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KMID : 0368120200500020133
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Korean Circulation Journal
2020 Volume.50 No. 2 p.133 ~ p.144
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Effect of Operator Volume on In-Hospital Outcomes Following Primary Percutaneous Coronary Intervention for ST-Elevation Myocardial Infarction: Based on the 2014 Cohort of Korean Percutaneous Coronary Intervention (K-PCI) Registry
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Lee Jung-Hee
Eom Sang-Yong
Kim Ung
Lee Chan-Hee
Son Jang-Won
Jeon Dong-Woon
Bae Jang-Ho
Oh Seok-Kyu
Cha Kwang-Soo
Suh Yong-Sung
Koh Young-Youp
Yang Tae-Hyun
Shim Dae-Keun
Bae Jang-Whan
Park Jong-Seon
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Abstract
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Background and Objectives: The relationship between operator volume and outcomes of percutaneous coronary intervention (PCI) in patients with ST-elevation myocardial infarction (STEMI) has not been fully investigated. We aimed to investigate the relationship between operator PCI volume and in-hospital outcomes after primary PCI for STEMI.
Methods: Among the total of 44,967 consecutive cases of PCI enrolled in the Korean nationwide, retrospective registry (K-PCI registry), 8,282 patients treated with PCI for STEMI by 373 operators were analyzed. PCI volumes above the 75th percentile (>30 cases/year), between the 75th and 25th percentile (10?30 cases/year), and below the 25th percentile (<10 cases/year) were defined as high, moderate, and low-volume operators, respectively. In-hospital outcomes including mortality, non-fatal myocardial infarction (MI), stent thrombosis, stroke, and urgent repeat PCI were analyzed.
Results: The average number of primary PCI cases performed by 373 operators was 22.2 in a year. In-hospital mortality after PCI for STEMI was 571 cases (6.9%). In-hospital outcomes by operator volume showed no significant differences in the death rate, cardiac death, non-fatal MI, and stent thrombosis. However, the rate of urgent repeat PCI tended to be lower in the high-volume operator (0.6%) than in the moderate-(0.7%)/low-(1.5%) volume operator groups (p=0.095). The adjusted odds ratios for adverse in-hospital outcomes were similar in the 3 groups. Multivariate analysis also showed that operator volume was not a predictor for adverse in-hospital outcomes.
Conclusions: In-hospital outcomes after primary PCI for STEMI were not associated with operator volume in the K-PCI registry.
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KEYWORD
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ST elevation myocardial infarction, Percutaneous coronary intervention, Operator volume, Treatment outcome
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