PDF(Pubmed)
Abstract：
The gut is a relatively silent organ in utero but takes on a major role after birth for the absorption and digestion of feed for adequate nutrition and growth. The neonatal circulation undergoes a transition period after birth, and gut perfusion increases rapidly to satisfy the oxygen demand and consumption. If this process is compromised at any stage, preterm and fetal growth restricted infants are at particular risk of gut tissue injury secondary to hypoxia, leading to necrotizing enterocolitis. Feeding can also be a challenge in these high-risk groups due to gut dysmotility. Superior mesenteric artery (SMA) Doppler is a safe, bedside investigation that could rapidly aid clinicians with feeding strategies and in monitoring high-risk infants. This article aims to establish normal patterns of gut blood flow velocity in neonates using SMA Doppler and reviews how it might be used clinically in pathologic states.
摘要：
肠道是子宫内相对沉默的器官，但在出生后对饲料的吸收和消化起着重要作用，以获得足够的营养和生长。新生儿循环在出生后经历一个过渡期，和肠道灌注迅速增加，以满足氧气的需求和消耗。如果这个过程在任何阶段都受到损害，早产和胎儿生长受限的婴儿特别容易发生继发于缺氧的肠道组织损伤，导致坏死性小肠结肠炎.由于肠道运动障碍，喂养在这些高危人群中也可能是一个挑战。肠系膜上动脉（SMA）多普勒是一种安全的，床边调查，可以迅速帮助临床医生喂养策略和监测高危婴儿。本文旨在使用SMA多普勒建立新生儿肠道血流速度的正常模式，并回顾其在病理状态下的临床应用。
