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Revista argentina de cardiología
versión On-line ISSN 1850-3748
Resumen
LEGUIZAMON, JORGE H et al. Unprotected Left Main Percutaneous Coronary Intervention: One and 3-Year Evolution. Event Prediction. Rev. argent. cardiol. [online]. 2021, vol.89, n.5, pp.429-434. Epub 01-Oct-2021. ISSN 1850-3748. http://dx.doi.org/10.7775/rac.es.v89.i5.20435.
Background:
Left main percutaneous coronary intervention is a therapeutic option for patients with favorable anatomy.
Objectives:
The aim of this study was to report our experience in the treatment of these patients, their clinical evolution and the variables associated with clinical events during follow-up.
Methods:
This was a retrospective analysis of patients that underwent percutaneous coronary artery intervention for left main obstructive disease between 2011 and 2017 at Clínica Bazterrica and Clínica Santa Isabel. The incidence of clinical events was evaluated at one year and at long-term follow-up (at least 3 years after the intervention). An univariate and multivariate analysis (Cox proportional risk model) was performed to identify event-associated variables (death and infarction).
Results:
Among a total of 95 patients included in the study, 39 (41.1%) underwent a non-elective procedure. The rate of overall mortality was 9.3% at 12 months and 13.6% at long-term follow-up, and that of non-fatal myocardial infarction 7.2% and 14.5%, respectively. On the other hand, the rate of stroke and revascularization was 2.1% and 10.4% at 12 months, respectively. On multivariate analysis, the only independent predictors of adverse clinical events were non-elective intervention at 12 months (p = 0.003) and age >70 years after the first year (p <0.0001).
Conclusions:
Our results of left main percutaneous coronary intervention correspond with those reported by other authors. The incidence of one-year and long-term clinical events was associated with identifiable conditions, as procedure indication and age of the patients at the time of intervention
Palabras clave : Left Main Coronary Artery Disease; Percutaneous Coronary Intervention; Stent.