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流行病学研究表明,应用口服避孕药与致死性和非致死性心肌梗塞发病危险性的增高均有关系。据实验室研究资料分析也表明,不同类型的口服避孕药对心血管的不利影响,与其制剂中所含雌、孕激素的类型和剂量有关。口服避孕药的配方经过近10余年的演变,如近年采用的新型孕激素制剂;对雌、孕激素改用低剂量的趋向;而且30岁以上妇女主张少用(因30岁以上心肌梗塞的发病危险性大大增加);对年长妇女多选用单一孕激素制剂;卫生专业人员对口服避孕药影响也日益了解,能根据内科病史选择应用
Epidemiological studies have shown that the use of oral contraceptives and fatal and non-fatal myocardial infarction risk increased risk are related. According to laboratory research data analysis also shows that different types of oral contraceptives adverse cardiovascular effects, and preparations containing estrogen and progesterone types and doses related. Oral contraceptive formula after nearly 10 years of evolution, such as in recent years, the use of new progestin preparations; for the estrogen and progesterone switch to low-dose trend; and women over 30 years of advocacy less use (due to the incidence of myocardial infarction over the age of 30 Risk greatly increased); more elderly women choose a single progestin preparation; health professionals on the impact of oral contraceptives are also growing, can choose according to medical history