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Trends in management and outcome of patients with non-ST elevation acute coronary syndromes and peripheral arterial disease

Published:August 25, 2018DOI:https://doi.org/10.1016/j.ejim.2018.08.010

      Highlights

      • PAD is present in nearly 15% of patients with NSTE-ACS.
      • As compared to patients without PAD, those with PAD have worse clinical characteristics.
      • The use of invasive procedures has dramatically increased over the years in these patients.
      • Patients with PAD persistently presented an high event rate over time.

      Abstract

      Objective

      Patients with non ST-segment elevation acute coronary syndromes (NSTE-ACS) and peripheral arterial disease (PAD) present a worse prognosis compared to those without PAD. We sought to describe contemporary trends of in-hospital management and outcome of patients admitted for NSTE-ACS with associated PAD.

      Methods

      We analyzed data from 6 Italian nationwide registries, conducted between 2001 and 2014, including consecutive NSTE-ACS patients.

      Results

      Out of 15,867 patients with NSTE-ACS enrolled in the 6 registries, 2226 (14.0%) had a history of PAD. As compared to non-PAD patients, those with PAD had significantly more risk factors and comorbidities (all p < 0.0001) that increased over time. Patients with PAD underwent less frequently coronary angiography (72.0% vs 79.2%, p < 0.0001) and percutaneous coronary intervention (PCI, 42.9% vs 51.8%, p < 0.0001), compared to patients without PAD. Over the years, a progressive and similar increase occurred in the rates of invasive procedures both in patients with and without PAD (both p for trend <0.0001). The crude in-hospital mortality rate did not significantly change over time (p for trend = 0.83). However, as compared to 2001, the risk of death was significantly lower in all other studies performed at different times, after adjustment for multiple comorbidities.. At multivariable analysis, PAD on admission was an independent predictor of in-hospital mortality [odds ratio (OR): 1.75; 95% confidence intervals (CI): 1.35–2.27; p < 0.0001].

      Conclusions

      Over the 14 years of observation, patients with PAD and NSTE-ACS exhibited worsening baseline characteristics and a progressive increase in invasive procedures. Whereas crude in-hospital mortality did not change over time, we observed a significant reduction in comorbidity-adjusted mortality, as compared to 2001.

      Keywords

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