Evidence map›Paper›PMID 31830922›Full record

ArticleBMC cardiovascular disorders2019

Value of exercise stress electrocardiography for stratification of exercise capacity and left ventricular systolic and diastolic function on coronary slow flow: case-control study.

Yonghuai Wang, Jinyang Li, Shuang Liu, Lixin Mu, Guangyuan Li, Hang Yu, Jun Yang, Chunyan Ma

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In one paragraph

Article in BMC cardiovascular disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

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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

4 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Yonghuai WangDepartment of Cardiovascular Ultrasound, First Hospital of China Medical University, No. 155 Nanjingbei Street, Shenyang, 110001, Liaoning, China.
Jinyang LiDepartment of Cardiology, First Hospital of China Medical University, Shenyang, Liaoning, China.
Shuang LiuDepartment of Cardiovascular Ultrasound, First Hospital of China Medical University, No. 155 Nanjingbei Street, Shenyang, 110001, Liaoning, China.
Lixin MuDepartment of Cardiovascular Ultrasound, First Hospital of China Medical University, No. 155 Nanjingbei Street, Shenyang, 110001, Liaoning, China.
Guangyuan LiDepartment of Cardiovascular Ultrasound, First Hospital of China Medical University, No. 155 Nanjingbei Street, Shenyang, 110001, Liaoning, China.
Hang YuDepartment of Cardiology, First Hospital of China Medical University, Shenyang, Liaoning, China.
Jun YangDepartment of Cardiovascular Ultrasound, First Hospital of China Medical University, No. 155 Nanjingbei Street, Shenyang, 110001, Liaoning, China.
Chunyan MaDepartment of Cardiovascular Ultrasound, First Hospital of China Medical University, No. 155 Nanjingbei Street, Shenyang, 110001, Liaoning, China. cmu1h_mcy@126.com.ORCID 0000-0002-3327-736X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCoronary slow flow phenomenon (CSFP) is an angiographic entity characterized by delayed coronary opacification in absence of evident obstructive lesion in the epicardial coronary artery. However, whether patients with CSFP exhibit differing responses to exercise is still not known. This study aimed to evaluate results of exercise stress electrocardiography (ExECG) and left ventricular (LV) function during exercise, and study the value of ExECG for stratification of exercise capacity and LV function in patients with CSFP.

methodsThirty patients with CSFP and 24 controls were enrolled in the study. Diagnosis of CSFP was made by Thrombolysis in Myocardial Infarction frame count. ExECG and LV function measured by echocardiography at rest, during exercise and recovery phase were evaluated.

resultsNegative ExECG was found in 24 (80%) patients with CSFP. At rest, LV global longitudinal strain (GLS) decreased and mitral average E/e' increased in patients with CSFP compared with controls; however, there were no differences in these parameters between CSFP patients with negative ExECG and patients with positive ExECG. During exercise, CSFP patients with negative ExECG and controls had significantly increased LV GLS and decreased mitral average E/e', but CSFP patients with positive ExECG had significantly decreased LV GLS and increased mitral average E/e'.

conclusionsAbout 80% patients with CSFP exhibited negative ExECG. CSFP patients with negative ExECG exhibited improved LV function but CSFP patients with positive ExECG exhibited impaired LV function during exercise. ExECG may aid in the stratification of exercise capacity and LV function in patients with CSFP.

Indexed as

Echocardiography, DopplerEchocardiography, StressExercise TestExercise ToleranceVentricular Function, LeftAgedCase-Control StudiesDiastoleFemaleHumansMaleMiddle AgedNo-Reflow PhenomenonObserver VariationPredictive Value of TestsReproducibility of ResultsCoronary slow flow phenomenonEchocardiographyExercise stress electrocardiographyLeft ventricular function

Identifiers

PMID31830922
PMCPMC6909497

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