Optical coherence tomography-guided left main stem stenting: A new approach?

摘要

An 83-year-old man was referred for left main coronary artery (LMCA) stent-ing (Fig. 1 A). After predilation, a 3.5 x 16-mmPromus? drug-elutingstent (Boston Scientific Corporation; Natick, Mass) was deployed across the distal LMCA at a pressure of 16 atm (estimated diameter, 3.8 mm) (Fig. IB). Optical coherence tomography (OCT) was performed after stent deployment (Fig. 1C). This measured the mean vessel diameter at 3.8 mm (area, 11.8 mm2) but, importantly, showed clear proximal malapposition of stent struts in the distal LMCA of up to 290 um (Fig. 1C).