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| Short-term prognostic analysis of elderly patients with acute inferior myocardial infarction with different infarct-related artery after primary PCI |
| LI Chenggang1 XIA Yong2 GAO Wen1 TONG Jiangtao1 |
1.Institute of Cardiovascular Disease, Xuzhou Medical University, Jiangsu Province, Xuzhou 221000, China;
2.Department of Cardiology, Affiliated Hospital of Xuzhou Medical University, Jiangsu Province, Xuzhou 221000, China |
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Abstract Objective To investigate the elderly patients' short-term clinical prognosis of acute inferior wall ST-segment elevation myocardial infarction (STEMI) with different infarct-related artery (IRA) undergoing primary percutaneous coronary intervention (pPCI). Methods From January 2015 to April 2016, in Department of Cardiology of Affiliated Hospital of Xuzhou Medical University, 133 elderly patients (≥60 years) with the inferior wall STEMI undergoing pPCI successfully were selected. According to difference of IRA, the enrolled elderly patients were divided into rightcoronary artery group (RCA group, n = 103) and left circumflex group (LCX group, n = 30). The patients' general clinical characteristic, and all patients followed up within 30 d of major adverse cardiovascular events (MACE), including cardiacdeath, heart failure or cardiogenic shock, malignant arrhythmia and target vessel revascularization were collected. Results LVEF of RCA group after operation 7 d and follow-up 30 d were significantly lower than those of LCX group [(47.1±8.4)% vs (53.4±7.1)%, (49.5±8.9)% vs (56.3±6.9)%,], the differences were statistically significant (P < 0.05). During the follow-up period, there were 45 MACE case in the group RCA, only 6 MACE cases in the group LCX. incidence of MACE in two groups was compared (43.7% vs 20.0%), the difference was statistically significant (P < 0.05). Conclusion RCA induced inferior STEMI in elderly patients has a poorer short-term prognosis than LCX.
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