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Long-Term Outcome of Unprotected Left Main Percutaneous Coronary Interventions—An 8-Year Single-Tertiary-Care-Center Experience
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Long-Term Outcome of Unprotected Left Main Percutaneous Coronary Interventions—An 8-Year Single-Tertiary-Care-Center Experience
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Long-Term Outcome of Unprotected Left Main Percutaneous Coronary Interventions—An 8-Year Single-Tertiary-Care-Center Experience
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Journal Article
Long-Term Outcome of Unprotected Left Main Percutaneous Coronary Interventions—An 8-Year Single-Tertiary-Care-Center Experience
2025
Overview
Background/Objectives: Randomized studies of patients with unprotected left main coronary artery (ULMCA) disease involve highly selected populations. Therefore, we sought to investigate the 60-month event-free survival of consecutive patients undergoing ULMCA percutaneous coronary intervention (PCI) and determine the best risk score system and independent predictors of event-free survival. Methods: All patients who underwent ULMCA PCI at our center between 1 January 2007 and 31 December 2014 were included. The primary endpoint was the time to cardiac death, target lesion myocardial infarction, or target lesion revascularization (whichever came first) with a follow-up of 60 months. Results: A total of 513 patients (mean age 68 ± 12 years, 64% male, 157 elective, 356 acute) underwent ULMCA PCI. The 60-month incidence of events was 16.8% and 38.0% in elective and acute patients, respectively. There were significantly more events in the acute group during the first 6.5 months. Of the risk scores, the ACEF (AUC = 0.786) and SYNTAX II (AUC = 0.716) scores had the best predictive power in elective and acute patients, respectively. The SYNTAX score proved to be the least predictive in both groups (AUC = 0.638 and 0.614 in the elective and acute groups, respectively). Left ventricular function (hazard ratio (HR) for +10% 0.53 [95% CI, 0.38–0.75] and 0.81 [95% CI, 0.71–0.92] in elective and acute patients, respectively) and, in acute patients, access site (femoral vs. radial HR 1.76 [95% CI, 1.11–2.80]), hyperlipidemia (HR 0.58 [95% CI, 0.39–0.86]), and renal function (HR for +10 mL/min/1.73 m2 higher GFR: 0.87 [95% CI, 0.78–0.97]) were independent predictors of event-free survival. Conclusions: Acute ULMCA PCI patients have worse prognosis than elective patients, having more events during the first 6.5 months. Besides anatomical complexity, clinical and procedural parameters determine the prognosis.
