丛集性头痛的脑血流研究

CEREBRAL BLOOD FLOW IN CLUSTER HEADACHE

用ＴＣＤ脑血流分析技术对丛集性头痛患者丛集期之无头痛时与头痛时的脑血流速度（ＭＦＶ）进行了研究。患者共１８例，均为男性，平均年龄３０．０±５．６岁。正常对照组也均为男性，平均年龄３２．８±９．９岁。以ＴＣＤ测定了颅内双侧ＭＣＡ、ＡＣＡ、ＰＣＡ以及ＢＡ的ＭＦＶ。结果发现：（１）无头痛时，患者诸动脉之ＭＦＶ与正常对照组比较均无显著差异；（２）头痛时，其痛侧ＭＣＡ之ＭＦＶ与非头痛侧的ＭＦＶ比较显著升高（Ｐ＜０．０１），ＡＣＡ则相反，即显著降低（Ｐ＜０．０１）；头痛时，头痛侧与该侧非头痛时比较，头痛时ＭＣＡ的ＭＦＶ显著高于非头痛时（Ｐ＜０．０１），而ＡＣＡ则相反（Ｐ＜０．０１）。结果表明：丛集性头痛在丛集期头痛时颈内动脉系统之主要分支确有血管收缩，也有扩张的表现。并对其发病机理进行了探讨。

Cerebral blood flow was studied in 18 male cluster headache patients with an average age of 32.8±9.9(SD)Years. During headache-free perind no significant changes of mean flow velocity(MFV)were found in cerebral arteries(ACA 、MCA、PCA and BA)as compared with normal controls.During headache peried,the MFV of MCA on the headache side was significantly higher as compared with that on the non-headache side,while the MFV of ACA on the headache side was significantly lower.The MFV of MCA on the headache side during headache period was significantly higher than that during headache-free period;on the contrary,the MFV of ACA was significantly lower.The pathogenesis of cluster headache was discussed.