two-minute frames in study [12]) or by the lack of subgroup anal

two-minute frames in study [12]) or by the lack of subgroup analyses. Indeed, the reduction of ECC depth over time in Jantti’s study failed to reach significance level but showed an analogous tendency (p = 0.079). According to the participants’ subjective perception, 30:2 was more exhausting but was also rated as more comfortable.

This confirms the subjective evaluation of participants by Deschilder et al. [11]. Our findings may be attributed to the frequency of interruption of ECC by interposed ventilations. The model There is an ongoing discussion as to Inhibitors,research,lifescience,medical whether standard resuscitation manikins and manikin-based scenarios may sufficiently reflect clinical reality [31]. First, in contrast to a linear relation Inhibitors,research,lifescience,medical in manikins, there is a rather non-linear relation between compression depth and force to be applied to the human chest [32]. Secondly, rescuers, although physically capable of performing effective ECC, may refrain from performing correct ECC because of fear of injuring the patient, particularly when the patient’s chest is rather stiff. Nevertheless, controlled investigations on the technical quality of ECC related to variable conditions are usually performed on resuscitation manikins [6,12,33,34]. Their mechanical properties facilitate training and assessment

of the characteristics of chest compression, decompression and rate [35]. Factors that do have an impact on the quality of ECC, such as BMI, Inhibitors,research,lifescience,medical physical fitness and gender remain the

same irrespective of the depth-force relation. Furthermore, the average force selleck inhibitor needed to compress a patient’s elastic chest to the recommended minimum Inhibitors,research,lifescience,medical depth of 38 mm has been determined to be 27.5 ± 13.6 kg [32]. The force-depth relation of the manikin used in this study (32.5 kg for 38 mm) accurately reflects this clinical reality. Moreover, the stressful setting of a clinical resuscitation could distract healthcare providers from focusing their attention on the correct performance of ECC, hence physical fitness and biometric parameters may unconsciously influence the quality Inhibitors,research,lifescience,medical of ECC even more. Limitations We are aware of the limited number of promotion information female participants, which Cilengitide may have prevented us from gaining significance levels of p < 0.05 in several tests and may have caused a bias in evaluating the entire cohort. However, gender-based analyses revealed parallel results for male and female rescuers. As our cohort consisted of professional healthcare providers, our results may differ from those found among laypersons. Furthermore, our participants only imitated rescue breaths, and fatigue during actual CPR with correctly provided rescue breaths or during continuous ECC (e.g. in the context of hands-only CPR or during continuous ECC with a secured airway) might therefore be different, Moreover, our study was performed prior to the publication of the updated 2010 guidelines, and the correct compression depth was therefore defined as 38-51 mm according to the 2005 guidelines.

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