Cardioversion vs defibrillation

Cardioversion vs defibrillation information.

Defibrillation - treatment immediately life-threatening arrhythmias, with whom the patient is no pulse, ie ventricular fibrillation (VF) or pulseless ventricular tachycardia (VT).

Cardioversion - is a process to convert the arrhythmia back to sinus rhythm. Electrical cardioversion is used when a patient has a pulse, but is either unstable or not, or chemical cardioversion is unlikely to be successful. These scenarios can be associated, pulmonary edema, syncope, and hypotension with pain in the chest.

The goal of both is to electricity to stun the heart, a second supply to the heart so that normal sinus rhythm in their hearts to dig through the normal electrical center, ie the sinus node.

History of cardioversion vs defibrillation debate.

At the end of the 18th Century Prevost and Batelli, two physiologists conducted shock experiments on the heart of dogs. Your use of electric shocks and found that small shocks, the dogs had the heart to stop VF, and the greater shock. It was the first time in humans by Claude Beck, cardiothoracic surgeons applied - congenital heart defects in 14 years-old boy undergoing cardiac surgery. The electrodes were placed in an open heart.

Closed chest defibrillation has been identified only in 1950 "Holy Russia. But it was not until 1959 that Bernard Lown modern monophasic defibrillator developed. This is for the charging capacitor, and delivers a shock paddles for a few milliseconds. In 1980 's Two-phase course was found. The shock set at the lower levels of energy, as well as monophasic shocks effectively. Antiarrhythmics versus Court ICD (AVID) reported that the survival rates later inserted in patients with ICD for VF, VT (with syncope or sustained VT with a low ejection fraction, compared with drugs) is usually amiodarone. This process, together with two other randomized clinical trials (Canadian Implantable Defibrillator trial and cardiac arrest study Hamburg) gave a total of 15-23% reduction in the risk of mortality in patients with ICD.

It was very concerned that ICD therapy is not cost effective. Each unit will cost tens of thousands of pounds. Further work in this area is currently underway.

Cardioversion vs defibrillation debate is open. Those two methods have its own advantages and disadvantages.