BACKGROUND: We comparatively evaluated clinical outcomes in men and women presenting with stable angina with no coronary artery disease (CAD), nonobstructive CAD, and obstructive CAD on coronary angiography. METHODS: We studied all patients ≥20 years with stable angina, undergoing coronary angiography in British Columbia, Canada, from July 1999 to December 2002 (n = 13,695) with maximum follow-up to 3 years. No CAD, nonobstructive CAD, and obstructive CAD were defined as 0%, 1% to 49%, and ≥50% luminal narrowing in any epicardial coronary artery, respectively. Freedom from major adverse cardiac events (MACEs), which included the combined end points of all-cause mortality, nonfatal acute myocardial infarction, nonfatal stroke, and heart failure admissions, was estimated using the Kaplan-Meier method. Hazard ratios (HRs) and 95% CIs for MACE were estimated up to 3 years postcatheterization and compared between sex and CAD groups. RESULTS: Within the first year, women with nonobstructive CAD had a higher risk of MACE than men with nonobstructive CAD (adjusted HR 2.43, 95% CI 1.08-5.49). Furthermore, women with nonobstructive CAD had a 2.55-fold higher risk of MACE than women with no CAD (95% CI 1.33-4.88). In contrast, men with nonobstructive CAD had a similar risk as men with no CAD (adjusted HR 0.61, 95% CI 0.26-1.45). The differences in MACE according to extent of CAD were not evident in the longer term. CONCLUSIONS: Women with stable angina and nonobstructive CAD are 3 times more likely to experience a cardiac event within the first year of cardiac catheterization than men. A prospective trial to examine the impact of medical therapy on MACE in patients with nonobstructive CAD is warranted.
BACKGROUND: We comparatively evaluated clinical outcomes in men and women presenting with stable angina with no coronary artery disease (CAD), nonobstructive CAD, and obstructive CAD on coronary angiography. METHODS: We studied all patients ≥20 years with stable angina, undergoing coronary angiography in British Columbia, Canada, from July 1999 to December 2002 (n = 13,695) with maximum follow-up to 3 years. No CAD, nonobstructive CAD, and obstructive CAD were defined as 0%, 1% to 49%, and ≥50% luminal narrowing in any epicardial coronary artery, respectively. Freedom from major adverse cardiac events (MACEs), which included the combined end points of all-cause mortality, nonfatal acute myocardial infarction, nonfatal stroke, and heart failure admissions, was estimated using the Kaplan-Meier method. Hazard ratios (HRs) and 95% CIs for MACE were estimated up to 3 years postcatheterization and compared between sex and CAD groups. RESULTS: Within the first year, women with nonobstructive CAD had a higher risk of MACE than men with nonobstructive CAD (adjusted HR 2.43, 95% CI 1.08-5.49). Furthermore, women with nonobstructive CAD had a 2.55-fold higher risk of MACE than women with no CAD (95% CI 1.33-4.88). In contrast, men with nonobstructive CAD had a similar risk as men with no CAD (adjusted HR 0.61, 95% CI 0.26-1.45). The differences in MACE according to extent of CAD were not evident in the longer term. CONCLUSIONS:Women with stable angina and nonobstructive CAD are 3 times more likely to experience a cardiac event within the first year of cardiac catheterization than men. A prospective trial to examine the impact of medical therapy on MACE in patients with nonobstructive CAD is warranted.
Authors: Carl J Pepine; Keith C Ferdinand; Leslee J Shaw; Kelly Ann Light-McGroary; Rashmee U Shah; Martha Gulati; Claire Duvernoy; Mary Norine Walsh; C Noel Bairey Merz Journal: J Am Coll Cardiol Date: 2015-10-27 Impact factor: 24.094
Authors: Tara L Sedlak; Meijiao Guan; May Lee; Karin H Humphries; B Delia Johnson; Carl J Pepine; C Noel Bairey Merz Journal: JAMA Cardiol Date: 2016-07-01 Impact factor: 14.676
Authors: Ahmed Haider; Susan Bengs; Monika Maredziak; Michael Messerli; Michael Fiechter; Andreas A Giannopoulos; Valerie Treyer; Moritz Schwyzer; Christel Hermann Kamani; Dimitri Patriki; Elia von Felten; Dominik C Benz; Tobias A Fuchs; Christoph Gräni; Aju P Pazhenkottil; Philipp A Kaufmann; Ronny R Buechel; Catherine Gebhard Journal: Eur J Nucl Med Mol Imaging Date: 2019-01-16 Impact factor: 9.236