Geographic variation and risk factors for systemic and limb ischemic events in patients with symptomatic peripheral artery disease: Insights from the REACH Registry

Jérémie Abtan, Deepak L. Bhatt, Yedid Elbez, Emmanuel Sorbets, Kim Eagle, Christopher M. Reid, Iris Baumgartner, David Wu, Mary E. Hanson, Hakima Hannachi, Puneet K. Singhal, Philippe Gabriel Steg, Gregory Ducrocq, for the REACH Registry Investigators

Research output: Contribution to journalArticleResearchpeer-review

14 Citations (Scopus)

Abstract

Background: Patients with symptomatic peripheral artery disease (PAD) are at high risk of ischemic events. However, data about predictors of this risk are limited. Hypothesis: We analyzed baseline characteristics and 4-year follow-up of patients enrolled in the international REduction of Atherothrombosis for Continued Health (REACH) Registry with symptomatic PAD and no history of stroke/transient ischemic attack to describe annual rates of recurrent ischemic events globally and geographically. Methods: The primary outcome was systemic ischemic events (composite of cardiovascular death, myocardial infarction, or stroke) at 4 years. The secondary outcome was limb ischemic events (composite of lower limb amputation, peripheral bypass graft, and percutaneous intervention for PAD) at 2 years. Multivariate analysis identified risk factors associated with recurrent ischemic events. Results: The primary endpoint rate reached 4.7% during the first year and increased continuously (by 4%–5% each year) to 17.6% by year 4, driven mainly by cardiovascular mortality (11.1% at year 4). Japan experienced lower adjusted ischemic rates (P < 0.01) vs North America. Renal impairment (P < 0.01), congestive heart failure (P < 0.01), history of diabetes (P < 0.01), history of myocardial infarction (P = 0.01), vascular disease (single or poly, P < 0.01), and older age (P < 0.01) were associated with increased risk of systemic ischemic events, whereas statin use was associated with lower risk (P = 0.03). The limb ischemic event rate was 5.7% at 2 years. Conclusions: Four-year systemic ischemic risk in patients with PAD and no history of stroke or transient ischemic attack remains high, and was mainly driven by cardiovascular mortality.

Original languageEnglish
Pages (from-to)710-718
Number of pages9
JournalClinical Cardiology
Volume40
Issue number9
DOIs
Publication statusPublished - 1 Sep 2017

Keywords

  • Ischemic Risk
  • Peripheral Artery Disease
  • Vorapaxar

Cite this

Abtan, J., Bhatt, D. L., Elbez, Y., Sorbets, E., Eagle, K., Reid, C. M., Baumgartner, I., Wu, D., Hanson, M. E., Hannachi, H., Singhal, P. K., Steg, P. G., Ducrocq, G., & for the REACH Registry Investigators (2017). Geographic variation and risk factors for systemic and limb ischemic events in patients with symptomatic peripheral artery disease: Insights from the REACH Registry. Clinical Cardiology, 40(9), 710-718. https://doi.org/10.1002/clc.22721