Relationship between QRS measurements and left ventricular morphology and function in asymptomatic individuals.
Background and Aim: QRS amplitude and duration are associated with increased left ventricular (LV) volume, mass and dysfunction. However, the diagnostic concordance between QRS measurements and LV morphology and function, as shown by Doppler echocardiography, is not well established. We investigated...
| Publicado en: | Echocardiography Vol. 35; no. 3; pp. 301 - 308 |
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| Autores principales: | , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
Mar2018
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=128313138&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 128313138 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 07422822 GSE jtl: Echocardiography issn: 07422822 maglogo: Y pubinfo: dt: Mar2018 vid: 35 iid: 3 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 128313138 128313138 128313138 10.1111/echo.13782 128313138 ppf: 301 ppct: 7 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Relationship between QRS measurements and left ventricular morphology and function in asymptomatic individuals. aug: au: Vancheri, Federico Vancheri, Sergio Henein, Michael affil: Internal Medicine, Hospital S.Elia, Caltanissetta, Italy sug: subj: QRS Complex Ventricular Dysfunction, Left Human Male Female Adult Middle Age Aged Echocardiography, Doppler Italy Descriptive Statistics Data Analysis Software Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Male Female ab: Background and Aim: QRS amplitude and duration are associated with increased left ventricular (LV) volume, mass and dysfunction. However, the diagnostic concordance between QRS measurements and LV morphology and function, as shown by Doppler echocardiography, is not well established. We investigated the relationships of QRS duration and amplitude with echocardiographic measurements of LV morphology and systolic and diastolic function in normal individuals. Methods: Individuals without signs or symptoms of coronary artery disease or heart failure, who underwent clinical examination as a part of a cross‐sectional survey for the prevalence of coronary risk factors, randomly selected from the population list in Caltanissetta, Italy, were included in the study. QRS duration and amplitude were automatically measured using inbuilt software. LV ejection and filling patterns were studied using Doppler echocardiography. Results: We studied 184 individuals (96 men and 88 women), mean age 55.9 (11.3). QRS duration increased by 5.4 ms for every 100 g increase in LV mass, and by 4.6 ms for each 10 mm increase in LV end‐diastolic diameter. The amplitude increased by 0.8 mm for every 100 g increase in LV mass. There was no relationship with LV dimensions. A nonlinear correlation was found between QRS amplitude and indexes of global dyssynchrony. The time‐voltage QRS area correlated with LV mass, dimensions and indexes of dyssynchrony. There was no relationship between QRS measurements and ejection fraction. Conclusions: QRS prolongation and increase in amplitude are strongly influenced by LV increased mass and volume, as well as by dyssynchrony, independently of ejection fraction. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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