Evidence map›Paper›PMID 27179797›Full record

ArticleEuropean journal of applied physiology2016

Impact of aortic root size on left ventricular afterload and stroke volume.

Anders Sahlén, Nadira Hamid, Mohammed Rizwan Amanullah, Jiang Ming Fam, Khung Keong Yeo, Yee How Lau, Carolyn S P Lam, Zee Pin Ding

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Article in European journal of applied physiology, 2016. 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

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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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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.

Anders SahlénNational Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore. anders.sahlen@ki.se.
Nadira HamidNational Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore.
Mohammed Rizwan AmanullahNational Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore.
Jiang Ming FamNational Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore.
Khung Keong YeoNational Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore.
Yee How LauNational Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore.
Carolyn S P LamNational Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore.
Zee Pin DingNational Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe left ventricle (LV) ejects blood into the proximal aorta. Age and hypertension are associated with stiffening and dilation of the aortic root, typically viewed as indicative of adverse remodeling. Based on analytical considerations, we hypothesized that a larger aortic root should be associated with lower global afterload (effective arterial elastance, EA) and larger stroke volume (SV). Moreover, as antihypertensive drugs differ in their effect on central blood pressure, we examined the role of antihypertensive drugs for the relation between aortic root size and afterload.

methodsWe studied a large group of patients (n = 1250; 61 ± 12 years; 78 % males; 64 % hypertensives) from a single-center registry with known or suspected coronary artery disease. Aortic root size was measured by echocardiography as the diameter of the tubular portion of the ascending aorta. LV outflow tract Doppler was used to record SV.

resultsIn the population as a whole, after adjusting for key covariates in separate regression models, aortic root size was an independent determinant of both SV and EA. This association was found to be heterogeneous and stronger in patients taking a calcium channel blocker (CCB; 10.6 % of entire population; aortic root size accounted for 8 % of the explained variance of EA).

conclusionLarger aortic root size is an independent determinant of EA and SV. This association was heterogeneous and stronger in patients on CCB therapy.

Indexed as

AortaArterial PressureComputer SimulationEchocardiographyFemaleHumansMaleMiddle AgedModels, CardiovascularOrgan SizeReproducibility of ResultsSensitivity and SpecificityStroke VolumeVentricular Function, LeftVentricular PressureAfterloadAortaCalcium antagonistStroke volume

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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.