A new method for the prediction of peripheral vascular resistance from the preoperative angiogram.
A new method for the prediction of peripheral vascular resistance from the preoperative angiogram.
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一种根据术前血管造影预测外周血管阻力的新方法。
DOI：
10.1067/mva.1985.avs0020703
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发表时间：
1985
影响因子：
4.3
通讯作者：
Heeren,T
中科院分区：
文献类型：
--
作者：
LaMorte,WW;Menzoian,JO;Sidawy,A;Heeren,T
术前血管造影被广泛用于评估腹股沟下搭桥术前的血流量，但传统的血管造影评分方法(根据胫骨未闭血管的数量进行0、1、2或3)与外周血管阻力的测量相关性较差。我们对39例择期行股动脉旁路移植术的患者进行了术前血管造影检查，并对4个参数(胫前动脉和胫后动脉[AT和PT]、腓动脉[PER]和足底弓[ARCH])分别进行了0、1或2的评分。然后检查这些评分与每个患者在手术时测量的外周血管阻力之间的相关性。多元线性回归表明，AT、PT和ARCH的得分与观察到的阻力显著相关，但每一分得分与观察到的阻力无关。AT、PT和ARCH分值的多元线性回归表明，可以从公式中预测阻力：IN(阻力[毫米汞/毫升/分钟])=0.786−0.268(AT)−0.25(PT)−0.358(ARCH)，r=0.78，P<；0.001。这种关系预测耐药性的能力是通过将患者群体根据他们在手术中观察到的耐药性分为两个大致相等的组来测试的。当以这种方式测试时，该方程的灵敏度为88%，特异度为82%。这些发现表明，术前血管造影可以以一种简单而明确的方式进行分级，从而可以合理地预测外周血管阻力。(J VASCSURG1985；2：703-8.)
The preoperative angiogram is widely used to estimate runoff prior to infrainguinal bypass grafting, but the traditional method of angiographic scoring (0, 1, 2, or 3 based on the number of patent tibial vessels) correlates poorly with measurements of peripheral vascular resistance. We assigned a score of 0, 1, or 2 to each of four parameters (anterior and posterior tibial arteries [AT and PT], peroneal artery [PER], and plantar arch [ARCH]) on the preoperative angiograms of 39 patients admitted for elective femoral bypass grafting. These scores were then examined for their ability to correlate with the peripheral vascular resistance measured in each patient at the time of surgery. Multiple linear regression suggested that the scores assigned to the AT, PT, and ARCH were significantly correlated with observed resistance, but the PER subscore was not. Multiple linear regression of the AT, PT, and ARCH subscores suggested that resistance could be predicted from the equation: In(Resistance [mm Hg/ml/min]) = 0.786 − 0.268(AT) − 0.25(PT) − 0.358(ARCH), for which r = 0.78 and p < 0.001. The ability of this relationship to predict resistance was tested by a division of the patient population into two roughly equal groups based on their observed resistance at surgery. When tested in this fashion, this equation had a sensitivity of 88% and a specificity of 82%. These findings suggest that the preoperative angiogram can be graded in a simple, yet unambiguous way, which allows a reasonable prediction of peripheral vascular resistance. (J VASCSURG1985;2:703-8.)