Assessment of inferior vena cava diameter by echocardiography in normal Indian population: A prospective observational study

Patil, Shantanu; Jadhav, Santosh; Shetty, Natraj; Kharge, Jayashree; Puttegowda, Beeresha; Ramalingam, Rangraj; Cholenahally, Manjunath Nanjappa

doi:10.1016/j.ihj.2016.06.009

Cited by 37 publications

(44 citation statements)

References 25 publications

(24 reference statements)

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“…We determined a pre‐donation IVCmax of 17.4 ± 3.1 mm and IVCmin of 10.1 ± 2.7 in our healthy population sample. Patil et al studied IVC diameter in 4126 volunteers from an healthy population and reported an IVCmax of 16.9 ± 3.7 and IVC min diameter of 10.4 ± 2.2, comparable with our own results . We detected a 2.2 mm decrease in IVCmax after blood donation in our BD group.…”

Section: Discussionsupporting

confidence: 91%

A comparison of noninvasive methods for early detection of hemorrhage: Inferior vena cava ultrasonography and spectrophotometric hemoglobin levels

Yamanoğlu

Söğüt

et al. 2019

J of Clinical Ultrasound

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Objectives Blood hemoglobin concentration measurements using a spectrophotometric method (SpHb), and inferior vena cava ultrasonography (IVC‐US) are noninvasive methods used to follow‐up hemorrhages. We compared their efficacy using voluntary blood donation as a model of moderate (approx. 500 mL) blood loss. Methods In this prospective observational study enrolling blood‐donor volunteers (BD) and matched controls, we recorded SpHb, IVC diameters, and vital signs. Changes in variables from baseline were compared between BD and controls using the paired t test and Wilcoxon signed rank test. Results We included 118 subjects in the BD group and 95 healthy subjects in the control group. Changes in IVC maximum diameter, IVC minimum diameter, pulse rate, mean arterial pressure, pulse pressure, and shock index, but not in other variables, were significantly different in the BD and the control group (P < 0.05). IVCmax ≥1.1 mm yielded a 74% sensitivity and 77% specificity (PPV 79.8%, NPV 70.2%) in detecting early hemorrhage. With these cutoff values, IVCmax or PR reached a 90% sensitivity, while IVCmin and PR reached 98% specificity. Conclusions IVC ultrasound may be superior to SpHb in predicting blood loss and may be useful in addition to vital signs for its follow‐up.

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Section: Discussionsupporting

confidence: 91%

A comparison of noninvasive methods for early detection of hemorrhage: Inferior vena cava ultrasonography and spectrophotometric hemoglobin levels

Yamanoğlu

Söğüt

et al. 2019

J of Clinical Ultrasound

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“…29,71 Although US assessment of IVC is generally believed to be very effective in estimating the intravascular volume and have a crucial influence, a question remains about the accuracy for new patients accepted at emergency care units 72 because the size and dynamics of IVC vary significantly from patient to patient. 73 A high accuracy is generally expected by measuring IVC repeatedly at every visit, which makes it possible to detect an abnormal IVC in contrast to a normal IVC, 29 and by sharing data recorded by US, e.g., phUS, and various clinical information with other key personnel of the medical care team, especially physicians and US experts, via a network or the Internet. This way, a consistent level of care quality will be ensured also for newly arriving patients.…”

Section: Us For Clinical Decision Making In Home Medical Carementioning

confidence: 99%

Development of Pocket‐sized Hand‐held Ultrasound Devices Enhancing People's Abilities and Need for Education on Them

Kobayashi

Kato

2016

J of Gen and Family Med

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Today, ultrasound devices (US) for medical and healthcare uses are undergoing a revolutionary transition from conventional cart‐based US to pocket‐sized hand‐held US (phUS) in terms of size, performance, cost, and portability. Each type has its best area of application. For example, while cart‐based US is essential for elaborate and precise diagnoses in laboratories, phUS is ideal for quick point‐of‐care applications and data‐sharing via a network inside and outside medical institutions because it is handy, portable, and networking. The remarkable progress in electronics technologies has indeed made these devices ever smaller, smarter, and more affordable, leading to their growing proliferation in Japan. As we believe this irreversible trend will quickly spread into other parts of the world, we feel a pressing need to establish an education system, rules, and guidelines for governing US (especially phUS), first domestically and then globally.

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“…For assessing intravascular volume status, IVC measurements using ultrasonography (USG) is a reliable noninvasive technique. Central venous pressure (CVP) has a positive correlation with IVC size and negative correlation with IVC collapsibility index (IVCCI) . IVCCI can be a better indicator than IVC diameter, as it is a dynamic parameter which takes the variation of diameter over the respiratory cycle into account .…”

Section: Introductionmentioning

confidence: 99%

“…Central venous pressure (CVP) has a positive correlation with IVC size and negative correlation with IVC collapsibility index (IVCCI). 17,18 IVCCI can be a better indicator than IVC diameter, as it is a dynamic parameter which takes the variation of diameter over the respiratory cycle into account. 19 IVC diameter may be underestimated due to the "cylinder tangent effect" if the US beam travels through the vessel longitudinally in an offcentered plane.…”

Section: Introductionmentioning

confidence: 99%

Comparison between clinical judgment and integrated lung and inferior vena cava ultrasonography for dry weight estimation in hemodialysis patients

Thomas

Mohandas

George

2019

Hemodialysis International

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Introduction: Correct dry weight estimation is very crucial for hemodialysis (HD) patients to maintain euvolemia. Most dialysis centers practice clinical judgment for dry weight estimation, which is subjective and can differ significantly from the actual weight. We designed this study to redefine the clinically estimated dry weight of patients on HD using integrated lung–inferior vena cava (IVC) ultrasonography (USG) and compare the symptoms arising due to volume overload and/or volume depletion before and after modifying the dry weight. Methods: Breathlessness and orthostatic giddiness were scored and documented for 2 weeks while patients were on HD based on clinically estimated dry weight and again for 2 weeks after redefining dry weight using lung–IVC USG. New dry weight was defined as the weight of the patient at which the number of B‐lines was <4 on eight site lung USG and IVC collapsibility index was between 50% and 75%. Findings: After redefining the dry weight, 34 patients (group I) had change in dry weight and 40 (group II) had no change. There was 0.21 ± 1.80 reduction in the score for orthostatic giddiness in group I and 0.03 ± 0.16 in group II (P = 0.147). The score for breathlessness during the 24 hours following dialysis reduced by 0.21 ± 0.41 in group I, but did not change in group II (P = 0.003). Score for breathlessness in the predialysis day reduced by 0.56 ± 0.56 in group I and by 0.05 ± 0.22 in group II (P < 0.001). Discussion: Symptoms related to volume overload and depletion were less when HD prescription was based on lung–IVC USG defined dry weight.

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Assessment of inferior vena cava diameter by echocardiography in normal Indian population: A prospective observational study

Abstract: Our findings corroborate the correlations between height, weight and BMI with IVC diameter. Future studies could be focused to bring about a steadfast formula for calculating IVC diameter based on demographic parameters of an individual.

Cited by 37 publications

References 25 publications

A comparison of noninvasive methods for early detection of hemorrhage: Inferior vena cava ultrasonography and spectrophotometric hemoglobin levels

A comparison of noninvasive methods for early detection of hemorrhage: Inferior vena cava ultrasonography and spectrophotometric hemoglobin levels

Development of Pocket‐sized Hand‐held Ultrasound Devices Enhancing People's Abilities and Need for Education on Them

Comparison between clinical judgment and integrated lung and inferior vena cava ultrasonography for dry weight estimation in hemodialysis patients

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