阮祥燕教授:苯甲酸雌二醇的临床应用

2020-08-22 阮祥燕 妇产科在线

雌孕激素在内的女性激素是伴随女性一生必不可少的激素,缺少女性激素将会导致一系列生殖、心血管、内分泌等疾病。

编者按:雌孕激素在内的女性激素是伴随女性一生必不可少的激素,缺少女性激素将会导致一系列生殖、心血管、内分泌等疾病。由于对激素存在一定的误区,临床上治疗时很多患者谈激素色变,对此,中国妇产科在线邀请到首都医科大学附属北京妇产医院阮祥燕教授,就苯甲酸雌二醇的临床应用,为大家讲述雌激素及其对女性健康的影响。

1.妇产科在线:阮教授您好,非常感谢您接收我们的采访。雌、孕激素对女性身体健康,怀孕以及维持女性第二性征有着重要作用,能否请您介绍一下其中雌激素的定义及其对女性一生中不同阶段有哪些影响?

阮祥燕教授:首先介绍下雌激素的定义,雌激素是一种类固醇激素,在体内雌激素是由芳香化酶催化雄激素转化而来,外周雌激素主要由卵巢产生,脑内主要由下丘脑、边缘的神经元产生。雌激素有天然雌激素(内源性和天然制剂)和合成雌激素(半合成及全合成雌激素)。

雌激素在体内的存在形式有:雌二醇(E2)、雌酮(E1)、雌三醇(E3),其中E2活性最强,血中可测水平。E1和E2在体内可不断地互相转换,E3是E2及E1不可逆代谢产物。在体内起主要作用的是雌二醇。

雌激素伴随女性一生,在青春期,雌激素促进第二性征的发育,促进阴道、子宫、输卵管的发育,有利于长骨骨骺的生长和闭合,腋毛及阴毛的生长,女性身体特征的维持。在生育期,雌激素可促进排卵及平衡月经周期,维持正常性欲及骨量等。在围绝经期及老年期:雌激素可延缓器官衰老,缓解绝经期症状,防止骨量丢失,减少泌尿生殖道萎缩。因此,如雌激素缺乏会引起许多需要认真对待的症状,这些症状影响生活质量、工作能力、并且与某些疾病的发生发展以及死亡率增加相关。

临床中应重点关注围绝经期女性的内分泌变化,围绝经期是妇女从成年进入老年期所必须经过的阶段,女性在这一时期中由于卵巢功能衰退,雌激素水平降低,可能出现围绝经期综合征。因此需要补充雌激素来改善症状。雌激素的补充可通过口服雌激素、经皮雌激素、肌注雌激素等方式来进行补充,其中肌注的方式雌激素吸收效果更好,可快速提高血液中雌二醇含量,起效最快。

2. 妇产科在线:苯甲酸雌二醇为雌激素类药。作用与雌二醇相同,可使子宫内膜增生,增强子宫平滑肌收缩,促使乳腺发育增生等。请您介绍一下苯甲酸雌二醇的临床应用范围及其疗效?

阮祥燕教授:根据文献报道,苯甲酸雌二醇注射液的临床应用范围包括:1、用于排卵功能障碍性异常子宫出血、人流、产后、妇科手术等方面的止血;2、助孕,改善子宫内膜状况;3、治疗卵巢早衰,闭经及雌激素水平下降;4、预防老年妇女骨质疏松及心血管病;5、治疗更年期综合征,潮热,多汗,阴道干燥,失眠,抑郁等;6、治疗高雄激素引起的脱发等。肌注可提高生物利用度,减少血栓风险。

苯甲酸雌二醇治疗功血的作用机制为修复内膜,迅速止血;功血的用法用量为:肌内注射2-4mg,每6-8/h一次,血止3天后逐渐减量,每3天减1/3量,直至每日2mg维持治疗共21天,第14天起加孕激素(当血色素增长到90g/L以上时,可加用孕激素,使内膜转化脱落 )。

有研究将苯甲酸雌二醇用于不孕患者中,研究结果显示,苯甲酸雌二醇能明显增加子宫内膜的厚度,提高妊娠率。还有苯甲酸雌二醇(肌内注射2-4mg)联合缩宫素注射液用于治疗宫缩乏力性产后出血,止血效果也十分显着,可有效减少子宫切除的发生,具有较高的安全性。对于稽留流产在刮宫前使用米非司酮+米索前列醇配伍苯甲酸雌二醇效果较好。

此外,大剂量苯甲酸雌二醇治疗剖宫产晚期产后出血,在使用抗生素、缩宫素等同时给与苯甲酸雌二醇12mg/d肌注,血止后每3d递减1/3量,维持量为2mg/d,维持20d停药,有一定疗效,增加了保守治疗的希望。

因此,苯甲酸雌二醇可用于补充雌激素不足,如卵巢功能早衰、围绝经期综合征、萎缩性阴道炎、萎缩性外阴炎等疾病。还可用于改善绝经期血管舒缩症状、与孕激素联合治疗闭经、排卵功能性障碍性异常子宫出血以及子宫发育不良等。

小结:雌激素是女性生殖系统发育和维持正常功能的重要性激素。雌激素对机体其他系统如骨骼、心血管、大脑等也有重要作用。雌激素在妇科内分泌疾病如功血、闭经、宫腔粘连、围绝经期和绝经后妇女的激素治疗,以及助孕技术中发挥着关键作用。苯甲酸雌二醇作为人体天然的生理性激素,是雌激素治疗的重要选择。

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    2020-08-24 hxzhang
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    2020-08-23 红豆豆豆豆

    不错 点赞收藏学习起来

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  5. [GetPortalCommentsPageByObjectIdResponse(id=1835877, encodeId=ed7a18358e781, content=<a href='/topic/show?id=cfdc22e893f' target=_blank style='color:#2F92EE;'>#临床应用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22789, encryptionId=cfdc22e893f, topicName=临床应用)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=fc8528, createdName=clmlylxy, createdTime=Fri Jan 22 11:10:19 CST 2021, time=2021-01-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=910997, encodeId=5f2691099e23, content=收藏, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=09215401115, createdName=ms2000001790944665, createdTime=Sat Dec 26 00:08:40 CST 2020, time=2020-12-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1299424, encodeId=85861299424b1, content=<a href='/topic/show?id=60ea98e5030' target=_blank style='color:#2F92EE;'>#雌二醇#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=98750, encryptionId=60ea98e5030, topicName=雌二醇)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4f9e287, createdName=hxzhang, createdTime=Mon Aug 24 01:10:19 CST 2020, time=2020-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=812488, encodeId=b4b38124887f, content=不错 点赞收藏学习起来, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTLNibQE85E0sLrn9iasdRSCTB5e7ow6EC5ETpKiamzthjhFVNLpj6qKIeianjHUhQl32fPQtkdsiatFfLQ/132, createdBy=4d852205064, createdName=红豆豆豆豆, createdTime=Sun Aug 23 19:52:00 CST 2020, time=2020-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=811993, encodeId=149d811993d7, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6EF3hKja8nER8RMzxQdria9eCYFhgLTLsDOeqnvIYdeLDz5eP6EnicLuE5gibiawgno4zUA0jAR7Nbtp2llQ9fs3Mk/0, createdBy=278f1986883, createdName=医鸣惊人, createdTime=Sat Aug 22 10:19:48 CST 2020, time=2020-08-22, status=1, ipAttribution=)]
    2020-08-22 医鸣惊人

    学习

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