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Myocardial oxygen saturation (SO2%) following 5 min (red), 15 min (yellow) and 30 min (green) of ischemia following clamping of the left descending coronary artery and reperfusion with decreased baseline myocardial oxygen saturation after 15 and 30 min of ischemia indicating an ischemia-induced damage to the myocardium (Knobloch K, unpublished data).
