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Time course and extent of improvement of dysfunctioning myocardium in patients with coronary artery disease and severely depressed left ventricular function after revascularization: correlation with positron emission tomographic findings

Felix Haas, MD^*, Norbert Augustin, MD^*, Klaus Holper, MD^*, Michael Wottke, MD^*, Christoph Haehnel, MD, MPH^*, Stephan Nekolla, PhD, Hans Meisner, MD^*, R.üdiger Lange, MD^* and Markus Schwaiger, MD, FACC

^* Deutsches Herzzentrum Muenchen, Department of Cardiovascular Surgery, Muenchen, Germany
Technische Universitaet Muenchen, Department of Nuclear Medicine, Muenchen, Germany

View larger version (26K): [in a new window]   Figure 1 Functional changes for NN segments over time. Numbers of the segments are given and are related to the values before. = improvement by at least one wall motion score; = maintained function; = deterioration by at least one wall motion score.

View larger version (22K): [in a new window]   Figure 2 Functional changes for MM segments over time. Numbers of the segments are given and are related to the values before. = improvement by at least one wall motion score; = maintained function; = deterioration by at least one wall motion score.

View larger version (16K): [in a new window]   Figure 3 Functional improvement in mean wall motion (wm) scores of MM myocardium, NN myocardium and M myocardium (scar tissue) are expressed as the mean value ± SEM. In contrast to viable myocardium, only minor changes were seen for scar tissue (M). ns = not significant.

View larger version (15K): [in a new window]   Figure 4 Time course and percentage of complete functional recovery of MM and NN segments with severe wall motion (wm) abnormalities preoperatively.