Hedén P, Eriksson E
Department of Plastic Surgery, Karolinska Hospital, Stockholm, Sweden.
Scand J Plast Reconstr Surg Hand Surg. 1989;23(1):1-9. doi: 10.3109/02844318909067501.
Twenty-two island skin flaps based on the deep circumflex iliac vessels were elevated in pigs. A comparative study of Laser Doppler flowmetry (LDF) and electromagnetic flowmetry (EMF) was undertaken. Flow values were compared during selective arterial and venous occlusion, nerve stimulation and intra-arterial noradrenaline or papaverine injection. The effectiveness of flap temperatures and blood gas data in monitoring vascular occlusions was also investigated. Similar and simultaneous responses in LDF and EMF values were noted during the different experimental manipulations, but for single simultaneous LDF/EMF observations from different animals the correlation coefficients were poor. The accuracy of EMF measurements in monitoring total flap inflow was confirmed by a high correlation with total venous outflow values. Major vascular occlusions also resulted in significant changes in the flap temperatures, and in the flap blood gases.
在猪身上掀起了22个以旋髂深血管为蒂的岛状皮瓣。进行了激光多普勒血流仪（LDF）和电磁血流仪（EMF）的对比研究。在选择性动脉和静脉阻断、神经刺激以及动脉内注射去甲肾上腺素或罂粟碱期间比较血流值。还研究了皮瓣温度和血气数据在监测血管阻塞方面的有效性。在不同的实验操作过程中，LDF和EMF值出现了相似且同步的反应，但对于来自不同动物的单次同时LDF/EMF观察，相关系数较低。通过与总静脉流出值的高度相关性证实了EMF测量在监测皮瓣总流入方面的准确性。主要血管阻塞也导致皮瓣温度和皮瓣血气发生显著变化。
