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Background  Whether very elderly women with acute coronary syndromes (ACS) should receive aggressive percutaneous coronary intervention (PCI) is still controversial. We assessed the effectiveness and long-term clinical outcomes of successful PCI in this population and identified prognostic factors which might contribute to the incidence of major adverse cardiovascular and cerebrovascular events (MACCE) in the very elderly female PCI cohort.    Methods  Female ACS patients aged ≥ 80 years were consecutively enrolled (n = 729) into the study. All the patients were divided into female PCI group (n = 232) and medical group (n = 497). MACCE was followed up, including non-fatal myocardial infarction (MI), stroke, heart failure requiring hospitalization (HFRH), cardiovascular (CV) death, and the composite of them. After propensity score matching (1:1), the incidences of MACCE were compared between the two groups. Clinical and coronary artery lesion characteristics were compared between the female PCI patients with (n = 56) and without MACCE (n = 176). Multivariate Cox regression analysis was performed to identify risk factors which independently associated with MACCE in the female PCI patients. MACCE of male PCI patients, who aged ≥ 80 years and hospitalized in the same period (n = 264), was also compared with that of the female PCI patients.    Results  A total of 32% very elderly female ACS patients received PCI in the present study. (1) Compared to female medical group, PCI procedure significantly alleviated the risks of MACCE: non-fatal MI (6.2% vs. 20.2%,  P  < 0.001), HFRH (10.9% vs. 22.5%,  P  = 0.012), CV death (12.4% vs. 28.7%,  P  < 0.001) and the composite MACCE (24.0% vs. 44.2%,  P  < 0.001) during the median follow-up period of 36 months. (2) Between very elderly female and male PCI patients, there were no significant differences in occurrence of MACCE ( P  = 0.232) and CV death ( P  = 0.951). (3) Multivariate Cox analysis revealed that ST-segment elevation myocardial infarction (STEMI) (HR 1.944, 95% CI 1.11–3.403,  P  = 0.02) and elevated log- N-Terminal pro-brain natriuretic peptide (NT-proBNP) (HR 1.689, 95% CI 1.029–2.773,  P  = 0.038) were independently associated with the incidence of MACCE in the female PCI patients.    Conclusions  PCI procedure significantly attenuated the risk of MACCE and improved the long-term clinical outcomes in very elderly female ACS patients. Aggressive PCI strategy may be reasonable in this population.

Improvement of long-term clinical outcomes by successful PCI in the very elderly women with ACS