# ENIGMA - Evaluation of Nitrous Oxide In the Gas Mixture for Anaesthesia: a Randomised Controlled Trial

> **NCT00164047** · PHASE4 · COMPLETED · sponsor: **Bayside Health** · enrollment: 2070 (estimated)

## Conditions studied

- Quality of Recovery From Anaesthesia
- Effects of Nitrous Oxide Following Anaesthesia
- Induced Endothelial Dysfunction

## Interventions

- **DRUG:** Nitrous Oxide

## Key facts

- **NCT ID:** NCT00164047
- **Lead sponsor:** Bayside Health
- **Sponsor class:** OTHER_GOV
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2003-04
- **Primary completion:** 2004-12
- **Final completion:** 2004-12
- **Target enrollment:** 2070 (ESTIMATED)
- **Last updated:** 2009-07-31

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00164047

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00164047, "ENIGMA - Evaluation of Nitrous Oxide In the Gas Mixture for Anaesthesia: a Randomised Controlled Trial". Retrieved via AI Analytics 2026-07-26 from https://api.ai-analytics.org/clinical/NCT00164047. Licensed CC0.

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