medicine : medicopsychology : traditional Chinese medicinal materials > arrive defect
Contents
No. 1
  出生缺陷是指孩子出生前,在妈妈肚子里就已经发生的形态结构,生理功能异常或代谢缺陷所致的异常,形态结构异常表现为先天畸形。如无脑儿、脊柱裂、兔唇、四肢异常等,生理功能和代谢缺陷常导致先天性智力低下(俗称“呆”、“傻”),聋、哑等异常。
No. 2
  Birth defects is the child before birth, in the womb has occurred on morphology, physiological dysfunction or metabolic defects caused by abnormal morphology differences usually congenital malformations. If there is no brain child, spina bifida, cleft lip, limb abnormalities, physiological functions and metabolic defects often lead to congenital mental retardation (commonly known as "stay", "stupid"), deaf, dumb and other abnormalities.
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百科大全
  出生缺陷
  出生缺陷是指在出生前,在胎儿时期就存在着的发育异常。这些异常有形态结构的改变和功能性的改变,后者如耳聋或一些代谢异常等,在大体形态结构上常无明显缺陷。形态结构的改变可以是体表可见的,也可以是内脏的,后者则不能从体表发现。这种形态结构改变可以分为3种类型:一种是畸形(malformation)是指胎儿有内在的异常如染色体改变、基因异常等,不论这些内在因素的改变是来自遗传原因或环境原因或二者共同造成,凡此内因改变导致的胎儿发育异常均称为畸形。另一种是变形(deformation)是指胎儿原来没有异常,本可发育成一个正常的新生儿,但由于一些异常的外来压力造成了胎儿形态的改变如子宫畸形、子宫肌瘤、多胎拥挤等造成,这种异常称为变形。第3种称为阻断(disruption)是由于已发育成的正常胎儿受到损害而致异常。如羊膜索条可以造成胎儿断肢、面裂;栓塞可致部分组织坏死脱落而缺失等。由于结构异常的预后、治疗及再发风险均不相同,应尽量鉴别可能的发病原因。
Containing Phrases
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