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NCT07491198Recruiting

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 · Last updated 10 Sept 2026

Brief summary (registry, in English)

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.

Status (registry)
Recruiting
Study type
Observational
Enrollment
50 (estimated)
First submitted
18 Mar 2026
Start date
5 Jan 2026
Primary completion date
1 Oct 2026
Lead sponsor
Ege University
NCT number
NCT07491198

What you commit to

  • Study type: Observational
  • Planned participants: 50
  • From 5 Jan 2026 to the primary completion date, 1 Oct 2026
  • 1 site 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

  • Known ocular disease (glaucoma, retinal detachment, diabetic retinopathy, previous ocular surgery, etc.)

Other illness

  • History of intracranial surgery or intracranial lesion

Other

  • Intraocular pressure greater than 30 mmHg
  • Refusal to participate in the study

Who the study is looking for

  • 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

Age in the registry: 18 years to - · Sex: Male · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Ege University Faculty of Medicine Hospital
Coordinator of this site? Confirm its status
IzmirTurkey (Türkiye)Recruiting

This page is information, not medical advice. Discuss any trial with your doctor.