Do different mattresses affect the quality of cardiopulmonary resuscitation?
OBJECTIVE: 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 PARTICIPANTS: Critical care staff from a general ICU. INTERVENTIONS: 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 su
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