Vascular assessment

Focused Intensive Care Ultrasound ◽

10.1093/med/9780198749080.003.0018 ◽

2019 ◽

pp. 161-168

Author(s):

Colin Bigham

Keyword(s):

Venous Thrombosis ◽

Vascular Access ◽

Lower Limb ◽

Ultrasound Guided ◽

Ultrasound Technique ◽

Vascular Assessment ◽

Arteries And Veins

Ultrasound-guided vascular access requires knowledge of the anatomy and the ultrasound appearances of normal and abnormal vessels in all regions where vascular access may be undertaken. This chapter describes the optimal ultrasound technique for imaging vessels, how to differentiate arteries and veins, and the normal appearances of the jugular, axillary, femoral, and upper and lower limb vessels. The technique for undertaking a lower limb scan to assess for venous thrombosis is outlined.

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Diagnosis of Lower Limb Venous Thrombosis by Doppler Ultrasound Technique

Archives of Surgery ◽

10.1001/archsurg.1972.04180020054010 ◽

1972 ◽

Vol 104 (2) ◽

pp. 174 ◽

Cited By ~ 69

Author(s):

Bernard Sigel

Keyword(s):

Venous Thrombosis ◽

Doppler Ultrasound ◽

Lower Limb ◽

Ultrasound Technique

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Ultrasound Guided Peripheral Intravenous Line Placement Using the Incremental Advancement Method

Ultrasound Guided Procedures and Radiologic Imaging for Pediatric Anesthesiologists ◽

10.1093/med/9780190081416.003.0004 ◽

2021 ◽

pp. 25-36

Author(s):

Anna Clebone

Keyword(s):

Cross Section ◽

Vascular Access ◽

Central Line ◽

Ultrasound Guided ◽

Color Flow ◽

Intravenous Line ◽

Line Placement ◽

Arteries And Veins

Chapter 4 discusses the dynamic use of ultrasound to guide the placement of a peripheral intravenous (IV) line. Ultrasound can be used to guide placement of multiple types of vascular access. Arteries and veins are sonographically similar in cross section: hyperechoic circles with hypoechoic interiors. Arteries are thicker walled and characteristically pulsatile. Veins are more susceptible to compression. Doppler or color flow can distinguish the amplitude and direction of flow. Skill with placing peripheral ultrasound guided IV lines in patients with difficult IV access can often help the practitioner avoid the need to place a central line, assuming the central line is not needed for other indications.

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

Thrombosis and Haemostasis ◽

10.1055/s-0038-1651178 ◽

1993 ◽

Vol 69 (01) ◽

pp. 008-011 ◽

Cited By ~ 22

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.

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Estimation of culprit lesion using brachial artery RI and radial artery RI by ultrasound-guided vascular access

Choonpa Igaku ◽

10.3179/jjmu.jjmu.a.118 ◽

2018 ◽

Vol 45 (6) ◽

pp. 605-610

Author(s):

Masahito MINAMI ◽

Mayu TUJIMOTO ◽

Ayako NISHIMOTO ◽

Mika SAKAGUCHI ◽

Yasuhiro OONO ◽

...

Keyword(s):

Radial Artery ◽

Vascular Access ◽

Brachial Artery ◽

Culprit Lesion ◽

Ultrasound Guided

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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

ISRN Radiology ◽

10.1155/2014/519875 ◽

2014 ◽

Vol 2014 ◽

pp. 1-5 ◽

Cited By ~ 3

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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Study on prevention of lower limb venous thrombosis after total hip arthroplasty by combined pneumatic therapy in rivaroxaban

Asian Journal of Surgery ◽

10.1016/j.asjsur.2021.06.022 ◽

2021 ◽

Author(s):

Fengai Wei ◽

Chen Bang ◽

Jing Zhang

Keyword(s):

Total Hip Arthroplasty ◽

Venous Thrombosis ◽

Hip Arthroplasty ◽

Lower Limb ◽

Total Hip

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Ultrasound-guided continuous sciatic nerve blocks in two children with venous malformations in the lower limb

Canadian Journal of Anesthesia/Journal canadien d anesthésie ◽

10.1007/bf03026804 ◽

2007 ◽

Vol 54 (11) ◽

pp. 952-953 ◽

Cited By ~ 9

Author(s):

Geert Jan van Geffen ◽

Jörgen Bruhn ◽

Mathieu Gielen

Keyword(s):

Sciatic Nerve ◽

Lower Limb ◽

Venous Malformations ◽

Ultrasound Guided ◽

Nerve Blocks

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Catastrophic Concomitant Arterial and Venous Thrombosis in a Mild COVID-19-Positive Patient

International Journal of Angiology ◽

10.1055/s-0041-1735200 ◽

2021 ◽

Author(s):

Raka A. Nugraha ◽

Hary S. Muliawan ◽

Nyityasmono T. Nugroho ◽

Muhammad Ikhsan ◽

Suko Adiarto

Keyword(s):

Critical Illness ◽

Venous Thrombosis ◽

Lower Limb ◽

The Other ◽

Ambulatory Setting ◽

Current Evidence ◽

Global Burden ◽

Significant Morbidity ◽

Ambulatory Patients ◽

Clinical Consequences

AbstractSince its first discovery in late 2019, coronavirus disease 2019 (COVID-19) has been a global burden associated with significant morbidity and mortality. COVID-19 has been correlated with the development of hypercoagulable state that predisposes the patients to a higher risk of thromboembolism. Current evidence suggests higher incidence of thrombosis, particularly venous thrombosis, among hospitalized COVID-19 patients, mostly with critical illness. On the other hand, there is currently no data regarding the incidence of vivid thrombosis in ambulatory patients with mild COVID-19 and the incidence of concomitant arterial and venous thrombosis in COVID-19 is extremely rare. Herein, we describe catastrophic outcomes of concomitant lower limb arterial and venous thrombosis in a patient with mild COVID-19. This report highlights the occurrence of concomitant arterial and venous thrombosis in ambulatory setting and that this phenomenon resulted in catastrophic clinical consequences.

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