Significance of silent myocardial ischemia during exercise testing in women: report from the Coronary Artery Surgery Study. 1995

D A Weiner, and T J Ryan, and L Parsons, and L D Fisher, and B R Chaitman, and L T Sheffield, and F E Tristani
Evans Medical Department of Clinical Research, Boston University Medical Center Hospital, MA 02118.

To evaluate the significance of silent myocardial ischemia during exercise testing in women compared to men, we analyzed the data on 1087 women and 3834 men who underwent exercise testing and coronary angiography from the Coronary Artery Surgery Study (CASS) registry. The patients were divided into three groups on the basis of the results of exercise testing: group 1, silent ischemia (253 women, 853 men); group 2, symptomatic ischemia (156 women, 1250 men); and group 3, no ischemia (678 women, 1731 men). The survival rate at 12 years for women was 80% for group 1, 75% for group 2, and 86% for group 3 (p = 0.0022); the survival rate for men was 69% for group 1, 69% for group 2, and 76% for group 3 (p < 0.001). In both men and women with silent ischemia, the 12-year survival rate was related to the severity of coronary artery disease (CAD) and ranged from 79% for women with one-vessel CAD to 46% for men with three-vessel CAD. Survival at 12 years was enhanced by coronary artery bypass graft surgery as compared to medical treatment in patients with silent ischemia and three-vessel CAD for men (61% vs 46%, respectively, p = 0.0014) but not for women (45% vs 50%, respectively, p = 0.98). These data suggest that silent ischemia in women and men adversely affects survival rate and that men may gain more benefit from coronary artery bypass graft surgery than women when three-vessel CAD is present.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D003327 Coronary Disease An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels. Coronary Heart Disease,Coronary Diseases,Coronary Heart Diseases,Disease, Coronary,Disease, Coronary Heart,Diseases, Coronary,Diseases, Coronary Heart,Heart Disease, Coronary,Heart Diseases, Coronary
D005080 Exercise Test Controlled physical activity which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used. Arm Ergometry Test,Bicycle Ergometry Test,Cardiopulmonary Exercise Testing,Exercise Testing,Step Test,Stress Test,Treadmill Test,Cardiopulmonary Exercise Test,EuroFit Tests,Eurofit Test Battery,European Fitness Testing Battery,Fitness Testing,Physical Fitness Testing,Arm Ergometry Tests,Bicycle Ergometry Tests,Cardiopulmonary Exercise Tests,Ergometry Test, Arm,Ergometry Test, Bicycle,Ergometry Tests, Arm,Ergometry Tests, Bicycle,EuroFit Test,Eurofit Test Batteries,Exercise Test, Cardiopulmonary,Exercise Testing, Cardiopulmonary,Exercise Tests,Exercise Tests, Cardiopulmonary,Fitness Testing, Physical,Fitness Testings,Step Tests,Stress Tests,Test Battery, Eurofit,Test, Arm Ergometry,Test, Bicycle Ergometry,Test, Cardiopulmonary Exercise,Test, EuroFit,Test, Exercise,Test, Step,Test, Stress,Test, Treadmill,Testing, Cardiopulmonary Exercise,Testing, Exercise,Testing, Fitness,Testing, Physical Fitness,Tests, Arm Ergometry,Tests, Bicycle Ergometry,Tests, Cardiopulmonary Exercise,Tests, EuroFit,Tests, Exercise,Tests, Step,Tests, Stress,Tests, Treadmill,Treadmill Tests
D005260 Female Females
D006328 Cardiac Catheterization Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures. Catheterization, Cardiac,Catheterization, Heart,Heart Catheterization,Cardiac Catheterizations,Catheterizations, Cardiac,Catheterizations, Heart,Heart Catheterizations
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001026 Coronary Artery Bypass Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion. Aortocoronary Bypass,Bypass, Coronary Artery,Bypass Surgery, Coronary Artery,Coronary Artery Bypass Grafting,Coronary Artery Bypass Surgery,Aortocoronary Bypasses,Artery Bypass, Coronary,Artery Bypasses, Coronary,Bypass, Aortocoronary,Bypasses, Aortocoronary,Bypasses, Coronary Artery,Coronary Artery Bypasses
D012737 Sex Factors Maleness or femaleness as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or effect of a circumstance. It is used with human or animal concepts but should be differentiated from SEX CHARACTERISTICS, anatomical or physiological manifestations of sex, and from SEX DISTRIBUTION, the number of males and females in given circumstances. Factor, Sex,Factors, Sex,Sex Factor
D015996 Survival Rate The proportion of survivors in a group, e.g., of patients, studied and followed over a period, or the proportion of persons in a specified group alive at the beginning of a time interval who survive to the end of the interval. It is often studied using life table methods. Cumulative Survival Rate,Mean Survival Time,Cumulative Survival Rates,Mean Survival Times,Rate, Cumulative Survival,Rate, Survival,Rates, Cumulative Survival,Rates, Survival,Survival Rate, Cumulative,Survival Rates,Survival Rates, Cumulative,Survival Time, Mean,Survival Times, Mean,Time, Mean Survival,Times, Mean Survival

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