Major adverse cardiac events in symptomatic women with non-obstructive CAD on coronary CTA: pooled analysis from PROMISE and SCOT-HEART

Munthir Mansour, Qais Radaideh, Malek N. Alaiwah, Yanal Alnimer, Subodh R. Devabhaktuni, Gaurav Dhar, Srikanth Vallurupalli, Erin D. Michos, David E. Newby, Michelle C. Williams, Marat Fudim, Subhi J. Al’aref

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Purpose: The presence of non-obstructive coronary artery disease (CAD) on coronary computed tomography angiography (CTA) has been associated with the occurrence of major adverse cardiac events (MACE). However, factors associated with the development of MACE in women with non-obstructive CAD have not been fully elucidated. We sought to examine the influence of risk factors and coronary artery calcification on MACE in women with non-obstructive CAD on coronary CTA.
Methods and Results: Women from PROMISE and SCOT-HEART trials with none or non-obstructive CAD on coronary CTA comprised the study cohort. Baseline characteristics and clinical presentation were assessed. Survival analysis using Kaplan-Meier curves was done to compare outcomes stratified by the atherosclerotic cardiovascular disease (ASCVD) risk score and the Agatston score. The primary endpoint was a composite of all-cause mortality, myocardial infarction, and revascularization. 2,597 women had non-obstructive CAD or normal coronary CTA, with a median follow-up of 32 months. Compared to women without MACE, women with MACE had lower high-density lipoprotein cholesterol (HDL-C) levels and higher mean ASCVD risk scores. Further, women with non-obstructive CAD and ASCVD ≥7.5% had higher risk of MACE than those with ASCVD < 7.5% [3.2 % vs. 1.1%, adjusted HR (aHR) of 3.1 (95% CI 1.32, 7.23), P-value 0.009]. The Agatston calcium score, on the other hand, was not independently associated with MACE among this population of symptomatic women.
Conclusions: Symptomatic women with non-obstructive CAD on coronary CTA are at higher risk for MACE, with the ASCVD risk score being independently associated with the occurrence of adverse events.
Original languageEnglish
JournalThe International Journal of Cardiovascular Imaging
DOIs
Publication statusPublished - 10 Oct 2021

Keywords / Materials (for Non-textual outputs)

  • Coronary computed tomography angiography
  • coronary artery disease
  • myocardial infarction
  • coronary artery calcium score
  • atherosclerotic cardiovascular disease

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