Why the study?
Stenting across distal left main bifurcation lesions with vessel diameter mismatch increases thrombosis and restenosis risks, but data on technical solutions remain sparse.
How can vessel diameter mismatch be effectively managed during left main bifurcation stenting?
How can vessel diameter mismatch be effectively managed during left main bifurcation stenting?
Specific stenting techniques and devices can effectively manage vessel diameter mismatch during complex left main bifurcation PCI.
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Technical solutions for mismatched LM bifurcations merit evaluation; leaves open need for prospective validation before practice change.
Left main coronary artery percutaneous coronary intervention is particularly complex when stenting across the distal bifurcation is required in the presence of a diameter mismatch between the proximal main and distal branches. A suboptimal procedural result increases the risk of thrombosis and restenosis. Considering the paucity of data published on this topic, our objective was to provide technical solutions to deal with this complex anatomy. We described four cases showing the use of devices and techniques which allowed us to overcome a diameter discrepancy between adjacent coronary segments: (1) self-expanding nitinol stent; (2) stent platform with noteworthy expansion capacity; (3) the 'extended skirt' technique; (4) the 'trouser-leg' technique. In conclusion, the use of specific strategies and devices allows a safe and effective approach to be used to perform treatment that respects the coronary anatomy, and to optimize percutaneous coronary intervention results in complex scenarios.
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Dall’Ara et al. (2022) studied this question.
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