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Published on: March 12, 2018
Abciximab in elderly with acute coronary syndrome invasively treated: effect on outcome
Gennaro Galasso1, Federico Piscione, Fulvio Furbatto
1Division of Cardiology, Federico II University, Naples, Italy.
Insights
Adding abciximab (a GPIIb/IIIa inhibitor) to stenting significantly reduces long-term death and major adverse cardiac events in elderly patients with Non-ST elevation Acute Coronary Syndrome (ACS). This treatment offers an absolute benefit with acceptable bleeding risk.
Area of Science:
- Cardiology
- Interventional Cardiology
- Geriatric Medicine
Background:
- Older age is a significant risk factor for mortality following percutaneous coronary intervention (PCI) in Non-ST elevation Acute Coronary Syndrome (ACS).
- The role of GPIIb/IIIa inhibitors in elderly ACS patients undergoing PCI remains debated due to conflicting data.
Purpose of the Study:
- To evaluate the efficacy and safety of adding abciximab (a GPIIb/IIIa inhibitor) to stenting in elderly patients with Non-ST elevation ACS.
- To assess the long-term impact of abciximab on mortality and major adverse cardiac events (MACE) in this high-risk population.
Main Methods:
- A consecutive cohort of 500 elderly patients with Non-ST elevation ACS undergoing PCI was analyzed.
- Patients were divided into two groups: those treated with stenting plus abciximab (GPI group) and those treated with stenting alone (no GPI group).
- Propensity score analysis was employed to adjust for non-randomized treatment allocation.
Main Results:
- In-hospital mortality and bleeding rates were similar between the GPI and no GPI groups.
- Long-term follow-up revealed significantly lower rates of death (4.5% vs 12.3%), myocardial infarction (2.8% vs 11.1%), and pre-PCI events (5.7% vs 13.4%) in the GPI group.
- Cox regression identified abciximab use as an independent predictor of reduced long-term MACE (Exp(B) 0.620).
Conclusions:
- The addition of abciximab to stenting improves long-term outcomes in elderly patients with Non-ST elevation ACS.
- This strategy leads to a significant reduction in death and MACE with a manageable bleeding profile.
- Abciximab administration is associated with improved long-term MACE in this patient cohort.
Abstract:
Older age is an independent predictor of mortality after percutaneous coronary intervention (PCI) in patients with Non-ST elevation Acute Coronary Syndrome (ACS). GPIIb/IIIa inhibitors are proved to improve outcome in high risk patients, but conflicting data are available about the effects of these inhibitors in elderly. Accordingly, we studied a consecutive population of elderly patients undergoing PCI for Non-ST elevation ACS. A total of 500 patients were divided in: GPI group (247 pts; mean age 77+/-1.9 years) treated by stenting plus abciximab and, no GPI group (253 pts; mean age 77+/-2.4 years) treated by stenting alone. Propensity analysis was used to account for the nonrandomized use of GPIIb/IIIa inhibitors. During hospitalization, incidence of death was similar among groups (3.2% vs 4.6%) without difference regarding incidence of major (1.6% vs 1.1%) and minor bleedings (4% vs 3%). At long-term follow-up the rate of death was significantly lower in GPI group (4.5% vs 12.3%; p=0.002) as well as the rate of acute myocardial infarction (2.8% vs 11.1%; p=0.0001), and pre-PCI (5.7% vs 13.4%; p=0.003). Cox regression analysis identified abciximab use as an independent predictor of lower long-term major adverse cardiac event (MACE) after adjustment for propensity score (Exp (B) 0.620, 95%CI 0.394-0.976, p=0.039). Our results suggest that addition of abciximab to stenting improves outcome in elderly patients with Non-ST elevation ACS, leading to an absolute benefit for reduction of death and MACE, with an acceptable rate of major and minor bleedings.
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