Contraceptive Agents, Female

避孕药,Female
  • 文章类型: Journal Article
    迁移是依托孕烯避孕植入物的一种罕见但严重的并发症,对它的程度知之甚少。
    在科学文献中记录和描述依托孕烯避孕植入物迁移的病例。
    对Medline的系统评价,在2000年1月至2023年1月之间建立了Embase和全球卫生数据库,以确定存在植入物迁移的物品。叙事评论,会议摘要和非英语或法语的文章被排除在外。
    45篇文章,大部分自2016年以来发表,被确定(8例病例系列和37例病例报告),总共148例独立的迁移病例:在肺血管中(n=74),在非肺血管(n=16)和血管外(n=58)。许多患者无症状,迁移通常是偶然发现。不可触及的植入物和与植入物位置(血管内或血管外)相关的症状可以指示迀移。插入不足和正常或体重不足似乎会增加迁移的风险。科学学会和作者提供了处理植入物迁移的实用策略。
    插入和取出避孕植入物的专业人员必须经过充分的培训。他们需要注意植入物的迁移,并在怀疑有迁移的情况下,及时将患者转介给适当的护理。
    本系统综述记录并描述了148例血管和血管外依托孕烯避孕植入物迁移。医疗保健专业人员必须意识到这种罕见但严重的并发症,并经过充分的培训以插入和移除避孕植入物。
    UNASSIGNED: Migration is a rare but serious complication of the etonogestrel contraceptive implant, and little is known about its extent.
    UNASSIGNED: To document and characterise cases of etonogestrel contraceptive implant migration in the scientific literature.
    UNASSIGNED: A systematic review of Medline, Embase and Global Health databases was carried out between January 2000 and January 2023 to identify articles presenting implant migrations. Narrative reviews, conference abstracts and articles not written in English or French were excluded.
    UNASSIGNED: Forty-five articles, mostly published since 2016, were identified (eight case series and 37 case reports), for a total of 148 independent cases of migration: in pulmonary blood vessels (n = 74), in non-pulmonary blood vessels (n = 16) and extravascular (n = 58). Many patients are asymptomatic and migration is often an incidental finding. A non-palpable implant and symptoms related to implant location (intra- or extra-vascular) may be indicative of migration. Inadequate insertion and normal or underweight appear to increase the risk of migration. Scientific societies and authors offer practical strategies to deal with implant migration.
    UNASSIGNED: Professionals who insert and remove contraceptive implants must be adequately trained. They need to be on the lookout for implant migration, and promptly refer patients to appropriate care if migration is suspected.
    This systematic review documents and characterises 148 cases of vascular and extravascular etonogestrel contraceptive implant migration. Healthcare professionals must be aware of this rare but serious complication and be adequately trained to insert and remove contraceptive implants.
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  • 文章类型: Case Reports
    背景:Nexplanion植入物是一种常见的激素避孕方式。虽然罕见,这些装置可以栓塞到贵重静脉的受伤壁,通过正确的心脏,最后楔入肺动脉.随着时间的推移,随着动脉壁的粘附,它变得不太适合血管内取回。患者可能出现类似肺栓塞的症状,或者根本没有任何症状。在无症状病例中,当患者希望在生物不活动之前开始生育时,需要进行血管内修复和/或手术.目前的文献显示,只有9例报告详细说明了肺组织切除的目的是逆转患者的植入避孕装置。
    方法:一名22岁无症状现役白种人女性接受选择性门诊Nexlanon摘除。当发现植入物在她的左臂中无法触及时,就产生了对可能的植入物迁移的怀疑。在平片X射线无法定位植入物后,胸部X线和后续计算机断层扫描(CT)扫描显示Nexplon已迁移到左肺动脉的远端分支。由于病人的强烈愿望,开始有孩子,作出了撤职的决定。由于Nexlanron包裹在动脉壁内,最初的血管内取回失败。最终,患者接受了左侧电视胸腔镜手术(VATS)探查和左下叶基底动脉S7-9段切除术,成功删除了Nexplanon。
    结论:植入避孕装置很少会导致迁移到肺血管系统。如果患者和临床医生无法触诊这些不透射线的设备,则可以在成像研究中检测到它们。应首先考虑血管内入路以保留肺组织并避免胸壁切口。但可以通过封装和粘附到邻近组织而复杂化。通过双腔气管内导管进行单肺通气的VATS程序允许外科医生安全地在固定的肺上进行手术,而麻醉师则可以促进单肺通气。该患者的病例详细说明了Nexplanon迁移的罕见现象,以及极其罕见的肺切除术移除栓塞装置的治疗方案。
    BACKGROUND: Nexplanon implants are a common hormonal contraceptive modality. Though rare, these devices can embolize into the injured wall of the basilic vein, through the right heart, and finally wedge itself into a pulmonary artery. With adherence to the arterial wall over time, it becomes less amenable to endovascular retrieval. Patients may present with symptoms mimicking a pulmonary embolism, or without any symptoms at all. In asymptomatic cases, endovascular retrieval and/or surgery is required when patients wish to begin having children prior to biological inactivity. The current literature showed as little as nine case reports detailing lung tissue removal in the aim of reversing a patient\'s implanted contraceptive device.
    METHODS: A 22-year-old asymptomatic active-duty Caucasian female presented for elective outpatient Nexplanon removal. The suspicion of possible implant migration arose when it was discovered to be non-palpable in her left arm. After plain film x-rays failed to localize the implant, a chest x-ray and follow-up Computed Tomography (CT) scan revealed that the Nexplanon had migrated to a distal branch of the left pulmonary artery. Due to the patient\'s strong desires to begin having children, the decision was made for removal. Initial endovascular retrieval failed due to Nexplanon encapsulation within the arterial wall. Ultimately, the patient underwent a left video-assisted thoracoscopic surgery (VATS) for exploration and left lower lobe basilar S7-9 segmentectomy, which successfully removed the Nexplanon.
    CONCLUSIONS: Implanted contraceptive devices can rarely result in migration to the pulmonary vasculature. These radiopaque devices are detectable on imaging studies if patients and clinicians are unable to palpate them. An endovascular approach should be considered first to spare lung tissue and avoid chest-wall incisions, but can be complicated by encapsulation and adherence to adjacent tissue. A VATS procedure with single-lung ventilation via a double-lumen endotracheal tube allows surgeons to safely operate on an immobilized lung while anesthesiologists facilitate single-lung ventilation. This patient\'s case details the uncommon phenomenon of Nexplanon migration, and the exceedingly rare treatment resolution of lung resection to remove an embolized device.
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  • 文章类型: Journal Article
    目的:遗传性出血性疾病可能导致女性月经大出血,影响生活质量,损害日常和社会活动。左炔诺孕酮宫内缓释系统是这些妇女的潜在治疗方法,这可能会减少月经失血。
    方法:我们进行了系统评价和单臂荟萃分析,以检查左炔诺孕酮释放宫内节育器在患有遗传性出血性疾病和大量月经出血的女性中的作用。
    结果:对PubMed的系统搜索,Embase和Cochrane产生了583个结果,其中6项观察性研究(n=156)符合纳入标准。左炔诺孕酮宫内缓释系统用于遗传性出血性疾病和大量月经出血的患者中,60%的患者与闭经相关,比较治疗后和治疗前的水平,血红蛋白和铁蛋白水平显着增加1.40g/dL和19.75ng/mL。治疗后平均血红蛋白为13.32g/dL,平均铁蛋白为43.22ng/dL。宫内节育器由于位置不当而排出或取出的比率较低(13%),由于缺乏疗效,需要取出宫内节育器(14%)。
    结论:左炔诺孕酮宫内缓释系统可改善遗传性出血性疾病和大量月经出血患者的出血模式和生活质量。
    OBJECTIVE: Inherited bleeding disorders may cause heavy menstrual bleeding in women, impacting quality of life and impairing daily and social activities. The levonorgestrel-releasing intrauterine system is a potential treatment for these women, which might reduce menstrual blood loss.
    METHODS: We performed a systematic review and single-arm meta-analysis to examine the levonorgestrel-releasing intrauterine system in women with inherited bleeding disorders and heavy menstrual bleeding.
    RESULTS: A systematic search on PubMed, Embase and Cochrane yielded 583 results, of which six observational studies (n = 156) met inclusion criteria. Levonorgestrel-releasing intrauterine system use in patients with inherited bleeding disorders and heavy menstrual bleeding was associated with amenorrhea in 60% of patients and a significant increase of 1.40 g/dL in hemoglobin and of 19.75 ng/mL in ferritin levels when comparing post- and pre-treatment levels. The post-treatment mean hemoglobin was 13.32 g/dL and the mean ferritin was 43.22 ng/dL. The rate of intrauterine device expulsion or removal due to mal position was low (13%), as was the need for intrauterine device removal due to lack of efficacy (14%).
    CONCLUSIONS: The levonorgestrel-releasing intrauterine system may improve bleeding patterns and quality of life in patients with inherited bleeding disorders and heavy menstrual bleeding.
    CONCLUSIONS: Women with inherited bleeding disorders could benefit from levonorgestrel-releasing intrauterine system, so its use should be an option for this women.
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  • 文章类型: Journal Article
    背景:关于青少年赋权的证据,这涉及获得个人和物质资源以实现生殖自主权和经济公平,是有限的。这项系统的审查评估了在青少年和年轻妇女中使用避孕药具增强和加强机构的能力,反之亦然。
    方法:我们在六个电子数据库中进行了搜索:Cochrane系统评论数据库(CDSR)和Cochrane中央对照试验登记册(CENTRAL)。坎贝尔图书馆,MEDLINE(PubMed),EMBASE,护理和相关健康文献累积指数(CINAHL)和WebofScience。酌情使用ROBINS-I和ROB-II工具评估研究的方法学质量。使用ReviewManager5.4进行Meta分析。
    结果:纳入了40项评估授权对避孕药具使用影响的研究。其中,14项非随机干预研究(NRSIs),其余26项为随机对照试验(RCTs).RCT结果显示,性健康和生殖健康授权在不断增加使用避孕药具方面具有显着影响(RR1.22;95%CI1.02,1.45;n=9;I²=77%;等级:非常低),对无保护性行为(RR0.97;95%CI0.74,1.26;n=5;I²=86%;等级:非常低)和青春期妊娠(RR1.07;95%CI0.61,1.87;n=3;I²=36%;等级:非常低)影响不显著。没有一项研究评估了使用避孕药具对赋权的影响。
    结论:对青少年和年轻女性的赋权无疑会在近期或短期改善避孕药具的使用。然而,更可靠的研究,偏差风险低,长期结果,需要使用避孕药具对赋权和加强机构的影响。为了增加避孕药具的使用,为低收入和中等收入国家的青年量身定制的政策和交付平台是必要的。
    BACKGROUND: The evidence on adolescent empowerment, which involves access to personal and material resources for reproductive autonomy and economic equity, is limited. This systematic review assesses the use of contraceptives in empowering and strengthening the agency and vice versa among adolescents and young women.
    METHODS: We ran the searches in six electronic databases: Cochrane Database of Systematic Reviews (CDSR) and the Cochrane Central Register of Controlled Trials (CENTRAL), The Campbell Library, MEDLINE (PubMed), EMBASE, Cumulated Index to Nursing and Allied Health Literature (CINAHL) and Web of Science. The methodological quality of studies was assessed using ROBINS-I and ROB-II tools as appropriate. Meta-analysis was performed using Review Manager 5.4.
    RESULTS: Forty studies that assessed the impact of empowerment on contraceptive use were included. Of these, 14 were non-randomised studies for intervention (NRSIs), and the remaining 26 were randomised controlled trials (RCTs). The results from RCTs show a significant effect of the sexual and reproductive health empowerment in increasing ever use of contraception (RR 1.22; 95% CI 1.02, 1.45; n=9; I²=77%; GRADE: Very Low), and insignificant effect on unprotected sex (RR 0.97; 95% CI 0.74, 1.26; n=5; I²=86%; GRADE: Very Low) and adolescent pregnancy (RR 1.07; 95% CI 0.61, 1.87; n=3; I²=36%; GRADE: Very Low). None of the studies assessed impact of contraceptive use on empowerment.
    CONCLUSIONS: Empowerment of adolescents and young women certainly improves contraceptive use in the immediate or short-term period. However, more robust studies with low risk of bias, longer-term outcomes, and impact of contraceptive use on empowerment and agency-strengthening are required. To increase contraceptive use uptake, tailored policies and delivery platforms are necessary for youth in low- and middle-income countries.
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  • 文章类型: Journal Article
    目的:了解避孕药具的使用模式(开始,切换,中止)以及在青少年计划生育诊所就诊的青少年和年轻人中与怀孕有关。
    方法:我们对在亚特兰大的青少年计划生育诊所就诊的青少年和年轻成年患者(12-20岁)进行了图表回顾,2017年1月1日至2019年12月31日之间的GA。使用带有质量控制的标准化抽象表单,我们收集了3年期间使用的避孕方法和妊娠试验结果的现有数据.我们描述性地分析了避孕药具的使用模式。我们根据不同的避孕开关模式计算并比较了妊娠发生率。
    结果:我们的样本包括2,798人,他们开始了2,358种处方方法。最常用的避孕方法是避孕注射(28.3%),依托孕烯植入(23.5%)和联合激素丸(23.2%)。有599例停用处方方法;出血和头痛等副作用是最常见的停用原因。大多数(75.8%)在停止中等或高度有效的方法后开始了中等或高度有效的方法。那些停止宫内节育器或植入物并开始使用短效避孕方法的人的妊娠发生率最高。
    结论:采用以患者为中心的避孕咨询,将避孕经验与事实相结合,并允许探索和改变,这对年轻人来说可能是有价值的。避孕开关的成功导航可能需要额外的关注,教育,和战略,其中可能包括假设的问题解决,密切跟进,和远程医疗或虚拟医疗。
    OBJECTIVE: To understand contraceptive use patterns (initiation, switching, discontinuation) as well as associations with pregnancy in adolescents and young adults attending a teen family planning clinic.
    METHODS: We performed a chart review of adolescent and young adult patients (ages 12-20) attending a teen family planning clinic in Atlanta, GA between January 1, 2017, and December 31, 2019. Using a standardized abstraction form with quality controls, we collected available data on contraceptive methods used and pregnancy test results during the 3-year period. We analyzed contraceptive use patterns descriptively. We calculated and compared pregnancy incidence according to different contraceptive switch patterns.
    RESULTS: Our sample included 2,798 individuals who initiated 2,358 prescribed methods. The most commonly prescribed methods of contraception were the contraceptive injection (28.3%), etonogestrel implant (23.5%) and combined hormonal pill (23.2%). There were 599 discontinuations of prescribed methods; side effects like bleeding and headache were the most cited reasons for discontinuation. Most (75.8%) initiated a moderately or highly effective method after discontinuing a moderately or highly effective method. The incidence rate of pregnancy was highest for those who had discontinued an intrauterine device or implant and started a shorter-acting contraceptive method.
    CONCLUSIONS: Employing patient-centered contraceptive counseling that incorporates contraceptive experiences in addition to facts and allows for exploration and change may be valuable for young people. Successful navigation of contraceptive switches may require additional attention, education, and strategy, which could include hypothetical problem solving, close follow-up, and telehealth or virtual care.
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  • 文章类型: Systematic Review
    目的:含有醋酸甲羟孕酮(DMPA)的短效孕激素注射剂是一种安全的避孕方法。虽然DMPA已经有几十年了,关于其对乳腺癌风险的影响的数据很少。因此,本文的目的是对现有研究进行概述,并明确与乳腺癌的可能关联.
    方法:文献检索在MEDLINE中执行,Embase,Cochrane图书馆,ClinicalTrials.gov和ICTRP。搜索词与DMPA和乳腺癌有关。消除重复项后,根据纳入和排除标准确定并评估了3\'850项研究。最后,本综述选择并纳入了10项研究.
    结果:所有入选论文均为病例对照研究,除了一项汇总分析和一项研究比较了观察到的和预期的癌症病例数。大多数纳入的研究发现,DMPA使用者的乳腺癌发病率总体上没有升高,只有一项研究发现风险略有增加,两项研究得出结论认为总体乳腺癌风险显着增加。
    结论:几乎没有证据表明DMPA可能增加乳腺癌的总体风险。然而,乳腺癌的发病率在当前和最近的使用者中可能会增加,尤其是35岁以下的女性。长期使用不会导致任何风险增加。然而,需要进一步的研究来证实这些发现,并权衡这种避孕方法的个体风险和益处.
    OBJECTIVE: Short-acting progestin-only injectables containing depot medroxyprogesterone acetate (DMPA) are a safe method of contraception. Although DMPA has been available for several decades, there is little data on its influence on the risk of breast cancer. Hence, the aim of this paper was to provide an overview of the existing studies and create clarity regarding a possible association with breast cancer.
    METHODS: Literature searches were executed in MEDLINE, Embase, the Cochrane Library, ClinicalTrials.gov and ICTRP. Search terms were related to DMPA and breast cancer. After elimination of duplicates, 3\'850 studies were identified and assessed according to inclusion and exclusion criteria. Finally, ten studies were selected and included in this review.
    RESULTS: All the selected papers were case-control-studies, except for one pooled analysis and one study comparing observed and expected number of cancer cases. Most of the included studies found no overall elevated breast cancer incidence in DMPA users, only one study found a slightly increased risk and two studies concluded with a significant increase for the overall breast cancer risk.
    CONCLUSIONS: There is little evidence that DMPA may increase the overall risk for breast cancer. However, the incidence of breast cancer is possibly increased in current and more recent users, especially in women younger than 35 years. Long-term use did not result in any risk increase. Nevertheless, further studies will be necessary to confirm these findings and weigh up the individual risks and benefits of this contraceptive method.
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  • 文章类型: Journal Article
    目的:互联网是健康信息的重要来源,然而,有关长效可逆避孕的信息质量(LARC,在线发现的宫内节育器(IUD)和避孕植入物)在很大程度上是未知的。
    方法:对Google搜索中返回的网页进行范围审查。如果结果是用英语写的并且包含有关LARC的信息,则包括结果的前三页。使用DISCERN健康信息工具对结果进行了严格审查和评估。
    结果:在778个结果中,306页符合资格标准。虽然大多数网页提供了有关LARC的关键信息,包括体内的位置,好处,副作用和风险,提供的信息差异很大。只有一半提到疗效,许多网页没有提供有关插入和移除费用的信息,如何以及在哪里访问设备或它们如何工作。尽管超过四分之三的网页提到了副作用,这些内容的深度和特殊性差异很大,并且在不同的网页上经常相互矛盾。
    结论:大多数网页向消费者提供了医学上准确的信息;然而,许多人没有包括关键信息,如成本或它们是如何工作的。不同网页的副作用描述不同,这可能会阻碍明智的决策。所以呢?:大多数人在拜访医疗保健提供者之前就决定他们可能喜欢使用哪种避孕方法,大多数人会从互联网上获得这些信息。提供全面、关于宫内节育器和避孕植入物的医学准确和一致的信息对于支持知情决策至关重要.
    OBJECTIVE: The internet is an important source of health information, however, the quality of information about long-acting reversible contraception (LARC, including intrauterine devices (IUDs) and contraceptive implants) found online is largely unknown.
    METHODS: A scoping review of webpages returned in a Google search was conducted. The first three pages of results were included if they were written in English and contained information about LARC. Results were critically reviewed and assessed using the DISCERN quality of health information tool.
    RESULTS: Of 778 results, 306 pages met the eligibility criteria. While most webpages provided key information about LARC, including location in the body, benefits, side effects and risks, the information provided varied considerably. Only half mentioned efficacy and many webpages did not provide information about the cost of insertion and removal, how and where to access the devices or how they work. Despite side effects being mentioned in more than three-quarters of webpages, the depth and specificity of these varied considerably and were often contradictory across different webpages.
    CONCLUSIONS: Most webpages provided medically accurate information to consumers; however, many did not include key information such as cost or how they work. Descriptions of side effects varied between webpages, and this may inhibit informed decision-making. SO WHAT?: Most people make decisions about what contraceptive method they might like to use before visiting a health care provider, and most will get this information from the internet. Providing comprehensive, medically accurate and consistent information about both IUDs and contraceptive implants is vital to support informed decision-making.
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  • 文章类型: Journal Article
    在许多国家/地区注册了自行施用的仓库醋酸甲羟孕酮皮下注射避孕(DMPA-SC)。它显示出改善避孕方法的巨大潜力,延续,和自主性。然而,推出这种新的有效干预措施面临挑战,在扩大规模过程中遇到了重大的实施问题。
    为了描述扩大自我管理DMPA-SC的实施策略和障碍,主持人,以及这些计划的结果。
    最近的指导方针,包括用于范围审查的系统审查和荟萃分析(PRISMA)扩展的首选报告项目,用于设计和报告这篇综述。如果一篇文章或报告报告的干预措施可以扩大自我管理的DMPA-SC实施或其促进者,则有资格纳入。障碍,或结果。我们搜索了六个电子数据库和灰色文献,以查找合格的文章和报告。两名审阅者独立筛选了文档标题,摘要,和全文来识别合格的文件。使用结构化形式提取数据。使用卫生系统的有效实践和组织(EPOC)分类法框架进行主题分析,数据以叙事方式呈现。
    在检索到的755个文档中,这次审查包括34个。所包括的大多数文件是多国报告(n=14),所有文件均在过去5年(2018-2021年)内发布。本综述确定了报告所有EPOC领域干预措施的文件。报告最多的干预措施是:卫生工作人员干部之间的任务共享,从事领导,鼓励政策,培训和教育,DMPA-SC需求生成,整合到现有程序中,改善筹资机制,与发展伙伴合作,加强供应链。主要障碍是资金欠佳,人力资源不足,DMPA-SC物流供应不足。放大结果的证据很少。
    本范围审查报告了各国和项目采用的各种干预措施来扩大DMPA-SC的自我管理,但对扩大结果的证据很少。此次审查的证据可以帮助设计更好的计划,以改善获得优质计划生育服务的机会,以实现可持续发展目标(SDG)的目标3.7。然而,努力应集中在严格的实施研究上,以评估扩大的自我管理的DMPA-SC干预措施并报告其结果.
    本次审查的协议已在protocols.io存储库中注册(https://www.protocols.io/view/a-protocol-for-a-scoping-review-of-implementation-x54v9yemmg3e/v1)。
    Self-administered depot medroxyprogesterone acetate subcutaneous injectable contraception (DMPA-SC) is registered in many countries. It shows great potential for improving contraceptive access, continuation, and autonomy. However, there are challenges in rolling out this new efficacious intervention, and major implementation problems have been encountered during scale-up.
    To describe the implementation strategies to scale up self-administered DMPA-SC and the barriers, facilitators, and outcomes of these programs.
    Recent guidelines, including the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) extension for scoping reviews, were used to design and report this review. An article or report was eligible for inclusion if it reported interventions that could scale up self-administered DMPA-SC implementation or its facilitators, barriers, or outcomes. We searched six electronic databases and the grey literature for eligible articles and reports. Two reviewers independently screened the document titles, abstracts, and full texts to identify eligible documents. Data were extracted using structured forms. Using the Effective Practice and Organization of Care (EPOC) taxonomy of health systems framework for thematic analysis, data were presented in a narrative approach.
    Of the 755 retrieved documents, 34 were included in this review. Most of the documents included were multi-country reports (n = 14), and all documents were published within the last 5 years (2018-2021). This review identified documents that reported interventions in all EPOC domains. The most-reported interventions were: task-sharing amongst health workforce cadres, engaged leadership, encouraging policies, training and education, DMPA-SC demand generation, integration into existing programs, improved funding mechanisms, collaboration with development partners, and supply chain strengthening. The main barriers were suboptimal funding, inadequate human resources, and poor logistics supply of DMPA-SC. There was minimal evidence of scale-up outcomes.
    This scoping review reported a wide range of interventions employed by countries and programs to scale up DMPA-SC self-administration but minimal evidence of the scale-up outcomes. Evidence from this review can help design better programs that improves access to quality family planning services to achieve the Sustainable Development Goals (SDG) targets 3.7. However, efforts should focus on rigorous implementation research that assess scaled up self-administered DMPA-SC interventions and report their outcomes.
    The protocol for this review was registered in the protocols.io repository ( https://www.protocols.io/view/a-protocol-for-a-scoping-review-of-implementation-x54v9yemmg3e/v1 ).
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  • 文章类型: Journal Article
    宫内节育器是最有效的避孕方式之一。在过去的20年中,宫内节育器的使用在美国增加。两种制剂在美国是市售的:释放左炔诺孕酮的宫内节育器和铜宫内节育器。左炔诺孕酮宫内节育器释放孕激素,引起子宫内膜抑制和宫颈粘液增厚,而铜宫内节育器的主要作用机制是产生局部炎症反应以防止受精。而联合激素避孕对卵巢和子宫内膜癌的保护作用,和输卵管绝育对卵巢癌的普遍接受,人们对现代宫内节育器对妇科恶性肿瘤发展的影响知之甚少。使用宫内节育器对癌症发病率具有保护作用的最佳证据涉及左炔诺孕酮宫内节育器和子宫内膜癌。尽管研究表明铜宫内节育器和左炔诺孕酮宫内节育器均可降低子宫内膜癌风险。这得到了所提出的双重作用机制的支持,包括子宫内膜抑制和局部炎症反应。关于宫内节育器使用与卵巢癌风险之间关系的研究显示出相互矛盾的结果,尽管大多数数据表明宫内节育器使用者患卵巢癌的风险降低。拟议的卵巢癌减少的生物学机制(异物炎症反应,pH值升高,抗雌激素作用,排卵抑制)因宫内节育器的类型而异。尽管已经确定使用铜宫内节育器可降低宫颈上皮内肿瘤的风险,左炔诺孕酮宫内节育器对宫颈癌的影响尚不清楚.较早的研究已将其使用与宫颈发育不良的较高发生率联系起来,但是最近的文献发现,使用宫内节育器可以减少宫颈癌。假定有各种保护机制,包括与装置相关的宫颈管炎症反应和前列腺素介导的免疫监视。总的来说,现有证据表明,左炔诺孕酮宫内节育器和铜宫内节育器均可降低妇科癌症风险.虽然有人支持使用激素和铜宫内节育器降低子宫内膜癌风险,使用铜宫内节育器降低宫颈癌风险,支持使用左炔诺孕酮宫内节育器治疗宫颈癌和卵巢癌降低风险的证据不太一致.
    The intrauterine device is one of the most effective forms of contraception. Use of the intrauterine device has increased in the United States over the last 2 decades. Two formulations are commercially available in the United States: the levonorgestrel-releasing intrauterine device and the copper intrauterine device. The levonorgestrel intrauterine device releases progestin, causing endometrial suppression and cervical mucus thickening, whereas the primary mechanism of action of the copper intrauterine device is to create a local inflammatory response to prevent fertilization. Whereas the protective effects of combined hormonal contraception against ovarian and endometrial cancer, and of tubal sterilization against ovarian cancer are generally accepted, less is known about the effects of modern intrauterine devices on the development of gynecologic malignancies. The best evidence for a protective effect of intrauterine device use against cancer incidence pertains to levonorgestrel intrauterine devices and endometrial cancer, although studies suggest that both copper intrauterine devices and levonorgestrel intrauterine devices reduce endometrial cancer risk. This is supported by the proposed dual mechanisms of action including both endometrial suppression and a local inflammatory response. Studies on the relationship between intrauterine device use and ovarian cancer risk show conflicting results, although most data suggest reduced risk of ovarian cancer in intrauterine device users. The proposed biological mechanisms of ovarian cancer reduction (foreign-body inflammatory response, increased pH, antiestrogenic effect, ovulation suppression) vary by type of intrauterine device. Whereas it has been well established that use of copper intrauterine devices confers a lower risk of cervical intraepithelial neoplasms, the effect of levonorgestrel intrauterine device use on cervical cancer remains unclear. Older studies have linked its use to a higher incidence of cervical dysplasia, but more recent literature has found a decrease in cervical cancer with intrauterine device use. Various mechanisms of protection are postulated, including device-related inflammatory response in the endocervical canal and prostaglandin-mediated immunosurveillance. Overall, the available evidence suggests that both levonorgestrel intrauterine devices and copper intrauterine devices reduce gynecologic cancer risk. Whereas there is support for the reduction of endometrial cancer risk with hormonal and copper intrauterine device use, and reduction of cervical cancer risk with copper intrauterine device use, evidence in support of risk reduction with levonorgestrel intrauterine device use for cervical and ovarian cancers is less consistent.
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  • 文章类型: Systematic Review
    UNASSIGNED:进行了这项系统审查,以提供有关现代避孕药具交付中任务分担的安全性和有效性的最新证据。研究设计。审查遵循系统评价和荟萃分析(PRISMA)指南的首选报告项目。我们搜查了Medline,Embase,科克伦中部,和GoogleScholar进行同行评审的研究,这些研究报告了任何现代避孕方法的任务共享的有效性和/或安全性结果。只有Cochrane有效的护理组织实践(EPOC)研究设计符合资格,使用Cochrane偏倚风险(RoB)工具对证据进行质量评估.荟萃分析,在可能的情况下,是用Stata进行的,结果证据的确定性使用建议分级评估进行评估,发展,和评估工具(等级)。
    UNASSIGNED:六项研究符合纳入标准:五项报告了自注皮下储库醋酸甲羟孕酮(DMPA-SC)与经过培训的健康提供者相比;一项评估了副临床医生与高级副临床医生进行的输卵管结扎。自我注射改善了避孕延续,与提供者相比,意外怀孕没有增加,副作用也没有差异。在输卵管结扎术中,不良事件的发生率,完成程序的时间,副临床医师和高级临床医师的参与者满意度相似.
    UNASSIGNED:证据表明,由临床副医师进行的DMPA-SC自我注射和输卵管结扎术是安全有效的。这些发现应补充有关这些方法的任务共享的可行性和可接受性的证据。审查方案在PROSPEROCRD42021283336注册。
    UNASSIGNED: This systematic review was conducted to provide up-to-date evidence on the safety and effectiveness of task sharing in the delivery of modern contraceptives. Study Design. The review followed the Preferred Reporting Items for Systematic reviews and Meta-analyses (PRISMA) guidelines. We searched Medline, Embase, Cochrane CENTRAL, and Google Scholar for peer-reviewed studies that reported on effectiveness and/or safety outcomes of task sharing of any modern contraceptive method. Only Cochrane Effective Practice of Organizations of Care (EPOC) study designs were eligible, and quality assessment of the evidence was performed using the Cochrane risk of bias (RoB) tools. Meta-analyses, where possible, were carried out using Stata, and certainty of the evidence for outcomes was assessed using the Grading of Recommendations Assessment, Development, and Evaluation tool (GRADE).
    UNASSIGNED: Six studies met the inclusion criteria: five reported on self-injection of subcutaneous depot medroxyprogesterone acetate (DMPA-SC) compared to administered by trained health providers; and one assessed tubal ligation performed by associate clinicians compared to advanced-level associate clinicians. Self-injection improved contraceptive continuation, with no increase in unintended pregnancy and no difference in side effects compared to provider administered. In tubal ligation, the rate of adverse events, time to complete procedure, and participant satisfaction were similar among associate clinicians and advanced clinicians.
    UNASSIGNED: The evidence suggests that self-injection of DMPA-SC and tubal ligation performed by associate clinicians are safe and effective. These findings should be complemented with the evidence on the feasibility and acceptability of task sharing of these methods. The review protocol was registered with PROSPERO CRD42021283336.
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