Evidence map›Paper›PMID 31876310›Full record

ArticleArtificial organs2020

Circulatory loop design and components introduce artifacts impacting in vitro evaluation of ventricular assist device thrombogenicity: A call for caution.

Mengtang Li, Ryan Walk, Yana Roka-Moiia, Jawaad Sheriff, Danny Bluestein, Eric J Barth, Marvin J Slepian

Open access · greenAbstract read
In one paragraph

Article in Artificial organs, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.3field-weighted citation impact, top 43% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Protruding Objects in the Membrane Lung Outlet May Increase Thrombogenicity: Fluid Dynamical Insights.ASAIO journal (American Society for Artificial Internal Organs : 1992) · 2026
    Article
  4. Article
  5. [Design of a benchmark pump model and optimization of hemolysis testing protocol for evaluation of blood pump hemocompatibility].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2026
    Article
  6. Article
  7. 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

7 authors at 3 institutions in 1 country.

Mengtang LiDepartment of Mechanical Engineering, Vanderbilt University, Nashville, TN, USA.ORCID https://orcid.org/0000-0002-3594-4808
Ryan WalkDepartment of Medicine, Sarver Heart Center, University of Arizona, Tucson, AZ, USA.
Yana Roka-MoiiaDepartment of Medicine, Sarver Heart Center, University of Arizona, Tucson, AZ, USA.
Jawaad SheriffDepartment of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA.ORCID https://orcid.org/0000-0002-1297-0739
Danny BluesteinDepartment of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA.
Eric J BarthDepartment of Mechanical Engineering, Vanderbilt University, Nashville, TN, USA.
Marvin J SlepianDepartment of Medicine, Sarver Heart Center, University of Arizona, Tucson, AZ, USA.ORCID https://orcid.org/0000-0002-7864-6691
University of Arizona · USStony Brook University · USVanderbilt University · US

Funding

Multiscale Modeling of Blood Flow and Platelet Mediated ThrombosisU01HL131052 · NHLBI · STATE UNIVERSITY NEW YORK STONY BROOK · PI BLUESTEIN, DANNY · 2016 to 2020
$3.6M
NHLBI NIH HHS U01 HL131052NIH HHS U01 1U01HL131052-01A1
6 · The paper itself

Abstract

Mechanical circulatory support (MCS) devices continue to be hampered by thrombotic adverse events (AEs), a consequence of device-imparted supraphysiologic shear stresses, leading to shear-mediated platelet activation (SMPA). In advancing MCS devices from design to clinical use, in vitro circulatory loops containing the device under development and testing are utilized as a means of assessing device thrombogenicity. Physical characteristics of these test circulatory loops may also contribute to inadvertent platelet activation through imparted shear stress, adding inadvertent error in evaluating MCS device thrombogenicity. While investigators normally control for the effect of a loop, inadvertent addition of what are considered innocuous connectors may impact test results. Here, we tested the effect of common, additive components of in vitro circulatory test loops, that is, connectors and loop geometry, as to their additive contribution to shear stress via both in silico and in vitro models. A series of test circulatory loops containing a ventricular assist device (VAD) with differing constituent components, were established in silico including: loops with 0~5 Luer connectors, a loop with a T-connector creating 90° angulation, and a loop with 90° angulation. Computational fluid dynamics (CFD) simulations were performed using a

Indexed as

Equipment DesignAdultArtifactsBlood PlateletsComputer SimulationHealthy VolunteersHeart-Assist DevicesHemodynamicsHumansPlatelet ActivationShear StrengthStress, MechanicalThrombosiscomputational fluid dynamicsmock circulatory loopplatelet activationshear-mediated platelet activationshear stressthrombogenicityventricular assist device

Identifiers

PMID31876310
PMCPMC7972931
OpenAlexW2996934088

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.