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Reliable diagnosis of nigrostriatal degeneration by dopamine transporter SPECT despite drug interaction with venlafaxine or bupropion
European Journal of Nuclear Medicine and Molecular Imaging ( IF 8.6 ) Pub Date : 2024-11-30 , DOI: 10.1007/s00259-024-06989-z
Ivayla Apostolova, Sabine Hellwig, Amir Karimzadeh, Susanne Klutmann, Philipp T. Meyer, Ralph Buchert

Purpose

This study examined the impact of venlafaxine and bupropion on the detection of nigrostriatal degeneration by dopamine transporter (DAT)-SPECT.

Methods

43 patients (70.7 ± 8.6y, 44% female) with [123I]FP-CIT-SPECT under venlafaxine (n = 26, 37.5-225 mg/d), bupropion (n = 16, 150 or 300 mg/d) or both (n = 1) were included retrospectively. The striatal specific [123I]FP-CIT binding ratio (SBR), its left–right asymmetry and the putamen-to-caudate ratio were transformed to z-scores and submitted to a cluster analysis for data-driven categorization.

Results

Two clusters were identified. The first cluster (37% cases) showed a Parkinson’s disease (PD)-like pattern: median striatal SBR/asymmetry/putamen-to-caudate z-score -4.5/4.9/-3.8. The second cluster (63%) showed symmetric reduction with normal intra-striatal gradient: median striatal SBR/asymmetry/putamen-to-caudate z-score -2.7/0.4/0.2. Patients with follow-up clinical reference diagnoses of neurodegenerative (n = 8) and non-neurodegenerative (n = 16) parkinsonism fell exclusively into the former or the latter cluster, respectively (p < 0.001).

Conclusion

Venlafaxine and bupropion cause uniform reduction of the striatal [123I]FP-CIT SBR that can be distinguished from PD-like reductions.



中文翻译:


尽管与文拉法辛或安非他酮存在药物相互作用,但多巴胺转运蛋白 SPECT 仍能可靠诊断黑质纹状体变性


 目的


本研究检查了文拉法辛和安非他酮对多巴胺转运蛋白 (DAT)-SPECT 检测黑质纹状体变性的影响。

 方法


回顾性纳入文拉法辛 (n = 26, 37.5-225 mg/d)、安非他酮 (n = 16, 150 或 300 mg/d) 或两者 (n = 1) 下 [123I]FP-CIT-SPECT 患者 (70.7 ± 8.6 岁,44% 女性)。纹状体特异性 [123I]FP-CIT 结合比 (SBR)、其左右不对称性和壳核与尾状核比被转换为 z 分数并提交给聚类分析以进行数据驱动的分类。

 结果


确定了两个集群。第一组 (37% 病例) 显示帕金森病 (PD) 样模式: 正中纹状体 SBR/不对称/壳核至尾状核 z 评分 -4.5/4.9/-3.8。第二组 (63%) 显示对称性降低,纹状体内梯度正常: 中位纹状体 SBR/不对称/壳核至尾状核 z 评分 -2.7/0.4/0.2。神经退行性 (n = 8) 和非神经退行性 (n = 16) 帕金森综合征的随访临床参考诊断患者分别属于前者或后一组 (p < 0.001)。

 结论


文拉法辛和安非他酮导致纹状体 [123I]FP-CIT SBR 均匀减少,可与 PD 样减少区分开来。

更新日期:2024-11-30
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