MedTrace Logo

Evaluation of Optic Nerve Sheath Diameter Changes During Cardiopulmonary Bypass in Open Heart Surgery

NCT07253922 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 40

Last updated 2025-11-28

No results posted yet for this study

Summary

During cardiopulmonary bypass (CPB) in open-heart surgery, direct measurement of intracranial pressure is not feasible. Evaluation of the optic nerve sheath diameter (ONSD) by ultrasonography is considered a reliable method for predicting increases in intracranial pressure. This study aims to investigate changes in ONSD in patients undergoing open-heart surgery with CPB.

Conditions

  • Open Heart Surgery
  • Cardiopulmonary Bypass
  • Intracranial Pressure
  • Optic Nerve Sheath Diameter

Interventions

PROCEDURE

Ultrasonography of the Optic Nerve Sheath

Ultrasonographic measurement of the optic nerve sheath diameter (ONSD) will be performed using a 7.5 MHz linear probe. Measurements will be taken 3 mm behind the globe in both transverse and sagittal planes, three times for each eye, and the average value will be recorded at predefined time points during cardiopulmonary bypass.

Sponsors & Collaborators

  • Medipol University

    lead OTHER

Eligibility

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

Timeline & Regulatory

Start
2025-06-10
Primary Completion
2025-10-10
Completion
2025-11-25

Countries

  • Turkey (Türkiye)

Study Locations

More Related Trials

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 NCT07253922 on ClinicalTrials.gov