fetal demise

胎儿死亡
  • 文章类型: Journal Article
    本研究旨在探讨产前胎儿死亡妇女剖宫产后分娩(TOLAC)的试验,与产妇发病风险升高有关。回顾性多中心。包括单个低段切口后单胎妊娠的TOLAC。比较了产前胎儿死亡的妇女和有存活胎儿的妇女之间的产妇不良结局。根据先前的阴道分娩和引产率,将对照组与病例以1:4的比例进行匹配。单因素分析后进行多因素logistic回归建模。在学习期间,181名妇女经历了产前胎儿死亡,并与724名具有存活胎儿的妇女相匹配。单因素分析显示,产前胎儿死亡的妇女TOLAC失败率明显较低(4.4%vs.25.1%,p<0.01),但复合不良产妇结局的发生率相似(6.1%vs.8.0%,p=0.38)和子宫破裂(0.6%vs.0.3%,p=0.56)。控制混杂因素的多变量分析表明,产前胎儿死亡与活产与复合不良母婴结局无关(aOR0.96,95%CI0.21-4.44,p=0.95)。产前胎儿死亡妇女的TOLAC与不良产妇结局的风险增加无关,同时显示剖宫产后阴道分娩成功率高(VBAC)。
    This study aims to investigate whether trial of labor after cesarean delivery (TOLAC) in women with antepartum fetal death, is associated with an elevated risk of maternal morbidity. A retrospective multicenter. TOLAC of singleton pregnancies following a single low-segment incision were included. Maternal adverse outcomes were compared between women with antepartum fetal death and women with a viable fetus. Controls were matched with cases in a 1:4 ratio based on their previous vaginal births and induction of labor rates. Univariate analysis was followed by multiple logistic regression modeling. During the study period, 181 women experienced antepartum fetal death and were matched with 724 women with viable fetuses. Univariate analysis revealed that women with antepartum fetal death had significantly lower rates of TOLAC failure (4.4% vs. 25.1%, p < 0.01), but similar rates of composite adverse maternal outcomes (6.1% vs. 8.0%, p = 0.38) and uterine rupture (0.6% vs. 0.3%, p = 0.56). Multivariable analyses controlling for confounders showed that an antepartum fetal death vs. live birth isn\'t associated with the composite adverse maternal outcomes (aOR 0.96, 95% CI 0.21-4.44, p = 0.95). TOLAC in women with antepartum fetal death is not associated with an increased risk of adverse maternal outcomes while showing high rates of successful vaginal birth after cesarean (VBAC).
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  • 文章类型: Journal Article
    背景:双胎输血综合征(TTTS)激光手术期间双胎之间的术中输血可能因手术技术而异,并已被提议解释供体双胎存活率的差异。
    目的:本试验比较了两种激光技术:序贯技术,其中从容量耗尽的供体到容量超负荷的受体的动静脉通信在从受体到供体之前被激光阻断;和选择性技术,其中血管通信的闭塞不按特定顺序进行。
    方法:单中心,开放标签,我们进行了随机对照试验,其中TTTS患者被随机分为序贯和选择性激光手术.嵌套在审判中,第二项试验将浅表吻合(动脉和静脉)患者随机分为先消融这些连接(在消融动静脉吻合之前)和后消融.主要结果指标是出生时供体双胞胎的存活率。
    结果:总共642例患者被随机分组。两组供体双胞胎的总体存活率相似(85.6%[274/320]对84.2%[271/322],或1.12[0.73-1.73],P=.605)。在27.6%(177/642)的病例中发生了浅吻合术。与仅有动静脉通信的患者相比,浅表吻合组的供体存活率较低(70.6%[125/177]对90.3%[420/465],OR0.33[0.20-0.54],P<.001)。在浅层吻合的情况下,供者存活率与消融时机或手术技术无关.序贯组与选择性组术后平均大脑中动脉(MCA)收缩期峰值速度(PSV)较低(1.00±0.30对1.06±0.30MoM,P=.003)。事后分析显示,有2个因素与供体双胞胎总体生存率较差相关:供体双胞胎术前关键异常多普勒(CAD)参数的存在/不存在以及动脉动脉吻合(AA)的存在/不存在。根据这些因素,导致4类患者:(1)第1类(54%,347/642),无供体双胞胎CAD无AA:顺序组中供体双胞胎存活率为91.2%,选择性组中为93.8%;(2)类别2(22%,143/642),CAD存在+无AA:供体存活率为89.9%,而非75.7%;(3)类别3(11%,73/642),无CAD+AA存在:供体生存率为94.7%,而非74.3%;(4)第4类(12%,79/642),CAD存在+AA存在:供体存活率为47.6%对64.9%。
    结论:序贯激光技术与选择性激光技术的供体双胞胎存活率没有差异,如果首先消融浅层吻合与最后消融,则没有差异。序贯方法与选择性方法相比,供体双胞胎的术后MCAPSV得到了改善。事后分析表明,根据高风险因素,供体双胞胎的存活可能与激光技术的选择有关。需要进一步的研究来了解使用这些类别来指导手术技术的选择是否会改善结果。
    背景:没有外部资金的NCT02122328。
    BACKGROUND: Intraoperative blood transfer between twins during laser surgery for twin-twin transfusion syndrome can vary by surgical technique and has been proposed to explain differences in donor twin survival.
    OBJECTIVE: This trial compared donor twin survival with 2 laser techniques: the sequential technique, in which the arteriovenous communications from the volume-depleted donor to the volume-overloaded recipient are laser-occluded before those from recipient to donor, and the selective technique, in which the occlusion of the vascular communications is performed in no particular order.
    METHODS: A single-center, open-label, randomized controlled trial was conducted in which twin-twin transfusion syndrome patients were randomized to sequential vs selective laser surgery. Nested within the trial, a second trial randomized patients with superficial anastomoses (arterioarterial and venovenous) to ablation of these connections first (before ablating the arteriovenous anastomoses) vs last. The primary outcome measure was donor twin survival at birth.
    RESULTS: A total of 642 patients were randomized. Overall donor twin survival was similar between the 2 groups (274 of 320 [85.6%] vs 271 of 322 [84.2%]; odds ratio, 1.12 [95% confidence interval, 0.73-1.73]; P=.605). Superficial anastomoses occurred in 177 of 642 cases (27.6%). Donor survival was lower in the superficial anastomosis group vs those with only arteriovenous communications (125 of 177 [70.6%] vs 420 of 465 [90.3%]; adjusted odds ratio, 0.33 [95% confidence interval, 0.20-0.54]; P<.001). In cases with superficial anastomoses, donor survival was independent of the timing of ablation or surgical technique. The postoperative mean middle cerebral artery peak systolic velocity was lower in the sequential vs selective group (1.00±0.30 vs 1.06±0.30 multiples of the median; P=.003). Post hoc analyses showed 2 factors that were associated with poor overall donor twin survival: the presence or absence of donor twin preoperative critical abnormal Doppler parameters and the presence or absence of arterioarterial anastomoses. Depending on these factors, 4 categories of patients resulted: (1) Category 1 (347 of 642 [54%]), no donor twin critical abnormal Doppler + no arterioarterial anastomoses: donor twin survival was 91.2% in the sequential and 93.8% in the selective groups; (2) Category 2 (143 of 642 [22%]), critical abnormal Doppler present + no arterioarterial anastomoses: donor survival was 89.9% vs 75.7%; (3) Category 3 (73 of 642 [11%]), no critical abnormal Doppler + arterioarterial anastomoses present: donor survival was 94.7% vs 74.3%; and (4) Category 4 (79 of 642 [12%]), critical abnormal Doppler present + arterioarterial anastomoses present: donor survival was 47.6% vs 64.9%.
    CONCLUSIONS: Donor twin survival did not differ between the sequential vs selective laser techniques and did not differ if superficial anastomoses were ablated first vs last. The donor twin\'s postoperative middle cerebral artery peak systolic velocity was improved with the sequential vs the selective approach. Post hoc analyses suggest that donor twin survival may be associated with the choice of laser technique according to high-risk factors. Further study is needed to determine whether using these categories to guide the choice of surgical technique will improve outcomes.
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  • 文章类型: Journal Article
    背景:瘘管的患病率和影响在获得紧急产科护理的机会有限的发展中国家更为普遍。因此,在这些环境中的女性经常经历不良的社会心理因素。这项研究的目的是描述剖腹产(CS)后发生泌尿生殖道瘘的刚果妇女的特征,以确定与两种病因相关的特征:(1)长时间的阻塞分娩;(2)阻塞分娩后CS的并发症。
    方法:我们对所有在刚果民主共和国(DRC)偏远地区接受手术治疗的CS后泌尿生殖道瘘患者的提取数据进行了横断面研究。描述性分析描述了与产程梗阻和CS相关的瘘管患者。单变量和多变量逻辑回归模型确定了剖宫产后产科瘘的相关因素。变量包括在基于生物学合理性的逻辑回归模型中。
    结果:在125名患者中,泌尿生殖道瘘的病因归因于77例(62%)的难产和48例(38%)的CS并发症。有瘘管病的妇女,归因于阻碍劳动,在较年轻的年龄(p=.04)和较低的奇偶校验(p=.02)发展瘘管。在到达医院之前尝试分娩与剖宫产后的产科瘘风险增加相关(p<0.01)。
    结论:CS通常适用于长期难产和胎儿死亡后到达医院的妇女,占泌尿生殖道瘘的近40%。产科提供者应在到达时评估产妇状况,以防止不必要的CS,并确定有患瘘管风险的妇女。
    BACKGROUND: The prevalence and impact of fistulas are more common in developing countries with limited access to emergency obstetric care. As a result, women in these settings often experience adverse psychosocial factors. The purpose of this study was to describe the characteristics of Congolese women who developed urogenital fistula following Cesarean sections (CS) to determine the characteristics associated with two etiologies: (1) prolonged obstructed labor; and (2) a complication of CS following obstructed labor.
    METHODS: We performed a cross-sectional study on abstracted data from all patients with urogenital fistula following CS who received care during a surgical campaign in a remote area of the Democratic Republic of the Congo (DRC). Descriptive analyses characterized patients with fistula related to obstructed labor versus CS. Univariate and multivariate logistic regression models identified factors associated with obstetric fistula after cesarean delivery following obstructed labor. Variables were included in the logistic regression models based upon biological plausibility.
    RESULTS: Among 125 patients, urogenital fistula etiology was attributed to obstructed labor in 77 (62%) and complications following CS in 48 (38%). Women with a fistula, attributed to obstructed labor, developed the fistula at a younger age (p = .04) and had a lower parity (p = .02). Attempted delivery before arriving at the hospital was associated with an increased risk of obstetric fistula after cesarean delivery following obstructed labor (p < .01).
    CONCLUSIONS: CS are commonly performed on women who arrive at the hospital following prolonged obstructed labor and fetal demise, and account for almost 40% of urogenital fistula. Obstetric providers should assess maternal status upon arrival to prevent unnecessary CS and identify women at risk of developing a fistula.
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  • 文章类型: Journal Article
    一些研究已经评估了与激光TTTS后胎儿死亡相关的术前和手术因素,然而,这些发现并不完全是决定性的。
    本研究旨在确定胎儿镜下激光光凝术治疗双胞胎对双胞胎输血综合征后单个胎儿死亡(受体和供体双胞胎)的危险因素。
    我们搜索了PubMed,Scopus,从数据库成立到2020年6月,系统地和WebofScience。我们对研究单绒毛膜妊娠合并双胎至双胎输血综合征的胎儿镜激光光凝后胎儿死亡(供体和/或受体)的危险因素进行了系统评价。最初,我们调查了2012年至2020年在我们的2个高容量胎儿中心接受胎儿镜激光光凝治疗的双胎-双胎输血综合征女性队列,以确定供者死亡和受者死亡的危险因素.此外,为了更好地描述这些因素,我们对文献进行了系统回顾.在符合进入标准的研究中,对多种术前因素和手术因素进行了分析.随机效应模型用于汇集标准化的平均差或比值比以及相应的95%置信区间。使用I2值评估异质性。
    在最终分析中,共有514例使用胎儿镜激光光凝治疗的双胎对双胎输血综合征。在逻辑回归之后,供体死亡的重要因素是选择性胎儿生长受限(比值比,1.9;95%置信区间,1.3-2.8;P=.001)和脐动脉血流,供体舒张末期速度缺失或逆转(比值比,2.06;95%置信区间,1.2-3.4;P=.004)。与受体死亡相关的一个重要因素是受体静脉导管中不存在或逆转了a波(比值比,1.74;95%置信区间,1.07-3.13;P=.04)。包括来自23项研究和我们当前队列的数据。分析了4892例使用胎儿镜激光光凝治疗的双胎对双胎输血综合征的妊娠,以了解供体死亡的危险因素。分析了4594例有双胎对双胎输血综合征的妊娠患者的受者死亡情况.在研究中,供者死亡的总发生率为10.9%~35.8%,受者死亡的总发生率为7.3%~24.5%.供者死亡的重要危险因素是双胎估计胎儿体重不一致>25%(比值比,1.86;95%置信区间,1.44-2.4;I2,0.0%),选择性胎儿生长受限(比值比,1.78;95%置信区间,1.4-2.27;I2,0.0%),双胎对双胎输血综合征III期(优势比,2.18;95%置信区间,1.53-3.12;I2,0.0%),供体的脐动脉血流缺乏或舒张末期速度逆转(比值比,2.31;95%置信区间,1.9-2.8;I2,23.7%),供体静脉导管中不存在或逆转a波(赔率比,1.83;95%置信区间,1.45-2.3;I2,0.0%),和动脉吻合的存在(比值比,2.81;95%置信区间,1.35-5.85;I2,90.7%)。序贯选择性凝血对供体死亡具有保护作用(优势比,0.31;95%置信区间,0.16-0.58;I2,0.0%)。受者死亡的重要危险因素是双胞胎对双胞胎输血综合征IV期(优势比,2.18;95%置信区间,1.01-4.6;I2,16.5%),接受者的脐动脉血流缺乏或舒张末期速度逆转(比值比,2.68;95%置信区间,1.91-3.74;I2,0.0%),接受者静脉导管中不存在或逆转a波(赔率比,2.37;95%置信区间,1.55-3.64;I2,60.2%),和大脑中动脉峰值收缩期速度>1.5倍的中位数(比值比,3.06;95%置信区间,1.36-6.88;I2,0.0%)。
    在接受激光治疗的双胎对双胎输血综合征的妇女中,以多普勒研究异常为代表的异常血流模式和低胎儿体重与单胎死亡有关。尽管顺序选择性凝血可以防止供体死亡,动脉吻合的存在与供体死亡密切相关。这项荟萃分析广泛调查了术前和手术因素与胎儿死亡的关联。这些发现可能是重要的住院咨询,为了进一步了解这种疾病,也许在改进手术技术方面。
    Several studies have assessed preoperative and operative factors associated with fetal demise after laser for TTTS, yet these findings are not completely conclusive.
    This study aimed to identify risk factors for single fetal demise (recipient and donor twins) after fetoscopic laser photocoagulation for twin-to-twin transfusion syndrome.
    We searched PubMed, Scopus, and Web of Science systematically from the inception of the database to June 2020. We conducted a systemic review on studies investigating risk factors for fetal demise (donor and/or recipient) after fetoscopic laser photocoagulation in monochorionic pregnancies complicated with twin-to-twin transfusion syndrome. Initially, we investigated the cohort of women with twin-to-twin transfusion syndrome that underwent fetoscopic laser photocoagulation at our 2 high-volume fetal centers between 2012 and 2020 to identify risk factors for donor demise and recipient demise. Furthermore, we conducted a systematic review of the literature to better characterize these factors. Among studies that met the entry criteria, multiple preoperative and operative factors were tabulated. The random-effect model was used to pool the standardized mean differences or odds ratios and corresponding 95% confidence intervals. Heterogeneity was assessed using the I2 value.
    A total of 514 pregnancies with twin-to-twin transfusion syndrome managed with fetoscopic laser photocoagulation were included in the final analysis. Following the logistic regression, factors that remained significant for donor demise were selective fetal growth restriction (odds ratio, 1.9; 95% confidence interval, 1.3-2.8; P=.001) and umbilical artery blood flow with absent or reversed end-diastolic velocity of the donor (odds ratio, 2.06; 95% confidence interval, 1.2-3.4; P=.004). A significant factor associated with recipient demise was absent or reversed a-wave in the ductus venosus of the recipient (odds ratio, 1.74; 95% confidence interval, 1.07-3.13; P=.04). Data from 23 studies and our current cohort were included. A total of 4892 pregnancies with twin-to-twin transfusion syndrome managed with fetoscopic laser photocoagulation were analyzed for risk factors for donor demise, and 4594 pregnancies with twin-to-twin transfusion syndrome were analyzed for recipient demise. Among studies, the overall incidence rates ranged from 10.9% to 35.8% for donor demise and 7.3% to 24.5% for recipient demise. Significant risk factors for donor demise were intertwin estimated fetal weight discordance of >25% (odds ratio, 1.86; 95% confidence interval, 1.44-2.4; I2, 0.0%), selective fetal growth restriction (odds ratio, 1.78; 95% confidence interval, 1.4-2.27; I2, 0.0%), twin-to-twin transfusion syndrome stage III (odds ratio, 2.18; 95% confidence interval, 1.53-3.12; I2, 0.0%), umbilical artery blood flow with absent or reversed end-diastolic velocity of the donor (odds ratio, 2.31; 95% confidence interval, 1.9-2.8; I2, 23.7%), absent or reversed a-wave in the ductus venosus of the donor (odds ratio, 1.83; 95% confidence interval, 1.45-2.3; I2, 0.0%), and presence of arterioarterial anastomoses (odds ratio, 2.81; 95% confidence interval, 1.35-5.85; I2, 90.7%). Sequential selective coagulation was protective against donor demise (odds ratio, 0.31; 95% confidence interval, 0.16-0.58; I2, 0.0%). Significant risk factors for recipient demise were twin-to-twin transfusion syndrome stage IV (odds ratio, 2.18; 95% confidence interval, 1.01-4.6; I2, 16.5%), umbilical artery blood flow with absent or reversed end-diastolic velocity of the recipient (odds ratio, 2.68; 95% confidence interval, 1.91-3.74; I2, 0.0%), absent or reversed a-wave in the ductus venosus of the recipient (odds ratio, 2.37; 95% confidence interval, 1.55-3.64; I2, 60.2%), and middle cerebral artery peak systolic velocity of >1.5 multiple of the median (odds ratio, 3.06; 95% confidence interval, 1.36-6.88; I2, 0.0%).
    Abnormal blood flow patterns represented by abnormal Doppler studies and low fetal weight were associated with single fetal demise in women with twin-to-twin transfusion syndrome undergoing laser therapy. Although sequential selective coagulation was protective against donor demise, the presence of arterioarterial anastomoses was considerably associated with donor demise. This meta-analysis extensively investigated the association of a wide range of preoperative and operative factors with fetal demise. These findings may be important inpatient counseling, in further understanding the disease, and perhaps in improving surgical techniques.
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  • 文章类型: Journal Article
    OBJECTIVE: Intra-amniotic injection of digoxin is a well-known method for feticide before inducing a termination of pregnancy (TOP) at 17-24 weeks of gestation. Information on its effectiveness when administered after 24 weeks of gestation is limited. This study evaluated the efficacy of intra-amniotic digoxin injection for inducing fetal demise within 18-24 hours, at 21-30 weeks of gestation, and its safety.
    METHODS: Prospective cohort study.
    METHODS: Tertiary university medical centre.
    METHODS: Women at 21-30 weeks of gestation with a singleton pregnancy, admitted for TOP.
    METHODS: Intra-amniotic injection of 2 mg of digoxin was performed 1 day before medical TOP. Fetal heart activity was evaluated by ultrasound for 18-24 hours after the injection. Serum digoxin level and maternal electrocardiogram (ECG) were evaluated 6, 10, and 20 hours after injection.
    METHODS: Frequency of successful fetal demise.
    RESULTS: Fifty-nine women participated in the study. The mean gestational age was 24+2  weeks (range 21+0 -30+0 ), with 29 (49.2%) beyond 24+0  weeks of gestation. Fetal cardiac activity arrest was achieved in 55/59 cases (93.2%). Normal maternal ECG recordings were noted in all cases. Mean serum digoxin levels 6 and 10 hours after injection were in the therapeutic range (1.3 ± 0.7 ng/l and 1.24 ± 0.49 ng/l, respectively) and below the toxic level (2 ng/l). Extramural delivery following digoxin did not occur. There were no cases of chorioamnionitis.
    CONCLUSIONS: Intra-amniotic digoxin for feticide at 21-30 weeks of gestation in a singleton pregnancy appears effective and safe before TOP at advanced gestational ages.
    CONCLUSIONS: This study shows that feticide by intra-amniotic digoxin injection at 21-30 weeks of gestation appears effective and safe.
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  • 文章类型: Journal Article
    OBJECTIVE: To investigate the ultrasound characteristics and outcome of pregnancies with fetal intra-abdominal umbilical vein varix (FIUVV).
    METHODS: Cases of FIUVV managed at our tertiary university hospital over an 8-year period were reviewed. Information retrieved included gestational age and diameter of the umbilical varix at diagnosis, increase in varix diameter, associated ultrasound or chromosomal anomalies and pregnancy outcome. Furthermore, a systematic review and meta-analysis of series of FIUVV in the literature was performed to assess the incidence of chromosomal anomalies, small-for-gestational age infants and intrauterine fetal demise (IUFD), and to pool odds ratio (OR) estimates on the relationship between the incidence of these outcomes and the presence of additional associated ultrasound anomalies.
    RESULTS: Thirteen cases of FIUVV were included in the cohort study. Additional ultrasound anomalies were found in two (15.4%) of 13 cases. One case of IUFD was observed and no case of chromosomal anomaly or thrombosis of varix was recorded. A total of five studies comprising 254 cases met the inclusion criteria of the systematic review. FIUVV was associated with additional ultrasound anomalies (non-isolated FIUVV) in 19% (95% CI, 10.9-29.1%) of cases. No case of chromosomal abnormality or IUFD was reported in fetuses with isolated FIUVV. In contrast, in the group of non-isolated FIUVV, the incidence of chromosomal anomalies was 19.6% and that of IUFD was 7.3%, with ORs of 14.8 (95% CI, 2.9-73.0) and 8.2 (95% CI, 1.05-63.1), respectively, when compared with the group of isolated FIUVV.
    CONCLUSIONS: When isolated, the outcome of cases affected by FIUVV is usually favorable. In about 20% of cases, additional ultrasound anomalies are found, which are associated with an increased risk for chromosomal abnormalities and IUFD. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
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  • 文章类型: Journal Article
    OBJECTIVE: Induction of fetal demise before second-trimester termination is performed for a number of reasons. One method for inducing fetal demise is via sonographically guided intracardiac potassium chloride (KCl) injection. We performed a retrospective cohort study to determine the efficacy and safety of intracardiac KCl injection as a method of second-trimester induced fetal demise.
    METHODS: We reviewed records from patients who were referred for induced fetal demise from October 2002 to October 2011. We excluded patients undergoing selective fetal reduction in multiple gestations. Procedural complications, the dose of KCl, and the number of failed procedures were determined.
    RESULTS: Of the 192 completed procedures, 191 were successful (99.5%). The median gestational age at termination was 22 weeks (range, 15.4-24.9 weeks), and most terminations were surgical (68.0%). Major indications for termination were fetal anomalies (41.6%), unwanted pregnancy (20.8%), and aneuploidy (15.7%). The median dose of KCl was 10 mL (range, 3-40 mL). We found a significant correlation between the dose of KCl and estimated fetal weight. There was no significant correlation between the dose of KCl and body mass index or gestational age. We had 1 maternal complication of a seizure after needle placement but before KCl injection.
    CONCLUSIONS: Intracardiac KCl injection is an effective and safe method for induced fetal demise.
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