Department of Gynecology and Obstetrics, Medical University Vienna, Vienna, Austria.
Clin J Pain. 2012 May;28(4):324-8. doi: 10.1097/AJP.0b013e3182321cc3.
Venous blood sampling is one of the most common diagnostic medical procedures performed in clinical practice. It has been shown that negatively loaded words may result in negative affective reactions and, consequently, in an increased perception of pain. We aimed to evaluate whether common warnings before venous blood sampling might induce unnecessary pain.
We included 100 healthy participants (50 females, 50 males) who were randomized to one of the 2 study groups ("sting" vs. "beware"). Directly before insertion of the needle, the participants were warned with either the word "sting" or "beware." Venous blood sampling was performed according to a standardized protocol. Preinterventional and postinterventional blood pressure and heart rate, as well as pain scores after venous blood sampling, were evaluated.
There were 98 participants, 26.2 ± 3.2 years of age, who were included into the analysis. Participants experienced significantly more pain after having been warned with the word "sting" compared with the word "beware." The numeric rating scale results were 2.7 ± 1.2 versus 1.9 ± 1.1, respectively (P=0.001).
Words associated with pain increase the perception of pain during venous blood sampling. Omitting these words may be a simple and essential method by which to avoid unnecessary pain.
静脉采血是临床实践中最常见的诊断性医疗程序之一。已经证明，带有负面含义的词汇可能会引起负面的情感反应，从而导致对疼痛的感知增加。我们旨在评估在进行静脉采血前的常见警告是否可能引起不必要的疼痛。
我们纳入了 100 名健康参与者（50 名女性，50 名男性），他们被随机分为 2 个研究组（“刺痛”组与“小心”组）。在插入针头之前，参与者分别接受了“刺痛”或“小心”的警告。静脉采血按照标准化方案进行。评估了采血前和采血后的血压、心率以及采血后的疼痛评分。
共有 98 名参与者（年龄 26.2±3.2 岁）被纳入分析。与使用“小心”相比，使用“刺痛”警告的参与者在采血后明显感到更痛。数字评分量表的结果分别为 2.7±1.2 和 1.9±1.1（P=0.001）。
与疼痛相关的词汇会增加静脉采血时的疼痛感知。省略这些词汇可能是避免不必要疼痛的简单而重要的方法。
