Relevance and significance of pre-CPR conditions in cardio-pulmonary-cerebral resuscitation. A graphic analysis by means of Spectramap. The Cerebral Resuscitation Study Group.
The effects of pre-arrest conditions on success rates of CPCR have been studied in 4501 circulatory arrests that have been recorded by the Belgian CPCR-Registry from 1983 to 1987. A graphical technique called Spectramap has been used for the simultaneous perception of clinical relevance and statistical significance. The success of CPCR is determined to a large extent by pre-arrest conditions. Arrests occurring inside hospitals possess a far better prognosis than those observed outside. (Overall success rate inside hospitals is 18% vs. 7% outside). Site of arrest, time to call, time to CPR, and bystander intervention appear to be relevant and significant conditions outside the hospital. Age, underlying disease and degree of disability are shown to be relevant and significant inside hospitals. The Belgian CPCR-Registry, combined with Spectramap, also allows assessment of the efficiency of emergency services and the efficacy of life supporting treatments. This article describes the graphical method of Spectramap and its application to the Belgian CPCR-Registry.
Lewi
P J
PJ
Information Science Dept., Janssen Research Foundation, Janssen Pharmaceutica NV, Beerse, Belgium.
Mullie
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Quets
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D001530:Belgium; D006262:Health; D006304:Health Status; D006323:Heart Arrest / Q000503:physiopathology / Q000628:therapy; D006760:Hospitalization; D006801:Humans; D012042:Registries; D012131:Respiratory Insufficiency / Q000503:physiopathology / Q000628:therapy; D012151:Resuscitation; D013223:Statistics as Topic; D013997:Time Factors