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打呼噜者:小心中风!
http://www.100md.com 2001年7月26日 家庭医生医疗保健网
     最近召开的国际中风大会上发表的一项新研究表明:睡眠不好的人中风的危险会增加。经常打呼噜的人,夜间睡眠超过八小时的人和白天昏昏欲睡的人,中风危险比较大。出现这种情况可能与呼吸暂停有关,呼吸暂停是处于睡眠状态的人们呼吸停止,进而不得不醒来喘气呼吸。

    尽管打呼噜声是许多家庭的夜间进行曲,然而,严重的打呼噜习惯并不仅仅是恼人,它会增加出现中风的危险。打呼噜可能就是引发中风的一个危险性因素,因为打呼噜时进入大脑的氧气量会减少。

    接近40%的中风是发生在患者熟睡时或醒后一小时内。因此,医生们怀疑严重的打呼噜现象和中风之间可能会有密切的联系。加拿大多伦多心脏病及中风基金会的发言人道格拉斯·布莱德理博士指出,如果患者夜间打鼾200-400次,那么他的血压就会明显地升高。高血压是引发中风的已知危险因素。

    据统计,有10%的成年人受累于呼吸暂停症,但他们并不知道,因此很少有人采取相应的治疗措施,如手术或选择使用呼吸装置。目前最行之有效的治疗方法就是使用正向空气压入系统,就是患者在睡觉时戴一个装有气泵的面具。
, 百拇医药
    医生们正竭力寻找治疗呼吸暂停的方法。越来越多的证据表明,要防止中风的发生,重要的是保证晚间睡眠良好。

    Evidence of Snoring-Stroke Link

    Snore a lot? That may increase your risk of having a stroke. See why.

    It‘s the music of the night in many households.But severe snoring may be more than a nuisance.

    It may be a risk factor for stroke, because snoring can reduce the amount of oxygen that reaches the brain.
, 百拇医药
    A new study presented at the International Stroke Conference last month found that poor sleep might increase your chances of having a stroke.

    The study found that people who slept more than eight hours a night, those who were drowsy during the day and those who snored had a much higher chance of having a stroke.

    All these are possible signs of sleep apnea, a condition in which people actually stop breathing and wake up gasping for breath.
, 百拇医药
    "It‘s a startle mechanism," explains Dr. Douglas Bradley, a spokesman for the Canadian Heart and Stroke Foundation, Toronto. "And if they do it 200 to 400 times a night, [their] blood pressure is going to be markedly elevated."

    High blood pressure is a known risk factor for stroke. Between that and the fact that nearly 40 percent of strokes happen while patients are sleeping or within an hour of their waking, doctors are beginning to suspect a very strong link between severe snoring and stroke.
, http://www.100md.com
    Treatment Is Available

    "Probably, sleep apnea is present in many patients long before a stroke, and they are not aware it‘s something unusual," explains Dr. Vlasta Hajek, a rehabilitation specialist at the Toronto Rehabilitation Institute, which has many stroke patients.

    About 10 percent of adults suffer from sleep apnea, but only a small percentage ever get it treated, with either surgery or breathing devices.

    The most common method of treatment is a positive airway pressure system, which is essentially an air pump with a mask that a sufferer wears while sleeping.

    Doctors expect that people will seek out treatment for sleep apnea, now that there‘s more evidence that a key way to prevent strokes might be a good night‘s sleep., 百拇医药