms and outcomes
Arms (2)
- label
- Robot-Assisted Radical Prostatectomy
- description
- Patients undergoing robot-assisted laparoscopic radical prostatectomy under general anesthesia.
- label
- Open Radical Prostatectomy
- description
- Patients undergoing open radical prostatectomy under general anesthesia.
Primary outcomes (1)
- measure
- Optic Nerve Sheath Diameter
- timeFrame
- During surgery at predefined intraoperative time points
- description
- Measurement of optic nerve sheath diameter using ocular ultrasonography during surgery.
Eligibility
Eligibility (as posted)
- Sex
- Male
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Age ≥ 18 years * ASA physical status I-III * Patients scheduled for robot-assisted laparoscopic radical prostatectomy or open radical prostatectomy under general anesthesia * Written informed consent obtained Exclusion Criteria: * History of intracranial surgery or intracranial lesion * Known ocular disease (glaucoma, retinal detachment, diabetic retinopathy, previous ocular surgery, etc.) * Intraocular pressure greater than 30 mmHg * Refusal to participate in the study
References
Publications (0)
Data not yet available