# Optical Nerve Sheath Changes During Head Down Laparoscopy

> **NCT03957837** · — · COMPLETED · sponsor: **ASST Fatebenefratelli Sacco** · enrollment: 20 (actual)

## Conditions studied

- Intracranial Hypertension
- Brain Edema
- Pneumoperitoneum
- Surgery, Laparoscopic

## Interventions

- **DIAGNOSTIC_TEST:** Optical nerve sheath diameter ultrasound measurement

## Key facts

- **NCT ID:** NCT03957837
- **Lead sponsor:** ASST Fatebenefratelli Sacco
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2019-05-13
- **Primary completion:** 2019-06-30
- **Final completion:** 2019-07-30
- **Target enrollment:** 20 (ACTUAL)
- **Last updated:** 2021-01-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03957837

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03957837, "Optical Nerve Sheath Changes During Head Down Laparoscopy". Retrieved via AI Analytics 2026-07-26 from https://api.ai-analytics.org/clinical/NCT03957837. Licensed CC0.

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