Transthoracic Coronary Flow Data at Rest Predict High-Risk Stress Tests

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16370%2F18%3A43877065" target="_blank" >RIV/62157124:16370/18:43877065 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14110/18:00104143 RIV/00159816:_____/18:00068744

Výsledek na webu

<a href="http://dx.doi.org/10.1177/0284185117733143" target="_blank" >http://dx.doi.org/10.1177/0284185117733143</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/0284185117733143" target="_blank" >10.1177/0284185117733143</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Transthoracic Coronary Flow Data at Rest Predict High-Risk Stress Tests

Popis výsledku v původním jazyce

Background: Several recent studies have reported the opportunity to diagnose significant narrowing of the coronary arteries without stress testing using local flow acceleration. Purpose: To define how often patients with increased coronary flow velocities at rest (&gt;= 0.70 m/s) have a positive exercise echocardiography test. Material and Methods: A total of 150 patients scheduled for exercise echocardiography were studied using transthoracic Doppler echocardiography in order to assess coronary artery flow velocity before exercise. Pulsed wave Doppler registered blood flow velocity placed on the color signal. The maximal diastolic velocity of coronary flow was measured. Results: Of participants, 16% had a velocity of more than 0.70 m/s in the left main/proximal left anterior/proximal left circumflex arteries (LM/pLAD). A significant correlation was observed between the value of the maximal velocity in LM/pLAD and the ejection fraction at the peak of exercise (r approximate to -0.39, P &lt; 0.0001); between the value of the maximal velocity in LM/pLAD and index of wall motion abnormalities (IWMA) at the peak of exercise (r approximate to 0.44, P &lt; 0.0001); and between the value of the maximal velocity in LM/pLAD and dIWMA (r approximate to 0.41, P &lt; 0.0001). Afterwards, severe ischemia in stress echocardiography tests was observed in this group. The average IWMA of these tests was found to be 2.3. Sixty-two angiograms were available for comparison with Doppler data. Conclusion: There is a significant correlation between the value of the maximal velocity in LM/pLAD/pLCx at rest and the severity of wall motion abnormalities during exercise tests.

Název v anglickém jazyce

Transthoracic Coronary Flow Data at Rest Predict High-Risk Stress Tests

Popis výsledku anglicky

Background: Several recent studies have reported the opportunity to diagnose significant narrowing of the coronary arteries without stress testing using local flow acceleration. Purpose: To define how often patients with increased coronary flow velocities at rest (&gt;= 0.70 m/s) have a positive exercise echocardiography test. Material and Methods: A total of 150 patients scheduled for exercise echocardiography were studied using transthoracic Doppler echocardiography in order to assess coronary artery flow velocity before exercise. Pulsed wave Doppler registered blood flow velocity placed on the color signal. The maximal diastolic velocity of coronary flow was measured. Results: Of participants, 16% had a velocity of more than 0.70 m/s in the left main/proximal left anterior/proximal left circumflex arteries (LM/pLAD). A significant correlation was observed between the value of the maximal velocity in LM/pLAD and the ejection fraction at the peak of exercise (r approximate to -0.39, P &lt; 0.0001); between the value of the maximal velocity in LM/pLAD and index of wall motion abnormalities (IWMA) at the peak of exercise (r approximate to 0.44, P &lt; 0.0001); and between the value of the maximal velocity in LM/pLAD and dIWMA (r approximate to 0.41, P &lt; 0.0001). Afterwards, severe ischemia in stress echocardiography tests was observed in this group. The average IWMA of these tests was found to be 2.3. Sixty-two angiograms were available for comparison with Doppler data. Conclusion: There is a significant correlation between the value of the maximal velocity in LM/pLAD/pLCx at rest and the severity of wall motion abnormalities during exercise tests.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30107 - Medicinal chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

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

—

Svazek periodika

59

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

664-671

Kód UT WoS článku

000432868300007

EID výsledku v databázi Scopus

2-s2.0-85046023570