Air pollution, coronary artery disease, and cardiovascular events: Insights from the PROMISE trial

Background - Air pollution is associated with mortality and major adverse cardiovascular events (MACE) in the general population. However, little is known about the relationship between air pollution and coronary artery disease (CAD) and how this relates to MACE. - Methods - This study utilized data...

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Main Authors: Langenbach, Marcel Christian (Author) , Mayrhofer, Thomas (Author) , Langenbach, Isabel L. (Author) , Lu, Michael T. (Author) , Karady, Julia (Author) , Maintz, David (Author) , Abohashem, Shady (Author) , Tawakol, Ahmed (Author) , Pagidipati, Neha J. (Author) , Shah, Svati H. (Author) , Ferencik, Maros (Author) , Motsinger-Reif, Alison (Author) , Douglas, Pamela S. (Author) , Foldyna, Borek (Author)
Format: Article (Journal)
Language:English
Published: May–June 2025
In: Journal of cardiovascular computed tomography
Year: 2025, Volume: 19, Issue: 3, Pages: 306-313
ISSN:1876-861X
DOI:10.1016/j.jcct.2025.03.001
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.jcct.2025.03.001
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S1934592525000486
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Author Notes:Marcel C. Langenbach, Thomas Mayrhofer, Isabel L. Langenbach, Michael T. Lu, Julia Karady, David Maintz, Shady Abohashem, Ahmed Tawakol, Neha J. Pagidipati, Svati H. Shah, Maros Ferencik, Alison Motsinger-Reif, Pamela S. Douglas, Borek Foldyna

MARC

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520 |a Background - Air pollution is associated with mortality and major adverse cardiovascular events (MACE) in the general population. However, little is known about the relationship between air pollution and coronary artery disease (CAD) and how this relates to MACE. - Methods - This study utilized data from the computed tomography (CT) arm of the PROMISE trial investigating symptomatic individuals with suspected CAD. We linked levels of air pollutants (PM2·5, PM10, NO2, and ozone) at U.S. zip codes of residence CT-derived CAD and adjudicated MACE (all-cause death, myocardial infarction, and hospitalization for unstable angina). Multivariable analyses were adjusted for the ASCVD risk score and socioeconomic determinants of health. Mediation analyses were used to test putative pathways. - Results - In 4343 individuals (48 ​% males; age: 61 ​± ​8 years), elevated exposures to PM2.5 (≥9.4 ​μg/m3) and NO2 (≥5.3 ​ppb) were independently associated with obstructive CAD (aOR ​= ​1.23, 95%CI: 1.03-1.48, p ​= ​0.024; aOR ​= ​1.56, 95%CI: 1.02-2.40, p ​= ​0.042), while there were no significant associations with PM10 (≥15 ​μg/m3) or ozone (≥51 ​ppb). Increased PM2.5, PM10 and ozone were independently associated with MACE (aHR ​= ​1.56, 95%CI: 1.12-2.18, p ​= ​0.008; aHR ​= ​2.09, 95%CI: 1.18-3.70, p ​= ​0.011, aHR ​= ​1.96, 95%CI: 1.20-3.21, p ​= ​0.008). In the mediation analysis, obstructive CAD accounted for 9 ​% of the total effect (p ​= ​0.012) between PM2.5 and MACE. - Conclusion - Exposure to air pollution, particularly PM2.5, was independently associated with obstructive CAD and MACE, with obstructive CAD mediating a small but significant portion of the association between air pollution and MACE. 
650 4 |a Adverse cardiac events 
650 4 |a Air pollution 
650 4 |a Computed tomography 
650 4 |a Coronary artery disease 
650 4 |a Socioeconomic determinants of health 
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