Evidence map›Paper›PMID 30554567›Full record

Observational studyJournal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance2018

Cardiovascular magnetic resonance left ventricular strain in end-stage renal disease patients after kidney transplantation.

Inna Y Gong, Bandar Al-Amro, G V Ramesh Prasad, Philip W Connelly, Rachel M Wald, Ron Wald, Djeven P Deva, Howard Leong-Poi, Michelle M Nash, Weiqiu Yuan and 5 more

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Review
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  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
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  13. Article
  14. Myocardial strain assessment using cardiovascular magnetic resonance imaging in recipients of implantable cardioverter defibrillators.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2021
    Article
  15. Article
  16. Article
  17. Cardiac MRI assessment of the right ventricle pre-and post-kidney transplant.The international journal of cardiovascular imaging · 2021
    Article
  18. Article
  19. Journal of Cardiovascular Magnetic Resonance: 2017/2018 in review.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2019
    Review
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

15 authors at 4 institutions in 2 countries.

Inna Y GongUniversity of Toronto, Toronto, Canada.
Bandar Al-AmroTerrence Donnelly Heart Centre, St. Michael's Hospital, Toronto, Canada.
G V Ramesh PrasadUniversity of Toronto, Toronto, Canada.
Philip W ConnellyUniversity of Toronto, Toronto, Canada.
Rachel M WaldUniversity of Toronto, Toronto, Canada.
Ron WaldUniversity of Toronto, Toronto, Canada.
Djeven P DevaUniversity of Toronto, Toronto, Canada.
Howard Leong-PoiUniversity of Toronto, Toronto, Canada.
Michelle M NashDivision of Nephrology, St Michael's Hospital, Toronto, ON, Canada.
Weiqiu YuanDivision of Nephrology, St Michael's Hospital, Toronto, ON, Canada.
Lakshman GunaratnamDivision of Nephrology, Department of Medicine, London Health Sciences Centre, Schulich School of Medicine and Dentistry, Western University, London, Canada.
S Joseph KimUniversity of Toronto, Toronto, Canada.
Charmaine E LokDepartment of Medicine, University Health Network-Toronto General Hospital, Toronto, Canada.
Kim A ConnellyUniversity of Toronto, Toronto, Canada.
Andrew T YanUniversity of Toronto, Toronto, Canada. yana@smh.ca.ORCID 0000-0002-2063-7485
St. Michael's Hospital · CAUniversity Health Network · CAUniversity of Toronto · CAWestern University · CA

Funding

CIHR
6 · The paper itself

Abstract

backgroundCardiovascular disease is a significant cause of morbidity and mortality in patients with end-stage renal disease (ESRD) and kidney transplant (KT) patients. Compared with left ventricular (LV) ejection fraction (LVEF), LV strain has emerged as an important marker of LV function as it is less load dependent. We sought to evaluate changes in LV strain using cardiovascular magnetic resonance imaging (CMR) in ESRD patients who received KT, to determine whether KT may improve LV function.

methodsWe conducted a prospective multi-centre longitudinal study of 79 ESRD patients (40 on dialysis, 39 underwent KT). CMR was performed at baseline and at 12 months after KT.

resultsAmong 79 participants (mean age 55 years; 30% women), KT patients had significant improvement in global circumferential strain (GCS) (p = 0.007) and global radial strain (GRS) (p = 0.003), but a decline in global longitudinal strain (GLS) over 12 months (p = 0.026), while no significant change in any LV strain was observed in the ongoing dialysis group. For KT patients, the improvement in LV strain paralleled improvement in LVEF (57.4 ± 6.4% at baseline, 60.6% ± 6.9% at 12 months; p = 0.001). For entire cohort, over 12 months, change in LVEF was significantly correlated with change in GCS (Spearman's r = - 0.42, p < 0.001), GRS (Spearman's r = 0.64, p < 0.001), and GLS (Spearman's r = - 0.34, p = 0.002). Improvements in GCS and GRS over 12 months were significantly correlated with reductions in LV end-diastolic volume index and LV end-systolic volume index (all p < 0.05), but not with change in blood pressure (all p > 0.10).

conclusionsCompared with continuation of dialysis, KT was associated with significant improvements in LV strain metrics of GCS and GRS after 12 months, which did not correlate with blood pressure change. This supports the notion that KT has favorable effects on LV function beyond volume and blood pessure control. Larger studies with longer follow-up are needed to confirm these findings.

Indexed as

Kidney TransplantationMagnetic Resonance ImagingMyocardial ContractionVentricular Function, LeftAdultAgedBiomechanical PhenomenaFemaleHumansKidney Failure, ChronicLongitudinal StudiesMaleMiddle AgedOntarioPredictive Value of TestsProspective StudiesCardiovascular magnetic resonanceKidney transplantLeft ventricular ejection fractionLeft ventricular peak systolic strainLeft ventricular volume

Identifiers

PMID30554567
PMCPMC6296102
OpenAlexW2903041554

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.