Evidence map›Paper›PMID 31537554›Full record

ArticleBMJ open2019

Association of platelet-to-lymphocyte count ratio with myocardial reperfusion and major adverse events in patients with acute myocardial infarction: a two-centre retrospective cohort study.

Ailifeire Maimaiti, Yang Li, Yong-Tao Wang, Xiang Yang, Xiao-Mei Li, Yi-Ning Yang, Yi-Tong Ma

Abstract readMulticenter Study
In one paragraph

Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
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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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Ailifeire MaimaitiDepartment of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
Yang LiDepartment of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
Yong-Tao WangDepartment of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
Xiang YangDepartment of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
Xiao-Mei LiDepartment of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
Yi-Ning YangDepartment of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
Yi-Tong MaDepartment of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China myt-xj@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveInsufficient myocardial reperfusion for patients with acute myocardial infarction (AMI) during primary percutaneous coronary intervention (PPCI) has a great influence on prognosis. The aim of this study was to investigate the association of the platelet-to-lymphocyte ratio (PLR) with myocardial reperfusion and in-hospital major adverse cardiac events (MACEs) in patients with AMI undergoing PPCI.

designRetrospective cohort study.

settingPatients and researchers from two tertiary hospitals.

participantsA total of 445 consecutive AMI patients who underwent PPCI between January 2015 and December 2017 were enrolled. Patients were divided into two groups based on the PLR value: patients with PLR values in the third tertile were defined as the high-PLR group (n=150), and those in the lower two tertiles were defined as the low-PLR group (n=295). Explicit criteria for inclusion and exclusion were applied.

interventionsNo interventions. PRIMARY AND SECONDARY OUTCOME MEASURES: Primary outcome measures were defined as cardiovascular death, reinfarction or target vessel revascularisation. Secondary outcome measures were defined as stroke, non-lethal myocardial infarction, ventricular tachycardia/ventricular fibrillation and in-hospital mortality.

resultsThe high-PLR group had insufficient myocardial perfusion (23% vs 13%, p=0.003), greater postprocedural thrombolysis in myocardial infarction flow grade (0-2) (17% vs 10%, p=0.037), greater myocardial blush grade (0-1) (11% vs 4%, p=0.007) and higher B-type natriuretic peptide (BNP) (614±600 vs 316±429, p<0.001) compared with the low-PLR group. Multivariate logistic regression analysis indicated that the independent risk factors for impaired myocardial perfusion were high PLR (OR 1.256, 95% CI 1.003 to 1.579, p=0.056) and high BNP (OR 1.328, 95% CI 1.056 to 1.670, p=0.015). The high-PLR group had significantly more MACEs (43% vs 32%, p=0.029).

conclusionsThis study suggested that high PLR and BNP were independent risk factors for insufficient myocardial reperfusion in patients with AMI. Higher PLR was related to advanced heart failure and in-hospital MACEs in patients with AMI undergoing PPCI.

Indexed as

Myocardial ReperfusionPercutaneous Coronary InterventionAgedChinaFemaleHospital MortalityHumansLogistic ModelsLymphocyte CountMaleMiddle AgedMultivariate AnalysisMyocardial InfarctionNatriuretic Peptide, BrainPlatelet CountPrognosisNatriuretic Peptide, Brainacute myocardial infarctionAMIinsufficient myocardial perfusionPlatelet to lymphocyte ratioPLR

Identifiers

PMID31537554
PMCPMC6756339

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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.