The visual analog scale for pain - Clinical significance in postoperative patients
The visual analog scale for pain - Clinical significance in postoperative patients
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DOI：
10.1097/00000542-200112000-00013
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发表时间：
2001-12-01
期刊：
影响因子：
8.8
通讯作者：
Beilin, Y
中科院分区：
文献类型：
--
作者：
Bodian, CA;Freedman, G;Beilin, Y
背景：视觉类比量表在研究中得到了广泛的应用，但其与研究环境外的临床经验的联系以及VAS表格的最佳管理方式尚未得到很好的确立。本研究将静脉病人自控镇痛剂量的变化定义为临床相关结果，并将其与术后疼痛的VAS测量进行比较。方法：对150例腹部手术后患者进行视觉模拟评分。同一天下午，50名患者在上午使用的同一表格上提供了VAS评分，50名患者在新表格上进行了VAS评分，50名患者没有被要求进行第二次VAS测量。结果：下午发放新的VAS表格的患者与使用显示上午数值的表格的患者的视觉模拟尺寸值和数值变化相似。要求额外止痛的患者比例分别为4%、43%和80%，对应的下午VAS评分分别为30分以下、31-70分和大于70分。对于下午值小于等于或大于70的患者，上午VAS评分的变化对患者自控止痛剂的剂量没有明显影响，但至少10分的变化确实区分了下午值在31到70之间的患者。结论：当疼痛是研究中的一个结果指标时，将最终的VAS评分分成几个类别比使用全谱测量值或值的变化提供了更大的临床相关性。看到较早的VAS表格对后来的价值观没有明显影响。
Background: The visual analog scale is widely used in research studies, but its connection with clinical experience outside the research setting and the best way to administer the VAS forms are not well established. This study defines changes in dosing of intravenous patient-controlled analgesia as a clinically relevant outcome and compares it with VAS measures of postoperative pain.Methods: Visual analog scale measurements were obtained from 150 patients on the morning after intraabdominal surgery. On the same afternoon, 50 of the patients provided a VAS score on the same form used in the morning, 50 on a new form, and 50 were not asked for a second VAS measurement.Results: Visual analog scale values and changes in value were similar for patients who were given a new VAS form in the afternoon and those who used the form that showed the morning value. The proportions of patients requesting additional analgesia were 4, 43, and 80%, corresponding to afternoon VAS Scores Of 30 or less, 31-70, and greater than 70, respectively. Change from morning VAS score had no apparent in-fluence on patient-controlled analgesic dosing for patients with afternoon values of 30 or less or greater than 70, but changes in VAS scores of at least 10 did discriminate among patients whose afternoon values were between 31 and 70.Conclusions: When pain is an outcome measure in research studies, grouping final VAS scores into a small number of categories provides greater clinical relevance for comparisons than using the full spectrum of measured values or changes in value. Seeing an earlier VAS form has no apparent influence on later values.