International Journal of Biometeorology

, Volume 58, Issue 6, pp 1295–1303 | Cite as

The effect of solar-geomagnetic activity during and after admission on survival in patients with acute coronary syndromes

  • Jone VenclovieneEmail author
  • Ruta Babarskiene
  • Irena Milvidaite
  • Raimondas Kubilius
  • Jolanta Stasionyte
Original Paper


A number of studies have established the effects of solar-geomagnetic activity on the human cardio-vascular system. It is plausible that the heliophysical conditions existing during and after hospital admission may affect survival in patients with acute coronary syndromes (ACS). We analyzed data from 1,413 ACS patients who were admitted to the Hospital of Kaunas University of Medicine, Lithuania, and who survived for more than 4 days. We evaluated the associations between active-stormy geomagnetic activity (GMA), solar proton events (SPE), and solar flares (SF) that occurred 0–3 days before and after admission, and 2-year survival, based on Cox’s proportional-hazards model, controlling for clinical data. After adjustment for clinical variables, active-stormy GMA on the 2nd day after admission was associated with an increased (by 1.58 times) hazard ratio (HR) of cardiovascular death (HR = 1.58, 95 % CI 1.07–2.32). For women, geomagnetic storm (GS) 2 days after SPE occurred 1 day after admission increased the HR by 3.91 times (HR = 3.91, 95 % CI 1.31–11.7); active-stormy GMA during the 2nd–3rd day after admission increased the HR by over 2.5 times (HR = 2.66, 95 % CI 1.40–5.03). In patients aged over 70 years, GS occurring 1 day before or 2 days after admission, increased the HR by 2.5 times, compared to quiet days; GS in conjunction with SF on the previous day, nearly tripled the HR (HR = 3.08, 95 % CI 1.32–7.20). These findings suggest that the heliophysical conditions before or after the admission affect the hazard ratio of lethal outcome; adjusting for clinical variables, these effects were stronger for women and older patients.


Geomagnetic activity Solar flare Solar proton event Acute coronary syndromes Survival 



We acknowledge the contribution of Kaunas University of Medicine Clinic of Cardiology in the registration of cardiovascular emergency admissions and survival times, and the formation of the computer database.


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Copyright information

© ISB 2013

Authors and Affiliations

  • Jone Vencloviene
    • 1
    Email author
  • Ruta Babarskiene
    • 2
  • Irena Milvidaite
    • 3
  • Raimondas Kubilius
    • 2
  • Jolanta Stasionyte
    • 4
  1. 1.Institute of CardiologyVytautas Magnus UniversityKaunasLithuania
  2. 2.Department of CardiologyLithuanian University of Health SciencesKaunasLithuania
  3. 3.Institute of Cardiology, Lithuanian University of Health SciencesKaunasLithuania
  4. 4.Department of Environmental SciencesVytautas Magnus UniversityKaunasLithuania

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