Pietilä J P, von Smitten K, Sundell B
Department of Plastic Surgery, Helsinki University, Central Hospital, Finland.
Scand J Plast Reconstr Surg Hand Surg. 1987;21(2):145-7. doi: 10.3109/02844318709078093.
Laser Doppler flowmetry and transcutaneous oximetry were compared regarding their speed and accuracy in detecting occlusion of the artery of an experimental rabbit ear pedicle flap. The laser Doppler flowmeter showed a significant decrease in flow and the transcutaneous oximeter showed a significant decrease in oxygen tension within one minute after occlusion of the artery. A significant increase in flow was observed within one minute, and a significant increase in oxygen tension readings was observed one minute after the artery was opened. A steady state after opening the artery was reached sooner for the laser Doppler flowmeter readings. This study suggests that laser Doppler flowmetry and transcutaneous oximetry are equally fast and accurate in detecting changes in blood flow to a pedicle graft. These methods also have equally good reproducibility. Repeated clampings within a 30 min period did not affect the measured parameters.
比较了激光多普勒血流仪和经皮血氧测定法在检测实验性兔耳蒂皮瓣动脉闭塞时的速度和准确性。在动脉闭塞后一分钟内，激光多普勒血流仪显示血流显著减少，经皮血氧测定仪显示氧分压显著降低。在动脉开放后一分钟内观察到血流显著增加，一分钟后观察到氧分压读数显著增加。激光多普勒血流仪读数在动脉开放后更快达到稳定状态。本研究表明，激光多普勒血流仪和经皮血氧测定法在检测蒂状移植物血流变化方面同样快速且准确。这些方法也具有同样良好的可重复性。在30分钟内重复夹闭不影响测量参数。
