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Rearrest
Rearrest (also known as refibrillation or recurrent ventricular fibrillation) is a phenomenon that involves the resumption of a lethal cardiac dysrhythmia after successful return of spontaneous circulation (ROSC) has been achieved during the course of resuscitation. Survival to hospital discharge rates are as low as 7% for cardiac arrest in general and although treatable, rearrest may worsen these survival chances. Rearrest commonly occurs in the out-of-hospital setting under the treatment of health care providers.
== Background ==
Rearrest, which may have a similar etiology to cardiac arrest, is characterized as a compromise in the electrical activity of the heart often due to an ischemic event. The post-arrest patient who has recently obtained pulses, is dependent on prehospital care providers for ventilation assistance, arrhythmia correction through medication and blood pressure monitoring. Therefore insufficient care in any of these treatments may contribute to a rearrest event.
The lethal arrhythmia may be either ventricular fibrillation, ventricular tachycardia or asystole.
A strong suspect that may be a critical contributor to rearrest is the administration of chest compressions to the patient when the patient has already achieved a pulsatile rhythm. It is often difficult to determine the presence of a pulse in a cardiac arrest patient, thus chest compressions may be given by the unaware resuscitator and this added stress on the heart may contribute to a rearrest event.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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