Hsu C H, Lee H C, Huang F Y
Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan.
J Ultrasound Med. 1994 Jan;13(1):15-8. doi: 10.7863/jum.1994.13.1.15.
We used transcutaneous duplex Doppler ultrasound to measure superior mesenteric artery and celiac artery blood flow velocity in 45 normal healthy newborn infants. Doppler indices of PSV, TAMV, EDV, and PI were measured immediately before and after feeding at 15 minute intervals up to 75 minutes. Maximal changes were compared with preprandial baseline values. There were no significant differences between the preprandial and postprandial blood pressures and heart rates. In the superior mesenteric artery the PSV, TAMV, and EDV rose progressively and peaked 30 minutes after feeding in both the milk-fed group and the 5% glucose, water-fed group over baseline (73 versus 41% and 110 versus 63%, 130 versus 100%) (P < 0.05). The PI decreased significantly in the milk-fed group only. There were no significant changes in any blood flow velocity parameters derived from the celiac artery. We conclude that duplex ultrasonography provides a noninvasive means of studying the reactivity of the splanchnic arterial circulation to different stimuli. The chemical composition of the meal is a significant factor determining postprandial mesenteric hyperemia.
我们使用经皮双功多普勒超声测量了45例正常健康新生儿的肠系膜上动脉和腹腔动脉血流速度。在进食前及进食后，每隔15分钟测量一次PSV、TAMV、EDV和PI的多普勒指数，直至75分钟。将最大变化与餐前基线值进行比较。餐前和餐后的血压及心率无显著差异。在肠系膜上动脉，牛奶喂养组和5%葡萄糖水喂养组的PSV、TAMV和EDV均逐渐升高，并在进食后30分钟达到峰值，超过基线水平（分别为73%对41%、110%对63%、130%对100%）（P < 0.05）。仅牛奶喂养组的PI显著降低。腹腔动脉的任何血流速度参数均无显著变化。我们得出结论，双功超声检查提供了一种无创方法来研究内脏动脉循环对不同刺激的反应性。餐食的化学成分是决定餐后肠系膜充血的一个重要因素。
