偏头痛的发病过程简述

<p style="margin-top: 0px; margin-bottom: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;; white-space: normal; text-indent: 2em; text-align: left;"><span style="font-size: 18px;">因为偏头痛患者遗传基因的缘故，在经历了诱因事件之后（也可能是饮食、也可能是环境、也可能是情绪），大脑中会出现称为“皮层扩散抑制”的现象，这个现象是由巴西神经生理学家阿里斯蒂德·莱昂 (Aristides Leão) 发现的。</span></p><p style="margin-top: 0px; margin-bottom: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;; white-space: normal; text-indent: 2em; text-align: left;"><span style="font-size: 18px;">可以形象的理解为一道非常缓慢、从大脑后部向大脑前部扩散的生物电信号，速度每分钟大约只有 1 或 2 毫米（低于每分钟十分之一英寸）。当它经过大脑的一些功能区域时，就会让偏头痛疼友们感受到各种各样的前驱症状，比如视觉光环、肢体麻木刺痛、失语、脑雾等。</span></p><p style="margin-top: 0px; margin-bottom: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;; white-space: normal; text-indent: 2em; text-align: left;"><span style="font-size: 18px;">然后会引起脑干产生反应，导致绕满脑血管的三叉神经产生应激反应，血管的炎症就是其中一种，疼友们感到的血管跳动或搏动性的头痛，就是由此而来。</span></p><p style="margin-top: 0px; margin-bottom: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;PingFang SC&quot;; white-space: normal; text-indent: 2em; text-align: left;"><span style="font-size: 18px;">所以呢，治疗偏头痛的最佳时机，就是在你感到前驱症状时、头痛发作之前。这时用药的是比较合适的时机，而且有希望能完全避免一次发作；如果错过了，头已经完全开始痛，可能药效就没那么好甚至多吃几片也什么效果。</span></p><p style="margin-top: 0px; margin-bottom: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;PingFang SC&quot;; white-space: normal; text-indent: 2em; text-align: center;"><span style="font-size: 18px;"><img src="/uploads/ueditor/20230321/95105910ced2893c4abc78f272b59954.png" title="95105910ced2893c4abc78f272b59954.png" alt="95105910ced2893c4abc78f272b59954.png"/></span></p><p><br style="text-indent: 2em; text-align: left;"/></p>