Inferior Vena Cava Collapsibility Index: Clinical Validation and Application for Assessment of Relative Intravascular Volume

2021 ◽  
Vol 28 (3) ◽  
pp. 218-226
Author(s):  
Matthew J. Kaptein ◽  
Elaine M. Kaptein
Keyword(s):  
Inferior Vena Cava ◽  
Inferior Vena ◽  
Vena Cava ◽  
Clinical Validation ◽  
Intravascular Volume ◽  
Collapsibility Index

Abstract 13532: Comparison of Inferior Vena Cava and Subclavian Vein Collapsibility Index by Ultrasound for Determination of Relative Intravascular Volume in Acute Decompensated Heart Failure

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Yvonne E Kaptein ◽  
Pedro D Salinas ◽  
Payal Sharma ◽  
Ana Christina Perez Moreno ◽  
Nasir Sulemanjee ◽  
...  
Keyword(s):  
Heart Failure ◽  
Inferior Vena Cava ◽  
Subclavian Vein ◽  
Inferior Vena ◽  
Acute Decompensated Heart Failure ◽  
Vena Cava ◽  
Decompensated Heart Failure ◽  
Right Atrial ◽  
Intravascular Volume ◽  
Collapsibility Index

Introduction: Accurate assessment of relative intravascular volume is needed to guide management of acute decompensated heart failure (ADHF). Current assessments include history and physical examination (specific but not sensitive), and N-terminal prohormone of brain natriuretic peptide (NT-proBNP) (sensitive but not specific).Ultrasound (US) of inferior vena cava (IVC) collapsibility with respiration is commonly used to assess intravascular volume and right atrial pressure (RAP) but may be technically challenging. US of subclavian vein (SCV) collapsibility may provide an alternative assessment. Hypothesis: In ADHF, SCV collapsibility index (CI) may correlate with IVC CI and RAP. Methods: Prospective study of non-ventilated patients with ADHF who had NT-proBNP within 24 hours of paired IVC and SCV diameter measurements by US. Results: Forty-two patients (median age 66.5 years, 45% female, and 64% white) were enrolled, with 52 encounters. Cardiovascular comorbidities included hypertension (93%), chronic kidney disease (64%), coronary artery disease (55%), atrial fibrillation/flutter (55%), and valvular disease (55%). Of 38 patients with known heart failure, 63% had HFrEF, 16% HFmrEF, and 21% HFpEF.Correlation of paired IVC CI and SCV CI with relaxed breathing was R = 0.65 (N = 36). Correlation of paired IVC CI and SCV CI with forced inhalation was R = 0.47 (N = 36). Log 10 NT-proBNP was inversely correlated with IVC CI (R = -0.35; N = 51) and SCV CI (R = -0.33; N = 36). For patients with right heart catheterization within 24 hours of US, correlation of RAP to IVC CI was R = -0.53 (N = 9), and RAP to SCV CI was R = -0.65 (N = 9). Moderate or severe tricuspid regurgitation decreased CI independently of intravascular volume and RAP (figure). Conclusions: US measurements of SCV CI correlate well with paired IVC CI in non-ventilated ADHF. RAP by RHC correlated better with SCV CI than with IVC CI. SCV CI may be a reliable alternative to IVC CI in assessing relative intravascular volume.

scholarly journals Can Inferior Vena Cava Diameter and Collapsibility Index Be a Predictor in Detecting Preoperative Intravascular Volume Change in Pediatric Patients?

2021 ◽  
Vol 7 (2) ◽  
pp. 47-51
Author(s):  
Zeliha Cosgun ◽  
Emine Dagistan ◽  
Mehmet Cosgun ◽  
Hayrettin Ozturk
Keyword(s):  
Inferior Vena Cava ◽  
Pediatric Patients ◽  
Inferior Vena ◽  
Vena Cava ◽  
Oral Feeding ◽  
Ultrasound Measurement ◽  
Preliminary Evaluation ◽  
Intravascular Volume ◽  
Fasting Period ◽  
Collapsibility Index

Abstract Background: Inferior vena cava (IVC) ultrasound measurement is a reliable indicator used in the assessment of intravascular volume status. The aim of this study was to evaluate intravascular volume changes in pediatric patients by measuring the IVC diameter and collapsibility index (CI) in children whose oral feeding was restricted preoperatively. Material and Methods: From May 2018 to October 2018, a total of 55 pediatric patients who were scheduled for surgery were included in this prospective, observational, cohort study. Fasting and satiety IVC diameters and CIs of patients were determined by ultrasonographic evaluation twice: in the preoperative preliminary evaluation, when the patients were satiated, and before surgery, during a fasting period of 6–8 hours. Ultra-sonographic data were recorded and compared between fasting and satiety periods. Results: In the grey scale (B-mode), mean IVC diameter was significantly higher when the patients were satiated, compared to the measurements made just before surgery during the fasting period. In the M-mode, the mean IVC diameter was significantly higher only during the inspiratory phase when the patients were satiated, while during the expiratory phase it was detected to be statistically similar. Mean CI was significantly higher in the immediate preoperative period, compared to the assessment made when satiated. Conclusion: Preoperative ultrasound IVC diameter and CI measurement can be a practical and useful method for evaluating preoperative intravascular volume in children.

scholarly journals Measurement of Inferior Ven Cava Collapsibility Index and Its Correlation to Central Venous Pressure in Adult Critically Ill Patients a Prospective Observational Study

2020 ◽  
Vol 5 (1) ◽  
Keyword(s):  
Inferior Vena Cava ◽  
Central Venous Pressure ◽  
Inferior Vena ◽  
Venous Pressure ◽  
Vena Cava ◽  
Volume Status ◽  
P Value ◽  
Central Venous ◽  
Collapsibility Index ◽  
Status Assessment

Fluid therapy is an essential component part management of critically ill patients. Proper estimation of the amount of needed fluids is of great importance due to the well-established adverse effects of marked negative and positive fluids balance. Central venous pressure has been widely used by ICU physicians for volume status assessment. Several methods have been postulated for volume status assessment, among which is the inferior vena cava collapsibility index. As the inferior vena cava is a thin-walled capacitance vessel that adjusts to the body’s volume status by changing its diameter depending on the total body fluid volume. Giving the fact that bed-side ultrasonographic measurement of inferior vena cava diameters is an available, non-invasive, reproducible and quiet easy-to-learn technique, it can provide a safe and quiet reliable replacement of central venous pressure measurement for assessment of volume status assessment. The aim of this study was to find statistical correlation between central venous pressure and caval index, as a step towards validating the above mentioned replacement. 86 critically ill patients from ICU population were enrolled. Simultaneous measurements of central venous pressure and inferior vena cava collapsibility index were observed and recorded on four sessions. Patients were also grouped based on their mode of ventilation and central venous pressure values in order to compare the strength of correlation between various populations. The results showed that Inferior vena cava collapsibility index has significant inverse correlation with CVP value (r= -85, p value ˂0.001 at 95% CI) and it better correlated with mean arterial blood pressure and lactate clearance as compared to central venous pressure. However it correlated better with CVP in spontaneously breathing patients (r= -0.86, p value ˂0.001) than in mechanically ventilated patients (r= -0.84, p value ˂0.001). Inferior vena cava collapsibility index has shown to correlate better with CVP value in lower values (˂ 10 cmH2O) (r= -0.8, p value ˂0.001) than in higher values (≥ 10 cmH2O) (r= -0.6, p value ˂0.001). In addition, an inferior vena caval collapsibility index cut-off value of 29% was shown to discriminate between CVP values ˂10 cmH2O and values ≥10 cmH2O with high Sensitivity (88.6%) and specificity (80.4%). In conclusion, inferior vena cava collapsibility index has a strong inverse relationship with central venous pressure which is more pronounced at low central venous pressure values. Point-of-care ultrasonographically-measured inferior vena cava collapsibility index is very likely to be a good alternative to central venous pressure measurement with a high degree of precision and reproducibility. However, Wide scale studies are needed to validate its use in different patient populations.

Ultrasound reference values for inferior vena cava diameter and collapsibility index among adult Nigerians

2019 ◽  
Vol 26 (1) ◽  
pp. 25
Author(s):  
AdemolaA Adeyekun ◽  
OguguaAnnie Ifijeh ◽  
AdenikeO Akhigbe ◽  
MohammedMunir Abubakar
Keyword(s):  
Inferior Vena Cava ◽  
Reference Values ◽  
Inferior Vena ◽  
Vena Cava ◽  
Collapsibility Index ◽  
Inferior Vena Cava Diameter

Respiratory changes in biometry of suprarenal inferior vena cava in patients with varicose veins of lower extremities

2020 ◽  
pp. 026835552097413
Author(s):  
Yury Rusinovich ◽  
Volha Rusinovich
Keyword(s):  
Inferior Vena Cava ◽  
Inferior Vena ◽  
Venous Return ◽  
Varicose Veins ◽  
Vena Cava ◽  
Lower Extremities ◽  
P Value ◽  
Venous Disease ◽  
Venous Compliance ◽  
Collapsibility Index

Aim This study examines respiratory biometry of inferior vena cava in patients with varicose veins of lower extremities. Material and Methods We performed retrospective analysis of clinical and ultrasound data of 67 patients with primary varicose veins. Results The largest expiratory (mean 16.2 mm, p-value 0.09) and inspiratory (mean 8.2 mm, p-value 0.02) inferior vena cava diameters were in C3 Clinical Etiological Anatomical Pathophysiological clinical class; the smallest expiratory diameters (mean 13.1 mm, p-value 0.5) were in C6 class; the smallest inspiratory diameters (mean 4.6 mm, intercept) were in C2 class. C2 class was associated with highest inferior vena cava collapsibility index (mean 68.2%, intercept); C6 class was associated with lowest collapsibility index (mean 48.3%, p-value 0.04). Recurrent varices in comparison with previously untreated were associated with smaller inspiratory diameters of inferior vena cava (mean 4.4 mm, p-value 0.005), smaller expiratory diameters (mean 13.4 mm, p-value 0.06) and higher collapsibility index (mean 68.5%, p-value 0.005). Patients with recurrent and bilateral varicose veins had identical respiratory biometry of inferior vena cava. Older age was associated with smaller inferior vena cava diameters (p-value <0.01). Conclusion Clinical presentation of varicose veins is associated with different respiratory biometry of suprarenal inferior vena cava. C6 clinical class in comparison with C2 clinical class is associated with lower central venous compliance possible due to the narrowing of inferior vena cava. Smaller inferior vena cava diameters and higher collapsibility index in recurrent subgroup in comparison with previously untreated can be a sign of the significantly altered pressure gradient between the systemic capillaries and the right heart and impaired peripheral venous return. Narrowing of inferior vena cava with age can be a sign of more profound changes in systemic venous return with age in patients with varicose veins in comparison to those without chronic venous disease.

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