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Editorials

Change We Can Believe In: The Hyper-Evolution of Percutaneous Coronary Intervention for Unprotected Left Main Disease With Drug-Eluting Stents

Matthew J. Price, MD; David E. Kandzari, MD and Paul S. Teirstein, MD

From the Division of Cardiovascular Diseases, Scripps Clinic and Scripps Advanced Clinical Trials, La Jolla, Calif.

Correspondence to Paul S. Teirstein, MD, 10666 North Torrey Pines Road, Maildrop S1056, La Jolla, CA 92037. E-mail pteirstein@scrippsclinic.com

Key Words: Editorials • angioplasty • stents

An extract of the first 250 words of the full text is provided, because this article has no abstract.

The initial adoption of percutaneous coronary intervention (PCI) for unprotected left main coronary artery (LMCA) obstruction was tempered by poor acute outcomes after balloon angioplasty and the potential lethality of restenosis in the left main trunk suggested by bare-metal stent registries.¹ The marked antirestenotic efficacy of drug-eluting stents (DES) ushered in a new wave of enthusiasm for unprotected LMCA intervention. However, the accumulation of robust data to guide and support clinical practice has been challenged by the relatively low prevalence of this lesion subset combined with its historical characterization as a "forbidden zone" for PCI. The DES left main database has grown from initial, small, single-center experiences^2–4 to larger multicenter registries,⁵ prospective, risk-adjusted comparisons with coronary artery bypass grafting,⁶ and most recently to small randomized clinical trials and prespecified subgroups of larger clinical trials.^7,8 Catalyzed by an ethos in interventional cardiology that embraces (1) investigation, (2) dissemination of new information through journals, conferences, and a tradition of live-case demonstration; and (3) rapid adaptation of new techniques, there has been a marked evolution and improvement of the technical approach to unprotected LMCA intervention in a remarkably short period of time. The study reported by Palmerini et al⁹ in this issue of the Circulation Cardiovascular Intervention provides further pressure on interventional cardiologists to follow a straightforward maxim: simpler is usually better.

Article see p 185

The interpretation of the studies of left main PCI with DES has been complicated by heterogeneity within study populations related to both the disease location (ostial, shaft, . . . [Full Text of this Article]

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