# Effect of Inverse Ratio Ventilation During Induction of General Anesthesia on Safe Apnea Time in Obese Patients

> **NCT04627883** · NA · COMPLETED · sponsor: **General Hospital of Ningxia Medical University** · enrollment: 40 (actual)

## Conditions studied

- Obesity

## Interventions

- **OTHER:** Inspiratory-to-expiratory (I : E) ratio of 1:2
- **OTHER:** Inspiratory-to-expiratory (I : E) ratio of 2:1

## Key facts

- **NCT ID:** NCT04627883
- **Lead sponsor:** General Hospital of Ningxia Medical University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-08-17
- **Primary completion:** 2022-01-01
- **Final completion:** 2022-01-01
- **Target enrollment:** 40 (ACTUAL)
- **Last updated:** 2025-02-17


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04627883

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04627883, "Effect of Inverse Ratio Ventilation During Induction of General Anesthesia on Safe Apnea Time in Obese Patients". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04627883. Licensed CC0.

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