Therapeutic procedures for heart conditions ( diseases )
Defibrillation
Defibrillation is the definitive treatment of potentially fatal cardiac arrhythmias, ventricular fibrillation and pulseless ventricular tachycardia. Defibrillation consists of delivering a therapeutic dose of electrical energy in the affected heart with a device called a defibrillator. This depolarizes a critical mass of the heart muscle, terminates the arrhythmia, and allows normal sinus rhythm is restored the body's natural pacemaker, the sinus node of the heart. Defibrillators can be external, transvenous, or implanted, depending on the type of device or as needed. Some external units, known as automated external defibrillators (AEDs), automate the diagnosis of treatable rhythms, meaning that it was the answer or bystanders are able to use successfully with little or, in some cases, no training.
It is not effective for termination asystole (complete cardiac activity, better known as Flatline) and pulse less electrical activity (PEA). The purpose of defibrillation of ventricular arrhythmia, is to apply a controlled electric shock to the heart, leading to depolarization of the entire electrical wiring system in the heart. Once the heart repolarise normal electrical impulses can occur, in which case a ventricular arrhythmia over. But if it is not enough energy used for defibrillation, the heart can not be completely depolarized, in which ventricular tachycardia or fibrillation case can not be stopped. In addition, if the heart is not enough oxygen or there is instability of electrolytes in cardiac cells, ventricular arrhythmias may again ..
TEMPORARY PACING.
Transvenous temporary pacing is much less painful than the transthoracic approach is required for many directions as a bridge to permanent stimulation especially in patients who are unable to comply immediately or permanent implantation in patients with bradycardia is severe and hemodynamic (blood pressure, pulse rate) is unstable. It is necessary, often patients with bricks infranodal severe and less frequent with AV nodal block and sick sinus syndrome. It can be bound to consider a significant bradycardia due to drugs, as a surplus of digitalis. Planned or actual bradyarrthythmia during acute myocardial infarction may also require temporary pacing. The appearance of a right bundle branch block (RBBB) on the cardiac conduction system may precede block infranodal. A sudden change can occur from 1:01 abnormal conduction block Mobitz II second degree or complete asystole.
The lack of an escape rate is above the potential dangerous and warrants temporary pacing even with only the beginning of the BBD in the presence of acute myocardial infarction earlier. temporary pacing of an atrium or ventricle is often useful after cardiac surgery when transient bradyarrhythmias and atrial flutter are common. It can also be used in recurrent tachyarrhythmias as torsade de pointes and incessant ventricular tachycardia.
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