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Criteria from intra‐arterial femoral artery pressure measurements combined with reactive hyperaemia to assess the aorto‐iliac segment; A prospective study

Direct femoral artery blood pressure measurements combined with reactive hyperaemia (FAP study) were performed on 50 extremities (45 patients) with multilevel arterial occlusive disease of the lower extremities. In a previous retrospective study we established criteria for detection of significant aorto‐iliac occlusive disease. These criteria were used in a prospective way in this study. Twenty‐seven extremities were subjected to a proximal and 23 extremities to a distal reconstruction. The half‐year postoperative results were evaluated. The criteria used were 86 per cent sensitive, 100 per cent specific and 93 per cent accurate in relation to predicting the postoperative haemodynamic result. The positive predictive value was 100 per cent and the negative predictive value 89 per cent. The criteria are presented and compared with data from the literature. It is concluded that FAP studies are a simple and excellent way to assess the aorto‐iliac segment and to predict the outcome of a reconstruction in multilevel arterial occlusive disease.