# Gas Kinetics and Metabolism in Anesthesia During Non Steady State

> **NCT00225381** · — · WITHDRAWN · sponsor: **University of California, Irvine**

## Conditions studied

- Anesthetized Healthy Patients (ASA 1 or 2) in the Supine Position, Excluding Head, Neck and Head Surgeries
- Anesthetized Patient With Severe Systemic Disease (ASA 3 or 4)

## Interventions

- **DEVICE:** connection of measuring device to anesthesia circuit
- **PROCEDURE:** drawing of blood sample through an arterial line, placed according to clinical criteria by primary anesthesia team
- **PROCEDURE:** changing operating room bed position (head down and up position)
- **PROCEDURE:** adding PEEP during anesthesia
- **PROCEDURE:** placement of esophageal Doppler for cardiac output measurements
- **DEVICE:** Humidity sensor
- **DEVICE:** A mixing chamber (bymixer)
- **DEVICE:** Pneumotachometer cuvette
- **DEVICE:** Mass spectrometer sampling port

## Key facts

- **NCT ID:** NCT00225381
- **Lead sponsor:** University of California, Irvine
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** WITHDRAWN
- **Start date:** 2005-08
- **Primary completion:** 2012-01-13
- **Final completion:** 2012-01-13
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Non Applicable clinical trial
- **Last updated:** 2021-03-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00225381

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00225381, "Gas Kinetics and Metabolism in Anesthesia During Non Steady State". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00225381. Licensed CC0.

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