Proximal claudication remains a difficult diagnosis. The ankle to brachial index may be insensitive in the case of isolated hypogastric lesions. Penile pressure represents an alternative method for proximal arteries. Surprisingly, the accuracy of penile pressure measurement in detecting lesions on the arteries supplying pelvic circulation in patients suffering claudication has rarely been studied. We aimed to evaluate the diagnostic accuracy of the penile brachial index < 0.60 (penile over brachial systolic pressure ratio) to non-invasively investigate arteriographic lesions on arteries supplying the hypogastric circulation in 88 male patients referred for Fontaine stage II. The receiver operating characteristic (ROC) curve was used to define the diagnostic performance of the penile brachial index and search for a specific cut-off point in this population. Accuracy was 69.3% (95% confidence interval: 58.6-78.7) for the detection of an arterial stenosis or occlusion on at least one side. The penile brachial index
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