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2500g以下的低出生体重儿(Low birth weight in-fant,LBWI)中包含着1500g以下的极低出生体重儿(Very low birth weight infant,VLBWI)和1000g以下的超低出生体重儿(Extremely low birth weight infant,ELBWI).国际上发达国家由于正常出生体重儿死亡率已近于难以再下降,因此有足够的人力物力和财力来重视LBWI,对其中ELBWI值得救不救的问题,经过多年争论,现在已逐步趋向一致——要救.随着医学技术水平提高和设备的不断更新,即使出生体重750g以下也有约1/3可以存活,后遗症正在越来越少,500g以下的ELBWI已常有存活,最低出生体重存活者仅有280g.
Low birth weight in-fant (LBWI) of 2500g or less contains very low birth weight infant (VLBWI) of 1500g or less and Extremely low birth weight of 1000g or less weight infant, ELBWI) .In the developed countries, due to the fact that the mortality rate of normal birth weight children is hardly reduced anymore, so there is enough manpower, material resources and financial resources to pay attention to LBWI. After many years of controversy over ELBWI’s worth saving, Now has been gradually converging - to save.With the improvement of medical technology and equipment constantly updated, even if the birth weight of 750g or less about 1/3 can survive, less and less sequelae, ELBWI 500g has been the common survival , The minimum birth weight of survivors only 280g.