Do different mattresses affect the quality of cardiopulmonary resuscitation?
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To determine the effect of different mattresses on cardiopulmonary resuscitation performance and establish whether emergency deflation of an inflatable mattress improves the quality of resuscitation.
Design and setting
Randomised controlled cross-over trial performed in a general ICU
Critical care staff from a general ICU.
Cardiopulmonary resuscitation on a manikin on the floor or on a bed with a standard foam mattress and inflated and deflated pressure redistributing mattresses. Maximal compression force was measured at different bed heights.
Measurements and results
Compression depth, duty cycle and rate and percentage correct expired air ventilation were recorded on a manikin. Compression depth was significantly lower on the foam (35.2 mm), inflated (37.2 mm) and deflated mattress (39.1 mm) than the floor (44.2 mm). There were no clinically important differences in duty cycle or compression rate. The quality of ventilation was poor on all surfaces. Maximal compression force declined as bed height increased.
Resuscitation performance is adversely affected when performed on a bed (irrespective of mattress type) compared to the floor. There were no differences between the inflated and deflated mattresses, although the deflation process did not adversely affect performance. This study does not support the routine deflation of an inflated mattress during resuscitation and questions the potential benefits from using a backboard. The finding that bed height affects maximal compression forces, challenges the recommendation that cardiopulmonary resuscitation be performed with the bed at middle-thigh level and requires further investigation.
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About this Article
- Do different mattresses affect the quality of cardiopulmonary resuscitation?
Intensive Care Medicine
Volume 29, Issue 12 , pp 2330-2335
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- Cardiopulmonary resuscitation
- Pressure ulcers
- Support surface
- Basic life support
- External chest compression
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