过去,一旦出现第一个症状,中风患者必须在六小时内接受挽救生命的治疗。但新的 指导方针 美国心脏协会和美国中风协会建议,时间窗口可以延长至症状出现后长达 24 小时。

“The number one message we want to get out is that time absolutely matters if you’ve had a stroke.  The faster someone can get to a hospital the better our chances are to reduce potential brain damage,” Dr. Lakshmi Warrior, Associate Medical Director of Stroke at Cook County Health (CCH) stressed.  “So you should call 911 immediately as soon as you recognize any of the warning signs of stroke.”

尽管如此,沃里尔博士表示,基于最近发表的研究的新指南对中风患者来说非常令人鼓舞。

“It suggests we have more options for preventing brain damage beyond that narrow window,” Dr. Warrior said.  “And while not every stroke patient may be a candidate for those interventions, it still gives doctors more options than we used to have to save lives.  But none of that matters if someone having a stroke doesn’t call 911 immediately, so that’s still the number one priority for people.”

An ischemic stroke—which accounts for the majority of strokes—happens when blood vessels to the brain become blocked or narrowed by a clot, cutting off blood flow to the brain.  If this blood flow is not restored, it may lead to permanent damage to the brain.

The time from symptom onset to presentation is very important when considering what treatments can be used.  Tissue plasminogen activator (tPA), also known as the clot busting drug, must be given within four and a half hours of the onset of stroke.  In patients with severe stroke symptoms found to have a blood clot in one of the large blood vessels of the brain, the clot can be physically removed if the patient can be treated within 6 hours of onset of symptoms.  The physical removal of a clot is called an endovascular procedure or a mechanical thrombectomy.

“In a breakthrough for stroke patients, two trials (DAWN and DEFUSE 3) have shown a clear benefit to extending the window for using mechanical thrombectomy for certain patients to up to 16-24 hours,” said Dr. Warrior, who added that CCH follows the new guidelines.  “This gives us hope to be able to treat more patients with stroke symptoms than ever before.”

fast-stroke

May is Stroke Awareness Month.  Do you know the warning signs for a stroke?

根据疾病预防与控制中心,中风的症状可能包括:

  • 突然的麻木或面部、手臂或腿部无力,尤其是身体的一侧。
  • 突然的困惑、言语困难或理解言语困难。
  • 突然的视力障碍在一只或两只眼睛中。
  • 突然的走路困难、头晕、失去平衡或缺乏协调。
  • 突然的严重头痛没有已知的原因。

On average, a stroke patients loses 1.9 million brain cells every minute a stroke goes untreated. So if you have signs or symptoms of stroke, call 911 immediately.  Remember, time is brain.

 

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