Article Text

Trends and predictors of myocardial infarction or vascular death after ischaemic stroke or TIA in China, 2007–2018: insights from China National Stroke Registries
  1. Long Li1,
  2. Yuesong Pan2,3,
  3. Mengxing Wang2,3,
  4. Jing Jing2,3,
  5. Xia Meng2,3,
  6. Yong Jiang3,
  7. Caixia Guo1,
  8. Zening Jin1,4,
  9. Yongjun Wang2,3
  1. 1 Department of Cardiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
  2. 2 Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
  3. 3 China National Clinical Research Center for Neurological Diseases, Beijing, China
  4. 4 Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
  1. Correspondence to Dr Zening Jin; Jin_zening{at}163.com; Dr Yongjun Wang; yongjunwang{at}ncrcnd.org.cn

Abstract

Background Although stroke management, primary and secondary preventions have been improved in China last decades, the trends and predictors of major vascular events after ischaemic stroke or transient ischaemic attack (TIA) at national scale are less known.

Methods Data were obtained from the three phases of China National Stroke Registry (CNSR), including CNSR-Ⅰ (years 2007–2008), CNSR-Ⅱ (years 2012–2013) and CNSR-III (years 2015–2018). For comparison, patients who were diagnosed as ischaemic stroke or TIA were included. Kaplan-Meier estimates of myocardial infarction (MI) or vascular death were calculated at 1 year. Independent predictors were further assessed with a Cox proportional hazards regression.

Results From 2007 to 2018, a total of 50 284 patients with ischaemic stroke or TIA were enrolled in this study. A declining trend was found in 1-year MI or vascular death (p for trend <0.001), while recurrent stroke depicted a U-shape curve with a nadir in 2012–2013 cohort. A similar trend was also observed in patients who were admitted to 26 hospitals in all three CNSRs. In 2015–2018 cohort, only 251 (1.7%; 95% CI 1.5% to 1.9%) MI or vascular death had occurred at 1 year. Older age, previous stroke or TIA, history of coronary artery disease and the National Institutes of Health Stroke Scale >6 were associated with both an increased risk of MI or vascular death and recurrent stroke. While early antiplatelet therapy and lipid-lowering agents at discharge predicted a reduced risk.

Conclusion A declining trend and current low incidence of MI or vascular death, rather than recurrent stroke, after ischaemic stroke or TIA were observed in China. Traditional factors were found as independent predictors. These findings suggested there is still much room to improve for stroke management.

  • stroke
  • statistics

Data availability statement

Data are available on reasonable request.

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Data availability statement

Data are available on reasonable request.

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Footnotes

  • Contributors YW and ZJ had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: YW, ZJ and LL. Drafting of the manuscript: LL and ZJ. Critical revision of the manuscript: YP, JJ and CG. Statistical analysis: YP and MW. Study supervision and organisation: YW, ZJ, XM and YJ.

  • Funding This study was supported by grants from the Ministry of Science and Technology of the People’s Republic of China (2016YFC0901001, 2016YFC0901002, 2017YFC1310901), and grants from Beijing Municipal Commission of Health and Family Planning (No.2016-1-2041, SML20150502), and grants from Beijing Postdoctoral Research Foundation (2020-ZZ-010).

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.