So anyway, we have just taken off the X-Clamp, and the patient is relatively warm, and we decide to cardiovert due to fibrillation. Pretty standard procedure- we see it more often than not. During this delay, the machine reads and synchronizes with the patients ECG rhythm. This occurs so that the shock can be delivered with or just after the peak of the R-wave in the patients QRS complex. If the shock occurs on the t-wave during repolarization , there is a high likelihood that the shock can precipitate VF Ventricular Fibrillation. The most common indications for synchronized cardioversion are unstable atrial fibrillation, atrial flutter, atrial tachycardia, and supraventricular tachycardias.
cardioversion vs ablation
Cardioversion - Wikipedia
Cardiac arrhythmias are common but deadly conditions that affect patients both inside and outside the hospital. One of the techniques that may be used to successfully treat an arrhythmia is synchronized cardioversion. An overview of this technique and its use is provided below. Synchronized cardioversion is a specific medical procedure used to restore a normal heart rhythm to a patient who is experiencing an arrhythmia, which is an irregular heart rhythm. After this shock, the heart often may resume a normal rhythm.
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Synchronized Electrical Cardioversion
Cardioversion is the conversion of a cardiac heart arrhythmia into an alternative cardiac rhythm. Cardioversion refers to a variety of medical procedures. The most common involve either medications pharmacological cardioversion or electricity electrical cardioversion or defibrillation. Electrical cardioversion uses electrodes that are several inches across to conduct electricity through the heart muscle. The electrodes can be placed externally on the chest wall or internally directly on the heart muscle.
Cardioversion is a medical procedure by which an abnormally fast heart rate tachycardia or other cardiac arrhythmia is converted to a normal rhythm using electricity or drugs. Synchronized electrical cardioversion uses a therapeutic dose of electric current to the heart at a specific moment in the cardiac cycle , restoring the activity of the electrical conduction system of the heart. Defibrillation uses a therapeutic dose of electric current to the heart at a random moment in the cardiac cycle , and is the most effective resuscitation measure for cardiac arrest associated with ventricular fibrillation and pulseless ventricular tachycardia. To perform synchronized electrical cardioversion, two electrode pads are used or, alternatively, the traditional hand-held "paddles" , each comprising a metallic plate which is faced with a saline based conductive gel.