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This study is a prospective validation of 6 mm2 as a minimum lumen area (MLA) cutoff value for revascularization of left main coronary artery (LMCA) lesions.Lesions involving the LMCA are prognostically relevant. Angiography has important limitations in the evaluation of LMCA lesions with intermediate severity. An MLA of 6 mm2 assessed by intravascular ultrasound has been proposed as a cutoff value...
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