Evidence map›Paper›PMID 35361346›Full record

ArticleJournal of the American College of Cardiology2022

Mechanical Left Ventricular Unloading in Patients Undergoing Venoarterial Extracorporeal Membrane Oxygenation.

E Wilson Grandin, Jose I Nunez, Brooks Willar, Kevin Kennedy, Peter Rycus, Joseph E Tonna, Navin K Kapur, Shahzad Shaefi, A Reshad Garan

2 registry-linked trialsOpen access · greenAbstract read
In one paragraph

Article in Journal of the American College of Cardiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 74 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed, 4 pooled it
15.6field-weighted citation impact, top 1% 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.

NCT05913622 narecruitingnot on this mapstarted 2023, after this paper: background citation

Randomized Embedded Multifactorial Adaptive Platform in ExtraCorporeal Membrane Oxygenation (REMAP ECMO) - Left Ventricular Unloading Study

TypeinterventionalSponsorErasmus Medical CenterRan2023 to 2028Enrolled430ConditionsCardiogenic ShockArmsIntra-aortic balloon pump
NCT06766006 recruitingnot on this mapstarted 2024, after this paper: background citation

A Multicentric Left Ventricular Venting Strategy Comparison in Patients Receiving Venoarterial Extracorporeal Life Support

TypeobservationalSponsorMaastricht University Medical CenterRan2024 to 2026Enrolled500ConditionsShock, Cardiogenic, Cardiac Arrest, Extracorporeal Membrane Oxygenation ComplicationArmsVenoarterial extracorporeal life support (VA ECLS) implant
3 · Its place in the literature

Who cites it

74 citing papers in PubMed, 4 syntheses or guidelines pooled it, 197 citations in OpenAlex.

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  9. Incidence and In-Hospital Mortality of Ventricular Septal Rupture Following Acute Myocardial Infarction.Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions · 2026
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14 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 1 country.

E Wilson GrandinDivision of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA; Smith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA. Electronic address: wgrandin@bidmc.harvard.edu.
Jose I NunezDepartment of Medicine. Montefiore Medical Center, Bronx, New York, USA.
Brooks WillarDivision of Cardiovascular Medicine, UMass Memorial Medical Center, Worcester, Massachusetts, USA.
Kevin KennedySmith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
Peter RycusExtracorporeal Life Support Organization, Ann Arbor, Michigan, USA.
Joseph E TonnaExtracorporeal Life Support Organization, Ann Arbor, Michigan, USA; Division of Cardiothoracic Surgery and Emergency Medicine, University of Utah, Salt Lake City, Utah, USA.
Navin K KapurThe Cardiovascular Center, Tufts Medical Center, Boston, Massachusetts, USA.
Shahzad ShaefiDivision of Anesthesia and Critical Care, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
A Reshad GaranDivision of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
Beth Israel Deaconess Medical Center · USMontefiore Medical Center · USTufts Medical Center · USUMass Memorial Medical Center · USUniversity of Utah · US

Funding

Deferoxamine for the Prevention of Acute Kidney InjuryR01DK125786 · NIDDK · BRIGHAM AND WOMEN'S HOSPITAL · PI LEAF, DAVID EVAN · 2020 to 2024
$3.5M
Optimizing Selection and Management of Cardiac Arrest Patients Treated with ECMOK23HL141596 · NHLBI · UNIVERSITY OF UTAH · PI TONNA, JOSEPH EDWARD · 2018 to 2022
$945k
Sepsis and the benefits of permissive hypoxiaK08GM134220 · NIGMS · BETH ISRAEL DEACONESS MEDICAL CENTER · PI SHAEFI, SHAHZAD · 2019 to 2022
$775k
NHLBI NIH HHS K23 HL141596NIDDK NIH HHS R01 DK125786NIGMS NIH HHS K08 GM134220
6 · The paper itself

Abstract

backgroundVenoarterial extracorporeal membrane oxygenation (VA-ECMO) increases left ventricular (LV) afterload, potentially provoking LV distention and impairing recovery. LV mechanical unloading (MU) with intra-aortic balloon pump (IABP) or percutaneous ventricular assist device (pVAD) can prevent LV distension, potentially at the risk of more complications, and net clinical benefit remains uncertain.

objectivesThis study aims to determine the association between MU and outcomes for patients undergoing VA-ECMO.

methodsThe authors queried the Extracorporeal Life Support Organization registry for adults receiving peripheral VA-ECMO from 2010 to 2019 and stratified them by MU with IABP or pVAD. The primary outcome was in-hospital mortality; secondary outcomes included on-support mortality and complications during VA-ECMO.

resultsAmong 12,734 VA-ECMO patients, 3,399 (26.7%) received MU: 2,782 (82.9%) IABP and 580 (17.1%) pVAD. MU patients were older (age 56.3 vs 52.7 years) and, before extracorporeal membrane oxygenation, more often required >2 vasopressors (41.7% vs 27.2%) and had respiratory (21.1% vs 15.9%), renal (24.6% vs 15.8%), and liver failure (4.4% vs 3.1%) (all P < 0.001). MU patients had lower in-hospital mortality (56.6% vs 59.3%, P = 0.006), which persisted in multivariable modeling (adjusted OR [aOR]: 0.84; 95% CI: 0.77-0.92; P < 0.001). MU was associated with more cannula site bleeding (aOR: 1.25; 95% CI: 1.11-1.40; P < 0.001) and hemolysis (aOR: 1.27; 95% CI: 1.03-1.57; P = 0.02). Compared to pVAD, MU patients with IABP had similar mortality (aOR: 0.80; 95% CI: 0.64-1.01; P = 0.06) and less medical bleeding (aOR: 0.45; 95% CI: 0.31-0.64; P < 0.001), cannula site bleeding (aOR: 0.72; 95% CI: 0.54-0.96; P = 0.03), and renal injury (aOR: 0.78; 95% CI: 0.62-0.98; P = 0.03).

conclusionsAmong adults receiving VA-ECMO, MU was associated with lower in-hospital mortality despite increased complications including hemolysis and cannulation site bleeding. Compared to pVAD, MU with IABP was associated with similar mortality and lower complication rates.

Indexed as

Extracorporeal Membrane OxygenationHeart-Assist DevicesAdultHeart VentriclesHumansIntra-Aortic Balloon PumpingMiddle AgedShock, Cardiogenicintra-aortic balloon pumppercutaneous ventricular assist devicesurvivalunloadingvenoarterial extracorporeal membrane oxygenation

Identifiers

PMID35361346
PMCPMC9187498
OpenAlexW4225851517

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.