The heart normally beats at a rate of about 60 to 100 beats per minute at rest. A rate faster than 100 beats a minute in an adult is called tachycardia. Most people experience transient rapid heartbeats, called sinus tachycardia, as a normal response to excitement,
The two main types of tachycardia are abnormal supraventricular tachycardias (which originate in the upper...
What we call normal rhythm is stimulated by a group of cells in the upper chamber of our heart called the atrium. This group of cells is in... Read more »
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Source: ADAM Encyclopedia
Multifocal atrial tachycardia is a rapid heart rate that occurs when too many signals (electrical impulses) are sent from the upper heart to the... Read more »
Source: ADAM Encyclopedia
Paroxysmal supraventricular tachycardia (PSVT) is an occasional rapid heart rate. "Paroxysmal" means from time to time. Alternative NamesPSVT;... Read more »
Source: ADAM Encyclopedia
Wide-complex tachycardia; V tach; Tachycardia - ventricularPreventionIn some cases, the disorder is not preventable. In other cases, it can be... Read more »
(Ivanhoe Newswire) -- Some stuffy nosed mice may help doctors treat humans with sinus conditions. An estimated 31 million Americans suffer with... Read more »
Source: ADAM Encyclopedia
Sick sinus syndrome is a collection of heart rhythm disorders that include:Sinus bradycardia -- slow heart rates from the natural pacemaker of the... Read more »