Imaging for venous thrombosis

ESC CardioMed ◽  
2018 ◽  
pp. 2806-2810
Author(s):  
Frederikus A. Klok ◽  
Charlotte E. A. Dronkers ◽  
Menno V. Huisman
Keyword(s):  
Deep Vein Thrombosis ◽  
Venous Thrombosis ◽  
Imaging Techniques ◽  
Clinical Decision ◽  
Cerebral Vein ◽  
Vein Thrombosis ◽  
Diagnostic Work ◽  
Deep Vein ◽  
Work Up ◽  
Test Probability

The diagnostic work-up of upper and of lower extremity deep vein thrombosis starts with the assessment of the pre-test probability by using a validated clinical decision rule, followed by imaging if deep vein thrombosis cannot reliably be rule out. For splanchnic vein thrombosis and cerebral vein thrombosis, the diagnostic assessment starts with imaging. Currently, the imaging techniques most widely used in clinical practice are compression ultrasonography, computed tomography, and magnetic resonance imaging, with a diagnostic standard dependent on the specific site of the venous thrombosis. This chapter provides an overview of the diagnostic accuracy and potential pitfalls of imaging techniques for the different sites of venous thrombosis.

A new rapid bedside assay for quantitative testing of D-Dimer (Cardiac D-Dimer) in the diagnostic work-up for deep vein thrombosis

2003 ◽  
Vol 111 (3) ◽  
pp. 149-153 ◽  
Author(s):  
Cristina Legnani ◽  
Simone Fariselli ◽  
Michela Cini ◽  
Gaetana Oca ◽  
Carmela Abate ◽  
...  
Keyword(s):  
Deep Vein Thrombosis ◽  
Vein Thrombosis ◽  
Diagnostic Work ◽  
Deep Vein ◽  
Work Up ◽  
Diagnostic Work Up ◽  
D Dimer

Impact of gender on the clinical presentation and diagnosis of deep-vein thrombosis

2010 ◽  
Vol 103 (04) ◽  
pp. 710-717 ◽  
Author(s):  
Hanno Riess ◽  
Viola Hach-Wunderle ◽  
Horst Gerlach ◽  
Heike Carnarius ◽  
Sonja Eberle ◽  
...  
Keyword(s):  
Deep Vein Thrombosis ◽  
Clinical Presentation ◽  
Risk Groups ◽  
Pretest Probability ◽  
Probability Score ◽  
Vein Thrombosis ◽  
Diagnostic Work ◽  
Deep Vein ◽  
Work Up ◽  
Diagnostic Work Up

SummaryIt is uncertain whether gender influences the clinical presentation of deep-vein thrombosis (DVT) and the discriminative value of the Wells diagnostic pretest probability score. The aim of the study was to determine whether gender impacts the clinical presentation and diagnosis of DVT. The study analysed a cohort of 4,976 outpatients with clinically suspected DVT of the leg prospectively recruited by 326 vascular medicine physicians in the German ambulatory care sector between October and December 2005. The diagnosis of DVT was based on compression ultrasonography in 96% of patients. Among 4,777 patients who had a diagnostic work-up for DVT there were more women (n=2,998) than men (n=1,779). However, the prevalence of confirmed DVT was 37.0% (658/1779) in men vs. 24.3% (730/2,998) in women (p<0.001). Among patients with confirmed DVT, proximal DVT was more common in men (59.6% vs. 44.5% in women, p<0.001). Swelling of the leg, pitting oedema and dilated superficial veins were more frequently reported by men (p<0.001). The percentage of patients with a high probability Wells clinical pretest score was higher in men than in women (67.0% vs. 57.0%, p<0.001). However, overall, the score equally discriminated risk groups for DVT in both sexes. In conclusion, women were more frequently referred for a diagnostic work-up for DVT than men, but the prevalence of DVT was higher in men and their thrombotic events were more severe. Nevertheless, the Wells clinical pretest probability score correctly identified low- and high-risk groups in both genders.

The role of fibrin monomers in optimizing the diagnostic work-up of deep vein thrombosis

2007 ◽  
Vol 97 (05) ◽  
pp. 807-813 ◽  
Author(s):  
Fred Haas ◽  
Mariette Agterof ◽  
Marike Vos ◽  
Douwe Biesma ◽  
Roger Schutgens
Keyword(s):  
Deep Vein Thrombosis ◽  
Clinical Score ◽  
Vein Thrombosis ◽  
Clinical Probability ◽  
Diagnostic Work ◽  
Additional Value ◽  
Deep Vein ◽  
Work Up ◽  
Fibrin Monomers ◽  
D Dimer

SummaryDespite the use of a clinical score and D-dimers to exclude deep vein thrombosis (DVT), the majority of patients still need repeated ultrasound (US).The aim of the study was to investigate whether fibrin monomers (FMs), as markers of thrombin generation, have additional value in the diagnosis of DVT. This is a posthoc analysis of 464 outpatients, participants in a management study using D-dimers (Tina-Quant® ) and a clinical score in the exclusion of DVT. Two new FM assays (Auto LIA-FM® and IATRO SF®, Japan) were performed. Overall sensitivity, negative predictive value (NPV) and specificity of the D-dimer test were 98%, 98% and 42%.The optimal cut-off point for the Auto LIAFM test was ≤ 3 µ g/ml with values of 88%, 88% and 59%, respectively. The IATRO SF test had an optimal cut-off point of ≤ 2 µ g/ ml with values of 92%, 81 and 22%, respectively.The NPV of a non-high clinical score and a normal D-dimer (n=97) was 100%. In patients with a high clinical score (n=160), the NPV of the D-dimer was 88%. In these patients, a single US combined with a normal D-dimer or FM test had an equal NPV as serial US (100 versus 98%, respectively) and lead to a reduction in the need for US by 36–53%, respectively. In patients with abnormal D-dimer concentrations (n=343), a normal US combined with a normal Auto LIA-FM test had a NPV of 97%,which was also true for serial US.This could lead to a reduction in the need for US by 45%. The present studied FMs are inferior to theTina-Quant D-dimer test when used as primary screening tool to exclude DVT.Adding these FMs to patients with a normal Tina-Quant D-dimer has no benefit. In patients with a high pretest clinical probability score, a single US in combination with a normal D-dimer or FM test might be as safe as serial US. In patients with abnormal D-dimer concentrations and a normal US, a normal FM test might be able to replace the second US.

DIAGNOSTIC WORK-UP AND DIAGNOSTIC SAFETY IN PATIENTS WITH SUSPECTED DEEP VEIN THROMBOSIS - DATA FROM THE GERMAN TULIPA REGISTRY

2007 ◽  
Vol 5 ◽  
pp. P-W-517-P-W-517
Author(s):  
S.M. Schellong ◽  
H. Gerlach ◽  
V. Hach-Wunderle ◽  
E. Rabe ◽  
H.B. Riess ◽  
...  
Keyword(s):  
Deep Vein Thrombosis ◽  
Vein Thrombosis ◽  
Diagnostic Work ◽  
Deep Vein ◽  
Work Up ◽  
Diagnostic Work Up

Outcome of Anticoagulation in Isolated Distal Deep Vein Thrombosis Compared to Proximal Deep Venous Thrombosis

2021 ◽  
Author(s):  
Danielle T Vlazny ◽  
Ahmed K Pasha ◽  
Wiktoria Kuczmik ◽  
Waldemar E Wysokinski ◽  
Matthew Bartlett ◽  
...  
Keyword(s):  
Deep Vein Thrombosis ◽  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Vein Thrombosis ◽  
Distal Deep Vein Thrombosis ◽  
Deep Vein

Performance of the Wells score in predicting deep vein thrombosis in medical and surgical hospitalized patients with or without thromboprophylaxis: The R-WITT study

2021 ◽  
pp. 1358863X2199467
Author(s):  
Jean-Eudes Trihan ◽  
Michael Adam ◽  
Sara Jidal ◽  
Isabelle Aichoun ◽  
Sarah Coudray ◽  
...  
Keyword(s):  
Deep Vein Thrombosis ◽  
Risk Stratification ◽  
Hospitalized Patients ◽  
Operating Characteristics ◽  
Vein Thrombosis ◽  
Ultrasound Study ◽  
Wells Score ◽  
Deep Vein ◽  
The Impact ◽  
Test Probability

The Wells score had shown weak performance to determine pre-test probability of deep vein thrombosis (DVT) for inpatients. So, we evaluated the impact of thromboprophylaxis on the utility of the Wells score for risk stratification of inpatients with suspected DVT. This bicentric cross-sectional study from February 1, 2018 to January 31, 2019 included consecutive medical and surgical inpatients who underwent lower limb ultrasound study for suspected DVT. Wells score clinical predictors were assessed by both ordering and vascular physicians within 24 h after clinical suspicion of DVT. Primary outcome was the Wells score’s accuracy for pre-test risk stratification of suspected DVT, accounting for anticoagulation (AC) treatment (thromboprophylaxis for ⩾ 72 hours or long-term anticoagulation). We compared prevalence of proximal DVT among the low, moderate and high pre-test probability groups. The discrimination accuracy was defined as area under the receiver operating characteristics (ROC) curve. Of the 415 included patients, 30 (7.2%) had proximal DVT. Prevalence of proximal DVT was lower than expected in all pre-test probability groups. The prevalence in low, moderate and high pre-test probability groups was 0.0%, 3.1% and 8.2% ( p = 0.22) and 1.7%, 4.2% and 25.8% ( p < 0.001) for inpatients with or without AC, respectively. Area under ROC curves for discriminatory accuracy of the Wells score, for risk of proximal DVT with or without AC, was 0.72 and 0.88, respectively. The Wells score performed poorly for discrimination of risk for proximal DVT in hospitalized patients with AC but performed reasonably well among patients without AC; and showed low inter-rater reliability between physicians. ClinicalTrials.gov Identifier: NCT03784937.

Diagnostic Accuracy of a New d-Dimer Assay (Sclavo Auto d-Dimer) for Exclusion of Deep Vein Thrombosis in Symptomatic Outpatients

2016 ◽  
Vol 23 (3) ◽  
pp. 221-228 ◽  
Author(s):  
Cristina Legnani ◽  
Michela Cini ◽  
Mirella Frascaro ◽  
Giuseppina Rodorigo ◽  
Michelangelo Sartori ◽  
...  
Keyword(s):  
Deep Vein Thrombosis ◽  
Imaging Techniques ◽  
False Negative ◽  
High Specificity ◽  
Predictive Values ◽  
Cutoff Value ◽  
Vein Thrombosis ◽  
Number Of Patients ◽  
Deep Vein ◽  
D Dimer

In patients presenting non-high clinical pretest probability (PTP), a negative d-dimer can exclude venous thromboembolism without imaging tests. However, each d-dimer assay should be validated in prospective studies. We evaluated an automated d-dimer immunoassay using the Sclavo Auto d-dimer (Sclavo Diagnostics Int, Sovicille, Italy) provided by Dasit Diagnostica (Cornaredo, Milan, Italy). Three hundred two consecutive outpatients suspected of leg deep vein thrombosis (DVT) with non-high PTP were included. The Sclavo Auto d-dimer assay was evaluated on 2 analyzers (Sysmex CA-7000 and Sysmex CS-2100; Sysmex Corporation, Kobe, Japan, provided by Dasit). The cutoff value (200 ng/mL) was established a priori. Prevalence of DVT was 11.9%. Since no false-negative patients were detected, the sensitivity and negative predictive values (NPVs) were 100% (sensitivity = CA-7000: 100% [95% confidence interval, CI: 93.3-100], CS-2100: 100% [95% CI: 93.3-100]; NPV = CA-7000: 100% [95% CI: 97.9-100], CS-2100: 100% [95% CI: 98.0-100]). Specificity was 65.4% (95% CI: 59.4-71.1) and 69.2% (95% CI: 63.3-74.7) for CA-7000 and CS-2100, respectively. Specificity increased when a higher cutoff value (234 ng/mL) was used for patients aged ≥60 years without compromising the safety. Assay reproducibility was satisfactory at concentrations near the cutoff value (total coefficient of variations <10%). In conclusion, the Sclavo Auto d-dimer assay was accurate when used for DVT diagnostic workup in outpatients with non-high PTP. Based on its high sensitivity and NPV, it can be used as a stand-alone test in outpatients with non-high PTP. Given its high specificity, the number of patients in whom further imaging techniques can be avoided increased, improving the yield of the test.

Low-dose subcutaneous heparin in prevention of deep-vein thrombosis

1972 ◽  
Vol 10 (23) ◽  
pp. 89-91
Keyword(s):  
Pulmonary Embolism ◽  
Deep Vein Thrombosis ◽  
Venous Thrombosis ◽  
Low Dose ◽  
Fatal Pulmonary Embolism ◽  
Vein Thrombosis ◽  
Subcutaneous Heparin ◽  
Prevention And Treatment ◽  
Deep Vein ◽  
Low Dosage

Earlier this year1 we discussed the prevention and treatment of venous thrombosis and concluded that heparin in low dosage seemed the most promising drug for preventing deep-vein thrombosis postoperatively, although the optimum regimen was not yet known. Sharnoff and his associates who began this work 10 years ago claim to have shown that this treatment largely prevents fatal pulmonary embolism.2

Diagnosis of deep-vein thrombosis: Adherence to guidelines and outcomes in real-world health care

2009 ◽  
Vol 102 (12) ◽  
pp. 1234-1240 ◽  
Author(s):  
Horst Gerlach ◽  
Viola Hach-Wunderle ◽  
Eberhard Rabe ◽  
Hanno Riess ◽  
Heike Carnarius ◽  
...  
Keyword(s):  
Health Care ◽  
Deep Vein Thrombosis ◽  
Ambulatory Care ◽  
Real World ◽  
Diagnostic Methods ◽  
World Health ◽  
Vein Thrombosis ◽  
Deep Vein ◽  
Work Up ◽  
Current Guidelines

SummaryCurrent guidelines recommend optimised algorithms for diagnosis of suspected deep-vein thrombosis (DVT). There is little data to determine to what extent real-world health care adheres to guidelines, and which outcome in terms of diagnostic efficiency and safety is achieved. This registry involved patients with clinically suspected DVT of the leg recruited in German ambulatory care between October and December 2005. Registry items were: diagnostic methods applied; diagnostic categories at day 1; and venous thromboembolic events up to 90 days in patients without firmly established DVT. A total of 4,976 patients were recruited in 326 centres. Venous ultrasonography was performed in 4,770 patients (96%), D-dimer assay in 1,773 patients (36%) and venography in 288 patients (6%). At day 1, DVT was confirmed in 1,388 patients (28%), and ruled out in 3,389 patients (68%), and work-up was inconclusive in 199 patients (4%).The rate of venous thromboembolism at 90 days was 0.34% (95% confidence interval [CI]: 0.09 to 0.88) in patients in whom the diagnosis of DVT had been ruled out, and 2.50% (95% CI: 0.69 to 6.28) in patients with inconclusive diagnostic workup. This nationwide evaluation in German ambulatory care revealed that the diagnostic work-up for suspected DVT did not adhere to current guidelines. However, the overall diagnostic safety was excellent, although there is potential for improvement in a well defined minority of patients.The TULIPA registry was funded by GlaxoSmithKline GmbH und Co KG, Munich.

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