![]() Autoresuscitation (Lazarus phenomenon) after termination of cardiopulmonary resuscitation – a scoping review. You can learn more about how we ensure our content is accurate and current by reading our editorial policy. Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. If they don’t improve until CPR stops, it may look like your circulation returns spontaneously. These conditions are usually treated during CPR, but they can take some time to resolve. Some conditions such as a high level of potassium or too much acid in your blood can cause your heart to stop beating. If it’s long enough, it appears that your circulation returns spontaneously rather than because of the shock. Sometimes there’s a delay between the shock and its effect. Temporary cardiac arrest after defibrillationĭuring CPR, a defibrillator may be used to send an electrical shock to your heart to try to restart it or to reset an irregular heart rhythm known as arrhythmia. If the medications are effective, your circulation will spontaneously return. Once air trapping resolves and the pressure in your chest is low enough, blood will flow to your heart, carrying the medication with it. When air trapping stops blood from returning to your heart, anything in your blood, including medication given through intravenous (IV) in your arms or legs, can’t get there. Medications given during CPR need to reach your heart to work. Circulation can return, and it can look like your heart has restarted itself. ![]() When CPR stops, the trapped air starts leaving your lungs, which reduces the pressure in your chest.Įventually, blood from your body can flow to your heart and be pumped to the rest of your body.
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