Chan G M, Lechtenberg E
University of Utah Health Science Center, Salt Lake City, UT 84108, USA.
J Perinatol. 2007 Jul;27(7):434-6. doi: 10.1038/sj.jp.7211768. Epub 2007 Jun 7.
The purpose of this study is to describe the processing of human milk to remove its fat content and its use in seven infants with chylothorax.
The mother's milk was centrifuged at 3000 r.p.m. for 15 min at 2 degrees C. After centrifugation, the milk separated into a solidified-fat top layer and a lower liquid portion. The fat-free liquid portion was then poured into collection cups and frozen for the patient's use at a later date. A sample of the mother's milk before and after processing was stored and analyzed for fat, sodium, potassium, calcium and zinc.
The mean fat removed was 5+/-1 g/dl (mean+/-s.d.), which was the same as the pre-fat content of the mother's milk. Seven infants with chylous pleural effusions used the fat-free human milk. All infants started on the fat-free milk after a month of age for an average of 16 days duration (7 to 34 days range). There was no reaccumulation of the chylous pleural effusions with the use of the fat-free mother's milk. Mother's milk electrolytes were similar before and after processing.
Fat-free human milk may be an important additional dietary therapy for infants with chylothorax and may add the immunologic properties of human milk that other feedings cannot provide.
本研究旨在描述去除人乳脂肪成分的处理过程及其在7例乳糜胸婴儿中的应用。
将母乳在2℃下以3000转/分钟的速度离心15分钟。离心后,乳汁分离为凝固的脂肪上层和下层液体部分。然后将无脂液体部分倒入收集杯中并冷冻,以备患者日后使用。对处理前后的母乳样本进行储存,并分析其中的脂肪、钠、钾、钙和锌含量。
平均去除的脂肪量为5±1克/分升(平均值±标准差),与母乳的脂肪前含量相同。7例乳糜性胸腔积液婴儿使用了无脂人乳。所有婴儿在1月龄后开始使用无脂牛奶,平均持续16天(范围为7至34天)。使用无脂母乳后,乳糜性胸腔积液未再积聚。处理前后母乳中的电解质相似。
无脂人乳可能是乳糜胸婴儿重要的额外饮食疗法,并且可能具备其他喂养方式无法提供的人乳免疫特性。