Defibrillation: Difference between revisions
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== | ''See [[critical care quick reference]] for defibrillation settings (joules) by weight.'' | ||
==Background== | |||
*Unsynchronized shock | |||
{{Defibrillation and cardioversion indications}} | |||
==Contraindications== | ==Contraindications== | ||
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==Equipment Needed== | ==Equipment Needed== | ||
*AED | *Automated External Defibrillator (AED) | ||
*Defibrillator | *Defibrillator | ||
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==Complications== | ==Complications== | ||
*Defibrillator Refractory VF | *Defibrillator Refractory [[VF]] | ||
**Consider apply 2 defibrillators and delivering double sequential external shocks<ref>Hoch DH, et al. Double sequential external shocks for refractory ventricular fibrillation. J Am Coll Cardiol. 1994; 23(5):1141-5.</ref><ref>Cabanas JG, et al. Double Sequential External Defibrillation in Out-of-Hospital Refractory Ventricular Fibrillation: A Report of Ten Cases. Prehosp Emerg Care. 2015; 19(1):126-130.</ref> | **Consider apply 2 defibrillators and delivering [[Double simultaneous external defibrillation|double sequential external shocks]]<ref>Hoch DH, et al. Double sequential external shocks for refractory ventricular fibrillation. J Am Coll Cardiol. 1994; 23(5):1141-5.</ref><ref>Cabanas JG, et al. Double Sequential External Defibrillation in Out-of-Hospital Refractory Ventricular Fibrillation: A Report of Ten Cases. Prehosp Emerg Care. 2015; 19(1):126-130.</ref> | ||
==See Also== | ==See Also== | ||
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==External Links== | ==External Links== | ||
==References== | |||
<references/> | <references/> | ||
[[Category: | [[Category:Cardiology]] | ||
[[Category:Procedures]] | [[Category:Procedures]] | ||
[[Category:Critical Care]] |
Revision as of 16:00, 9 October 2019
See critical care quick reference for defibrillation settings (joules) by weight.
Background
- Unsynchronized shock
Indications
It is important to note that the procedure and indications differ between defibrillation and cardioversion
Defibrillation (Unsynchronized Cardioversion)
Synchronized Cardioversion
- Supraventricular tachycardia (SVT)
- Atrial fibrillation
- Atrial flutter
- Ventricular tachycardia with a pulse
Contraindications
- None
Equipment Needed
- Automated External Defibrillator (AED)
- Defibrillator
Procedure
- Apply pads or paddles
- Paddles may be slightly quicker but pads are viewed to be safer[1]
- Larger pads reduce transthoracic impedance[2]
- “Adult” size in adults
- “Adult” size (8 to 10 cm) for children >10 kg (> approximately 1 year)[3]
- “Infant” size for infants <10 kg
- 4 accepted pad positions: anterolateral, anteroposterior, anterior-left infrascapular, and anterior-right-infrascapular
- Anteroposterior position performs slightly better[4]
- Biphasic setting
Complications
- Defibrillator Refractory VF
- Consider apply 2 defibrillators and delivering double sequential external shocks[7][8]
See Also
External Links
References
- ↑ Benedikte H, et al. Time and safety in defibrillation with paddles versus pads: A comparative study of two defibrillation regimes. Resuscitation. 2013; 84(11):e141–e142.
- ↑ Connell PN, et al. Transthoracic impedance to defibrillator discharge. Effect of electrode size and electrode-chest wall interface. J Electrocardiol. 1973; 6:313–M.
- ↑ Atkins DL, et al. Pediatric defibrillation: current flow is improved by using “adult” electrode paddles. Pediatrics. 1994; 94:90–93.
- ↑ Krasteva V, et al. Transthoracic impedance study with large self-adhesive electrodes in two conventional positions for defibrillation. Physiol Meas. 2006; 27:1009–1022.
- ↑ Neumar RW, et al. 2010 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science. Part 8: Adult Advanced Cardiovascular Life Support. Circulation. 2010; 122: S729-S767.
- ↑ Kleinman ME, et al. 2010 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science. Part 14: Pediatric Advanced Life Support. Circulation. 2010; 122: S876-S908.
- ↑ Hoch DH, et al. Double sequential external shocks for refractory ventricular fibrillation. J Am Coll Cardiol. 1994; 23(5):1141-5.
- ↑ Cabanas JG, et al. Double Sequential External Defibrillation in Out-of-Hospital Refractory Ventricular Fibrillation: A Report of Ten Cases. Prehosp Emerg Care. 2015; 19(1):126-130.