Aznar R, Reynoso L, Ley E, Gámez R, De León M D
Fertil Steril. 1976 Jan;27(1):92-6. doi: 10.1016/s0015-0282(16)41600-6.
A prospective study was carried out in normal women in order to investigate the effects of the following procedures on the electrocardiogram and blood pressure: (1) insertion of an intrauterine device (IUD)--the Lippes loop, Tcu-200, uterine progesterone system or Cu-7; (2) endometrial biopsy; and (3) uterine flushing. In groups in which a large IUD like the Lippes loop and/or a stiff IUD like the Cu-7 was inserted, the frequency of bradycardia was significantly higher than in any other groups. The severity of the bradycardia was similar in all of the groups and the frequency of this alteration was also similar among the nulliparous women or in those who complained of pain during the instrumentation, irrespective of the type of IUD inserted or the procedure carried out. No alarming modifications of blood pressure were observed and maintaining the patients in the recumbent position was sufficient to alleviate symptoms. In severe cases use of the Trendelenburg position should be enough to correct any alterations.
为了研究以下操作对心电图和血压的影响，对正常女性进行了一项前瞻性研究：（1）宫内节育器（IUD）的置入——Lippes环、Tcu-200、子宫孕酮系统或Cu-7；（2）子宫内膜活检；以及（3）子宫冲洗。在置入如Lippes环这样的大型IUD和/或如Cu-7这样的硬质IUD的组中，心动过缓的发生率显著高于其他任何组。所有组中心动过缓的严重程度相似，并且在未生育女性或在器械操作过程中主诉疼痛的女性中，这种改变的发生率也相似，无论置入的IUD类型或所进行的操作如何。未观察到血压有令人担忧的变化，让患者保持卧位足以缓解症状。在严重情况下，采用头低脚高位应该足以纠正任何改变。
