Taber's Medical Dictionary
extrasystole
To view the entire topic, please sign in or purchase a subscription.
Nursing Central is the award-winning, complete mobile solution for nurses and students. Look up information on diseases, tests, and procedures; then consult the database with 5,000+ drugs or refer to 65,000+ dictionary terms. Explore these free sample topics:
-- The first section of this topic is shown below --
(ĕks″tră-sĭs′tō-lē )
[″ + Gr. systole, contraction]
Premature contraction of the heart. It may occur in the presence or absence of organic heart disease. It may be of reflex origin or may be triggered by stimulants, e.g., caffeine, cocaine, or theophylline, hypoxia, psychological stress, electrolyte abnormalities, thyroid disorders, or myocardial infarction.
-- To view the remaining sections of this topic, please sign in or purchase a subscription --