Search results
Results From The WOW.Com Content Network
Amiodarone is an effective, antiarrhythmic-of-choice in achieving cardioversion to sinus rhythm in critical care populations with new onset atrial fibrillation (NOAF). However, other anti-arrhythmic agents may exert superior rhythm control, rate control and lower mortality rate which may be more favourable than amiodarone in specific cases. [32]
(The re-entrant rhythm is less likely to interact with tissue that has become refractory). The class III agents exhibit reverse-use dependence (their potency increases with slower heart rates, and therefore improves maintenance of sinus rhythm). Inhibiting potassium channels results in slowed atrial-ventricular myocyte repolarization.
Amiodarone is also safe to use in individuals with cardiomyopathy and atrial fibrillation, to maintain normal sinus rhythm. Amiodarone prolongation of the action potential is uniform over a wide range of heart rates, so this drug does not have reverse use-dependent action. Amiodarone was the first agent described in this class. [4]
If the person has a non-shockable rhythm, such as asystole, following an initial round of CPR, 1 mg of epinephrine should be given every 3–5 minutes, with the goal of obtaining a shockable rhythm. [108] Amiodarone and lidocaine are anti-arrhythmic medications. Amiodarone is a class III antiarrhythmic.
Wandering atrial pacemaker (WAP) is an atrial rhythm where the pacemaking activity of the heart originates from different locations within the atria. [1] This is different from normal pacemaking activity, where the sinoatrial node (SA node) is responsible for each heartbeat and keeps a steady rate and rhythm. Causes of wandering atrial ...
Clinical trials have compared dronedarone to placebo and to amiodarone, for its ability to reduce atrial fibrillation, to reduce mortality overall and from cardiac causes, and for its adverse effects, including excess mortality. [6] [10] Dronedarone is a non-iodinated class III anti-arrhythmic drug which helps patients return to normal sinus ...
Boxer cardiomyopathy (also known as "Boxer arrhythmogenic right ventricular cardiomyopathy") is a disease of the myocardium primarily affecting Boxer dogs.It is characterized by the development of ventricular tachyarrhythmias, resulting in syncope and sudden cardiac death.
Junctional tachycardia is a form of supraventricular tachycardia characterized by involvement of the AV node. [1] It can be contrasted to atrial tachycardia.It is a tachycardia associated with the generation of impulses in a focus in the region of the atrioventricular node due to an A-V disassociation. [2]