Palm T, Husum B
Anesth Analg. 1978 Jul-Aug;57(4):453-6. doi: 10.1213/00000539-197807000-00015.
Blood pressure was measured in both great toes using strain-gauge plethysmography in 100 healthy persons aged 18 to 43 before and during successive compression of the dorsalis pedis artery, the posterior tibial artery, and both arteries at the same time. In 54 (27 percent) of 200 feet, successive compression of the dorsalis pedis and the posterior tibial arteries produced no decrease in pressure in the great toe. In 47 of the feet, toe pressure decreased significantly only after compression of the posterior tibial artery, and in 65 of the feet toe pressure decreased significantly only after compression of the dorsalis pedis artery. In 34 of the feet, toe pressure decreased significantly after compression of each of the arteries. Thus in 99 (50 percent) of 200 feet, compression of the dorsalis pedis artery decreased the pressure in the great toe significantly, and in 4 feet the pressure decreased below 40 mm Hg. When both arteries were simultaneously compressed, 69 feet showed detectable blood pressure in the great toe. Attempts to evaluate adequacy of collateral circulation by pressure blanching of the great toe prior to artery compression and then observing capillary refilling time upon release of toe compression proved unreliable.
在100名年龄在18至43岁的健康人身上，使用应变片体积描记法分别测量了两个大脚趾的血压，测量时间为足背动脉、胫后动脉以及同时对这两条动脉进行连续压迫之前和期间。在200只脚中，有54只（27%）在对足背动脉和胫后动脉进行连续压迫时，大脚趾的血压没有下降。在47只脚中，只有在压迫胫后动脉后，脚趾血压才显著下降；在65只脚中，只有在压迫足背动脉后，脚趾血压才显著下降。在34只脚中，每条动脉受压后，脚趾血压都显著下降。因此，在200只脚中的99只（50%），压迫足背动脉会使大脚趾的血压显著下降，有4只脚的血压降至40毫米汞柱以下。当同时压迫两条动脉时，69只脚的大脚趾可检测到血压。在动脉压迫前通过对大脚趾进行压力变白试验，然后在解除脚趾压迫后观察毛细血管再充盈时间来评估侧支循环是否充足的尝试被证明是不可靠的。
