Evidence map›Paper›PMID 28526044›Full record

SynthesisJournal of cardiothoracic surgery2017

Clinical outcomes meta-analysis: measuring subendocardial perfusion and efficacy of transmyocardial laser revascularization with nuclear imaging.

Jessika Iwanski, Shannon M Knapp, Ryan Avery, Isabel Oliva, Raymond K Wong, Raymond B Runyan, Zain Khalpey

Abstract readMeta-AnalysisReview
In one paragraph

Synthesis in Journal of cardiothoracic surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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.

Jessika IwanskiDepartment of Medical Pharmacology, University of Arizona College of Medicine, Tucson, AZ, USA.
Shannon M KnappBIO5 Institute, Statistics Consulting Lab, University of Arizona, Tucson, AZ, USA.
Ryan AveryDepartment of Nuclear Medicine, Banner University Medical Center, Medical Imaging, Tucson, AZ, USA.
Isabel OlivaDepartment of Nuclear Medicine, Banner University Medical Center, Medical Imaging, Tucson, AZ, USA.
Raymond K WongDepartment of Medical Pharmacology, University of Arizona College of Medicine, Tucson, AZ, USA.
Raymond B RunyanDepartment of Cellular and Molecular Medicine, University of Arizona College of Medicine, Tucson, AZ, USA.
Zain KhalpeyDepartment of Medical Pharmacology, University of Arizona College of Medicine, Tucson, AZ, USA. zkhalpey@surgery.arizona.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionRandomized and nonrandomized clinical trials have tried to assess whether or not TMR patients experience an increase in myocardial perfusion. However there have been inconsistencies reported in the literature due to the use of different nuclear imaging modalities to test this metric. The primary purpose of this meta-analysis was to determine whether SPECT, MUGA and PET scans demonstrate changes in myocardial perfusion between lased and non-lased subjects and whether laser type affects myocardial perfusion. The secondary purpose was to examine the overall effect of laser therapy on clinical outcomes including survival, hospital re-admission and angina reduction.

methodsSixteen studies were included in the primary endpoint analysis after excluding all other non-imaging TMR papers. Standardized mean difference was used as the effect size for all quantitative outcomes and log odds ratio was used as the effect size for all binary outcomes.

resultsStatistically significant improvements in myocardial perfusion were observed between control and treatment groups in myocardial perfusion at 6-month follow up using PET imaging with a porcine model. However non-significant differences were observed in patients at 3 and 12 months using SPECT, PET or MUGA scans. Both CO

conclusionIn order to properly assess myocardial perfusion in TMR subjects, subendocardial perfusion needs to be analyzed via nuclear imaging. PET scans can provide this level of sensitivity and should be utilized in future studies to monitor and detect perfusion changes in lased and non-lased subjects.

Indexed as

AnimalsCoronary Artery DiseaseHumansPerfusionPositron-Emission TomographyTransmyocardial Laser RevascularizationAnginaCoronary artery diseaseMUGAMyocardial perfusionNuclear imagingPETSPECTTMR

Identifiers

PMID28526044
PMCPMC5438520

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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.