Results 1 to 10 of about 83,934 (252)

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

Vojnosanitetski 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, Vujisić-Tešić Bosiljka, Kujačić Vuk, Obradović Slobodan, Crkvenac Zdenko, Ostojić Miodrag   +5 more
doaj   +1 more source

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

Journal 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

Scientific 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, You Zhou, Yuanyuan Luo, Rongsheng Kan, Jingwen Chen, Haochen Xuan, Chaofan Wang, Junhong Chen, Tongda Xu, Dongye Li   +9 more
doaj   +1 more source

The impact of myocardial compressibility on organ-level simulations of the normal and infarcted heart

Scientific Reports, 2021
Myocardial infarction (MI) rapidly impairs cardiac contractile function and instigates maladaptive remodeling leading to heart failure. Patient-specific models are a maturing technology for developing and determining therapeutic modalities for MI that ...
Hao Liu, João S. Soares, John Walmsley, David S. Li, Samarth Raut, Reza Avazmohammadi, Paul Iaizzo, Mark Palmer, Joseph H. Gorman, Robert C. Gorman, Michael S. Sacks   +10 more
doaj   +1 more source

Cell-free cryopreserved biological agents for cardiac protection in autoimmune myocarditis: A morphofunctional animal model study [PDF]

Scripta Medica
Background/Aim: Autoimmune myocarditis (AIM) is a condition characterised by inflammation of the heart muscle, which can lead to heart failure. The development of effective treatments is crucial for improving cardiac function and recovery.
Hladkykh Fedir V., Liadova Tetiana I., Komorovsky Roman R.   +2 more
doaj   +1 more source

Stunned myocardium [PDF]

Vojnosanitetski Pregled, 2005
Background. Stunned myocardium is a state of delayed recovery of regional contractility after a transient period of ischemia followed by reperfusion. Case report.
Ristić Anđelka, Damjanović Milorad, Baškot Branislav, Matunović Radomir   +3 more
doaj   +1 more source

Studies on myocardial contraction. Right ventricular contraction and local myocardial contraction measured by the transcatheter method.

The Keio journal of medicine, 1969
The relations between the right ventricular contraction and the local myo-cardial shortening measured by means of the transcatheter method were dis-cussed. The local tension-velocity-length relationships were also shown.The authors wish to express their sincere gratitude to Prof. H. Sasamoto for his generous guidance and instruction in this study.
TOMODA, HARUO, HANDA, SHUNNOSUKE, OGINO, TAKANORI, FUKUDA, MASAKATSU, HIROSE, HAJIME, SEKIMOTO, TOSHIO, KATAYAMA, KAZUHIKO   +6 more
openaire   +4 more sources

A comparative study of embedded and anesthetized zebrafish in vivo on myocardiac calcium oscillation and heart muscle contraction

Frontiers in Pharmacology, 2010
The zebrafish (Danio rerio) has been used as a model for studying vertebrate development in the cardiovascular system. In order to monitor heart contraction and cytosolic calcium oscillations, fish were either embedded in methylcellulose or anesthetized
Brian eMuntean, Christine Horvat, James Behler, Wissam AbouAlaiwi, Andromeda Nauli, Frederick Williams, Surya Nauli   +6 more
doaj   +1 more source

Effects of Rosuvastatin and Pitavastatin on Ischemia-Induced Myocardial Stunning in Dogs

Journal of Pharmacological Sciences, 2008
Incomplete recovery of myocardial contraction after reperfusion following brief ischemia is called the “stunning phenomenon” in an animal experiment.
Kumi Satoh, Akira Takaguri, Mai Itagaki, Seiichiro Kano, Kazuo Ichihara   +4 more
doaj   +1 more source

Effect of changes in contractility on the index of myocardial performance in the dysfunctional left ventricle

Cardiovascular Ultrasound, 2006
Background The index of myocardial performance has prognostic power in patients with cardiomyopathy and following myocardial infarction. As the index of myocardial performance has been shown to be preload and afterload dependent, the effect of altering ...
Lavine Steven J
doaj   +1 more source