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(păl'pĭtā`shən), abnormal heartbeat that is often associated with a sensation of fluttering or thumping. The normal heartbeat is not noticeable to the individual. Palpitation may be a symptom of organic heart disease or of other body disorders such as an overactive thyroid gland or anemia. In healthy persons palpitation can be brought on by undue exertion, shock, excitement, or stimulants.



a heart action that produces a disagreeable awareness in those suffering from various diseases, including diseases of the cardiovascular, nervous, and endocrine systems, as well as in healthy individuals under considerable physical and emotional strain. Palpitation is primarily associated with an increase in the number of heart contractions per minute, for example, with overstrain or paroxysmal tachycardia. It is also associated with rhythmic disorders of contractility, including extrasystole and atrial fibrillation. Therapeutic measures and preventive treatment are determined by the causes of palpitation.

References in periodicals archive ?
The previous palpitations were sporadic (a few times per year) but in retrospect increasing over time, and often associated with straining at stool or otherwise being in a position that put pressure on the abdomen.
Palpitations may seem alarming but in most cases are harmless and aren't a sign of a heart problem.
McColgan, who'll run at the Sainsbury's Glasgow Grand Prix at Hampden, said: "The small palpitations had never affected me but the incident in Qatar was scary because I had experienced nothing of that magnitude before.
The extra adrenaline released when he gets anxious could also trigger the palpitations.
Bruce Ruck, director of drug information and professional education for the New Jersey Poison Information and Education System (NJPIES) at Rutgers New Jersey Medical School in Newark, said that kids also might have trouble falling asleep or experience tremors, anxiety, agitation, heart palpitations, nausea or vomiting.
Rien que la correction de ces parametres corrige les palpitations .
1, 2013 /PRNewswire-USNewswire/ -- It should come as no surprise that doctors at Saint Luke's Mid America Heart Institute see a lot of female patients with heart flutters, heart skips, and heart palpitations .
Past medical history was unremarkable except for frequent palpitations and lasting for several hours approximately every month for the last 2 years.
My heart palpitations, called PVCs, come on with the slightest activity.