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Ischaemic Heart Disease-Implications of Gender. Dr Kaye Birks School of Rural Health Monash University Australia Gender Competency Training for Medical Educators Seminar, April 2003. Aims. Describe differences between women and men Natural history Clinical presentations Management
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Ischaemic Heart Disease-Implications of Gender Dr Kaye Birks School of Rural Health Monash University Australia Gender Competency Training for Medical Educators Seminar, April 2003
Aims Describe differences between women and men • Natural history • Clinical presentations • Management • Outcome
Natural History of IHD • Cause of death of approximately one third of women • Greater age dependency • Clinical onset is about 10-15 years later than for men
Natural History--Risk Factorsyoung women • Family history maternal IHD • NIDDM • Smoking risk for sudden death • Isolated raised total cholesterol – less risk • Obesity risk ? explained by co-morbidity
Clinical Presentations • In women angina common first presentation [54%] v. men [38%] • Recognised MI [18%] men [30%] • More atypical symptoms • Pain free MI in older diabetic women • More non Q wave infarcts
Clinical Presentations • Older • Co-morbidities • Unstable angina rather than acute MI • Those with infarction less likely to have ST segment elevation
Outcome differences • More likely to die • The younger the women the greater the difference when compared to male cohort • < 50 years twice as likely to die • After CABG younger women mortality 3.4% v. men 1.1% • Over 75 years no difference in mortality
Outcome differences ?why • Women delay in going to hospital • Missed diagnosis on admission • Less likely to receive thrombolytic therapy • More co morbidities • Less likely to receive established treatments e.g. betablockers, aspirin • Higher death rates for men before going to hospital
Outcome differences ?why • Different pathophysiology in premenopausal women • Plaque erosions in young women, plaque rupture in men and older women • Young women have less narrowing of arteries • ?hypercoaguable state or coronary spasm • Transmural MI with normal coronary angiography
Management • Diagnostic testing less specific in younger women • Less likely to have coronary angiography • When performed more likely to have clinically insignificant disease • Less likely to receive primary preventive treatments
Summary Differences in • natural history • presentation • management • outcome
Summary • Important to highlight these differences in the undergraduate curriculum