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Some arrhythmias do not cause symptoms and are not associated with increased mortality. However, some asymptomatic arrhythmias are associated with adverse events. Examples include a higher risk of blood clotting within the heart and a higher risk of insufficient blood being transported to the heart because of a weak heartbeat.
Cardiac arrhythmia, also known as "cardiac dysrhythmia" or "irregular heartbeat", is a group of conditions in which the heartbeat is too fast, too slow, or irregular in its rhythm. A heart rate that is too fast – above 100 beats per minute in adults – is called tachycardia.
Arrhythmia. An arrhythmia is an irregular heartbeat that occurs due to a problem with the electrical activity of your heart. Types of arrhythmia include: Tachycardia. A faster-than-normal heart rate.
Antiarrhythmic agents, also known as cardiac dysrhythmia medications, are a class of drugs that are used to suppress abnormally fast rhythms (tachycardias), such as atrial fibrillation, supraventricular tachycardia and ventricular tachycardia.
Re-entry ventricular arrhythmia is a type of paroxysmal tachycardia occurring in the ventricle where the cause of the arrhythmia is due to the electric signal not completing the normal circuit, but rather an alternative circuit looping back upon itself. [1] There develops a self-perpetuating rapid and abnormal activation.
Effective treatment consequently requires knowledge of how and where the arrhythmia is initiated and its mode of spread. [27] Lifestyle changes, medication and heart procedures may be needed to control or eliminate the rapid heartbeats and related symptoms. [9] SVTs can be categorised by whether the AV node is involved in maintaining the rhythm.
The most common mechanism underlying sudden cardiac arrest is an arrhythmia (an irregular rhythm). [30] Without organized electrical activity in the heart muscle , there is inconsistent contraction of the ventricles , which prevents the heart from generating adequate cardiac output (forward pumping of blood from the heart to the rest of the ...
The presentation and symptoms a patient can present with are varied and often dependent on the underlying cause of the junctional rhythm. Patient's can be asymptomatic for example, or experience difficulty breathing and chest pain if they have underlying congestive heart failure.