Results 11 to 20 of about 81,405 (279)

Direct effects of glucose administration on heart rate, myocardial contraction, and duration of cardiac cycle in frog's heart

open access: diamondJournal of the Practice of Cardiovascular Sciences, 2018
Background: Recent and emerging evidences show that glucose ingestion causes prolonged Q-T interval and can trigger arrhythmia. Objective: The objective of this study is to examine the effects of administration of glucose solutions on the heart rate ...
B I Waziri, A Shahzad
doaj   +2 more sources

Left ventricle ejection fraction and strain derived by three-dimensional echocardiography are associated with exercise capacity in the patients with heart failure [PDF]

open access: yesVojnosanitetski Pregled, 2019
Background/Aim. Echocardiography represents the most commonly performed noninvasive cardiac imaging tests for the patients with heart failure (HF). The aim of this study was to assess the relationship between the exercise capacity parameters [peak oxygen
Pavlović-Kleut Milena   +2 more
doaj   +1 more source

Association between aortic stenosis severity and contractile reserve measured by two-dimensional strain under low-dose dobutamine testing [PDF]

open access: yesVojnosanitetski Pregled, 2013
Background/Aim. Early detection of left ventricle (LV) systolic dysfunction could be a clue for surgical treatment in patients with significant aortic stenosis (AS).
Banović Marko   +5 more
doaj   +1 more source

Effects of dispersed fibres in myocardial mechanics, Part II: active response

open access: yesMathematical Biosciences and Engineering, 2022
This work accompanies the first part of our study "effects of dispersed fibres in myocardial mechanics: Part I passive response" with a focus on myocardial active contraction.
Debao Guan   +5 more
doaj   +1 more source

The role of myocardial mechanical and QTc dispersion in detecting significant coronary artery disease

open access: yesJournal of Medicine in Scientific Research, 2022
Background Prolonged myocardial contraction and QT interval duration may be found in ischemic viable myocardium, yet it is unclear if noninvasive examination of regional nonhomogeneous myocardial mechanics and QT duration may detect patients with ...
Mohamed R Badran
doaj   +1 more source

SERCA2a ameliorates cardiomyocyte T-tubule remodeling via the calpain/JPH2 pathway to improve cardiac function in myocardial ischemia/reperfusion mice

open access: yesScientific Reports, 2021
Transverse-tubules (T-tubules) play pivotal roles in Ca2+-induced, Ca2+ release and excitation–contraction coupling in cardiomyocytes. The purpose of this study was to uncover mechanisms where sarco/endoplasmic reticulum Ca2+ ATPase (SERCA2a) improved ...
Shuai Wang   +9 more
doaj   +1 more source

Lipofundin® MCT/LCT 20% increase left ventricular systolic pressure in an rat heart model via increase of intracellular calcium level [PDF]

open access: yesKorean Journal of Anesthesiology, 2016
BackgroundLipid emulsions have been used to treat various drug toxicities and for total parenteral nutrition therapy. Their usefulness has also been confirmed in patients with local anesthetic-induced cardiac toxicity.
Jiyoung Park   +8 more
doaj   +1 more source

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