Evidence map›Paper›PMID 20014205›Full record

ArticleClinical cardiology2009

Single-photon emission computed tomography myocardial perfusion imaging in the diagnosis of left main disease.

Luis Afonso, Nitin Mahajan

Open access · bronzeAbstract read
In one paragraph

Article in Clinical cardiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.5field-weighted citation impact, top 31% 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

5 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Article
  3. Left main coronary artery disease: A review of the spectrum of noninvasive diagnostic modalities.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2016
    Review
  4. Article
  5. 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

2 authors at 1 institution in 1 country.

Luis AfonsoDivision of Cardiology and Department of Internal Medicine, DetroitMedical Center, Wayne State University School of Medicine, Detroit, Michigan 48201, USA. lafonso@med.wayne.edu
Nitin Mahajan
Wayne State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLeft main disease (LMD), defined as > or = 50% lesion stenosis, occurs in 3% to 5% of patients undergoing catheterization. Limited data on the value of single-photon emission computed tomography (SPECT) imaging for diagnosis of LMD exists. HYPOTHESIS: This study sought to evaluate the diagnostic accuracy of SPECT imaging in the diagnosis of LMD.

methodsA total of 74 consecutive patients with LMD, identified from our catheterization lab database (January 2003-December 2007) with gated exercise (15 patients) or adenosine (59 patients), thallium 201, or Tc-99m SPECT imaging within 6 months of index angiography were included. Group 1 (Gp 1) included 33 patients with isolated LMD. Group 2 (Gp 2) consisted of 41 patients with LMD and 1-vessel disease (6); LMD and 2-vessel disease (24); and LMD and 3-vessel disease (11).

resultsReversible perfusion defects (PD) were absent in 6 (18%) of Gp 1 and 8 (20%) of Gp 2 patients. Among Gp 1 patients, PD in 1-vessel, 2-vessel, 3-vessel distribution were seen in 20 (61%), 5 (15%), and 2 (6%) patients respectively. In comparison, PD in 1-vessel, 2-vessel, 3-vessel distribution were observed in 20 (49%), 12 (29%), and 1 (2%) of Gp 2 patients respectively. Left main (LM) pattern was noted in 6 patients (Gp 1: 2, Gp 2: 4). Transient ischemic dilatation (TID) was encountered in 34 patients (Gp 1: 17, Gp 2: 17) and in 4 patients with normal perfusion scans.

conclusionsThese data represent the largest analysis of patients with "isolated" LMD. Approximately 19% of patients with LMD have no reversible PD on SPECT. While LM pattern is rare, 1-vessel distribution PD and TID represent the most frequent SPECT abnormalities.

Indexed as

Tomography, Emission-Computed, Single-PhotonAdenosineCoronary CirculationCoronary StenosisCoronary VesselsExercise TestFemaleHumansMaleMiddle AgedMyocardial Perfusion ImagingRadiopharmaceuticalsRetrospective StudiesTechnetium Tc 99m SestamibiThallium RadioisotopesVasodilator AgentsAdenosineRadiopharmaceuticalsTechnetium Tc 99m SestamibiThallium RadioisotopesVasodilator Agents

Identifiers

PMID20014205
PMCPMC6653516
OpenAlexW1494245784

What OpenQuestion holds

Textmetadata
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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.