NCT01136109

A Study to Evaluate the Effect of Mechanical Ventilation on the Inferior Vena Cava Collapsibility Index

A Prospective Pilot Study to Evaluate the Effect of Mechanical Ventilation on the Inferior Vena Cava Collapsibility Index

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 32 (actual)
• Sponsor: Naeem Ali, MD · Academic / Other
• Sex: All
• Age: 18 Years – 99 Years
• Healthy volunteers: Not accepted

Summary

Previous research has shown that the Inferior Vena Cava Collapsibility Index (IVCCI) can be used to assess volume status. One limitation of the previous work is that changes in intra-thoracic pressure can influence this measurement, and the magnitude of this effect has never been described. The investigators aim is to correlate the degree of change in IVCCI with the set degree of change in intra-thoracic pressure in a heterogeneous population of critically ill patients.

Detailed description

Initially eligible patients will be those admitted to the OSU MICU and 8ICU within the prior 48 hours. These patients will be screened for predetermined exclusion criteria. Eligible patients will have their IVCCI measured and baseline peak and plateau pressures noted. For those patients meeting a second set of criteria, a common ventilator maneuver will be preformed. The positive end-expiratory pressure will be increased by 5-10 cm/H20 pressure. This procedure will be aborted if ANY safety criteria are exceeded. During the interval, the IVCCI will be re-measured, the ventilator settings will be recorded, and the ventilator will be return to the initial settings. Since changes of these same magnitude are made daily in clinical practice, the risks to the patients in this study will be minimal and no more than that experienced in the course of usual care.

Conditions

• Respiratory Failure

Timeline

• Start date: 2009-10-01
• Primary completion: 2013-02-01
• Completion: 2013-02-01
• First posted: 2010-06-03
• Last updated: 2024-03-05

Locations

1 site across 1 country: United States