Resuscitation
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Cold infusions have proved to be effective for induction of therapeutic hypothermia after cardiac arrest but so far have not been used for hypothermia maintenance. This study investigates if hypothermia can be induced and maintained by repetitive infusions of cold fluids and muscle relaxants. ⋯ Cold infusions are effective for induction of hypothermia after cardiac arrest, but for maintenance additional cooling techniques are necessary in most cases.
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Bradycardia may represent a serious emergency. The need for temporary and permanent pacing is unknown. ⋯ In our cohort, about 20% of the patients presenting with compromising bradycardia required temporary emergency pacing for initial stabilisation, in 50% permanent pacing had to be established.
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In cardiopulmonary resuscitation, different ratios of compression to ventilation with regard to optimal oxygen transport are considered. We hypothesised that the end tidal fraction of oxygen might increase from levels found in the conventional compression-ventilation ratio of 15:2 if more consecutive ventilations are given because the rescuer would hyperventilate. The second hypothesis was that the air blown into an infant with mouth to mouth ventilation consists of rescuer's dead space air only, meaning that the fraction of oxygen should increase. ⋯ Increasing consecutive compressions and ventilations above 15:2 leads to a statistically significant increase in expired fraction of oxygen. In infant ventilation, the air exhaled into a victim contains some dead space air with a higher end tidal oxygen fraction than in adults.