RT Book, Section A1 Gomella, Tricia Lacy A1 Eyal, Fabien G. A1 Bany-Mohammed, Fayez SR Print(0) ID 1168356330 T1 Defibrillation and Cardioversion T2 Gomella's Neonatology: Management, Procedures, On-Call Problems, Diseases, and Drugs, 8e YR 2020 FD 2020 PB McGraw-Hill Education PP New York, NY SN 9781259644818 LK accesspediatrics.mhmedical.com/content.aspx?aid=1168356330 RD 2024/04/24 AB Defibrillation and cardioversion are procedures that involve giving a controlled electrical shock to the heart through the chest wall and are used for rapid termination of a tachyarrhythmia (a fast, abnormal rhythm originating either in the atrium or ventricle) that is unresponsive to baseline treatment or is causing the patient to have cardiovascular compromise (inadequate systemic perfusion). Baseline treatment consists of correcting metabolic problems, use of vagal maneuvers which work by stimulating the vagal tone that slows the heart rate (eg, diving reflex, bag filled with ice and cold water applied on the whole face for 15–30 seconds without obstructing the airway, rectal stimulation using a thermometer, bending legs and bringing the knees to the chest for 15–30 seconds), use of medications (adenosine, digoxin, propranolol, verapamil, amiodarone, procainamide, lidocaine, or magnesium sulfate), or transesophageal pacing. It is best to try these maneuvers or medical therapy if intravenous access is available. Neonatal arrhythmias are rare, and the majority can be treated with these initial measures.