Resuscitation
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We sought to determine if the difference between PaCO2 and ETCO2 is associated with hospital mortality and neurologic outcome following out-of-hospital cardiac arrest (OHCA). ⋯ Neither PaCO2-ETCO2 nor ETCO2 were strong predictors of survival or neurologic status at hospital discharge. While they may be useful to guide ventilation and resuscitation, these measures should not be used for prognostication after OHCA.
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Observational Study
Increase in End-Tidal Carbon Dioxide after Defibrillation Predicts Sustained Return of Spontaneous Circulation During Out-of-Hospital Cardiac Arrest.
Guidelines recommend monitoring end-tidal carbon dioxide (ETCO2) during out-of-hospital cardiac arrest (OHCA), though its prognostic value is poorly understood. This study investigated the relationship between ETCO2 and return of spontaneous circulation (ROSC) after defibrillation in intubated non-traumatic OHCA patients. ⋯ ETCO2 rises after defibrillation in most patients during cardiac arrest. Patients with sustained ROSC experience larger rises, though the majority experience rises of less than 10 mmHg.
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To evaluate whether end-tidal carbon dioxide (ETCO2) value at intubation and its early increase (10 min) after intubation predict both the survival to hospital admission and the survival at hospital discharge, including good neurological outcome (CPC 1-2), in patients with out-of-hospital cardiac arrest (OHCA). ⋯ ETCO2 value > 20 mmHg at intubation and its increase during resuscitation improve the prediction of survival at hospital discharge with good neurological outcome of OHCA patients. ETCO2 increase during resuscitation is a more powerful predictor than ETCO2 at intubation. A larger prospective study to confirm this finding appears warranted.
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European Resuscitation Council (ERC) and American Heart Association (AHA) guidelines emphasize a rapid administration of calcium chloride (10 ml 10 % CaCl2) to protect the myocardium in the hyperkalaemia algorithm. However, calcium chloride preparations available in European markets vary from country to country. In our opinion, the drug dose recommended in the guidelines should not raise questions about the volume and amount of calcium in the intravenous supply and should be unambiguous to minimize the risk of error. Calcium dose should be given in terms of mmol/L or mEq or mg of calcium ions.
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Hypoxia and hyperoxia following resuscitation from out-of-hospital cardiac arrest (OHCA)may cause harm by exacerbating secondary brain injury. Our objective was to retrospectively examine theassociationof prehospital post-ROSC hypoxia and hyperoxia with the primary outcome of survival to discharge home. ⋯ Prehospital post-ROSC hypoxia and hyperoxia were associated with worse outcomes in this dataset.