OBSTETRICS

产科
  • 文章类型: Journal Article
    在南非预防艾滋病毒垂直传播计划(VTP)减少了儿科艾滋病毒。这些方案需要纳入转诊医院。
    确定两家转诊医院产科和儿科学科工作人员对国家VTP指南的了解和态度。
    使用横截面设计,评估指导方针和态度知识的问卷(意识,易于使用和非筒仓实践,测量综合实践)是在当地开发和验证的。使用标准统计分析,这些问卷的数据用于进行比较,并确定与知识和态度相关的因素.
    在249名参与者中,138例(55.4%)在产科,125名(50.2%)是护士,168名(67.5%)自我认定为初级员工。知识得分很好,中位数评分(Q1-Q3)为91.7%(79.1-95.8),在接受过特定学科培训的人中更高(P=0.003)。初级员工(P=0.002)的知识水平高于高级员工。大多数(80%)发现指南易于使用并且具有良好的意识,这与知识和培训相关。差距包括对艾滋病毒阴性妇女的产前检测和新生儿艾滋病毒检测时间表的理解。员工在综合实践中得分不佳;中位数(Q1-Q3)为50%(33.3-58.3),与知识呈负相关(r=-0.146,n=249,P=0.022)。
    转诊医院的工作人员在实施VTP时似乎在孤岛内执业,这可能导致无法确保综合实践。规范的跨学科和跨专业培训对于确保转诊医院中VTP的综合实施可能很重要。
    UNASSIGNED: Prevention of HIV vertical transmission programmes (VTPs) in South Africa has decreased paediatric HIV. These programmes require integration in referral hospitals.
    UNASSIGNED: To determine knowledge of and attitudes to the national VTP guidelines in staff from Obstetric and Paediatric disciplines at two referral hospitals.
    UNASSIGNED: Using a cross-sectional design, a questionnaire to assess knowledge of the guidelines and attitudes (awareness, ease-of-use and non-silo practice, measuring integrated practice) was developed and validated locally. Using standard statistical analyses, data from these questionnaires were used to draw comparisons and determine factors associated with knowledge and attitudes.
    UNASSIGNED: Of the 249 participants, 138 (55.4%) were in obstetrics, 125 (50.2%) were nurses, and 168 (67.5%) self-identified as junior staff. Knowledge scores were good, median score (Q1-Q3) was 91.7% (79.1-95.8), and higher in those who had discipline-specific training (P = 0.003). Junior staff (P = 0.002) had higher knowledge levels than senior staff. Most (80%) found the guidelines easy to use and had good awareness, which correlated with knowledge and training. Gaps included understanding of antenatal testing of HIV-negative women and timelines for neonatal HIV testing. Staff scored poorly on integrated practice; the median score (Q1-Q3) was 50% (33.3-58.3), which was inversely correlated with knowledge (r= -0.146, n = 249, P = 0.022).
    UNASSIGNED: Staff in referral hospitals appear to be practising within silos when implementing VTPs, and this may result in failures to ensure integrated practice. Regularised interdisciplinary and interprofessional training may be important to ensure the integrated implementation of VTPs in referral hospitals.
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  • 文章类型: Journal Article
    该模块教授生殖健康本科医学教育的核心知识和技能,利用交互式小组翻转课堂方法和基于案例的指导,提供正常和异常妊娠和分娩管理的指导。
    在教育会议之前提供了预先准备材料。2小时的会议是由临床教育工作者使用教师指南进行的。利用自愿调查,我们收集数据以衡量每次教育课程后妇产科学生和辅导员的满意度.
    在9个月内抓到6个职员,116名学生参加,64名学生完成了满意度调查,97%的人同意该会议有助于将知识和原则应用于常见的临床情景。大多数学生(96%)自我报告说,他们实现了会议的学习目标,利用前期工作和互动小组教学。九位临床指导员完成了调查;所有人都同意提供的材料使他们能够促进主动学习,与传统教学法相比,大多数人(89%)同意他们花更少的时间准备教授该课程。
    此交互式翻转课堂课程满足了与使用标准化材料管理怀孕和分娩有关的文员学习目标。该课程也减少了临床教育工作者的准备时间。
    UNASSIGNED: This module teaches core knowledge and skills for undergraduate medical education in reproductive health, providing instruction in the management of normal and abnormal pregnancy and labor utilizing interactive small-group flipped classroom methods and case-based instruction.
    UNASSIGNED: Advance preparation materials were provided before the education session. The 2-hour session was facilitated by clinical educators using a faculty guide. Using voluntary surveys, we collected data to measure satisfaction among obstetrics and gynecology clerkship students and facilitators following each education session.
    UNASSIGNED: Capturing six clerkships spanning 9 months, 116 students participated, and 64 students completed the satisfaction survey, with 97% agreeing that the session was helpful in applying knowledge and principles to common clinical scenarios. Most students (96%) self-reported that they achieved the session\'s learning objectives utilizing prework and interactive small-group teaching. Nine clinical instructors completed the survey; all agreed the provided materials allowed them to facilitate active learning, and the majority (89%) agreed they spent less time preparing to teach this curriculum compared to traditional didactics.
    UNASSIGNED: This interactive flipped classroom session meets clerkship learning objectives related to the management of pregnancy and labor using standardized materials. The curriculum reduced preparation time for clinical educators as well.
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  • 文章类型: Journal Article
    腹腔镜手术需要大量培训,和先前的研究表明,外科住院医师缺乏关键的腹腔镜技能。许多教育工作者已经实施了模拟课程以改善腹腔镜培训。鉴于专用时间有限,现场模拟中心实践,家庭培训已成为扩大培训和促进实践的一种可能机制。在采用嵌入式反馈机制的已发布的家庭腹腔镜课程中仍然存在差距。
    按照Kern的六步方法,我们开发了一个九项在家腹腔镜课程和课程结束评估。我们与一年级至三年级的居民实施了为期4个月的课程。
    在47位来自普外科的受邀居民中,产科/妇科,还有泌尿科,37人(79%)参加了家庭课程,25人(53%)参加课程结束评估。参加家庭课程的居民完成了9项任务中的6项(四分位数范围:3-8)。22名居民(47%)对课程后调查做出了回应。其中,19(86%)报告说,通过完成课程,他们的腹腔镜技能得到了提高,同样的19人(86%)认为应该继续为未来的居民提供课程。完成更多家庭课程任务的居民在课程结束评估中得分更高(p=.009,调整后的R2为.28),并在较短的时间内执行评估任务(p=.004,调整后的R2为.28)。
    这个以学习者为中心的腹腔镜课程提供了指导性的例子,间隔练习,反馈,和毕业的技能发展,使初级居民能够以较低的风险提高他们的腹腔镜技能,家庭环境。
    UNASSIGNED: Laparoscopic surgery requires significant training, and prior studies have shown that surgical residents lack key laparoscopic skills. Many educators have implemented simulation curricula to improve laparoscopic training. Given limited time for dedicated, in-person simulation center practice, at-home training has emerged as a possible mechanism by which to expand training and promote practice. There remains a gap in published at-home laparoscopic curricula employing embedded feedback mechanisms.
    UNASSIGNED: We developed a nine-task at-home laparoscopic curriculum and an end-of-curriculum assessment following Kern\'s six-step approach. We implemented the curriculum over 4 months with first- to third-year residents.
    UNASSIGNED: Of 47 invited residents from general surgery, obstetrics/gynecology, and urology, 37 (79%) participated in the at-home curriculum, and 25 (53%) participated in the end-of-curriculum assessment. Residents who participated in the at-home curriculum completed a median of six of nine tasks (interquartile range: 3-8). Twenty-two residents (47%) responded to a postcurriculum survey. Of these, 19 (86%) reported that their laparoscopic skills improved through completion of the curriculum, and the same 19 (86%) felt that the curriculum should be continued for future residents. Residents who completed more at-home curriculum tasks scored higher on the end-of-curriculum assessment (p = .009 with adjusted R 2 of .28) and performed assessment tasks in less time (p = .004 with adjusted R 2 of .28).
    UNASSIGNED: This learner-centered laparoscopic curriculum provides guiding examples, spaced practice, feedback, and graduated skill development to enable junior residents to improve their laparoscopic skills in a low-stakes, at-home environment.
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  • 文章类型: Journal Article
    产科抗磷脂综合征(OAPS)是一种与各种病理性妊娠相关的自身免疫性疾病,例如复发性流产,死产,重度子痫前期和重度胎盘功能不全。抗磷脂抗体(aPL)的持续存在是OAPS最重要的实验室特征。OAPS严重影响中国育龄妇女的生殖健康。报告显示,大约9.6%的死胎,11.5%重度子痫前期,54%的复发性流产与OAPS或aPL有关。然而,OAPS的发病机制尚不清楚。以前,母胎界面血栓形成(MFI)被认为是OAPS相关病理性妊娠的主要机制.因此,建议在整个妊娠期间使用低分子量肝素和阿司匹林,以改善OAPS患者的结局.近年来,许多研究发现MFI中的血栓形成并不常见,但各种炎症因子在OAPS患者的MFI中显著升高。基于这些发现,一些临床医生已经开始使用抗炎治疗OAPS,初步改善了妊娠结局。然而,对于OAPS的这些二线治疗方法尚无共识。另一个令人不安的问题是OAPS的临床诊断。类似于其他自身免疫性疾病,只有OAPS的分类标准,OAPS的临床诊断取决于临床医生的经验。目前的OAPS分类标准是为临床和基础研究目的而建立的,不适用于患者临床管理。在临床实践中,许多aPL阳性且有病理妊娠史的患者不符合严格的OAPS标准.这导致了不正确的诊断和治疗的广泛问题。及时准确诊断OAPS是有效治疗的关键。在这篇文章中,综述了OAPS的流行病学研究进展,总结了OAPS的分类原则,包括:1)循环中持续存在的aPL;2)OAPS的表现,排除其他可能的原因。对于第一点,对aPLs的准确评估是至关重要的;对于后者来说,以往的研究仅将胎盘相关妊娠并发症视为OAPS的特征性表现.然而,最近的研究表明,不良妊娠结局与滋养细胞损伤有关,例如复发性流产和死胎,在OAPS中也需要考虑。我们还讨论了OAPS诊断和治疗中的几个关键问题。首先,我们讨论了非标准OAPS的定义,并提出了在2023年美国风湿病学会(ACR)/欧洲抗风湿病联盟(EULAR)APS标准框架内定义非标准OAPS的意见.然后,我们讨论了不同的aPL测试方法的优缺点,强调跨平台协调结果和建立特定的参考值是解决aPL测试结果争议的关键。我们还介绍了非标准不良贷款的应用,特别是抗磷脂酰丝氨酸/凝血酶原抗体(aPS/PT)和抗β2糖蛋白Ⅰ结构域Ⅰ抗体(aβ2GPⅠDⅠ)。此外,我们讨论了基于aPL的OAPS风险分类策略。最后,我们提出了难治性OAPS的潜在治疗方法。旨在为OAPS的临床管理提供参考。
    Obstetric antiphospholipid syndrome (OAPS) is an autoimmune disorder associated with various pathological pregnancies, such as recurrent miscarriage, stillbirth, severe pre-eclampsia and severe placental insufficiency. The persistent presence of antiphospholipid antibodies (aPLs) is the most important laboratory characteristic of OAPS. OAPS severely affects the reproductive health of women of childbearing age in China. Reports indicate that approximately 9.6% stillbirths, 11.5% severe pre-eclampsia, and 54% recurrent miscarriages are associated with OAPS or aPLs. However, the pathogenesis of OAPS remains unclear. Previously, thrombosis at the maternal-fetal interface (MFI) was considered the main mechanism of OAPS-related pathological pregnancies. Consequently, the use of low molecular weight heparin and aspirin throughout pregnancy was recommended to improve outcomes in OAPS patient. In recent years, many studies have found that thrombosis in MFI is uncommon, but various inflammatory factors are significantly increased in the MFI of OAPS patients. Based on these findings, some clinicians have started using anti-inflammatory treatments for OAPS, which have preliminarily improved the pregnancy outcomes. Nevertheless, there is no consensus on these second-line treatments of OAPS. Another troubling issue is the clinical diagnosis of OAPS. Similar to other autoimmune diseases, there are only classification criteria for OAPS, and clinical diagnosis of OAPS depends on the clinicians\' experience. The present classification criteria of OAPS were established for clinical and basic research purposes, not for patient clinical management. In clinical practice, many patients with both positive aPLs and pathological pregnancy histories do not meet the strict OAPS criteria. This has led to widespread issues of incorrect diagnosis and treatment. Timely and accurate diagnosis of OAPS is crucial for effective treatment. In this article, we reviewed the epidemiological research progress on OAPS and summarized its classification principles, including: 1) the persistent presence of aPLs in circulation; 2) manifestations of OAPS, excluding other possible causes. For the first point, accurate assessment of aPLs is crucial; for the latter, previous studies regarded only placenta-related pregnancy complications as characteristic manifestations of OAPS. However, recent studies have indicated that adverse pregnancy outcomes related to trophoblast damage, such as recurrent miscarriage and stillbirth, also need to be considered in OAPS. We also discussed several key issues in the diagnosis and treatment of OAPS. First, we addressed the definition of non-standard OAPS and offered our opinion on defining non-standard OAPS within the framework of the 2023 American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) APS criteria. Then, we discussed the advantages and disadvantages of different aPL testing methods, emphasizing that harmonizing results across platforms and establishing specific reference values are keys to resolving controversies in aPL testing results. We also introduced the application of non-criteria aPLs, especially anti-phosphatidylserine/prothrombin antibody (aPS/PT) and anti-β2 glycoprotein Ⅰ domain Ⅰ antibody (aβ2GPⅠDⅠ). Additionally, we discussed aPL-based OAPS risk classification strategies. Finally, we proposed potential treatment methods for refractory OAPS. The goal is to provide a reference for the clinical management of OAPS.
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  • 文章类型: Journal Article
    简介世界卫生组织(WHO)安全手术检查表显着降低了常规手术室病例的发病率和死亡率。然而,常规手术室病例与在产程和分娩单元进行剖宫产之间的工作流程和流程存在显著差异.这项研究的目的是为分娩和分娩单位以及剖宫产调整WHO安全手术清单,以改善沟通和患者安全。方法由所有主要利益相关者组成的多学科小组审查并修订了WHO安全手术清单,使其更适用于剖宫产手术。对新的安全剖腹产检查表进行了测试,然后将其集成到电子病历中,并在分娩和分娩单位中使用。制定了具体的剖宫产安全态度问卷,已验证,并在实施前和实施后一年进行管理。结果初次实施后,安全剖宫产检查表的使用率大于95%。据报告,工作人员对几个关键领域的剖宫产态度问卷有了显著改善,包括感觉在手术开始时就可以获得所有必要的信息,减少通信中断和延迟,和更少的问题,有关不知道谁是在手术过程中负责。讨论实施安全剖宫产检查表被工作人员成功采用,并证明了员工对我们单位几个关键安全问题的看法有所改善。应进行其他研究,以确定该干预措施的临床结果是否与使用WHO安全手术检查表的结果相当。
    Introduction The World Health Organization (WHO) Safe Surgery Checklist significantly decreases morbidity and mortality in regular operating room cases. However, significant differences in workflow and processes exist between regular operating room cases and cesarean sections performed on the labor and delivery unit. The aim of this study is to adapt the WHO Safe Surgery Checklist for the labor and delivery unit and cesarean sections to improve communication and patient safety. Methods A multidisciplinary team consisting of all major stakeholders reviewed and revised the WHO Safe Surgery Checklist making it more applicable to cesarean section operations. The new Safe Cesarean Section Checklist was tested and then integrated into the electronic medical record and utilized on the labor and delivery unit. A specific cesarean section safety attitudes questionnaire was developed, validated, and administered prior to and one year after implementation. Results Usage of the Safe Cesarean Section Checklist was greater than 95% after initial implementation. Significant improvements were reported by the staff on the cesarean section attitudes questionnaire for several key areas including the feeling that all necessary information was available at the beginning of the procedure, decreases in communication breakdowns and delays, and fewer issues related to not knowing who was in charge during the procedure. Discussion Implementation of the Safe Cesarean Section Checklist was successfully adopted by the staff, and improvements in staff perceptions of several key safety issues on our unit were demonstrated. Additional studies should be undertaken to determine if clinical outcomes from this intervention are comparable to those seen with the use of the WHO Safe Surgery Checklist.
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  • 文章类型: Journal Article
    目的介绍颅背臀角(CTCDH)作为评估孕早期胎儿位置的新型定量工具,并验证其在未来AI应用中的可行性。材料与方法在三级医院作为试验组,分析了2520例妊娠早期胎儿NT检查和2582张CRL图像(2022年1月至8月)。此外,对1418例胎儿CRL图像(2022年9月至12月)进行了检查以进行验证。三位超声专家定义了胎儿位置的标准。清洗CDH测量值,由两名超声波技术员进行,使用Bland-Altman图和类内相关系数(ICC)验证一致性。这种方法允许将胎儿位置分类为过度屈曲,中性,和过度伸展基于周日CDH。相对于Ioannou评估了比较准确性,Wanyonyi,和使用加权Kappa系数(k值)的Roux方法。结果试验组胎儿CRL图像2186张,和验证组包括1193图像。测量一致性较高(ICC为0.993;P<0.001)。在中性胎位建立的95%参考范围为118.3°~137.8°。与Ioannou相比,TgCDH方法显示出更高的准确性,Wanyonyi,和Roux方法在两组中,试验组的准确率为94.5%(k值:0.874,95CI:0.852-0.896),和92.6%(k值:0.838,95CI:0.806-0.871)在验证组中。结论已经验证了做早孕胎儿位置评估的方法有很好的重复性和准确性。这为其未来可能集成到智能评估模型中奠定了基础。
    Purpose  To introduce the cranial-dorsal-hip angle (∠CDH) as a novel quantitative tool for assessing fetal position in the first trimester and to validate its feasibility for future AI applications. Materials and Methods  2520 first-trimester fetal NT exams with 2582 CRL images (January-August 2022) were analyzed at a tertiary hospital as the pilot group. Additionally, 1418 cases with 1450 fetal CRL images (September-December 2022) were examined for validation. Three expert sonographers defined a standard for fetal positions. ∠CDH measurements, conducted by two ultrasound technicians, were validated for consistency using Bland-Altman plots and the intra-class correlation coefficient (ICC). This method allowed for categorizing fetal positions as hyperflexion, neutral, and hyperextension based on ∠CDH. Comparative accuracy was assessed against Ioannou, Wanyonyi, and Roux methods using the weighted Kappa coefficient (k value). Results  The pilot group comprised 2186 fetal CRL images, and the validation group included 1193 images. Measurement consistency was high (ICCs of 0.993; P<0.001). The established 95% reference range for ∠CDH in the neutral fetal position was 118.3° to 137.8°. The ∠CDH method demonstrated superior accuracy over the Ioannou, Wanyonyi, and Roux methods in both groups, with accuracy rates of 94.5% (k values: 0.874, 95%CI: 0.852-0.896) in the pilot group, and 92.6% (k values: 0.838, 95%CI: 0.806-0.871) in the validation group. Conclusion  The ∠CDH method has been validated as a highly reproducible and accurate technique for first-trimester fetal position assessment. This sets the stage for its potential future integration into intelligent assessment models.
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  • 文章类型: Journal Article
    先天性心脏病(CHD)影响每1,000个活产中就有8个,对出生后有重大影响,包括生长障碍,神经发育迟缓,和死亡率。胎盘与胎儿心脏同时发育。受CHD影响的妊娠中胎盘病理和不一致生长的高率突出了胎儿-胎盘-心脏轴的重要性。
    本研究旨在表征新生儿出生体重(BW)之间的关系,头围,胎盘重量(PW),和受冠心病影响的妊娠胎盘病理。PW:BW提供了评估胎盘效率的替代方法,或者胎盘的营养交换和分娩,跨CHD表型。
    回顾性队列研究了139例出生后确诊的CHD伴胎盘病理的单胎。胎盘检查,婴儿BW,头围,和冠心病类别(间隔缺损,右侧缺陷,左侧缺陷,conotruncal异常,和其他)被包括在内。卡方,费希尔的精确,或者Kruskall-Wallis检验和多项逻辑回归,视情况而定。
    出生体重中位数和头围百分位数分别为33和35。在37%的病例中记录了胎盘病理学。PW与BW之比<10百分位数(78%),<3百分位数(54%),CHD类别之间没有差异(分别为P=0.39和P=0.56)。
    CHD婴儿在小胎盘环境中保留了体重和头围,胎盘病理患病率增加,提示胎盘效率。检测胎盘异常生长可以增加产前诊断价值。胎盘和新生儿不一致的生长可能暗示血管异常使胎儿容易发展为CHD。需要进一步的研究来探索胎儿营养素的分娩和利用效率。
    UNASSIGNED: Congenital heart disease (CHD) affects 8 in 1,000 live births with significant postnatal implications including growth failure, neurodevelopmental delay, and mortality. The placenta develops concomitantly with the fetal heart. High rates of placental pathology and discordant growth in pregnancies affected by CHD highlight the significance of the fetal-placental-cardiac axis.
    UNASSIGNED: This study aimed to characterize the relationship between neonatal birthweight (BW), head circumference, placental weight (PW), and placental pathology in pregnancies affected by CHD. PW:BW provides a surrogate to assess placental efficiency, or nutrient exchange and delivery by the placenta, across CHD phenotypes.
    UNASSIGNED: Retrospective cohort of 139 live-born singletons with postnatally confirmed CHD with placental pathology. Placental examination, infant BW, head circumference, and CHD categories (septal defects, right-sided defects, left-sided defects, conotruncal anomalies, and others) were included. Chi-square, Fisher\'s exact, or Kruskall-Wallis tests and multinomial logistic regressions, as appropriate.
    UNASSIGNED: Median birthweight and head circumference percentile was 33 and 35, respectively. Placental pathology was documented in 37% of cases. PW to BW ratios were <10th percentile for 78% and <3rd percentile for 54% of the cohort, with no difference between CHD categories (P = 0.39 and P = 0.56, respectively).
    UNASSIGNED: Infants with CHD have preserved BW and head circumferences in the setting of small placentas and increased prevalence of placental pathology, suggesting placental efficiency. Detection of abnormal placental growth could add prenatal diagnostic value. Placental and neonatal discordant growth may allude to a vascular anomaly predisposing fetuses to developing CHD. Further studies are needed to explore fetal nutrient delivery and utilization efficiency.
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  • 文章类型: Journal Article
    背景:当前的产后出血(PPH)风险分层是基于传统的统计模型或专家意见。机器学习可以通过允许更复杂的建模来优化PPH预测。
    目的:我们试图改进PPH预测,并比较机器学习和传统统计方法。
    方法:我们使用来自美国12家医院的安全劳动联盟数据集(2002-2008)开发了模型。主要结果是输血血制品或PPH(估计失血≥1000mL)。次要结果是输血任何血液制品。包括50个产前和产时特征和医院特征。Logistic回归,支持向量机,多层感知器,随机森林,和梯度增强(GB)用于生成预测模型。使用接受者工作特征曲线下面积(ROC-AUC)和精确度/召回曲线下面积(PR-AUC)来比较性能。
    结果:在228,438名新生儿中,5760例(3.1%)妇女产后出血,5170(2.8%)进行了输血,10,344(5.6%)符合输血-PPH复合材料的标准。使用产前和产时特征预测输血-PPH复合模型具有最佳的阳性预测值,GB机器学习模型总体表现最佳(ROC-AUC=0.833,95%CI0.828-0.838;PR-AUC=0.210,95%CI0.201-0.220)。预测输血-PPH复合材料的GB模型中最具预测性的特征是分娩方式,催产素增量分娩剂量(mU/分钟),分娩时使用宫缩剂,麻醉护士在场,医院类型。
    结论:机器学习在预测PPH方面提供了比逻辑回归更高的可判别性。TheConsortiumforSafeLabordatasetmaynotbeoptimalforanalyzingriskduetostrongsubgroupeffects,这降低了准确性并限制了泛化性。
    BACKGROUND: Current postpartum hemorrhage (PPH) risk stratification is based on traditional statistical models or expert opinion. Machine learning could optimize PPH prediction by allowing for more complex modeling.
    OBJECTIVE: We sought to improve PPH prediction and compare machine learning and traditional statistical methods.
    METHODS: We developed models using the Consortium for Safe Labor data set (2002-2008) from 12 US hospitals. The primary outcome was a transfusion of blood products or PPH (estimated blood loss of ≥1000 mL). The secondary outcome was a transfusion of any blood product. Fifty antepartum and intrapartum characteristics and hospital characteristics were included. Logistic regression, support vector machines, multilayer perceptron, random forest, and gradient boosting (GB) were used to generate prediction models. The area under the receiver operating characteristic curve (ROC-AUC) and area under the precision/recall curve (PR-AUC) were used to compare performance.
    RESULTS: Among 228,438 births, 5760 (3.1%) women had a postpartum hemorrhage, 5170 (2.8%) had a transfusion, and 10,344 (5.6%) met the criteria for the transfusion-PPH composite. Models predicting the transfusion-PPH composite using antepartum and intrapartum features had the best positive predictive values, with the GB machine learning model performing best overall (ROC-AUC=0.833, 95% CI 0.828-0.838; PR-AUC=0.210, 95% CI 0.201-0.220). The most predictive features in the GB model predicting the transfusion-PPH composite were the mode of delivery, oxytocin incremental dose for labor (mU/minute), intrapartum tocolytic use, presence of anesthesia nurse, and hospital type.
    CONCLUSIONS: Machine learning offers higher discriminability than logistic regression in predicting PPH. The Consortium for Safe Labor data set may not be optimal for analyzing risk due to strong subgroup effects, which decreases accuracy and limits generalizability.
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  • 文章类型: Journal Article
    VirginiaApgar博士是一位美国麻醉师和研究人员,她的简单5分评分系统严重影响了产后即刻新生儿复苏的发展。今天,APGAR评分系统在世界各地的分娩室中用于指导临床医生评估新生儿,并区分哪些可能需要紧急复苏.有了一个简单的评分系统,计时器,和剪贴板,VirginiaApgar医生把注意力从产妇转移到新生儿,因此提高了婴儿死亡率。
    Dr. Virginia Apgar was an American anesthesiologist and researcher who heavily influenced the development of neonatal resuscitation in the immediate postpartum period with her simple five-point scoring system. Today, the APGAR scoring system is used around the world in delivery rooms to guide clinicians in the evaluation of newborns and to distinguish which might need urgent resuscitation. With a simple scoring system, timer, and clipboard, Dr. Virginia Apgar shifted focus from the parturient to the neonate, improving infant mortality as a result.
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  • 文章类型: Journal Article
    妊娠期糖尿病(GDM)对母亲和婴儿构成重大健康风险。早期预测和有效管理对于改善结果至关重要。机器学习技术已经成为GDM预测的强大工具。这篇综述汇编和分析了现有的研究,以突出机器学习在GDM预测中应用的关键发现和趋势。对2000年至2023年9月发表的相关研究进行了全面搜索。基于对GDM预测的机器学习的关注,选择了14项研究。对这些研究进行了严格的分析,以确定共同的主题和趋势。审查揭示了几个关键主题。从所审查的研究中确定了能够预测妊娠早期GDM风险的模型。一些研究强调了为特定人群和人口群体定制预测模型的必要性。这些发现强调了针对不同人群的统一指南的局限性。此外,研究强调了将临床数据整合到GDM预测模型中的价值.这种整合改善了诊断患有GDM的个体的治疗和护理递送。虽然不同的机器学习模型显示出了希望,选择和称重变量仍然很复杂。审查的研究提供了对使用机器学习进行GDM预测的复杂性和潜在解决方案的宝贵见解。追求准确,早期预测模型,考虑不同的人口,临床资料,和新出现的数据来源强调了研究人员致力于改善有GDM风险的孕妇的医疗结果.
    Gestational Diabetes Mellitus (GDM) poses significant health risks to mothers and infants. Early prediction and effective management are crucial to improving outcomes. Machine learning techniques have emerged as powerful tools for GDM prediction. This review compiles and analyses the available studies to highlight key findings and trends in the application of machine learning for GDM prediction. A comprehensive search of relevant studies published between 2000 and September 2023 was conducted. Fourteen studies were selected based on their focus on machine learning for GDM prediction. These studies were subjected to rigorous analysis to identify common themes and trends. The review revealed several key themes. Models capable of predicting GDM risk during the early stages of pregnancy were identified from the studies reviewed. Several studies underscored the necessity of tailoring predictive models to specific populations and demographic groups. These findings highlighted the limitations of uniform guidelines for diverse populations. Moreover, studies emphasised the value of integrating clinical data into GDM prediction models. This integration improved the treatment and care delivery for individuals diagnosed with GDM. While different machine learning models showed promise, selecting and weighing variables remains complex. The reviewed studies offer valuable insights into the complexities and potential solutions in GDM prediction using machine learning. The pursuit of accurate, early prediction models, the consideration of diverse populations, clinical data, and emerging data sources underscore the commitment of researchers to improve healthcare outcomes for pregnant individuals at risk of GDM.
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