Resuscitation
Volume 60, Issue 2 , Pages 171-174 , February 2004

Differential contribution of skin impedance and thoracic volume to transthoracic impedance during external defibrillation

  • Charles D Deakin

      Affiliations

    • Shackleton Department of Anaesthetics, Southampton University Hospital, N.H.S. Trust, Tremona Road, Southampton SO16 6YD, UK
    • Corresponding Author InformationCorresponding author. Tel.: +44-2380-796135; fax: +44-2380-794348.
    • ,
  • Daniel M Sado

      Affiliations

    • Shackleton Department of Anaesthetics, Southampton University Hospital, N.H.S. Trust, Tremona Road, Southampton SO16 6YD, UK
    • ,
  • Graham W Petley

      Affiliations

    • Department of Medical Physics and Bioengineering, Southampton University Hospital, N.H.S. Trust, Tremona Road, Southampton SO16 6YD, UK
    • ,
  • Frank Clewlow

      Affiliations

    • Department of Medical Physics and Bioengineering, Southampton University Hospital, N.H.S. Trust, Tremona Road, Southampton SO16 6YD, UK

Received 13 August 2003 ,Revised 21 September 2003 ,Accepted 10 October 2003.

References 

  1. Ewy G. Electrophysiology, pacing and arrhythmia. Clin. Cardiol. 1994;17:79–84
  2. Deakin CD, Sado DM, Petley GW, Clewlow F. Determining the optimal paddle force for external defibrillation. Am. J. Cardiol. 2002;90:812–813
  3. Deakin CD, Bennetts S, Petley GW, Clewlow F. What is the optimal paddle force during paediatric external defibrillation?. Resuscitation. 2003;59:83–88
  4. Zipes D, Fisher J, King R, Nicoll A, Jolly W. Termination of ventricular fibrillation in dogs by depolarising a critical amount of myocardium. Am. J. Cardiol. 1975;36:37
  5. Sirna S, Ferguson D, Charbonnier F, Kerber R. Factors affecting trans-thoracic impedance during electrical cardioversion. Am. J. Cardiol. 1988;62:1048–1052
  6. Deakin CD, McLaren RM, Petley GW, Dalrymple-Hay MJR, Clewlow F. Effects of positive end-expiratory pressure on trans-thoracic impedance—implications for defibrillation. Resuscitation. 1998;37:9–12
  7. Lermann B, Deale O. Relation between trans-cardiac and trans-thoracic current during defibrillation. Circ. Res. 1990;67:1420–1426
  8. Advanced Cardiovascular Life Support. Part 6. Section 2: Defibrillation. Resuscitation 2000; 46: 109–13.
  9. Widdicombe J, Davies A. “Respiratory Physiology.” London: Edward Arnold, 1991.
  10. Wenzel V, Idris AH, Banner MJ, et al.  Respiratory system compliance decreases after cardiopulmonary resuscitation and stomach inflation: impact of large and small tidal volumes on calculated peak airway pressure. Resuscitation. 1998;38:113–118
  11. Davis K, Johannigman JA, Johnson RC, Branson RD. Lung compliance following cardiac arrest [published correction appears in Acad Emerg Med. 1995;2:1115]. Acad. Emerg. Med. 1995;2:874–878
  12. Ewy GA, Hellman DA, McClung S, Taren D. Influence of ventilation phase on trans-thoracic impedance and defibrillation effectiveness. Crit. Care Med. 1980;8:164–166

PII: S0300-9572(03)00373-3

doi: 10.1016/j.resuscitation.2003.10.001

Resuscitation
Volume 60, Issue 2 , Pages 171-174 , February 2004

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