Title
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Repetitive sessions of formative self-testing to refresh CPR skills : a randomised non-inferiority trial
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Author
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Abstract
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Objectives: To investigate whether repetitive sessions of formative self-testing (RFST) result in an equal cardiopulmonary resuscitation (CPR) skill level compared to repetitive sessions of formative self-testing with additional practice (RFSTAP). Methods: In a non-inferiority trial, 196 third-year medical students were randomised to an RFST or RFSTAP group. Testing and practising took place in a self-learning station equipped with a manikin connected to a computer. Each cycle of RFST consisted of a 2-min CPR test followed by feedback and feedforward. In the RFSTAP group, additional practice consisted of CPR exercises with a computer voice feedback. To be successful, a combined score consisting of >= 70% compressions with a depth of >= 50 mm and >= 70% compressions with complete release (<5 mm) and a compression rate of 100-120 min(-1) and >= 70% ventilations with a volume of 400-1000 ml had to be achieved within 6 weeks. Skill retention was measured after 6 months. The non-inferiority margin was predefined as a 10% difference in success rate. Results: After six weeks the success rate in both groups was 96%: 99/103 (RFST) and 89/93 (RFSTAP). After 6 months, the success rate in the competent students was 26/96 (27%) for RFST and 32/86 (37%) for RFSTAP (three students dropped out in each group). The difference in the success rate between RFSTAP and RFST was 10% and 90% (CI - 2 to 23%), respectively. As the upper bound exceeded 10%, non-inferiority was inconclusive. For each CPR skill separately, RFST was non-inferior for ventilation and complete release, superior for compression depth and inferior for compression rate. Conclusions: RFST and RFSTAP were equally effective to refresh skills within 6 weeks. After 6 months, non-inferiority was inconclusive for the combined score. Our results indicate the potential of RFST to refresh CPR skills. (C) 2014 Elsevier Ireland Ltd. All rights reserved. |
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Language
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English
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Source (journal)
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Resuscitation. - Limerick, 1972, currens
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Publication
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Limerick
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2014
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ISSN
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0300-9572
[print]
1873-1570
[online]
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DOI
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10.1016/J.RESUSCITATION.2014.06.011
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Volume/pages
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85
:9
(2014)
, p. 1282-1286
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ISI
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000341306300048
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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