Wesström G, Lassvik C
Acta Paediatr Scand. 1980 May;69(3):365-70. doi: 10.1111/j.1651-2227.1980.tb07094.x.
Strain-gauge plethysmography was performed shortly after withdrawal of the catheter in 48 of 49 newborn ifnats who had undergone umbilical artery catheterization. Plethysmorgraphy was used to find a noninvasive method for diagnosing catheter-related thrombo-embolism in neonates. The results were compared with the findings at aniography. The method permits simultaneous measurements of the systolic blood pressure and of the resting and submaximal blood flow in both legs. Nine infants howed angiographic signs of total or partial occlusion in one leg, and 8 of them were investigated with plethysmorgraphy. The systolic blood pressure was signifcantly reduced in ifants with total and/or partial occlusion, but the blood flow was reduced only in infants with total occlusion. The peak flow after sugrasystolic occlusion was significantly otener delayed in infants with thrombo-embolism in the leg.
在49例接受脐动脉插管的新生儿中，48例在拔除导管后不久进行了应变片体积描记法检查。体积描记法用于寻找一种诊断新生儿导管相关血栓栓塞的非侵入性方法。将结果与血管造影的结果进行比较。该方法可同时测量双腿的收缩压以及静息和次最大血流量。9例婴儿的一条腿有血管造影显示完全或部分阻塞的迹象，其中8例接受了体积描记法检查。完全和/或部分阻塞的婴儿收缩压显著降低，但只有完全阻塞的婴儿血流量减少。腿部有血栓栓塞的婴儿，收缩期后闭塞时的峰值血流明显更常延迟。
