REGIONAL REDISTRIBUTION OF BLOOD FLOW IN MATURE FETAL LAMB
REGIONAL REDISTRIBUTION OF BLOOD FLOW IN MATURE FETAL LAMB
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DOI：
10.1161/01.res.21.2.229
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发表时间：
1967-01-01
影响因子：
20.1
通讯作者：
HYMAN, AI
中科院分区：
文献类型：
--
作者：
CAMPBELL, AG;DAWES, GS;HYMAN, AI
对在氯醛糖麻醉下分娩的成熟胎羊的观察表明，由不同成分的气体混合物通气引起的动脉血气张力的变化，在用插管电磁流量计测量的区域全身血流中产生了相当大的变化。部分窒息与动脉压升高和股动脉和肾动脉血流减少有关;冠状动脉、颈动脉和上级矢状静脉窦血流增加主要是由于冠状动脉和脑血管舒张。用空气通风导致相反的结果。结果表明，有必要对控制成熟胎儿血管张力的局部和反射机制进行更详细的研究。
Observations on mature fetal lambs delivered under chloralose anesthesia showed that variations in arterial blood gas tensions, caused by ventilation with gas mixtures of differing composition, produced considerable changes in regional systemic blood flows measured with a cannulated electromagnetic flow-meter. Partial asphyxia was associated with a rise in arterial pressure and a reduction in femoral and renal flows; coronary, carotid and superior sagittal venous sinus flows increased owing mainly to coronary and cerebral vasodilatation. Ventilation with air caused an opposite result. The results Indicate that a more detailed study of the local and reflex mechanisms controlling vasomotor tone in the mature fetus is necessary.