期刊
AMERICAN JOURNAL OF CRITICAL CARE
卷 22, 期 5, 页码 412-422出版社
AMER ASSOC CRITICAL CARE NURSES
DOI: 10.4037/ajcc2013705
关键词
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资金
- National Institutes of Health [F31 NR010433]
Background Facial expression is often used to evaluate pain in noncommunicative critically ill patients. Objectives To describe facial behavior during endotracheal suctioning, determine facial behaviors that characterize the pain response, and describe the effect of patient factors on facial behavior during pain response. Methods Fifty noncommunicative patients receiving mechanical ventilation were video recorded during 2 phases (rest and endotracheal suctioning). Pain ratings were gathered by using the Behavioral Pain Scale. Facial behaviors were coded by using the Facial Action Coding System for 30 seconds for each phase. Results Fourteen facial actions were associated more with endotracheal suctioning than with rest (z = 5.78; P<.001). The sum of intensity of the 14 actions correlated with total mean scores on the Behavioral Pain Scale (r = 0.71; P<.001) and with the facial expression component of the scale (r = 0.67; P<.001) during suctioning. In stepwise multivariate analysis, 5 pain-relevant facial behaviors (brow raiser, brow lower, nose wrinkling, head turned right, and head turned up) accounted for 71% of the variance (adjusted R-2 = 0.682; P<.001) in pain response. The sum of intensity of the 5 actions correlated with total mean scores on the behavioral scale (r = 0.72; P<.001) and with the facial expression component of that scale (r = 0.61; P<.001) during suctioning. Patient factors had no association with pain intensity scores. Conclusions Upper facial expressions are most frequently activated during pain response in noncommunicative critically ill patients and might be a valid alternative to self-report ratings.
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