Dual sequential defibrillation: Does one plus one equal two?

      Basic life support (BLS) and defibrillation are the only two practical interventions that have been shown to improve outcome in cardiac arrest. It is therefore important that both are optimized if we are to improve outcome for our patients. Although there have been a number of important studies over the past few years looking at the optimal delivery of BLS,
      • Bhardwaj A.
      • Abella B.S.
      Does chest compression fraction matter, after all?.
      • Cheskes S.
      • Common M.R.
      • Byers A.P.
      • Zhan C.
      • Silver A.
      • Morrison L.J.
      The association between chest compression release velocity and outcomes from out-of-hospital cardiac arrest.
      • Cheskes S.
      • Schmicker R.H.
      • Rea T.
      • et al.
      Chest compression fraction: a time dependent variable of survival in shockable out-of-hospital cardiac arrest.
      • Kovacs A.
      • Vadeboncoeur T.F.
      • Stolz U.
      • et al.
      Chest compression release velocity: association with survival and favorable neurologic outcome after out-of-hospital cardiac arrest.
      • Olsen J.A.
      • Brunborg C.
      • Steinberg M.
      • et al.
      Pre-shock chest compression pause effects on termination of ventricular fibrillation/tachycardia and return of organized rhythm within mechanical and manual cardiopulmonary resuscitation.
      • Partridge R.
      • Tan Q.
      • Silver A.
      • Riley M.
      • Geheb F.
      • Raymond R.
      Rhythm analysis and charging during chest compressions reduces compression pause time.
      • Vadeboncoeur T.
      • Stolz U.
      • Panchal A.
      • et al.
      Chest compression depth and survival in out-of-hospital cardiac arrest.
      manuscripts involving defibrillation and in particular, optimal energy levels, have disappointingly not been published to any great extent in recent years. Why is this?
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