Training to deeper compression depth reduces shallow compressions after six months in a manikin model

作者：Mpotos N^*; Lemoyne S; Wyler B; Deschepper E; Herregods L; Calle P A; Valcke M A; Monsieurs K G

来源：Resuscitation, 2011, 82(10): 1323-1327.

DOI：10.1016/j.resuscitation.2011.06.004

• Basic life support
• Cardiopulmonary resuscitation
• Compression depth
• Self-learning
• Skill retention

Introduction: Studies show that students, trained to perform compressions between 40 and 50 mm deep, often do not achieve sufficient depth at retention testing. We hypothesized that training to achieve depths >50 mm would decrease the proportion of students with depth <40 mm after 6 months, compared to students trained to a depth interval of 40-50 mm.
Methods: A basic life support (BLS) self-learning station was attended by 190 third year medicine students. They were first offered the possibility to refresh their skills, following the instructions of a 15 min abbreviated Mini Anne (TM) video (Laerdal, Norway) using a full size torso and a face shield. This was followed by further training using Resusci Anne Skills Station (TM) software (Laerdal, Norway). Voice feedback was provided according to randomisation to a standard group (SG) 40-50 mm and a deeper group (DG) >50 mm. Quality of compressions was tested after 6 months.
Results: The SG and DG groups consisted of 90 (67% female) and 100(58% female) participants respectively. At the end of training, all students reached the target depth without overlap between groups. After 6 months, the proportion of students achieving a depth <40 mill was 26/89(29%) in the SG vs. 12/89(14%) in the DG (P = 0.01). The proportion of students with a depth >50 mm was 5/89(6%) for the SG and 44/89 (49%) in the DG (P < 0.001).
Conclusions: The educational strategy to train students to a deeper depth, reduced shallow compressions 6 months after training.

• 出版日期2011-10