Evidence map›Paper›PMID 24571597›Full record

ArticleArtificial organs2014

Temporal leukocyte numbers and granulocyte activation in pulsatile and rotary ventricular assist device patients.

Joshua R Woolley, Jeffrey J Teuteberg, Christian A Bermudez, Jay K Bhama, Kathleen L Lockard, Robert L Kormos, William R Wagner

Abstract read
In one paragraph

Article in Artificial organs, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

9 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Influence of Hematocrit Level and Integrin αCellular and molecular bioengineering · 2024
    Article
  5. Article
  6. Review
  7. Article
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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 2 institutions in 1 country.

Joshua R WoolleyDepartment of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Heart and Vascular Institute, University of Pittsburgh, Pittsburgh, PA, USA.
Jeffrey J Teuteberg
Christian A Bermudez
Jay K Bhama
Kathleen L Lockard
Robert L Kormos
William R Wagner
University of Pittsburgh · USMcGowan Institute for Regenerative Medicine · US

Funding

Multiscale Model of Thrombosis in Artificial CirculationR01HL089456 · NHLBI · CORNELL UNIVERSITY · PI ANTAKI, JAMES F., BUTCHER, JONATHAN TALBOT · 2009 to 2024
$8.5M
Cardiovascular Bioengineering Training ProgramT32HL076124 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SANJEEV G SHROFF · 2005 to 2026
$7.0M
NHLBI NIH HHS R01 HL089456NHLBI NIH HHS R01 HL089456-01NHLBI NIH HHS T32 HL076124NHLBI NIH HHS T32-HL076124
6 · The paper itself

Abstract

Individual ventricular assist device (VAD) design may affect leukocytes and impact immunity. Few studies have presented leukocyte and infection profiles in VAD patients over the course of the implant period. CD11b (MAC-1) expression on granulocytes is an indicator of activation during inflammation, mediating extravasation and the release of reactive oxygen species in tissue. No reported studies have presented MAC-1 expression on circulating granulocytes in VAD patients. Fifty-six patients implanted at a single center with a HeartMate II (HMII; n = 32), HeartWare (HW; n = 12), or Thoratec pneumatic VAD (PVAD; n = 12) between 1999 and 2011 were followed for 120 days of support. The leukocyte profiles and infectious events of all patients were evaluated; additionally, a subset had MAC-1 expression on circulating granulocytes was measured (HMII n = 9; HW n = 7; PVAD n = 4). All groups exhibited a significant peak in leukocyte numbers at postoperative day (POD) 14 while simultaneously experiencing a significant decrease in hematocrit. HMII patients exhibited a 3.2-fold increase in granulocyte MAC-1 expression at POD 14, and the temporal trend over the implant period differed from that experienced by HW patients. Further, HW patients experienced significantly fewer infection events. Alterations in leukocyte profiles and granulocyte activation experienced by VAD patients appear to be device-specific. Elevations in leukocyte activation may be related to an increased risk for infection, although the specific relationship between these phenomena in this patient group is not known.

Indexed as

Heart-Assist DevicesVentricular Function, LeftAdultAgedBiomarkersFemaleGranulocytesHeart FailureHematocritHumansLeukocyte CountLeukocytesMacrophage-1 AntigenMaleMiddle AgedPennsylvaniaBiomarkersMacrophage-1 AntigenArtificial organsCirculatory assist devicesImmunologyInflammatory cellsLeft ventricular assist devicesNeutrophilsSystemic inflammation

Identifiers

PMID24571597
PMCPMC4010558
OpenAlexW2150177545

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.