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Our approach for intermediate LM lesions. Current approach to intermediate left main lesions in our center. The authors have a low threshold to use IVUS at any stage in the evaluation and treatment of LM lesions because of its proven added value as explained in the text. LM: left main; iFR: instantaneous wave-free ratio; FFR: fractional flow reserve; IVUS: intravascular ultrasound; ACS: acute coronary syndrome; CTO: chronic total occlusion; MLA: minimal lumen area; FU: follow-up.
