No studies have prospectively investigated headache at onset of first‐ever ischemic stroke along with a large concurrent control group. Our aims were to answer two important questions: (i) Are headaches at stroke onset causally related to the stroke, and what are their typical clinical characteristics? (ii) What etiology of stroke is associated with these headaches?

中文翻译：

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首次缺血性中风发作时的头痛：临床特征和预测因素

没有研究与大型同期对照组一起前瞻性研究首次缺血性卒中发作时的头痛。我们的目标是回答两个重要问题：(i) 中风发作时的头痛是否与中风有因果关系，它们的典型临床特征是什么？(ii) 哪些中风病因与这些头痛有关？