JAMA Pediatr:增加肠内蛋白摄入并不能增强母乳喂养早产儿的生长

2017-01-18 MedSci MedSci原创

目前可用的商业强化剂中提供的蛋白质可能不足以满足极度早产儿的要求;此外,人乳中的蛋白质和能量含量可能会导致不理想的早期生长发育和个体差异。来自德国的研究人员开展了一项研究,该研究的目的是在主要母乳喂养的早产儿中,不同水平的肠内蛋白对于生长发育的效果。这项随机临床和部分盲性单中心试验在德国的新生儿三级转诊中心进行。研究人员于2012年10月至2014年10月期间招募了60名早产儿(妊娠<32周

目前可用的商业强化剂中提供的蛋白质可能不足以满足极度早产儿的要求;此外,人乳中的蛋白质和能量含量可能会导致不理想的早期生长发育和个体差异。

来自德国的研究人员开展了一项研究,该研究的目的是在主要母乳喂养的早产儿中,不同水平的肠内蛋白对于生长发育的效果。

这项随机临床和部分盲性单中心试验在德国的新生儿三级转诊中心进行。研究人员于2012年10月至2014年10月期间招募了60名早产儿(妊娠<32周,出生体重<1500g),这些婴儿为173名符合条件的婴儿中35%的婴儿。平均(四分位数范围[IQR])出生时的胎龄为29.9(28.7-31.2)周。所有分析在意向治疗人群中进行。

研究人员将婴儿随机分配至较低蛋白组(商业人乳强化剂加1g牛奶蛋白/100mL的母乳;n=30)或较高蛋白组,这些婴儿的平均(IQR)出生后年龄为7(6-8)天。较高蛋白组婴儿(n=30)接受标准化的高蛋白补充(研究强化剂加1.8g牛奶牛蛋白/100mL的母乳[n=15])或基于给予母乳的蛋白质和脂肪含量的个体化高蛋白补充(n=15)。研究干预平均持续(IQR)41(30-57)天,直到确定出院计划。

该研究的主要结果是从出生到干预结束体重的增加(g/kg/d)。

该研究共包括2012年10月至2014年10月招募的60名早产儿(妊娠<32周,出生体重<1500 g),33名女孩。出生时的平均(IQR)胎龄为29.9(28.7-31.2)周。人口学特征和医院病程在两组中相似,出生体重在低蛋白组中为580至1495g,在高蛋白组中为490至1470g。较低蛋白组和较高蛋白组的体重增加相似:较低蛋白组的平均值(95%CI)为16.3g/kg/d(15.4-17.1g/kg/d)vs 较高蛋白组为16.0g/kg/d(0.4-0.7g/kg/d)(P=0.70)。头围和小腿纵向生长也是类似的,与母乳提供的肠内营养量比例也是类似的:母乳的平均(IQR)比例,较低蛋白组为92%(79%-98%) ,较高蛋白组为94%(62%-99%)(P=0.89)。

相对于平均摄入量为4.3g/kg/d,蛋白质摄入量增加至0.6g/kg/d没有进一步增强平均体重为1200g极度早产婴儿的生长。这可能意味着肠内蛋白质摄入量上限效应对于其对生长的影响。

原始出处:

Christoph Maas,Michaela Mathes,Christine Bleeker,et al.Effect of Increased Enteral Protein Intake on Growth in Human Milk–Fed Preterm Infants,JAMA Pediatr,2017.1.18

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    2017-05-05 feather89
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    2017-01-20 villahu