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Projects / Programmes source: ARIS

Tonic and phasic components of heart action

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Research activity

Code Science Field Subfield
3.06.00  Medical sciences  Cardiovascular system   

Code Science Field
B470  Biomedical sciences  Physiology 
B530  Biomedical sciences  Cardiovascular system 
Keywords
CONTRACTILITY, MYOCARDIUM, ECONOMY
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Researchers (2)
no. Code Name and surname Research area Role Period No. of publications
1.  08223  Daniel Peterec  Cardiovascular system  Researcher  1998  30 
2.  02092  Vlasta Škof  Cardiovascular system  Researcher  1998  1 
Organisations (1)
no. Code Research organisation City Registration number No. of publications
1.  0381  University of Ljubljana, Faculty of Medicine  Ljubljana  1627066  48,255 
Abstract
Right at the beginning of 1998, the monography ?Analyis of Cardiovascular Dynamics? appeared (Drzewiecki and Li, 1998). In this monography, the article about the shape of the left ventricle was printed (Juznic et al., 1998). The cooperation with our laboratory of cardiovascular dynamics is well reflected in this monography. The reactivity of different myocardial fibres came to the appearance. The aim of the current project is to investigate the mechanism of how the circular and longitudinal myocardial fibres enable the most economical pump function at different heart rates. At a low heart rate the circumferential strong fibres cause a narrowing of the small diameter of the LV; at a higher heart rate the spiral fibres come into action. We can call the slowly reacting fibres the tonic component, the quickly reacting the phasic component of heart action. It is expected that 3-D contrast echo could perhaps distinguish the tonic and phasic fibres.
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