Manual versus automated chest compression for cardiopulmonary resuscitation
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Quality of cardiopulmonary resuscitation (CPR) is likely to be one of the key determinants of successful resuscitation following an out-of-hospital cardiac arrest. Consistent compressions can be difficult to maintain, however, and the quality of both in-hospital and out-of-hospital CPR is sometimes poor. Mechanical devices have been developed with the aim of providing optimal chest compression. One such system, the load-distributing band (LDB) circumferential chest compression device, has been tested in pigs and humans following in-hospital cardiac arrest, and has been shown to improve coronary and systemic perfusion pressures and flows compared with those achieved with manual CPR. Two studies carried out in the US and published recently in JAMA highlight the complexities of resuscitation from an out-of-hospital cardiac arrest.
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