A novel method for left anterior coronary artery flow velocity assessment by transthoracic echocardiography at the peak of a supine bicycle test

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14110%2F16%3A00124648" target="_blank" >RIV/00216224:14110/16:00124648 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.sagepub.com/doi/10.1177/0284185115617350" target="_blank" >https://journals.sagepub.com/doi/10.1177/0284185115617350</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/0284185115617350" target="_blank" >10.1177/0284185115617350</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A novel method for left anterior coronary artery flow velocity assessment by transthoracic echocardiography at the peak of a supine bicycle test

Popis výsledku v původním jazyce

Background Assessment of coronary flow is only performed during pharmacological tests. Supine bicycle tests permit the visualization of coronary flow assessments during exercise. Purpose To assess the parameters of coronary flow in the left anterior descending artery (LAD) during exercise, which could be a sign of significant LAD narrowing. Material and Methods A total of 253 patients were enrolled: Group 1, 186 non-selective participants before undergoing a coronary angiography; and Group 2, 67 controls without coronary artery disease (CAD). All the patients performed a supine bicycle echocardiography test. Coronary flow velocities and coronary flow velocity reserve (CFVR) were measured at the mid-segment of the LAD during exercise. Patients in Group 1 underwent a coronary angiography. Results In comparison with participants without significant LAD stenosis, patients with LAD lesions had a lower V (1621 vs. 27 +/- 20cm/s, P&lt;0.04) and a lower CFVR (1.5 +/- 0.8 vs. 2.0 +/- 0.6, P&lt;0.004). In comparison with patients without significant proximal LAD stenosis, the patients with proximal LAD lesions had a lower flow velocity at the peak of exercise (49 +/- 32 vs. 61 +/- 19cm/s, P&lt;0.02), a lower V (13 +/- 19 vs. 26 +/- 22cm/s, P&lt;0.004), and a lower CFVR (1.4 +/- 0.6 vs. 1.9 +/- 0.7, P&lt;0.0001). In comparison with the control group, the patients with LAD stenosis had a lower flow velocity at the peak of exercise, a lower V, and a lower CFVR. Conclusion Non-invasive CFVR measurement in the LAD could provide valuable additional information to a conventional echocardiography exercise test. In routine clinical practice, CFVR is sufficient for a diagnosis of severe stenosis.

Název v anglickém jazyce

A novel method for left anterior coronary artery flow velocity assessment by transthoracic echocardiography at the peak of a supine bicycle test

Popis výsledku anglicky

Background Assessment of coronary flow is only performed during pharmacological tests. Supine bicycle tests permit the visualization of coronary flow assessments during exercise. Purpose To assess the parameters of coronary flow in the left anterior descending artery (LAD) during exercise, which could be a sign of significant LAD narrowing. Material and Methods A total of 253 patients were enrolled: Group 1, 186 non-selective participants before undergoing a coronary angiography; and Group 2, 67 controls without coronary artery disease (CAD). All the patients performed a supine bicycle echocardiography test. Coronary flow velocities and coronary flow velocity reserve (CFVR) were measured at the mid-segment of the LAD during exercise. Patients in Group 1 underwent a coronary angiography. Results In comparison with participants without significant LAD stenosis, patients with LAD lesions had a lower V (1621 vs. 27 +/- 20cm/s, P&lt;0.04) and a lower CFVR (1.5 +/- 0.8 vs. 2.0 +/- 0.6, P&lt;0.004). In comparison with patients without significant proximal LAD stenosis, the patients with proximal LAD lesions had a lower flow velocity at the peak of exercise (49 +/- 32 vs. 61 +/- 19cm/s, P&lt;0.02), a lower V (13 +/- 19 vs. 26 +/- 22cm/s, P&lt;0.004), and a lower CFVR (1.4 +/- 0.6 vs. 1.9 +/- 0.7, P&lt;0.0001). In comparison with the control group, the patients with LAD stenosis had a lower flow velocity at the peak of exercise, a lower V, and a lower CFVR. Conclusion Non-invasive CFVR measurement in the LAD could provide valuable additional information to a conventional echocardiography exercise test. In routine clinical practice, CFVR is sufficient for a diagnosis of severe stenosis.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30224 - Radiology, nuclear medicine and medical imaging

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Acta Radiologica

ISSN

0284-1851

e-ISSN

1600-0455

Svazek periodika

57

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

1056-1065

Kód UT WoS článku

000383191700007

EID výsledku v databázi Scopus

2-s2.0-84985894851