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Figure 1 Relationship of thrombus area by transesophageal echocardiography to overall complication rate and death rate. *p = 0.003; **p < 0.0001 versus thrombus area <0.8 cm²; p = 0.016 and p = 0.07 versus thrombus area <0.8 cm² and 0.8 to 1.59 cm², respectively.