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Assessment of Optic Sheat Diameter (ONSD) and Eyeball Transverse Diameter (ETD) Ratio Measurement From Ocular Ultrasound

NCT07784361 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 68

Last updated 2026-08-25

No results posted yet for this study

Summary

The aim of this study is to evaluate the effects of different carbon dioxide gas insufflation pressures on the ultrasound-guided optic nerve sheath diameter in patients undergoing laparoscopic cholecystectomy and to determine the possible relationship between these changes and intracranial pressure. The study aims to gain a better understanding of the neurophysiological effects of gas pressures used during laparoscopic surgery and to obtain scientific data aimed at improving patient safety.

Conditions

  • Optic Nerve Sheath Diameter Measurement
  • Intracranial Pressure Increase
  • Laparoscopic Cholecystectomy Surgery

Interventions

PROCEDURE

Low Pressure Group

Data will be collected on patients who underwent surgery within a pressure range of 10-14, depending on the surgeon's preference.

PROCEDURE

High Pressure Group

Data will be collected on patients who underwent surgery within a pressure range of 14-18, depending on the surgeon's preference.

Sponsors & Collaborators

  • Gaziantep City Hospital

    lead OTHER

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-08-30
Primary Completion
2026-10-15
Completion
2026-10-30

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07784361 on ClinicalTrials.gov