# Distensibility Index of Inferior Vena Cava in Assessing Fluid Responsiveness: The Impact of Spontaneous Respiratory Effort

> **NCT07644494** · — · COMPLETED · sponsor: **Jingyuan,Xu** · enrollment: 50 (actual)

## Conditions studied

- Shock

## Interventions

- **BEHAVIORAL:** explored how inspiratory effort affects the accuracy of the distensibility index of inferior vena cava in assessing fluid responsiveness

## Key facts

- **NCT ID:** NCT07644494
- **Lead sponsor:** Jingyuan,Xu
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2024-06-01
- **Primary completion:** 2025-03-31
- **Final completion:** 2025-05-31
- **Target enrollment:** 50 (ACTUAL)
- **Last updated:** 2026-06-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07644494

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07644494, "Distensibility Index of Inferior Vena Cava in Assessing Fluid Responsiveness: The Impact of Spontaneous Respiratory Effort". Retrieved via MORVS 2026-10-20 from https://api.morvs.ai/clinical/NCT07644494. Licensed CC0.

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