Oct 31, 2006

Quality of out-of-hospital cardiopulmonary resuscitation with real time automated feedback: a prospective interventional study

Resuscitation
Jo Kramer-JohansenPetter Andreas Steen

Abstract

To compare quality of CPR during out-of-hospital cardiac arrest with and without automated feedback. Consecutive adult, out-of-hospital cardiac arrests of all causes were studied. One hundred and seventy-six episodes (March 2002-October 2003) without feedback were compared to 108 episodes (October 2003-September 2004) where automatic feedback on CPR was given. Automated verbal and visual feedback was based on measured quality with a prototype defibrillator. Quality of CPR was the main outcome measure and survival was reported as specified in the protocol. Average compression depth increased from (mean +/- S.D.) 34 +/- 9 to 38 +/- 6 mm (mean difference (95% CI) 4 (2, 6), P < 0.001), and median percentage of compressions with adequate depth (38-51 mm) increased from 24% to 53% (P < 0.001, Mann-Whitney U-test) with feedback. Mean compression rate decreased from 121 +/- 18 to 109 +/- 12 min(-1) (difference -12 (-16, -9), P = 0.001). There were no changes in the mean number of ventilations per minute; 11 +/- 5 min(-1) versus 11 +/- 4 min(-1) (difference 0 (-1, 1), P = 0.8) or the fraction of time without chest compressions; 0.48 +/- 0.18 versus 0.45 +/- 0.17 (difference -0.03 (-0.08, 0.01), P = 0.08). With intention to treat analysi...Continue Reading

  • References23
  • Citations269

Mentioned in this Paper

Electric Impedance
Emergency Care
Logistic Regression
Basic Cardiac Life Support
Dissecting Aneurysm of the Thoracic Aorta
Odds Ratio
Anterior Thoracic Region
Sternum
Chest
Cardiopulmonary

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