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BACKGROUND: Rapid delivery is important in cases of umbilical cord prolapse to prevent hypoxic injury to the fetus/neonate. However, the optimal decision-to-delivery interval remains controversial. OBJECTIVE: The aim of the study was to investigate the association between the decision-to-delivery interval in women with umbilical cord prolapse, stratified by fetal heart rate pattern at diagnosis, and neonatal outcome. STUDY DESIGN: The database of a tertiary medical center was retrospectively searched for all cases of intrapartum cord prolapse between 2008 and 2021. The cohort was divided into three groups according to findings on the fetal heart tracing at diagnosis: 1) bradycardia; 2) decelerations without bradycardia; and 3) reassuring heart rate. The primary outcome measure was fetal acidosis. The correlation between cord blood indices and decision-to-delivery interval was analyzed using Spearman's rank correlation coefficient. RESULTS: Of the total 103,917 deliveries performed during the study period, 130 (0.13%) were complicated by intrapartum umbilical cord prolapse. Division by fetal heart tracing yielded 22 women (16.92%) in group 1, 41 (31.53%) in group 2, and 67 (51.53%) in group 3. The median decision-to-delivery interval was 11.0 min (IQR 9.0-15.0); the interval was more than 20 min in 4 cases. The median cord arterial blood pH was 7.28 (IQR 7.24-7.32); pH was less than 7.2 in 4 neonates. There was no correlation of cord arterial pH with decision-to-delivery interval (Spearman's Ρ = - 0.113; Ρ = 0.368) or with fetal heart rate pattern (Spearman's Ρ = .425; Ρ = .079, Ρ = - .205; Ρ = .336, Ρ = - .324; Ρ = .122 for groups 1-3, respectively). CONCLUSION: Intrapartum umbilical cord prolapse is a relatively rare obstetric emergency with an overall favorable neonatal outcome if managed in a timely manner, regardless of the immediately preceding fetal heart rate. In a clinical setting which includes a high obstetric volume and a rapid, protocol-based, response, there is apparently no significant correlation between decision-to-delivery interval and cord arterial cord pH.
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Bradicardia , Doenças Fetais , Gravidez , Recém-Nascido , Feminino , Humanos , Estudos Retrospectivos , Bradicardia/etiologia , Bradicardia/diagnóstico , Doenças Fetais/diagnóstico , Cordão Umbilical , Sangue Fetal , ProlapsoRESUMO
BACKGROUND: True knot of the umbilical cord (TKUC) is found in 0.3-2.1% of pregnancies and is associated with an increased risk of adverse perinatal outcomes. METHODS: A retrospective cohort study including all singleton pregnancies delivered from 2011 to 2019 was performed. Diagnosis of TKUC was made postnatally, immediately after delivery of the baby. Comparison was made between pregnancies with and without TKUC regarding maternal, fetal and neonatal adverse outcome. RESULTS: Overall, 867/85,541 (1%) pregnancies were diagnosed with TKUC. Maternal age, BMI, gravidity and parity were significantly higher in pregnancies with TKUC as well as higher rate of induction of labor, meconium-stained amniotic fluid, and delivery prior to 37 weeks. The rate of cesarean deliveries due to non-reassuring-fetal monitor was significantly higher in pregnancies with TKUC. Overall, there were 2.5% IUFD in pregnancies with TKUC vs. 1% in pregnancies without TKUC (p < 0.001). Importantly, the rate of IUFD prior to 37 weeks of gestation was not significantly higher in the group with TKUC, however, the rate of IUFD after 37 weeks of gestation was 10 folds higher in fetuses with TKUC, 0.9% vs. 0.08% (p < 0.001). Significantly, more neonates with TKUC needed phototherapy or suffered from hypoglycemia. There were no differences in the 5 min Apgar scores, admission to the NICU and number of days of hospitalization. CONCLUSION: Pregnancies complicated with TKUC are associated with a tenfold higher risk of IUFD beyond 37 weeks of gestation. To the results of this study suggest that it would be prudent to induce labor around 37 weeks of gestation in pregnancies with prenatal diagnosis of TKUC. It may be warranted to use continuous fetal monitoring during labor and delivery in those cases were antenatal diagnosis of TKUC is made.
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Complicações na Gravidez , Índice de Apgar , Feminino , Humanos , Lactente , Recém-Nascido , Período Pós-Parto , Gravidez , Resultado da Gravidez , Estudos Retrospectivos , Cordão UmbilicalRESUMO
BACKGROUND: Gestational hypertensive (GH) disorders remain a major obstetric problem. OBJECTIVES: To evaluate the incidence of gestational hypertensive disorders among participants undergoing intrauterine insemination (IUI) after exposure to various levels of sperm from sperm donation (SD). METHODS: A retrospective case-control study was conducted at a single tertiary medical center between 2011 and 2019. Participants conceived via IUI using SD from a single sperm bank and had a successful singleton birth. Group 1 conceived during 1-2 cycles of IUI from the same sperm donor; whereas Group 2 after 3+ cycles. RESULTS: Overall 171 patients (Group 1 = 81, Group 2 = 90) met inclusion criteria. Participants showed no differences in age, chronic medical conditions, or history of pregnancy complications. The groups differed in gravidity and parity. The factors positively associated with Group 1 included either preeclampsia or GH (11 [13.5%] vs. 1 [1.1%], P = 0.001) and GH alone (8 [9.9%] vs. 1 [1.1%], P = 0.014). Newborns from Group 1 had a statistically significant lower birth weight than those from Group 2 (3003 grams ± 564.21 vs. 3173 grams ± 502.59, P = 0.039). GH was more prevalent in Group 1 (P = 0.008) than a control group of 45,278 participants who conceived spontaneously. No significant differences were observed between Group 2 and the control group. CONCLUSIONS: The incidence of GH and preeclampsia in participants was higher among those exposed to 1-2 cycles than those exposed to 3+ cycles of IUI.
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Hipertensão Induzida pela Gravidez , Inseminação Artificial Heteróloga , Pré-Eclâmpsia , Recém-Nascido , Gravidez , Feminino , Humanos , Masculino , Hipertensão Induzida pela Gravidez/epidemiologia , Taxa de Gravidez , Pré-Eclâmpsia/epidemiologia , Estudos Retrospectivos , Estudos de Casos e Controles , Incidência , Sêmen , EspermatozoidesRESUMO
BACKGROUND: The sonographic assessment of estimated fetal weight (EFW) is essential for identification of fetuses in weight extremes and aids in peripartum management. However, there are inconsistent reports regarding EFW accuracy. OBJECTIVES: To examine maternal and fetal determinants associated with unreliable EFW. METHODS: A retrospective case-control study was conducted at a single, tertiary medical center between 2011 and 2019. All term, singleton deliveries with a sonographic EFW within 2 weeks of delivery were included. Unreliable EFW was defined as > 500 grams discordance between it and the actual birth weight. We allocated the study cohort into two groups: unreliable EFW (cases) and accurate EFW (controls). RESULTS: Overall, 41,261 deliveries met inclusion criteria. Of these, 1721 (4.17%) had unreliable EFW. The factors positively associated with unreliable EFW included body mass index > 30 kg/m2, weight gain > 20 kg, higher amniotic fluid index, pregestational diabetes, gestational age > 410/7, and birth weight ≥ 4000 grams. On multiple regression analysis, pregestational diabetes (odds ratio [OR] 2.22, 95% confidence interval [95%CI] 1.56-3.17, P < 0.001) and a higher birth weight (OR 1.91, 95%CI 1.79-2.04, P < 0.001) were independently associated with unreliable EFW. On analysis of different weight categories, pregestational diabetes was associated with unreliable EFW only among birth weights ≥ 3500 grams (OR 3.28, 95%CI 1.98-5.44, P< 0.001) and ≥ 4000 grams (OR 4.27, 95%CI 2.31-7.90, P < 0.001). CONCLUSIONS: Pregestational diabetes and increased birth weight are independent risk factors for unreliable EFW and should be considered when planning delivery management.
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Peso ao Nascer , Peso Fetal , Cuidado Pré-Natal/métodos , Ultrassonografia Pré-Natal , Adulto , Diabetes Mellitus/epidemiologia , Precisão da Medição Dimensional , Feminino , Idade Gestacional , Humanos , Valor Preditivo dos Testes , Gravidez , Terceiro Trimestre da Gravidez , Prognóstico , Fatores de Risco , Ultrassonografia Pré-Natal/métodos , Ultrassonografia Pré-Natal/normasRESUMO
BACKGROUND: Channeling medical resources for coronavirus disease-2019 (COVID-19) management can potentially endanger routine healthcare practices. As a preventive measure, a department of obstetrics and gynecology in Israel constructed a separate, designated complex for its COVID-19-exposed patients. OBJECTIVES: To evaluate the effect of the COVID-19 pandemic infection control measures on obstetric care in the obstetrical emergency department and delivery unit. METHODS: The authors collected data retrospectively from February 2020 to March 2020 and compared it to data of a parallel period in 2019. RESULTS: From 1 February 2020 to 28 March 2020, 3897 women were referred to the emergency department (ED), compared to 4067 the previous year. Mean duration of treatment until decision and referral indications did not differ between 2020 and 2019 (207 vs. 220 minutes, P = 0.26; urgent referrals 58.8% vs. 59.2%, P = 0.83). A per-week comparison showed a significant reduction in ED referrals only in the last week of the period (337 [2020] vs. 515 [2019], P < 0.001). The proportion of women admitted to the delivery unit in active labor was significantly higher in the last three weeks (39.1% vs. 28.2%, P = 0.005). During February and March 2020, 1666 women delivered, compared to 1654 during February and March 2019. The proportion of types and modes of delivery did not differ. In a per-week comparison, the number of deliveries did not differ (mean 208 vs. 206, P = 0.88). CONCLUSIONS: With timely preparation and proper management, negative impact of COVID-19 can be reduced in obstetrical emergency departments.
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COVID-19/prevenção & controle , Parto Obstétrico/estatística & dados numéricos , Serviço Hospitalar de Emergência/estatística & dados numéricos , Obstetrícia/estatística & dados numéricos , Adulto , Feminino , Humanos , Controle de Infecções , Tempo de Internação/estatística & dados numéricos , Admissão do Paciente/estatística & dados numéricos , Encaminhamento e Consulta/estatística & dados numéricos , SARS-CoV-2RESUMO
We evaluated the role of 18-fluoro-2-deoxy-d-glucose positron emission tomography ([18F] FDG-PET) with computed tomography (CT) (PET/CT) as a diagnostic and prognostic tool in newly diagnosed marginal zone lymphoma (MZL) patients. This is a retrospective cohort study of patients with newly diagnosed MZL, treated with immunotherapy, chemotherapy regimens, surgery, or Helicobacter pylori eradication between 2008 and 2016 in a single tertiary center. Only patients who had a pretreatment PET/CT (P-PET/CT) were included. P-PET/CT, interim (I-PET/CT), and end-of-treatment PET/CT (E-PET/CT) studies were reviewed. P-PET/CT results were reported using two methods of evaluation, qualitative and semi quantitative: visual assessment (VAS) and maximal standardized uptake value (SUVmax), and I-PET and E-PET results were reported by Deauville 5-point score (DS) evaluation as well. Avidity of PET/CT was defined as abnormal uptake in any of these methods. The primary outcome was the prognostic role of P-PET/CT, I-PET/CT, and E-PET/CT on progression-free survival (PFS) and overall survival (OS). Data of 196 patients with MZL were identified, 110 of which had P-PET/CT and were included in this analysis. Median age was 67 years (range 18-93). The median follow-up period was 63 months (range 3-278). The median OS and PFS for the whole cohort were 63 (interquartile range 39-85) and 60 (interquartile range 37-76) months, respectively. The avidity of PET at baseline for the whole cohort was 70% (77/110 patients), for MALT lymphoma, 62.5% (40/64 patients), for NMZL, 76.4% (13/17 patients), and for SMZL, 82.7% (24/29 patients). When adjusted for IPI, sex, and comorbidities, positive E-PET/CT was associated with reduced PFS with a hazard ratio (HR) of 3.4 (95% CI, 1.27-9.14, P = 0.02). Positive E-PET/CT did not correlate with OS. However, there were only three events. P-PET/CT was not predictive of PFS or OS. Our study demonstrates that above 70% of MZL are FDG avid. Positive E-PET/CT is a strong prognostic factor for PFS.
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Glucose-6-Fosfato/análogos & derivados , Infecções por Helicobacter , Helicobacter pylori , Linfoma de Zona Marginal Tipo Células B , Tomografia por Emissão de Pósitrons , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Intervalo Livre de Doença , Feminino , Glucose-6-Fosfato/administração & dosagem , Infecções por Helicobacter/diagnóstico por imagem , Infecções por Helicobacter/mortalidade , Infecções por Helicobacter/terapia , Humanos , Linfoma de Zona Marginal Tipo Células B/diagnóstico por imagem , Linfoma de Zona Marginal Tipo Células B/mortalidade , Linfoma de Zona Marginal Tipo Células B/terapia , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Retrospectivos , Taxa de SobrevidaRESUMO
OBJECTIVE: To determine whether equivocal prelabor rupture of membranes (PROM) cases are associated with adverse outcomes. METHODS: A retrospective study was conducted in a tertiary medical center between July 2012 and March 2022. The cohort comprised all women diagnosed with term PROM (≥37 gestational weeks), divided into two groups. (1) Certain PROM-suggestive history of a watery vaginal discharge confirmed by visualization of fluid leaking from the cervix or pooling in the vagina on speculum examination. (2) Uncertain PROM-suggestive history of a watery vaginal discharge not supported by speculum examination. All patients were hospitalized and gave birth spontaneously or following either expectant management for up to 24 h from PROM or induction. The primary outcome measure was cesarean delivery (CD) rate. Secondary outcome measures were adverse maternal/neonatal events. RESULTS: Of the 2012 women included in the study, 1750 had certain PROM and 262 uncertain PROM. CD rate was 5.8% in the certain PROM group and 8.8% in the uncertain PROM group; the difference was not statistically significant (P = 0.074). There was a significant between-group difference in the rate of CD due to failed induction on univariate analysis (0.69% vs 2.67%, respectively, P = 0.007), but it was not maintained on multivariate logistic regression (odds ratio 0.37, 95% confidence interval: 0.12-1.17). Other maternal and neonatal outcomes were similar in the two groups. CONCLUSION: Our findings indicate that following the same management guidelines for equivocal cases of ruptured membranes as for confirmed cases of term PROM did not compromise maternal or fetal outcomes.
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BACKGROUND: The third stage of labor is a pivotal phase in obstetric care. Management may be physiological or active. Although the use of prophylactic placental cord drainage has been assessed in prior data, there is still no clear-cut evidence supporting its effectiveness in improving key obstetric outcomes. OBJECTIVE: The aim of the study was to investigate the impact of placental cord drainage during the third stage of labor on the amount of maternal bleeding, duration of the third stage, and incidence of postpartum hemorrhage. STUDY DESIGN: A randomized controlled trial was conducted at a high-volume tertiary obstetric center between May 2021 and December 2022. A total of 212 pregnant women with a singleton uncomplicated pregnancy were randomly assigned to undergo placental cord drainage or standard care without drainage. The randomization was manual, using premarked cards drawn by the participants. The power calculation determined a sample size of 92 participants per group to achieve 80% power at a 5% significance level, aiming to detect 20% difference in bleeding amount between the groups. In practice, we included more than 100 women in each group. The primary outcome was the amount of bleeding during the third stage of labor, while secondary outcomes included the duration of the third stage and incidence of postpartum hemorrhage. After delivery, all participants received 10 units of oxytocin via intravenous drip, and delayed cord clamping was performed. In the study group, the maternal umbilical cord was then unclamped. Blood was allowed to drain into a plastic bag placed under the women's buttocks. If an episiotomy or perineal tear was observed, pressure packing was applied to reduce bleeding. The collected blood was measured in milliliters after placental expulsion. RESULTS: A total of 212 women were recruited of whom 104 underwent placental cord drainage and 108 received standard care without drainage. No significant differences were observed between the intervention and control groups in mean duration of the third stage of labor (10.56±6.12 vs 10.95±6.33 minutes, P=.65), incidence of postpartum hemorrhage (3.84% vs 7.41%, P=.38), or mean amount of bleeding during the third stage of labor (292±200 vs 300±242 mL, P=.79). Furthermore, there were no significant between-group differences in the mean amount of bleeding on separate analysis of nulliparous women (356±246 vs 330±240 mL, P=.68), multiparous women (265±171 vs 289±244 mL, P=.50), women who were not exposed to external oxytocin during labor (287±204 vs 317±250 mL, P=.59), and women who were exposed to external oxytocin (296±198 vs 289±238 mL, P=.39). CONCLUSION: Placental cord drainage during the third stage of labor showed no statistically significant impact on bleeding amount, third-stage length, or postpartum hemorrhage rate. The findings suggest that placental cord drainage may not offer additional benefits in preventing postpartum hemorrhage in women with uncomplicated pregnancies.
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OBJECTIVE: Evaluation of preeclampsia (PE) incidence among participants undergoing in vitro fertilization (IVF) after various cycles of sperm donation (SD) via intrauterine inseminations (IUI) or IVF. STUDY DESIGN: A retrospective case-control study was conducted at a single tertiary medical center between 2011 and 2019 which included participants who conceived via IVF using SD from a single sperm bank and had a successful singleton birth at Sheba Medical Center. The study cohort was divided into two groups: Group 1 (participants who conceived via IVF after 0-1 cycles of IUI or IVF from the same sperm donor) and Group 2 (participants who conceived via IVF after 2 or more cycles of IUI or IVF from the same sperm donor). Baseline characteristics and pregnancy outcomes between the two groups were compared. In addition, a comparison between the study groups and a control of participants of the same age who conceived spontaneously and had a singleton birth at Sheba Medical Center during the same period with a record of up to two previous deliveries was done. RESULTS: A total of 228 participants conceived through IVF from SD and met the inclusion criteria. Of these, 110 were defined as Group 1 and 118 as Group 2. The participants showed no differences in their age, gravidity and parity, chronic medical conditions, or history of pregnancy complications. Preeclampsia was positively associated with Group 1 (9 [8.2%] vs. 2 [1.7%], P = 0.022). PE was observed to be more prevalent in Group 1 (P < 0.001) when compared to a control group of 45,278 participants who conceived spontaneously. No significant differences were observed in comparing Group 2 with the same control group. CONCLUSION: The incidence of PE was higher among participants who were exposed to 0-1 IUI or IVF cycles than in those who were exposed to 2 or more cycles of IUI or IVF from the same sperm donor. On comparing both groups with a control group, the incidence of PE was higher in participants who were exposed to 0-1 cycles, while there was no difference in participants exposed to 2 or more cycles. IMPLICATIONS STATEMENT: If there is a statistically significant increase in the incidence of PE when conception occurred following fewer sperm exposures, then there may be a correlation between these two. The reason for this is not entirely clear, but based on former literature, we hypothesize it may be related to the fact that repeated exposures to paternal antigens may alter the maternal immune response causing a better adaptation to the semi-allogenic nature of the fetus, its paternal half.
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Pré-Eclâmpsia , Gravidez , Feminino , Humanos , Masculino , Pré-Eclâmpsia/epidemiologia , Estudos Retrospectivos , Estudos de Casos e Controles , Incidência , Sêmen , Fertilização in vitro , Fertilização , EspermatozoidesRESUMO
OBJECTIVE: Accurate prediction of vaginal birth after cesarean is crucial for selecting women suitable for a trial of labor after cesarean (TOLAC). We sought to develop a machine learning (ML) model for prediction of TOLAC success and to compare its accuracy with that of the MFMU model. METHODS: All consecutive singleton TOLAC deliveries from a tertiary academic medical center between February 2017 and December 2018 were included. We developed models using the following ML algorithms: random forest (RF), regularized regression (GLM), and eXtreme gradient-boosted decision trees (XGBoost). For developing the ML models, we disaggregated BMI into height and weight. Similarly, we disaggregated prior arrest of progression into prior arrest of dilatation and prior arrest of descent. We applied a nested cross-validation approach, using 100 random splits of the data to training (80%, 792 samples) and testing sets (20%, 197 samples). We used the area under the precision-recall curve (AUC-PR) as a measure of accuracy. RESULTS: Nine hundred and eighty-nine TOLAC deliveries were included in the analysis with an observed TOLAC success rate of 85.6%. The AUC-PR in the RF, XGBoost and GLM models were 0.351±0.028, 0.350±0.028 and 0.336±0.024, respectively, compared to 0.325±0.067 for the MFMU-C. The algorithms performed significantly better than the MFMU-C (p-values = .0002, .0004, .0393 for RF, XGBoost, GLM respectively). In the XGBoost model, eight variables were sufficient for accurate prediction. In all ML models, previous vaginal delivery and height were among the three most important predictors of TOLAC success. Prior arrest of descent contributed to prediction more than prior arrest of dilatation, maternal height contributed more than weight. CONCLUSION: All ML models performed significantly better than the MFMU-C. In the XGBoost model, eight variables were sufficient for accurate prediction. Prior arrest of descent and maternal height contribute to prediction more than prior arrest of dilation and maternal weight.