缺氧缺血性脑病是什么病

2025-03-28 10:56:03
推荐回答(2个)
回答1:

缺氧缺血性脑病是由各种原因引起的脑组织缺血缺氧所导致的脑部病变,最常见的是新生儿缺氧缺血性脑病,但是也可以发生在其他年龄段。新生儿缺氧性脑病是围生期新生儿由于缺陷而引起的脑部病变,常见的原因有各种原因导致的胎儿宫内窘迫,比如脐带绕颈、羊水异常等等,也常见于分娩过程以及出生后的窒息缺氧,少数可见于其他原因引起的脑损害。
该病多发生于足月儿,但是也可以发生在早产儿,分娩时胎心可以增快或第二产程延长,羊水被胎粪污染,出生时有窒息史,复苏后有意识,肌张力、呼吸节律反向等方面改变,甚至出现惊厥。非新生儿缺血缺氧性脑病常见于各种原因引起的严重的脑组织缺血缺氧,其常见的呼吸心跳骤停,也可见于休克、一氧化碳中毒、癫痫持续状态、重症肌无力等等。

回答2:

缺氧缺血性脑病是由于各种围生期因素引起的脑缺氧或缺血而形成的常见的脑损伤,主要表现为意识状态及肌张力变化。根据病情变化可分为轻、中、重度。轻、中度表现为兴奋或迟钝,肌张力正常或减低。重度可有昏迷、肌张力松软、惊厥频繁等。多伴有严重的后遗症如脑瘫、癫痫、学习困难等。
围产期窒息是本症的主要病因。凡是造成母体和胎儿间血液循环和气体交换障碍使血氧浓度降低者均可造成窒息。由宫内窒息引起者占50%;娩出过程中窒息占40%;先天疾病所致者占10%。

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