Impact of arterial load and loading sequence on left ventricular tissue velocities in humans
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F07%3A00000812" target="_blank" >RIV/00023001:_____/07:00000812 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Impact of arterial load and loading sequence on left ventricular tissue velocities in humans
Original language description
OBJECTIVES: The aim of this study was to examine the relationship between individual components of left ventricular (LV) afterload and tissue Doppler echocardiography (TDE) velocities in humans. BACKGROUND: Acute increases in afterload slow diastolic relaxation as assessed invasively, yet little is known about chronic effects of load and loading sequence on LV TDE velocities. METHODS: Forty-eight subjects underwent echo Doppler and color-coded TDE with comprehensive noninvasive vascular assessment. Arterial afterload was measured by effective arterial elastance (Ea) and systemic vascular resistance index (SVRI), and loading sequence was quantified by early- (carotid characteristic impedance [Zc]) and late-systolic loads (augmentation index [cAI]; latepressure-time integral [PTI3]). Vascular stiffness was measured by carotid-femoral pulse wave velocity (PWV) and total arterial compliance. RESULTS: Early-diastolic velocity (E') varied inversely with Zc, SVRI, Ea, and PWV (r = -0.4 to
Czech name
Efekt sekvence zatížení na na tkáňové rychlosti myokardu levé komory
Czech description
Cílem práce bylo studium vztahu mezi profilem tlakové zátěže ve velkých tepnách a ťkáňovými rychlostmi myokardu, měřené pomocí tkáňově dopplerovské echokardiografie v oblasti mitrálního anulu. Práce ukázala, že diastolické a systolické tkáňové rychlostijsou inverzně proporcionální afterloadu a že zatížení v poslední části systoly má největší efekt na E´rychlost.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
FA - Cardiovascular diseases including cardio-surgery
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of the American College of Cardiology
ISSN
0735-1097
e-ISSN
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Volume of the periodical
50
Issue of the periodical within the volume
16
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
1570-1577
UT code for WoS article
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EID of the result in the Scopus database
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