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中国重度抑郁症患者听觉诱发电位的响度依赖性及对抗抑郁药的反应

Loudness dependence of the auditory evoked potential and response to antidepressants in Chinese patients with major depression.

作者信息

Lee Tien-Wen, Yu Younger W Y, Chen Tai-Jui, Tsai Shih-Jen

机构信息

Department of Psychiatry, Tzu Chi General Hospital, Hualien City.

出版信息

J Psychiatry Neurosci. 2005 May;30(3):202-5.

Abstract

OBJECTIVE

To investigate the loudness dependence of the auditory evoked potential (LDAEP) in predicting response to treatment for major depression.

METHODS

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.

RESULTS

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).

CONCLUSION

Strong pretreatment LDAEP predicted a favourable response to treatment with a selective serotonin reuptake inhibitor in patients with major depression.

摘要

目的

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。

方法

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。

结果

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)。

结论

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。

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