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高危儿广义上指已发生和可能发生危重现象的新生儿,以及在胎儿期、围产期、新生儿期受各种高危因素的危害,已发生或可能发生危重疾病的特殊新生儿;狭义上指在新生儿重症监护病房(NICU)接受监护和治疗的患儿(《儿童保健学》第4版、《诸福棠实用儿科学》第7版)。产科和新生儿危重症治疗技术的发展促使高危儿的存活率较过去显著增高,孕26、27周出生的早产儿存活率分别可达
High-risk children in broad sense refers to the occurrence and possible risk of newborns, as well as in the fetal, perinatal, neonatal period by a variety of risk factors, the occurrence of or may have a critical illness special newborn; narrow sense Refers to children undergoing custody and treatment in NICU (Child Health 4 rd edition, Subtopics Practical Pediatrics 7th Edition). The development of obstetric and neonatal critically ill treatment technology has led to a marked increase in the survival rate of high-risk infants compared with the past, and the survival rates of preterm infants born at 26 and 27 weeks of pregnancy are respectively up to