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  • Title: [Women and cardiovascular diseases].
    Author: Sannito N, Lovreglio V.
    Journal: Minerva Cardioangiol; 2002 Apr; 50(2):107-16. PubMed ID: 12032464.
    Abstract:
    The authors draw attention to the important role played by menopause in the onset of arterial hypertension, enhanced coronary risk and dyslipidemia, for which a particularly useful association has been found to be estrogens, only if administered by mouth (alone or with progestins), and statins. The authors review numerous studies for or against the use of estrogens as a means of reducing arterial hypertension and the incidence of myocardial ischemia in menopausal women. In order to ensure therapeutic efficacy, replacement estrogen therapy should not be started at not too late an age, but instead as young as possible (the first 5 years after the start of menopause are optimal), namely before levels of endothelial estrogen receptors start to fall. Moreover, therapy should not be continued for more than 5 years in order to avoid the risk of breast cancer and endometrial carcinoma. With regard to myocardial infarction, it is worth noting that women show a higher frequency of silent and atypical infarction leading to a late diagnosis and therefore the arrival in the coronary unit half an hour or an hour later than men. Together with the onset of myocardial infarction at an older age in women compared to men (5-10 years), and the fact that diagnosis is less accurate in women and treatment less sophisticated, this accounts for the higher immediate and medium-term mortality figures in women following myocardial infarction. However, at least in America studies have shown that the less aggressive diagnostic and therapeutic management of myocardial infarction in women compared to men is not sufficient to cause a significant difference in mortality between men and women 30 days after the event. Turning to arrhythmia, it is worth recalling that supraventricular tachycardia with close rapid complexes, caused by return in the atrioventricular node is more frequent in females and in the second lutein or progestin phase of the menstrual cycle, thus demonstrating the protective role of estrogens against the onset of arrhythmia. The authors also point out the frequent association between ischemic ictus and chronic non-valvular atrial fibrillation in women aged over 75 since they present a very high risk (94%) of death by ischemic ictus. On the one hand, the guidelines recommend the use of anticoagulating therapy in these patients, but on the other there is a very high risk of hemorrhage which acts as a major constraint. Lastly, pregnancy is mentioned as a condition that facilitates the onset of arrhythmia; for example, orthodromic supraventricular tachycardia in Wolf Parkinson White and ventricular tachycardia which usually regresses post-partum.
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