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Right jugular vein distensibility index / Pleth variability index / Pulse pressure variation · Observational Study
ClinicalTrials.gov · September 8, 2026
Early or partial results. Treat as a signal, not a conclusion.
This is a completed observational study registration examining whether the right internal jugular vein distensibility index correlates with the inferior vena cava distensibility index as a faster, more accessible alternative for hemodynamic assessment in mechanically ventilated critically ill patients. No results have been posted in this registry record, so no evidence of efficacy or correlation strength can be evaluated at present.
Observational. Critical Illness, Sepsis, Hemodynamic Monitoring, Assessment of Intravascular Volume Status in Mechanically Ventilated Critically Ill Patients; age from 18 Years. Intervention: Study Group. Compared with: Inferior vena cava distensibility index via ultrasonography (reference standard for comparison).. n = 82. 1 site: Turkey (Türkiye).
This is a completed observational study registration examining whether the right internal jugular vein distensibility index correlates with the inferior vena cava distensibility index as a faster, more accessible alternative for hemodynamic assessment in mechanically ventilated critically ill patients. No results have been posted in this registry record, so no evidence of efficacy or correlation strength can be evaluated at present.
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
If the posted results demonstrate strong correlation and faster acquisition, RJV-DI could provide a practical alternative when IVC visualization is difficult. Clinicians should await publication of the actual findings before interpreting the utility of this approach.
This is a completed observational registry record with no posted results; it describes a planned diagnostic correlation study in 82 critically ill patients but reports no outcomes, effect sizes, or conclusions.
As stated by the source record.
Quoted from the source exactly as published.
If the posted results demonstrate strong correlation and faster acquisition, RJV-DI could provide a practical alternative when IVC visualization is difficult. Clinicians should await publication of the actual findings before interpreting the utility of this approach.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
What is missing. This record has no key findings. That is a gap in the analysis, not a judgement about the study.
Registry record from ClinicalTrials.gov (NCT07807709). This is a study registration, not published results. Lead sponsor: Gaziosmanpasa Research and Education Hospital. Recruitment status: COMPLETED. Study type: OBSERVATIONAL. Enrollment: 82 participants (ACTUAL). Conditions: Critical Illness, Sepsis, Hemodynamic Monitoring, Assessment of Intravascular Volume Status in Mechanically Ventilated Critically Ill Patients. Interventions: DIAGNOSTIC_TEST: Pleth variability index; DIAGNOSTIC_TEST: Pulse pressure variation; DIAGNOSTIC_TEST: Stroke volume variation; DIAGNOSTIC_TEST: Right jugular vein distensibility index; DIAGNOSTIC_TEST: Inferior Vena Cava Distensibility Index. Primary outcome measures: Correlation Between the Right Internal Jugular Vein Distensibility Index and Inferior Vena Cava Distensibility Index , During a single assessment session on Day 1. Brief summary: Assessment of intravascular volume status is an important component of hemodynamic management in critically ill patients. Several noninvasive and minimally invasive parameters, including the pleth variability index (PVI), pulse pressure variation (PPV), stroke volume variation (SVV), and ultrasonographic measurements of venous diameter variation, can be used for this purpose. Although the inferior vena cava distensibility index (IVC-DI) is commonly evaluated using ultrasonography, visualization of the inferior vena cava may be technically difficult or time-consuming in some patients. The right internal jugular vein is more superficial and may therefore provide a faster and more accessible alternative. The primary aim of this prospective observational study is to evaluate the correlation and agreement between the right internal jugular vein distensibility index (RJV-DI) and IVC-DI in mechanically ventilated adult intensive care unit patients. The secondary aims are to compare the correlations of RJV-DI and IVC-DI with PVI, PPV, and SVV and to compare the acquisition times of the two ultrasonographic measurements. The study will assess whether RJV-DI may provide a practical and faster alternative for hemodynamic assessment, particularly when visualization of the inferior vena cava is difficult.
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