Preterm infants are hospitalized in the Neonatal Intensive Care Unit (NICU) and are precociously separated from their mothers. Although developmental care interventions are meant to facilitate mother-infant bonding, physical contact is not always possible. Maternal voice exposure has been proposed as a way to foster maternal closeness and support postnatal bonding. Here we present a systematic review on maternal voice effects on preterm infants’ development. Literature search occurred on 4 databases (PubMed, Scopus, Web of Science and CINAHL). Preferred reporting items for systematic review and meta-analysis (PRISMA) guidelines have been adopted and standardized quality appraisal has been carried on. Wide differences emerged in infants’ characteristics and maternal voice exposure methods. Inconsistency emerged for physiological outcomes (e.g., heart rate variability, oxygen saturation, number of critical alarm events), whereas a robust pattern of findings emerged for feeding behaviors, as well as cognitive and neurobehavioral development. Maternal voice appears to be a non-noxious intervention, which is consistent with developmental care and which can be embedded in developmental care strategies.

早产儿在新生儿重症监护室（NICU）住院，并与母亲早熟分开。尽管发育护理干预旨在促进母婴结合，但身体接触并非总是可能的。已经提出了将孕妇的声音暴露作为提高孕妇的亲密性和支持产后结合的一种方法。在这里，我们对孕妇语音对早产儿发育的影响进行系统综述。文献检索在4个数据库（PubMed，Scopus，Web of Science和CINAHL）上进行。已采用系统评价和荟萃分析（PRISMA）指南的首选报告项目，并进行了标准化的质量评估。婴儿的特征和母亲的声音暴露方法出现了很大的差异。生理结果出现不一致的情况（例如，心率变异性，血氧饱和度，严重警报事件的数量），而对于进食行为以及认知和神经行为发育，出现了强有力的发现模式。产妇的声音似乎是一种无害干预措施，与发育护理相一致，可以嵌入到发育护理策略中。