Clinical outcomes of percutaneous intervention on the unprotected left main coronary artery
DOI:
https://doi.org/10.5281/zenodo.10278143Keywords:
Myocardial Infarction, Left Main Coronary Artery Disease, Percutaneous Coronary InterventionAbstract
Background: The debate on percutaneous coronary intervention (PCI) of the unprotected left main coronary artery (LMCA) has been constant over time.
Objective: To investigate the clinical and procedural characteristics and cardiovascular outcomes of PCI of unprotected LMCA.
Material and methods: Observational study which included patients with unprotected LMCA disease undergoing PCI; patients with cardiogenic shock prior to the procedure were excluded. We describe the clinical and angiographic characteristics, as well as the major adverse cardiac and cerebrovascular events (MACCE) according to the year of the procedure.
Results: We included 73 patients, with a SYNTAX I score of 31.2 ± 9.1, mostly with ST-elevation acute coronary syndrome (35%). There was a higher frequency of triple vessel coronary disease (63%) and distal LMCA lesions (35%). The provisional stent technique was the most used for distal lesions (58%) and the 2-stent technique for bifurcation lesions (78%), supported by intravascular ultrasound (IVUS) in 38%. During follow-up, 19 presented MACCE (26%), out of which cardiac death occurred in 13%, non-cardiovascular death in 5%, non-fatal acute myocardial infarction in 1%, cerebrovascular event in 2%, and revascularization of the treated vessel in 4%.
Conclusions: It was observed a similar frequency to the one appearing in other studies of cardiovascular events, mainly in patients with intermediate risk, which supports the increasing use of percutaneous intervention in this population.
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