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Yonsei Med J.  2016 Mar;57(2):505-511. 10.3349/ymj.2016.57.2.505.

Training a Chest Compression of 6-7 cm Depth for High Quality Cardiopulmonary Resuscitation in Hospital Setting: A Randomised Controlled Trial

Affiliations
  • 1Department of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Korea. erthim@gmail.com
  • 2Department of Emergency Medicine, College of Medicine, Hallym University, Seoul, Korea.
  • 3School of Electrical Engineering, University of Ulsan, Ulsan, Korea.
  • 4Department of Biomedical Engineering Medicine, College of Medicine, Hanyang University, Seoul, Korea.

Abstract

PURPOSE
During cardiopulmonary resuscitation (CPR), chest compression (CC) depth is influenced by the surface on which the patient is placed. We hypothesized that training healthcare providers to perform a CC depth of 6-7 cm (instead of 5-6 cm) on a manikin placed on a mattress during CPR in the hospital might improve their proper CC depth.
MATERIALS AND METHODS
This prospective randomised controlled study involved 66 premedical students without CPR training. The control group was trained to use a CC depth of 5-6 cm (G 5-6), while the experimental group was taught to use a CC depth of 6-7 cm (G 6-7) with a manikin on the floor. All participants performed CCs for 2 min on a manikin that was placed on a bed 1 hour and then again 4 weeks after the training without a feedback. The parameters of CC quality (depth, rate, % of accurate depth) were assessed and compared between the 2 groups.
RESULTS
Four students were excluded due to loss to follow-up and recording errors, and data of 62 were analysed. CC depth and % of accurate depth were significantly higher among students in the G 6-7 than G 5-6 both 1 hour and 4 weeks after the training (p<0.001), whereas CC rate was not different between two groups (p>0.05).
CONCLUSION
Training healthcare providers to perform a CC depth of 6-7 cm could improve quality CC depth when performing CCs on patients who are placed on a mattress during CPR in a hospital setting.

Keyword

Cardiopulmonary resuscitation; chest compression; basic life support; advanced cardiac life support; bed

MeSH Terms

Adult
Beds
Cardiopulmonary Resuscitation/*education/*methods
Female
Health Personnel/*education
Hospitals
Humans
Male
*Manikins
Pressure
Prospective Studies
*Students, Medical
Thorax/*physiology
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