[Efficacy of stenting for selective unprotected left main coronary artery disease: two-year follow-up of 416 patients].

Objective: To evaluate the safety and effectiveness of stenting for selective unprotected left main coronary artery (ULMCA) disease.
Methods: The clinical data of 416 patients with ULMCA who underwent selective percutaneous coronary intervention (PCI) were analyzed.
Results: In 291 of the 416 patients (70.0%), the ULMCA lesions were located in the distal bifurcation site. A total of 503 stents were successfully deployed in 414 patients and the mean stent number was (1.2+/-0.7) stents per patient. The success rate of stenting procedure was 99.5%. During hospital stay, no patient died. The major adverse cardiac event (MACE) during in-hospitalization was 0.5% (2/416). The target lesion revascularization (TLR) rate was 4.9%. During the follow-up 16 (3.9%) patients died including 12 cases (2.9%) of cardiac death. Angiography during follow-up conducted on 136 (33.1%) patients showed that binary in-stent restenosis occurred in 20 patients (14.7%, 20/136). TLR was performed by coronary artery bypass graft in 14 patients and by drug eluting stent (DES) implantation in 6 patients respectively. The total MACE rate was 8.3% (34/411).
Conclusion: Safe and with favorable clinical outcome, selective coronary stenting for ULMCA lesions can achieve a high technical success rate.