BACKGROUND In an out-of-hospital emergency situation bystander intervention is essential for a sufficient functioning of the chain of rescue. The basic measures of cardiopulmonary resuscitation (Basic Life Support - BLS) by lay people are therefore definitely part of an effective emergency service of a patient needing resuscitation. Relevant knowledge is provided to the public by various course conceptions. The learning success concerning a one day first aid course ("LSM" course in Germany) has not been much investigated in the past. We investigated to what extent lay people could perform BLS correctly in a standardised manikin scenario. An aim of this study was to show how course repetitions affected success in performing BLS. METHODS The "LSM course" was carried out in a standardised manner. We tested prospectively 100 participants in two groups (Group 1: Participants with previous attendance of a BLS course; Group 2: Participants with no previous attendance of a BLS course) in their practical abilities in BLS after the course. Success parameter was the correct performance of BLS in accordance with the current ERC guidelines. RESULTS Twenty-two (22%) of the 100 investigated participants obtained satisfactory results in the practical performance of BLS. Participants with repeated participation in BLS obtained significantly better results (Group 1: 32.7% vs. Group 2: 10.4%; p < 0.01) than course participants with no relevant previous knowledge. CONCLUSION Only 22% of the investigated participants at the end of a "LSM course" were able to perform BLS satisfactorily according to the ERC guidelines. Participants who had previously attended comparable courses obtained significantly better results in the practical test. Through regular repetitions it seems to be possible to achieve, at least on the manikin, an improvement of the results in bystander resuscitation and, consequently, a better patient outcome. To validate this hypothesis further investigations are recommended by specialised societies.

中文翻译：

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在德国对旁观者进行基本生命支持的实际检查：一项前瞻性人体模型研究。


背景技术在院外紧急情况下，旁观者干预对于救援链的充分运作至关重要。因此，由非专业人士实施的心肺复苏（基本生命支持 - BLS）的基本措施绝对是为需要复苏的患者提供有效紧急服务的一部分。通过各种课程概念向公众提供相关知识。过去，有关一日急救课程（德国“LSM”课程）的学习成功率并没有得到太多调查。我们调查了外行人在标准化模型场景中正确执行 BLS 的程度。本研究的目的是展示课程重复如何影响 BLS 的成功。方法标准化开展“LSM课程”。我们前瞻性地测试了两组 100 名参与者（第 1 组：之前参加过 BLS 课程的参与者；第 2 组：之前没有参加过 BLS 课程的参与者）在课程结束后的 BLS 实践能力。成功参数是 BLS 根据当前 ERC 指南的正确性能。结果 100 名调查参与者中有 22 名 (22%) 在 BLS 的实际表现中获得了满意的结果。重复参与 BLS 的参与者比没有相关先前知识的课程参与者获得了明显更好的结果（第 1 组：32.7% 对比第 2 组：10.4%；p < 0.01）。结论 在“LSM 课程”结束时，只有 22% 的受调查参与者能够根据 ERC 指南令人满意地执行 BLS。之前参加过类似课程的参与者在实践测试中取得了明显更好的成绩。 通过定期重复，至少在人体模型上，似乎可以改善旁观者复苏的结果，从而改善患者的预后。为了验证这一假设，专业协会建议进行进一步的调查。