近年来我国早产儿逐年增多,且孕周与出生体重呈现降低趋势,各类脑损伤随之增加,成为远期后遗症和神经发育不可忽视的问题,因此受到医务人员和社会、家庭的广泛关注。提高救治存活早产儿的生命质量,与早期诊治、后期管理及干预等多个环 In recent years, the number of premature infants in our country increases year by year, and the gestational age and birth weight show a trend of decreasing. All kinds of brain injury increase subsequently, becoming a problem that long-term sequelae and neurodevelopment can not be neglected. Therefore, it is widely concerned by medical staff, society and families. Improve the quality of life of surviving preterm children, and early diagnosis and treatment, management and intervention, such as a number of ring