Lee Tien-Wen, Yu Younger W Y, Chen Tai-Jui, Tsai Shih-Jen
Department of Psychiatry, Tzu Chi General Hospital, Hualien City.
J Psychiatry Neurosci. 2005 May;30(3):202-5.
To investigate the loudness dependence of the auditory evoked potential (LDAEP) in predicting response to treatment for major depression.
One hundred patients of Chinese ethnicity with major depression were divided into 2 groups, having strong or weak pretreatment LDAEP; the cutoff was the median of the LDAEP slope (for amplitude as a function of intensity). There were no between-group differences before treatment in terms of score on the Hamilton Depression Rating Scale (HDRS), age or sex distribution. The LDAEP for 4 intensity levels (60, 70, 80 and 90 dB) was recorded before treatment. Each patient then received fluoxetine 20 mg per day for 4 weeks. The response to treatment was evaluated by means of the HDRS.
At week 4, the HDRS score had declined by 44.3; for the group with strong LDAEP and by 34.4% for the group with weak LDAEP (t for mean difference = 2.584, p = 0.011).
Strong pretreatment LDAEP predicted a favourable response to treatment with a selective serotonin reuptake inhibitor in patients with major depression.
研究听觉诱发电位响度依赖性(LDAEP)在预测重度抑郁症治疗反应中的作用。
将100名中国汉族重度抑郁症患者分为两组,预处理LDAEP强组和弱组;以LDAEP斜率(振幅作为强度函数)的中位数为界值。治疗前两组在汉密尔顿抑郁量表(HDRS)评分、年龄或性别分布方面无组间差异。治疗前记录4个强度水平(60、70、80和90分贝)的LDAEP。然后,每位患者每天服用20毫克氟西汀,持续4周。通过HDRS评估治疗反应。
在第4周时,HDRS评分下降了44.3;LDAEP强组下降了34.4%(平均差异的t值=2.584,p=0.011)。
预处理LDAEP强可预测重度抑郁症患者对选择性5-羟色胺再摄取抑制剂治疗的良好反应。