Parasystole
"Parasystole" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
A cardiac arrhythmia that is caused by interaction of two independently initiated cardiac impulses of different rates from two separate foci. Generally one focus is the SINOATRIAL NODE, the normal pacemaker. The ectopic focus is usually in the HEART VENTRICLE but can be in the HEART ATRIUM or the ATRIOVENTRICULAR NODE. Modulation of the parasystolic rhythm by the sinus rhythm depends on the completeness of entrance block surrounding the parasystolic focus.
| Descriptor ID |
D017574
|
| MeSH Number(s) |
C14.280.067.672 C23.550.073.670
|
| Concept/Terms |
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Below are MeSH descriptors whose meaning is more general than "Parasystole".
Below are MeSH descriptors whose meaning is more specific than "Parasystole".
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Below are the most recent publications written about "Parasystole" by people in Profiles.