Monitoring the quality of cardiopulmonary resuscitation.
OBJECTIVE
Numerous recent reports have described limitations in the quality of cardiopulmonary resuscitation. Thus, there has been increasing interest in the techniques available to monitor quality. This review focuses on the major publications since the review published by the International Liaison Committee on Resuscitation in 2005. Some key articles published prior to this time period have also been included.


RESULTS
A number of devices can monitor various components of the quality of cardiopulmonary resuscitation. End-tidal CO2 measurement assists in confirming placement of endotracheal tubes, correlates with cardiac output and detects the return of spontaneous circulation. Turbine flow-meters monitor respiratory rate and tidal volume. Transthoracic impedance monitoring measures respiratory rate, and may assist in confirmation of endotracheal tube placement. A new mechanical device (CPREzy) and a new defibrillator/monitor allow estimation of depth (and rate) of compressions. Ventricular-fibrillation waveform analysis may facilitate better timing of defibrillation. Echocardiography detects conditions that may impair the quality of cardiopulmonary resuscitation.


CONCLUSIONS
Many options are available to monitor the quality of cardiopulmonary resuscitation. Some have significant limitations, and others are only readily available in hospital. The use of the information from this more intensive monitoring promises to improve outcomes of cardiopulmonary resuscitation.
Morley
Peter T
PT
Intensive Care Unit, Royal Melbourne Hospital, Parkville, Victoria, Australia. peter.morley@mh.org.au
D001784:Blood Gas Analysis; D002307:Cardiography, Impedance; D016887:Cardiopulmonary Resuscitation / Q000592:standards*; D004569:Electroencephalography; D006801:Humans; D008485:Medical Audit; D008991:Monitoring, Physiologic / Q000379:methods; D011785:Quality Assurance, Health Care; D011787:Quality of Health Care