Deep venous thrombosis of the lower limb and of the iliac caval axis: diagnostic role of duplex and color flow mapping (C.F.M.) sonography

1995 ◽  
Vol 2 (4) ◽  
pp. S8
Keyword(s):  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Lower Limb ◽  
Flow Mapping ◽  
Color Flow ◽  
Color Flow Mapping ◽  
Diagnostic Role

Role of an age-adjusted D-dimer cutoff level in the diagnosis algorithm of lower limb deep venous thrombosis in outpatients

2020 ◽  
Vol 8 (5) ◽  
pp. 734-740 ◽  
Author(s):  
Xavier Jimenez-Guiu ◽  
Antonio Romera-Villegas ◽  
Malka Huici-Sanchez ◽  
Carlos Martinez-Rico ◽  
Ramon Vila-Coll
Keyword(s):  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Lower Limb ◽  
Diagnosis Algorithm ◽  
D Dimer

The role of color-flow mapping in confirming the association of divided left atrium with an atrioventricular septal defect

1993 ◽  
Vol 3 (1) ◽  
pp. 57-59 ◽  
Author(s):  
Mario Cazzaniga ◽  
Manuel Casanova Gómez ◽  
Walquiria Domínguez de Melo
Keyword(s):  
Left Atrium ◽  
Septal Defect ◽  
Atrioventricular Septal Defect ◽  
Cor Triatriatum ◽  
Flow Mapping ◽  
Cross Sectional ◽  
Color Flow ◽  
Color Flow Mapping ◽  
Unusual Association

SummaryWe describe the unusual association of a divided left atrium (cor triatriatum) with an atrioventricular septal defect with separate atrioventricular orifices in an eight-year-old asymptomatic girl. The diagnosis had been made by cross-sectional echocardiography combined with Doppler technology and color-flow mapping. These methods together demonstrate both the anatomic and hemodynamic findings.

Prophylaxis of Perioperative Venous Thrombosis: Role of Venous Compression

2000 ◽  
Vol 15 (3-4) ◽  
pp. 138-142 ◽  
Author(s):  
J. Silleran-Chassany ◽  
D. Safran
Keyword(s):  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Lower Limb ◽  
Vitamin K Antagonists ◽  
Bleeding Complications ◽  
Duration Of Action ◽  
Risk Of Bleeding ◽  
Increased Risk ◽  
Mechanical Methods

Aim: To review the role of compression treatments in the prevention of perioperative deep venous thrombosis. Method: A review of current literature in the field of prevention of deep venous thrombosis following general and orthopaedic surgery has been conducted. Synthesis: There is a considerable risk of deep venous thrombosis following surgical treatment in hospital. This is particularly high following joint replacement in the lower limb. This may lead to fatal pulmonary embolism or chronic venous insufficiency of the lower limb with leg ulceration and disability. Perioperative deep venous thrombosis may be prevented by a number of drugs. The most frequently used is heparin or the more modern low-molecular-weight heparins (LMWH). Vitamin K antagonists are also commonly used, but have a long duration of action. Dextrans and aspirin have an effect in preventing perioperative venous thrombosis, but this is much less than heparin. Mechanical methods of prevention have the advantage of preventing venous thrombosis without increased risk of bleeding complications. Conclusion: Heparin and LMWH continue to be the most frequently used means of preventing peri-operative deep venous thrombosis in France. There is reliable to evidence to show that mechanical methods of prevention including graduated elastic compression and intermittent pneumatic compression of the lower limb are also effective. These may be used in combination with heparin for increased protection or as an alternative to anticoagulant drugs where there is a risk of bleeding. They are also effective when used alone.

Investigations into the Clinical Utility of Latex D-Dimer in the Diagnosis of Deep Venous Thrombosis

1993 ◽  
Vol 69 (01) ◽  
pp. 008-011 ◽  
Author(s):  
Cedric J Carter ◽  
D Lynn Doyle ◽  
Nigel Dawson ◽  
Shauna Fowler ◽  
Dana V Devine
Keyword(s):  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Lower Limb ◽  
Clinical Utility ◽  
Rapid Test ◽  
Fibrin Degradation Product ◽  
Current Form ◽  
Non Invasive ◽  
Clinically Significant ◽  
D Dimer

SummaryThe serial use of non-invasive tests has been shown to be a safe method of managing outpatients who are suspected of having lower limb deep venous thrombosis (DVT). Objective testing has shown that the majority of these outpatients do not have venous thrombosis. A rapid test to exclude DVT in these patients, without the need for expensive and inconvenient serial non-invasive vascular testing, would have practical and economic advantages.Studies measuring the fibrin degradation product D-dimer using enzyme-linked immunoassays (EIA) in patients with veno-graphically proven DVT suggest that it should be possible to exclude this condition by the use of one of the rapid latex bead D-dimer tests.We have examined 190 patients with suspected DVT using both a latex and an EIA D-dimer assay. The latex D-dimer test used in this study was negative in 7 of the 36 proven cases of DVT. This sensitivity of only 80% is not sufficient to allow this type of assay, in its current form, to be used as an exclusion test for DVT. The same plasma samples were tested with an EIA assay. This information was used to mathematically model the effects of selecting a range of D-dimer discriminant cut off points for the diagnosis of DVT. These results indicate that 62% of suspected clinically significant DVT could have this diagnosis excluded, with a 98% sensitivity, if the rapid latex or equivalent D-dimer test could be reformulated to measure less than 185 ng/ml of D-dimer.

scholarly journals Evaluating the Use of a Negative D-Dimer and Modified Low Wells Score in Excluding above Knee Deep Venous Thrombosis in an Outpatient Population, Assessing Need for Diagnostic Ultrasound

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Maryam Rahiminejad ◽  
Anshul Rastogi ◽  
Shirish Prabhudesai ◽  
David Mcclinton ◽  
Peter MacCallum ◽  
...  
Keyword(s):  
Risk Factor ◽  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Lower Limb ◽  
Clinical Risk Factor ◽  
Diagnostic Pathway ◽  
Clinical Diagnostic ◽  
Retrospective Audit ◽  
Wells Score ◽  
D Dimer

Aims. Colour doppler ultrasonography (CDUS) is widely used in the diagnosis of deep venous thrombosis (DVT); however, the number of scans positive for above knee DVT is low. The present study evaluates the reliability of the D-dimer test combined with a clinical probability score (Wells score) in ruling out an above knee DVT and identifying patients who do not need a CDUS. Materials and Method. This study is a retrospective audit and reaudit of a total of 816 outpatients presenting with suspected lower limb DVT from March 2009 to March 2010 and from September 2011 to February 2012. Following the initial audit, a revised clinical diagnostic pathway was implemented. Results. In our initial audit, seven patients (4.9%) with a negative D-dimer and a low Wells score had a DVT. On review, all seven had a risk factor identified that was not included in the Wells score. No patient with negative D-dimer and low Wells score with no extra clinical risk factor had a DVT on CDUS (negative predictive value 100%). A reaudit confirmed adherence to our revised clinical diagnostic pathway. Conclusions. A negative D-dimer together with a low Wells score and no risk factors effectively excludes a lower limb DVT and an ultrasound is unnecessary in these patients.

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