Evidence map›Paper›PMID 28470976›Full record

ArticleJournal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine2017

Qualitative Slow Blood Flow in Lower Extremity Deep Veins on Doppler Sonography: Quantitative Assessment and Preliminary Evaluation of Correlation With Subsequent Deep Venous Thrombosis Development in a Tertiary Care Oncology Center.

Corey T Jensen, Antoun Chahin, Veral D Amin, Ahmed M Khalaf, Khaled M Elsayes, Nicolaus Wagner-Bartak, Bo Zhao, Shouhao Zhou, Deepak G Bedi

Open access · greenAbstract readEvaluation Study
In one paragraph

Article in Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.4field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 27 citations in OpenAlex.

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  5. Review
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  7. Design and Characterization of an Ultrasound Transducer for Combined Histotripsy-Thrombolytic Therapy.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2022
    Article
  8. Article
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  10. Thrombosis associated withExperimental and therapeutic medicine · 2021
    Review
  11. Clot Degradation Under the Action of Histotripsy Bubble Activity and a Lytic Drug.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2021
    Article
  12. Article
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  15. Article
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  18. Development and Empirical Study of a Lower Extremity Deep Vein Thrombosis Prevention Protocol for Patients Undergoing Gynecologic Laparoscopic Surgery.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Corey T JensenDepartments of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA.
Antoun ChahinDepartments of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA.
Veral D AminDepartments of Diagnostic Radiology, Baylor College of Medicine, Houston, Texas, USA.
Ahmed M KhalafDepartments of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA.
Khaled M ElsayesDepartments of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA.
Nicolaus Wagner-BartakDepartments of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA.
Bo ZhaoInternal Medicine, Division of Nephrology, Baylor College of Medicine, Houston, Texas, USA.
Shouhao ZhouBiostatistics, University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA.
Deepak G BediDepartments of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA.
The University of Texas MD Anderson Cancer Center · USBaylor College of Medicine · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
NCI NIH HHS P30 CA016672
6 · The paper itself

Abstract

objectivesTo determine whether the qualitative sonographic appearance of slow deep venous flow in the lower extremities correlates with quantitative slow flow and an increased risk of deep venous thrombosis (DVT) in oncology patients.

methodsIn this Institutional Review Board-approved retrospective study, we reviewed lower extremity venous Doppler sonographic examinations of 975 consecutive patients: 482 with slow flow and 493 with normal flow. The subjective slow venous flow and absence of initial DVT were confirmed by 2 radiologists. Peak velocities were recorded at 3 levels. Each patient was followed for DVT development. The associations between DVT and the presence of slow venous flow were examined by the Fisher exact test; a 2-sample t test was used for peak velocity and DVT group comparisons. The optimal cutoff peak velocity for correlation with the radiologists' perceived slow flow was determined by the Youden index.

resultsDeep venous thrombosis development in the slow-flow group (21 of 482 [4.36%]) was almost doubled compared with patients who had normal flow (11 of 493 [2.23%]; P = .0456). Measured peak venous velocities were lower in the slow-venous flow group (P < .001). Patients with subsequent DVT did not have a significant difference in venous velocities compared with their respective patient groups. The sum of 3 venous level velocities resulted in the best cutoff for dichotomizing groups into normal versus slow venous flow.

conclusionsQualitative slow venous flow in the lower extremities on Doppler sonography accurately correlates with quantitatively slower flow, and this preliminary evaluation suggests an associated mildly increased rate of subsequent DVT development in oncology patients.

Indexed as

Tertiary Care CentersBlood Flow VelocityEvaluation Studies as TopicFemaleHumansLower ExtremityMaleMiddle AgedReproducibility of ResultsRetrospective StudiesTertiary Health CareUltrasonography, DopplerVenous Thrombosisdeep venous thrombosisvascular ultrasoundvenous flowvenous thromboembolismvenous thrombosis

Identifiers

PMID28470976
PMCPMC5568938
OpenAlexW2617452242

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.