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目的探讨直立倾斜试验(HUTT)的不同倾斜角度及不同试验反应对受试儿童心理恐惧的影响。方法不明原因晕厥或先兆晕厥儿童107例,年龄5.5~17.8(12.0±2.8)岁,男52例,女55例,随机选取60°、70°或80°进行基础直立倾斜试验(BHUT),BHUT阴性者保持同一倾斜角度进行舌下含化硝酸甘油倾斜试验(SNHUT)。采用Wong-Baker面部表情疼痛量表,在试验结束时让受试儿童对HUTT过程中心理恐惧程度进行自我评定。结果倾斜角度为60°、70°、80°的3组受试儿童HUTT阳性率、血流动力学改变、反应类型分布差异均未见统计学意义(P>0.05)。60°、70°、80°3种倾斜角度对受试儿童心理恐惧程度的影响呈递增趋势,但差异无统计学意义(P>0.05)。HUTT阳性儿童(n=76)心理恐惧程度明显高于HUTT阴性儿童(n=31)(P<0.01)。结论 HUTT可引起受试儿童心理恐惧;60°、70°、80°3种倾斜角度受试儿童心理恐惧呈递增趋势,但差异不显著;HUTT阳性反应可显著增加受试儿童心理恐惧。
Objective To investigate the effect of different tilt angles and different experimental responses on the psychological fear of children undergoing HUTT. Methods 107 children with unexplained syncope or threatened syncope were aged 5.5 to 17.8 years old (12.0 ± 2.8 years), including 52 males and 55 females. The BHUT, BHUT and BHUT were randomly selected at 60 °, 70 ° or 80 °. Negative people to maintain the same tilt angle sublingual nitroglycerin tilt test (SNHUT). Using the Wong-Baker Facial Expression Pain Scale, subjects were asked to self-assess the level of psychological fear during HUTT at the end of the trial. Results The positive rate of HUTT, hemodynamic changes and the distribution of reaction type in the three groups of children with tilt angle of 60 °, 70 ° and 80 ° had no statistical significance (P> 0.05). The effects of three kinds of inclination angles of 60 °, 70 ° and 80 ° on the degree of psychological fear in children showed an increasing trend, but the difference was not statistically significant (P> 0.05). The level of psychological fear in HUTT positive children (n = 76) was significantly higher than that in HUTT negative children (n = 31) (P <0.01). Conclusions HUTT can cause mental fear in children under test. Psychological fear of children under the three angles of inclination of 60 °, 70 °, 80 ° shows an increasing trend, but the difference is insignificant; HUTT positive reaction can significantly increase psychological fear of children under test.