NCT07206732

IVC Ultrasound Versus Central Venous Pressure for Early Detection of Hypovolemia in Shock Patients

Ultrasound-Guided Inferior Vena Cava Assessment Versus Central Venous Pressure Monitoring in Early and Post-Resuscitation Detection of Hypovolemia Among Shocked Patients in the Emergency Department

• Status: Not Yet Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 80 (estimated)
• Sponsor: Assiut University · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

This study aims to compare ultrasound-guided inferior vena cava (IVC) assessment with central venous pressure (CVP) monitoring for the detection of hypovolemia in shock patients in the emergency department. The primary objective is to evaluate the diagnostic accuracy and clinical utility of IVC collapsibility index compared to CVP values in both early and post-resuscitation phases. The study will prospectively enroll shock patients, collect demographic and clinical data, and analyze the correlation between IVC and CVP measurements to determine their role in guiding fluid resuscitation and hemodynamic management.

Detailed description

Hypovolemia is a major contributor to morbidity and mortality among patients presenting with shock in the emergency department. Early recognition and accurate assessment of intravascular volume status are essential for effective resuscitation. Central venous pressure (CVP) monitoring has traditionally been used but is invasive and may not always accurately reflect volume status. Ultrasound-guided inferior vena cava (IVC) assessment offers a non-invasive alternative, with the IVC collapsibility index shown to correlate with volume responsiveness. This prospective observational study will enroll patients diagnosed with shock and compare IVC measurements with CVP values during both early presentation and post-resuscitation phases. The findings are expected to provide evidence on the diagnostic agreement between IVC ultrasound and CVP monitoring, potentially supporting the use of IVC ultrasound as a rapid, reliable, and less invasive tool for guiding fluid therapy in emergency settings.

Conditions

• Shock
• Hypovolemia
• Circulatory Failure

Interventions

Type	Name	Description
DEVICE	Ultrasound-Guided Inferior Vena Cava Assessment	This intervention involves bedside ultrasound measurement of the inferior vena cava (IVC) diameter and calculation of the IVC collapsibility/distensibility index. Assessments will be performed both at initial presentation and after fluid resuscitation in shock patients. The procedure is non-invasive, rapid, and performed according to standardized emergency ultrasound protocols, distinguishing it from invasive monitoring methods.

Timeline

• Start date: 2025-12-15
• Primary completion: 2026-11-15
• Completion: 2026-12-15
• First posted: 2025-10-03
• Last updated: 2025-11-19

Locations

1 site across 1 country: Egypt