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Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine

Open Access

Laerdal MiniAnne with a counting device: does it improve performance?

  • Conrad A Bjørshol1Email author,
  • Eldar Søreide1,
  • Leif Moen2 and
  • Kjetil Sunde3
Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine200917(Suppl 3):O25

Published: 28 August 2009


Public HealthEmergency MedicineLife SupportChest CompressionBasic Life Support


The Laerdal MiniAnne personal resuscitation manikin with a self-instruction video can effectively teach lay persons basic life support (BLS) in less than 30 minutes [1]. The aim of this study was to assess if the quality of BLS could be improved by adding a counting device to the manikin. The aim of the counting device, which counts the number of correct chest compressions and mouth-to-mouth (MTM) ventilations during two minutes, is to give feedback and thereby improve performance.


59 random employees at Stavanger University Hospital were asked to learn or refresh their BLS skills using a MiniAnne manikin with a self-instruction video. Half of these manikins were equipped with a specially designed counting device. These manikins were equipped with a slightly modified video explaining the use of this counting device. Otherwise np BLS instructions were given. The performance of BLS was measured for the two groups after six months. The two groups were compared using the Mann-Whitney U test.


There was no significant difference in the number of correct chest compressions or MTM ventilations for the employees who received a manikin with a counting device compared to those who received one without (Table 1).

Table 1


With counting device

n = 23

Without counting device

n = 16

P value

Chest compressions

113 (83–143)

132 (73–150)


MTM ventilations

5 (1–8)

3 (0–6)



The addition of a counting device does not improve performance of BLS six months after training with a MiniAnne manikin with self-instruction video.

Authors’ Affiliations

Department of Anaesthesia and Intensive Care, Stavanger University Hospital, Norway
Department of Internal Service, Stavanger University Hospital, Norway
Department of Anaesthesiology and Institute for Experimental Medical Research, Oslo University Hospital, Oslo, Norway


  1. Lynch B, Einspruch EL, Nichol G, Becker LB, Aufderheide TP, Idris A: Effectiveness of a 30-min CPR self-instruction program for lay responders: a controlled randomized study. Resuscitation. 2005, 67 (1): 31-43. 10.1016/j.resuscitation.2005.04.017.View ArticlePubMedGoogle Scholar


© Bjørshol et al; licensee BioMed Central Ltd. 2009

This article is published under license to BioMed Central Ltd.