Fetal Monitoring

胎儿监测
  • 文章类型: Journal Article
    背景:国际上,建议间歇性听诊(IA)用于监测无并发症妊娠妇女在分娩和分娩期间的胎儿心率.图IA可以识别可能指示需要额外护理或干预的胎儿心率的变化。IA是助产实践的核心方面,但几乎没有证据表明女性在IA的经历。
    目的:我们的研究旨在探讨英国女性IA的经历。
    方法:在2023年2月至5月期间,通过社交媒体招募了23名女性,服务用户组织和慈善机构,对于一集,在知情同意的情况下进行在线访谈或焦点小组。录音被转录和主题分析。
    结果:该分析构建了两个总体主题:“选择工作”和“IA监测对劳动妇女的影响”。
    结论:女性报告缺乏与产时胎儿监护相关的知情决策。我们参与者的经验表明,并不是所有根据当前临床指南推荐IA的女性都提供了IA,而其他人在不了解其功能或其他选择的情况下经历了IA。
    结论:产妇护理专业人员关于分娩时胎儿监测的产前沟通有限会影响妇女做出知情决定的机会。在产前期间采取坚定的知情决策方法可以减少实践差异,并更好地支持助产士支持妇女的分娩选择。
    BACKGROUND: Internationally, intermittent auscultation (IA) is recommended for monitoring the fetal heart rate during labour and birth for women with uncomplicated pregnancies. IA can identify changes in the fetal heart rate that may indicate the need for additional care or intervention. IA is a central facet of midwifery practice, but there is little evidence about women\'s experience of IA.
    OBJECTIVE: Our study aimed to explore women\'s experiences of IA in the UK.
    METHODS: Between February and May 2023, 23 women were recruited through social media, service user organisations and charities, for a single episode, online interview or focus group with informed consent. Audio recordings were transcribed and thematically analysed.
    RESULTS: The analysis constructed two over-arching themes: \'Choice takes work\' and \'Impact of IA monitoring on the labouring woman\'.
    CONCLUSIONS: Women reported a lack of informed decision-making in relation to intrapartum fetal monitoring. The experience of our participants showed that not all women for whom IA would be recommended according to current clinical guidelines were offered it, while others experienced IA without understanding its function or the availability of other options.
    CONCLUSIONS: Limited antenatal communication from maternity care professionals about fetal monitoring in labour has an impact on women\'s opportunities to make informed decisions. A committed approach to informed decision making in the antenatal period could reduce practice variation and better support midwives to support women in their birth choices.
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  • 文章类型: Journal Article
    2019年,美国妇产科医师学会(ACOG)发布了基于个体风险因素的产前胎儿监测(AFS)的具体建议。由于我们的机构已经提出了类似的建议,我们在5年队列中评估了AFS对死产(SB)发生的影响.
    2013年7月1日至2018年6月30日期间所有分娩的回顾性队列研究。排除的是倍数,异常胎儿或新生儿,在妊娠320/7周之前分娩。AFS从32周开始进行,并进行了修改的生物物理分析,具有完整的生物物理配置文件作为非反应性非压力测试的备份。对所有SB病例进行前瞻性识别,并进行单独审查,以验证是否存在危险因素。如果做了胎儿检测的结果,并计算最后一次胎儿测试和分娩之间的间隔。查询研究期间的电子病历,以确定接受AFS的妇女和未接受AFS的妇女。采用卡方比较两组的SB发生率。
    16,827名女性符合研究纳入和排除标准,5711(34%)有提示AFS的危险因素;37%有2个或更多的危险因素。SB发生在其中1.8‰(10/5711)(3个有1个危险因素,5有2个,2个有3个危险因素)。≥32.0周的SB率在有AFS的女性和没有AFS的女性之间相似(1.8vs.2.3‰,p=0.51,OR=0.75,95CI0.36-1.55)。合规妇女在AFS<7天时的假阴性率为1.4‰(8/5711)。在测试人群和未测试人群中,早产率相似(6.5vs.6.0%,p=0.22)。
    在具有类似于ACOG建议的风险因素的女性中实施AFS可能会将SB的风险从32周降至低风险妊娠。
    UNASSIGNED: In 2019 the American College of Obstetricians and Gynecologists (ACOG) issued specific recommendations for performance of antepartum fetal surveillance (AFS) based on individual risk factors. As similar recommendations were already in place at our institution, we have evaluated the impact of AFS on stillbirth (SB) occurrence in a 5-year cohort.
    UNASSIGNED: Retrospective cohort study of all deliveries between 7/1/2013 and 6/30/2018. Excluded were multiples, anomalous fetuses or newborns, and deliveries before 32 0/7 weeks\' gestation. AFS was conducted from 32 weeks with a modified biophysical profile, with a complete biophysical profile as back-up for non-reactive non-stress tests. All cases of SB were prospectively identified and individually reviewed to verify the presence of risk factors, the results of fetal testing if done, and calculate the interval between last fetal test and delivery. The electronic medical records during the study period were queried to identify women who underwent AFS and those who did not. Chi-square was used to compare the rates of SB between the two groups.
    UNASSIGNED: 16,827 women fulfilled the study inclusion and exclusion criteria, 5711 (34%) had risk factors which prompted AFS; 37% had 2 or more risk factors. SB occurred in 1.8‰ of them (10/5711) (3 had 1 risk factor, 5 had 2, and 2 had 3 risk factors). Rates of SB at ≥32.0 weeks were similar between women who had AFS and those who did not (1.8 vs. 2.3‰, p = 0.51, OR = 0.75, 95%CI 0.36-1.55). The false-negative rate at <7 days of a reassuring AFS among compliant women was 1.4‰ (8/5711). Rates of preterm delivery were similar in the tested vs untested population (6.5 vs. 6.0%, p = 0.22).
    UNASSIGNED: Implementation of AFS in women with risk factors similar to those recommended by the ACOG may lower the risk of SB from 32 weeks to that of low-risk pregnancies.
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  • 文章类型: Letter
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  • 文章类型: Journal Article
    背景:我们的目的是在使用手持多普勒评估胎儿心率(FHR)时,检查助产士之间的可靠性和一致性。主要目的是测量FHR基线(基线)作为每分钟搏动(bpm)的可靠性和一致性。次要目标是测量基线的波动,定义为增加和减少,和FHR音轨的分类(正常或异常)。据我们所知,这是有关间歇性听诊(IA)的首次评估者间可靠性和一致性研究。
    方法:参与者包括154名劳动妇女,来自混合风险人群,并入院接受产时护理。评估者是来自挪威各种产妇护理机构的16名助产士。用手持多普勒装置共录制了154条音轨,16名评估者评估了一次1分钟的配乐,通过在线调查(Nettskjema)。他们评估了基线,FHR增加或减少,和FHR分类。主要结果,基线,用类内相关系数(ICC)测量。次要结果用kappa和协议比例测量。
    结果:基线(bpm)的评分者间可靠性为ICC(A,1)0.74(95%CI0.69-0.78)。平均而言,一对评估者之间的绝对差异为7.9bpm(95%CI7.3-8.5bpm).
    结论:我们的结果证明了使用手持多普勒评估基线的可靠性和一致性。
    BACKGROUND: We aimed to examine the inter-reliability and agreement among midwives when assessing the fetal heart rate (FHR) using the handheld Doppler. The primary aim was to measure the reliability and agreement of FHR baseline (baseline) as beats per minute (bpm). The secondary aims were to measure fluctuations from the baseline, defined as increases and decreases, and classifications (normal or abnormal) of FHR soundtracks. This is the first interrater reliability and agreement study on intermittent auscultation (IA) to our knowledge.
    METHODS: The participant population consisted of 154 women in labor, from a mixed-risk population and admitted to hospital for intrapartum care. The rater population were 16 midwives from various maternity care settings in Norway. A total of 154 soundtracks were recorded with a handheld Doppler device, and the 16 raters assessed 1-min soundtracks once, through an online survey (Nettskjema). They assessed the baseline, FHR increase or decrease, and the FHR classification. The primary outcome, baseline, was measured with intraclass correlation coefficient (ICC). The secondary outcomes were measured with kappa and proportion of agreement.
    RESULTS: The interrater reliability for the baseline (bpm) was ICC(A,1) 0.74 (95% CI 0.69-0.78). On average, an absolute difference of 7.9 bpm (95% CI 7.3-8.5 bpm) was observed between pairs of raters.
    CONCLUSIONS: Our results demonstrate an acceptable level of reliability and agreement in assessing the baseline using a handheld Doppler.
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  • 文章类型: Journal Article
    背景:死胎是一个主要的全球健康问题。一半的死胎发生在产时期间,主要在撒哈拉以南非洲和南亚的低收入和中等收入国家。到2030年实现每千名新生儿中不到12例的死胎率是每个新生儿行动计划和可持续发展目标的全球目标。有证据表明,提高产时护理质量可以帮助减少死胎和其他不良妊娠结局。这项研究将探讨产时护理点的质量改善(QI)包是否可以减少死胎和其他结果,例如孕产妇和新生儿死亡率。
    方法:我们将进行系统的文献综述和荟萃分析。将为PubMed数据库制定全面的搜索策略,WebofScience,ScienceDirect,ProQuest,科克伦与中国国家知识基础设施。我们将包括随机对照试验,非随机对照试验,对照临床试验,中断的时间序列,队列研究,病例对照和巢式病例对照研究,评估产时护理点QI干预对死胎和其他不良妊娠结局的影响。我们将搜索灰色文献,如未发表的研究报告,论文和未完成的试验。将包括英语和非英语语言文章,以避免语言偏见。我们还将评估报告质量和偏差风险。将对异质性进行敏感性测试。将使用随机效应模型计算效应大小的集合估计。将用定性叙事合成补充定量合成,如果认为有必要。我们将使用漏斗图和Egger的回归检验来探索出版偏差,如果需要。
    结论:我们将报告跨多个环境的不同产时QI干预措施在避免死产和其他不良结局如孕产妇死亡率和新生儿死亡率方面的综合有效性。
    BACKGROUND: Stillbirths are a major global health concern. Half of stillbirths occur during intrapartum period, mostly in low- and middle-income countries of sub-Saharan Africa and South Asia. Achieving a stillbirth rate of less than 12 per 1000 births by 2030 is the global target of Every Newborn Action Plan and Sustainable Development Goals. Evidence suggests that improving intrapartum quality of care can help reduce stillbirths and other adverse pregnancy outcomes. This study will explore whether quality improvement (QI) packages at intrapartum care points can reduce stillbirths and other outcomes such as maternal and neonatal mortality.
    METHODS: We will conduct a systematic literature review and meta-analysis. Comprehensive search strategy will be developed for databases PubMed, Web of Science, ScienceDirect, ProQuest, Cochrane and China National Knowledge Infrastructure. We will include randomized controlled trials, controlled non-randomized trials, controlled clinical trials, interrupted time series, cohort studies, case-control and nested case-control studies which assess the impact of QI interventions at intrapartum points of care on stillbirths and other adverse pregnancy outcomes. We will search grey literature such as unpublished research studies, dissertations and unfinished trials. English and non-English language articles will be included to avoid language bias. We will also evaluate reporting quality and risk of bias. Sensitivity tests will be carried out for heterogeneity. Pooled estimates of effect sizes will be computed with random-effects models. Supplementation of the quantitative synthesis with a qualitative narrative synthesis would be added, if deemed necessary. We will explore publication bias using funnel plot and Egger\'s regression test will be used for evaluation, if needed.
    CONCLUSIONS: We will report pooled effectiveness of different intrapartum QI interventions across multiple settings in averting stillbirths and other adverse outcomes such as maternal mortality and neonatal mortality.
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  • 文章类型: Journal Article
    缺铁性贫血是孕妇的重要问题,和静脉(IV)铁输注已越来越多地使用。输液期间是否需要胎儿监护一直存在争议,血液学家最近的指南建议反对这样的。我们报告了2例异麦芽酮铁(IIM)后胎儿心动过缓,在母亲和胎儿健康良好的女性中。两者都出现了呼吸困难,并在输注后的几分钟内出现了去饱和,其次是持续的胎儿心动过缓。两人都接受了1级CS,脐带动脉pH值分别为7.08和6.94。在文献综述中,仅发现3例胎儿静脉铁剂心动过缓病例报告.对于较旧的IV铁配方,在静脉注射右旋糖酐试验剂量后报告了一例,同时报告了2例葡萄糖酸铁后。对于新配方IIM,到目前为止只报告了一例,而是在患有克罗恩病和宫内生长受限的女性中。妊娠静脉注射铁具有过敏性或超敏反应的风险,即使使用最新的配方和具有良好母婴健康的女性。虽然到目前为止很少报道,胎儿心动过缓是一个可能的后果,通常出现呼吸道症状。因此,在输注期间应考虑胎儿监测。
    Iron deficiency anemia is an important problem among pregnant women, and intravenous (IV) iron infusions have been increasingly used. Whether fetal monitoring is required during infusion has been debated, with a recent guideline by Hematologists recommending against such. We report two cases of fetal bradycardia after iron isomaltoside (IIM), in women with otherwise good maternal and fetal health. Both developed dyspnea with desaturation minutes from infusion, followed by persistent fetal bradycardia. Both underwent category 1 CS, with cord arterial pH of 7.08 and 6.94 respectively. Upon literature review, only three case reports on fetal bradycardia in IV iron were identified. For older IV iron formulations, a case was reported after IV dextran test dose, while two cases after ferric gluconate were reported. For the new formulation IIM, only one case was reported so far, but in a woman with Crohn\'s disease and intrauterine growth restriction. IV iron in pregnancy carries risk of anaphylactic or hypersensitivity reactions, even with the newest formulations and in women with good maternal and fetal health. While rarely reported so far, fetal bradycardia is a possible consequence, commonly preceded by respiratory symptoms. Fetal monitoring should therefore be considered during infusion.
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  • 文章类型: Journal Article
    尽管劳动力依赖于太多的相互作用因素,没有一个参数可以完全预测其结果,胎儿脑多普勒已经成为最可靠的预测工具,与胎儿体重相比,在怀孕的最后几周表现明显更差。脑多普勒的重要性遵循胎儿体重在妊娠最后几周增加其表现并在分娩前达到最高能力的反向途径。脑血流的组合,胎儿体重,选择的临床信息可以获得对分娩结果的适度预测,前提是劳动的间隔时间不长。
    Despite the fact that labor depends on too many interacting factors and no parameter can fully predict its outcome, fetal cerebral Doppler has emerged as the most reliable tool for prediction, in contrast with fetal weight, which performs significantly worse in the last weeks of pregnancy. The importance of the cerebral Doppler follows the inverse pathway of fetal weight increasing its performance in the last weeks of pregnancy and reaching its highest ability prior to labor. A combination of cerebral flow, fetal weight, and selected clinical information may obtain moderate predictions of labor outcome, provided the interval to labor is not long.
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  • 文章类型: Journal Article
    在PIH的情况下,历史是意识逐渐发展和必要知识逐渐形成的故事。血压计的发展,或者血压袖带,在1700年代后期,为Gravid患者的现代系统血压报告提供了依据。在接下来的几年和几十年里,高血压和这些并发症之间的关系,如先兆子痫和子痫,变得更加清晰。1952年,美国孕产妇福利委员会对高血压疾病进行了分类,其中包括PIH,慢性高血压,和先兆子痫.今天,正在注意识别这些因素,寻找加强疾病治疗的方法,他们的诊断方法,和提高妊娠结局。怀孕可以通过以下两种方式引起高血压:先兆子痫和妊娠期高血压。这些疾病都是所谓的妊娠高血压(PIH)的一部分。在世界上,母亲和婴儿在怀孕期间的大多数问题都来自PIH。为了帮助妈妈和宝宝,我们需要知道很多原因,如何管理它,以及如何仔细观察婴儿。免疫反应等方面,环境,和基因混合导致PIH。它们使胎盘不能正常工作。当帮助胎盘生长的细胞不能很好地完成它们的工作时,当血管僵硬时,当身体受到太大的压力时,或者当化学物质没有很好的平衡来帮助建立血管时,事情可能会变坏。全身血管紧紧挤压,血流下降,血压上升.这可能会使许多器官停止正常工作,并阻止婴儿健康成长。各种研究得出结论,PIH严重限制了流向胎盘的血液,因此有助于减少胎儿的生长。它表明,与其他医院相比,经历过PIH的女性更有可能在婴儿准备好之前提前分娩,也就是说,在37周之前,并可能对婴儿造成进一步的健康并发症。这通常会使后代具有低出生体重,并使他们在婴儿期和将来遭受许多并发症,以防他们出生在患有PIH的母亲身上。在严重的情况下,PIH可能导致婴儿死于死产或出生后立即死亡。研究人员注意到PIH的几个诱发因素,其中包括高血压的病史,糖尿病,超重或肥胖,并且有家族的PIH病史。对妇女进行有关PIH的存在及其原因的教育可以帮助她们尽早咨询医疗机构,从而帮助领导者实现更好的怀孕结果。
    In the case of PIH, the history is the story of gradually developing awareness and the gradual formation of requisite knowledge. The development of the sphygmomanometer, or blood pressure cuff, in the late 1700s, provided the basis for modern systematic blood pressure reporting for Gravid patients. In the following years and over a few decades, the relationship between high blood pressure and these complications, such as preeclampsia and eclampsia, became clearer. The hypertensive disease was categorized by the American Committee on Maternal Welfare in 1952, which included PIH, chronic hypertension, and preeclampsia. Today, attention is being paid to the identification of such factors, the search for ways to enhance the treatment of diseases, methods for their diagnosis, and the enhancement of pregnancy outcomes. Pregnancy can cause high blood pressure in two of the following ways: preeclampsia and gestational hypertension. These conditions are both part of something called pregnancy-induced hypertension (PIH). In the world, most problems for moms and babies during pregnancy come from PIH. To help both mom and baby, we need to know a lot about what causes it, how to manage it, and how to watch the baby carefully. Aspects like immune responses, the environment, and genes all mix to cause PIH. They make the placenta not work right. When the cells that help the placenta grow don\'t do their job well, when blood vessels are stiff, when there\'s too much stress on the body, or when there\'s not a good balance of chemicals that help build blood vessels, things can get bad. Blood vessels all over the body squeeze tight, blood flow goes down, and blood pressure goes up. That can make a lot of organs stop working right and stop the baby from healthy growth. Various studies concluded that PIH severely limits the blood flow to the placenta and thus contributes to reduced fetal growth. It showed that compared to other hospitals, women who experience PIH are more likely to give birth early before the baby is ready, that is, before 37 weeks, and may cause further health complications to the baby. This normally makes the offspring have low birth weight and exposes them to many complications in infancy and the future in case they are born to mothers with PIH. In severe cases, PIH may lead to the death of the infant either by stillbirth or immediately after birth. The researchers have noted several predisposing factors to PIH, which include histories of elevated blood pressure, diabetes, being overweight or obese, and having a family history of PIH. Educating women about the presence of PIH and its causes can help them consult health facilities early, thus helping leaders in achieving better pregnancy results.
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  • 文章类型: Editorial
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  • 文章类型: Journal Article
    目的:描述2019-2020年挪威所有分娩中使用的产时胎儿监测方法,评估对国家指南的遵守情况,调查女性风险状况的变化,并探索影响监测实践的关联。
    方法:一项全国性的基于人群的研究。我们从挪威医学出生登记处收集了2019-2020年所有胎龄≥22周的怀孕数据。我们使用了描述性分析,对风险状态进行分层,检查所有分娩中使用的胎儿监测方法。使用单变量和多变量logistic回归模型来确定与低风险心脏造影(CTG)监测相关的因素,直截了当的出生
    结果:总计,只有间歇性听诊(IA)监测了14285例(14%)分娩,只有CTG的46214(46%),和33417(34%)与IA和CTG相结合。4%(2067/50533)的有危险因素的女性仅接受IA监测。使用CTG监测了一半(10589/21282)直接分娩的低风险妇女。产妇和胎儿的特点,出生单元的大小和区域实践影响了该组中CTG监测的使用.
    结论:大多数分娩仅使用CTG进行监测,或与IA结合。尽管国家指南建议IA,但使用CTG监测了一半的低风险妊娠和直接分娩的妇女。
    OBJECTIVE: To describe intrapartum fetal monitoring methods used in all births in Norway in 2019-2020, assess adherence to national guidelines, investigate variation by women\'s risk status, and explore associations influencing monitoring practices.
    METHODS: A nationwide population-based study. We collected data about all pregnancies with a gestational age ≥ 22 weeks during 2019-2020 from the Medical Birth Registry of Norway. We used descriptive analyses, stratified for risk status, to examine fetal monitoring methods used in all deliveries. Univariable and multivariable logistic regression models were used to determine factors associated with monitoring with cardiotocography (CTG) in low-risk, straightforward births.
    RESULTS: In total, 14 285 (14%) deliveries were monitored with only intermittent auscultation (IA), 46214 (46%) with only CTG, and 33417 (34%) with IA and CTG combined. Four percent (2 067/50 533) of women with risk factors were monitored with IA only. Half (10589/21 282) of the low-risk women with straightforward births were monitored with CTG. Maternal and fetal characteristics, size of the birth unit and regional practices influenced use of CTG monitoring in this group.
    CONCLUSIONS: Most births are monitored with CTG only, or combined with IA. Half the women with low-risk pregnancies and straightforward births were monitored with CTG although national guidelines recommending IA.
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