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Figure 1 The graphs refer to the six Group 1 and six Group 2 patients in whom paired blood samples from great cardiac vein (GCV) and aorta were obtained throughout the study. Blood oxygen saturation (sO2) significantly increased in the GCV 1 min after balloon deflation (t1) compared with baseline (t0); no increase was observed in Group 2 patients. In Group 1 patients, differences between concentration of conjugated dienes (CD) in GCV and aorta (delta CD) consistently increased 1 (t1) and 5 min (t5) after balloon deflation and were still elevated at 15 min (t15) compared with t0; differences between concentration of hydroperoxides (ROOHs) in GCV and aorta (delta ROOHs) showed similar changes. In Group 2 patients, delta CD and delta ROOHs did not change throughout the study. Differences between plasma antioxidant capacity (TRAP) values in GCV and aorta (delta TRAP) did not change at t1, t5 and t15 in both groups. Thick lines represent mean values; dashed lines represent individual data. *p < 0.01 vs. baseline.
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