# Ultrasonographic Optic Nerve Sheath Diameter in Postdural Puncture Headache Diagnosis

> **NCT07100158** · — · COMPLETED · sponsor: **Ankara City Hospital Bilkent** · enrollment: 176 (actual)

## Conditions studied

- Anesthesia, Local
- Headache

## Interventions

- **OTHER:** Ultrasonographic Measurement of Optic Nerve Sheath Diameter (ONSD)

## Key facts

- **NCT ID:** NCT07100158
- **Lead sponsor:** Ankara City Hospital Bilkent
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2025-08-08
- **Primary completion:** 2025-12-09
- **Final completion:** 2026-02-07
- **Target enrollment:** 176 (ACTUAL)
- **Last updated:** 2026-02-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07100158

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07100158, "Ultrasonographic Optic Nerve Sheath Diameter in Postdural Puncture Headache Diagnosis". Retrieved via AI Analytics 2026-05-19 from https://api.ai-analytics.org/clinical/NCT07100158. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*