Quality of chest compressions in cardiopulmonary resuscitation performed in extreme ambient temperature conditions
Abstract
Under the care of a team of health professionals in an out-of-hospital cardiorespiratory arrest (PCREH), they can be found in conditions in extreme conditions of ambient temperature, depending on the area where they are located, the time of the year, and even the time of day.
Objective: The objective of this study was to verify whether the efficacy of Cardiopulmonary Resuscitation (CPR) was affected by extreme heat (40ºC) and cold (0ºC) temperature environments, compared to a CPR in ambient temperature (22ºC).
Method: 2 minutes of uninterrupted external chest compressions (ECC) were performed under ambient temperature conditions of 40ºC, 0ºC and 22ºC, in a realistic mannequin Resusci Anne QCPR with SIMPAD.
Results: 30 participants, both people with prior training in CPR (86.7%) and without it (13.3%), were part of the sample, 26 women (86.7%) and 4 men (13.3%), with a mean age of 27.37 ± 8.88 years. No statistically significant differences were found in the efficacy of CPR; but there were differences between the total number of CT (p = 0.042), the average depth of the ECC (p = 0.015) and the average frequency (p = 0.034). The Borg scale of perceived exertion (RPE) showed an average of 4.4 ± 1.303 at 22° C, 4.97 ± 1.402 at 40° C and 4.87 ± 2.08 at 0° C (p> 0.05). There were no significant differences in hair lactate.
Conclusions: It is concluded that there are no significant differences between the three conditions, although it seems that the cold and room temperatures resemble results and that the heat temperature offers a slight disadvantage of the others.
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