Changes in Optic Nerve Sheath Diameter in Patients Undergoing Spinal Surgery in the Prone Position

Optic Nerve Sheath Diameter Clinical Trial

Official title:

Changes in Optic Nerve Sheath Diameter in Patients Undergoing Spinal Surgery in the Prone Position

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT04301817
• Other study ID #: 20200305
• Status: Not yet recruiting
• Start date: April 2020
• Est. completion date: April 2022

Study information

• Verified date: March 2020
• Source: SMG-SNU Boramae Medical Center
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Long standing prone position could affect vision or optic nerve. To measure the optic nerve sheath diameter using ultrasound is quick and useful assessments of patients.

This study will look at the change of optic nerve sheath diameters of patients undergoing surgery in prone position

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 50
• Est. completion date: April 2022
• Est. primary completion date: April 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 20 Years and older

Eligibility

Inclusion Criteria:

• Patients undergoing surgery in prone position

Exclusion Criteria:

• Patients who did not agree to participate in the study

• Patients has ophthalmic diseases

• Patients has previous history of ophthalmic surgery.

• Patients has neurological disorders.

• Patients has history of head surgery.

• Severe anaphylactic allergy to ultrasound gel or Tegaderm

Related Conditions & MeSH terms

• Optic Nerve Sheath Diameter

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
SMG-SNU Boramae Medical Center

References & Publications (2)

Chin JH, Seo H, Lee EH, Lee J, Hong JH, Hwang JH, Kim YK. Sonographic optic nerve sheath diameter as a surrogate measure for intracranial pressure in anesthetized patients in the Trendelenburg position. BMC Anesthesiol. 2015 Mar 31;15:43. doi: 10.1186/s12 — View Citation

Yu J, Hong JH, Park JY, Hwang JH, Cho SS, Kim YK. Propofol attenuates the increase of sonographic optic nerve sheath diameter during robot-assisted laparoscopic prostatectomy: a randomized clinical trial. BMC Anesthesiol. 2018 Jun 20;18(1):72. doi: 10.118 — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change optic nerve sheath diameter	Change in Optic nerve sheathe diameter from baseline, before surgery, immediate after surgery (prone, supine), 1,3,6,24 and 48 hours after completion of surgery	0,1,3,6,24 and 48 hours