Transcutaneous @entity26 pressure measurements on the buttocks during exercise to detect proximal XXXX : comparison with arteriography.

@entity1 @entity1987 @entity63 @entity26 @entity2790
BACKGROUND: We sought to identify whether transcutaneous @entity26 tension (tcPo2) measurements could be used to noninvasively detect lesions in the arterial network supplying blood flow to the hypogastric circulation. METHODS AND RESULTS: A study was undertaken in vascular @entity1 with suspected (PC, n=43) and @entity2790 ( @entity2790 , n=34) proximal @entity63 . TcPo2 was measured on both buttocks and with a chest reference electrode. Arteriography on the right or left side was positive for stenoses (> or =75%) or occlusion of one or more of the following arteries: the aorta, the common iliac arteries, or the internal iliac arteries. The arteriography was compared with the resting tcPo2 values (REST) and with the @entity1987 ( @entity1987 ) and maximal change from rest normalized to eventual chest changes (DROP) recorded during or after a treadmill test. REST, @entity1987 , and DROP were, respectively, as follows in positive versus negative arteriograms (mean+/-SD; in mm Hg): 80.2+/-10.9 versus 78.6+/-11.5 (P>0.05), 55.2+/-20.0 versus 69.9+/-15.8 (P<0.001), and -31.8+/-17.6 versus -9.5+/-6.4 (P<0.0001) in PC and 78.9+/-14.0 versus 80.5+/-14.3 (P>0.05), 64.4+/-21.0 versus 75.1+/-14.6 (P<0.02), and -24.1+/-13.5 versus -8.7+/-4.8 (P<0.0001) in @entity2790 . In PC and @entity2790 respectively, with a cutoff point of -16 and -15 mm Hg, DROP showed, respectively, 83%/82% and 79%/86% sensitivity/specificity in the diagnosis of positive arteriograms. CONCLUSIONS: Proximal @entity63 is a frequent finding in vascular @entity1 . TcPo2 measurement on the buttocks during exercise is a sensitive and specific indicator for lesions in the arterial tree toward the hypogastric circulation. Potentially it could objectively assess the response to endovascular or surgical approaches to iliac lesions.
