Trial · NCT04415905
Comparison of Optic Nerve Sheath Diameter in Children Receiving Caudal Block According to Anesthetic Agents: Total Intravenous Anesthesia vs. Volatile Anesthesia
NCT04415905, Not applicable, Completed, Yonsei University
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Comparison of Optic Nerve Sheath Diameter in Children Receiving Caudal Block According to Anesthetic Agents: Total Intravenous Anesthesia vs. Volatile Anesthesia. Trials, record NCT04415905. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04415905
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Comparison of Optic Nerve Sheath Diameter in Children Receiving Caudal Block According to Anesthetic Agents: Total Intravenous Anesthesia vs. Volatile Anesthesia
- NCT number
- NCT04415905
- Status
- Completed
- Phases
- Not applicable
- Enrollment
- 60 participants, actual
- Lead sponsor
- Yonsei University
- Conditions
- Caudal Block for Postoperative Analgesia
- Interventions
- Propofol, Sevoflurane
- First posted
- 2020-06-04
- Last updated
- 2022-05-05
Source ClinicalTrials.gov
Registered outcomes32
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | ONSD | before (T0) caudal block. | ONSD is a surrogate for ICP. ONSD was measured by transorbital sonography. Transorbital sonography is performed using a linear 6-13 Hz probe. After applying a thick layer of sterile coupling gel on the closed upper eyelid, the probe is placed gently without exerting pressure. Axial images of the orbit are acquired in the plane of the optic nerve, and ONSD is measured 3mm posterior to the optic nerve head as described previously. |
| Primary | ONSD | immediately after (T1) caudal block. | ONSD is a surrogate for ICP. ONSD was measured by transorbital sonography. Transorbital sonography is performed using a linear 6-13 Hz probe. After applying a thick layer of sterile coupling gel on the closed upper eyelid, the probe is placed gently without exerting pressure. Axial images of the orbit are acquired in the plane of the optic nerve, and ONSD is measured 3mm posterior to the optic nerve head as described previously. |
| Primary | ONSD | 10 minutes (T2) after caudal block. | ONSD is a surrogate for ICP. ONSD was measured by transorbital sonography. Transorbital sonography is performed using a linear 6-13 Hz probe. After applying a thick layer of sterile coupling gel on the closed upper eyelid, the probe is placed gently without exerting pressure. Axial images of the orbit are acquired in the plane of the optic nerve, and ONSD is measured 3mm posterior to the optic nerve head as described previously. |
| Primary | ONSD | 30 minutes (T3) after caudal block. | ONSD is a surrogate for ICP. ONSD was measured by transorbital sonography. Transorbital sonography is performed using a linear 6-13 Hz probe. After applying a thick layer of sterile coupling gel on the closed upper eyelid, the probe is placed gently without exerting pressure. Axial images of the orbit are acquired in the plane of the optic nerve, and ONSD is measured 3mm posterior to the optic nerve head as described previously. |
| Secondary | The variables affecting ICP : Heart rate (beats per minute) | before (T0) caudal block. | |
| Secondary | The variables affecting ICP : Heart rate (beats per minute) | immediately after (T1) caudal block. | |
| Secondary | The variables affecting ICP : Heart rate (beats per minute) | 10 minutes (T2) after caudal block. | |
| Secondary | The variables affecting ICP : Heart rate (beats per minute) | 30 minutes (T3) after caudal block. | |
| Secondary | The variables affecting ICP : Mean arterial pressure (mmHg) | before (T0) caudal block. | |
| Secondary | The variables affecting ICP : Mean arterial pressure (mmHg) | immediately after (T1) caudal block. |
1 to 10 of 32Source ClinicalTrials.gov
See all 32 registered outcomesOutcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT04415905
GET https://conductscience.org/api/trials/v1/NCT04415905/registered?page=2