Search

Objective: With inconsistencies regarding the possible effect of hyperemesis gravidarum on the course of pregnancy, this research aimed to study the association between hyperemesis gravidarum and pregnancy outcomes, while also addressing the trimester of diagnosis and severity., Methods: A retrospective cohort study was performed, including all singleton deliveries of mothers from the largest health maintenance organization in the country, in a single tertiary hospital between 1991 and 2021. The incidence of adverse pregnancy outcomes was compared between pregnancies with and without hyperemesis gravidarum diagnosis. Multivariable generalized estimation equation binary models were used to study the association between maternal hyperemesis gravidarum, trimester of diagnosis and hyperemesis gravidarum severity and the studied outcomes., Results: The study population included 232 476 pregnancies, of which 3227 (1.4%) were complicated with hyperemesis gravidarum. Women with hyperemesis gravidarum were more likely to deliver preterm (adj. OR = 1.33, 95% CI: 1.18-1.50), a newborn with low birthweight (adj. OR = 1.52, 95% CI: 1.16-1.98, only if diagnosed in the second trimester), and to have a cesarean delivery (adj. OR = 1.20, 95% CI: 1.09-1.32). They were less likely to deliver small gestational age newborn (adj. OR = 0.82, 95% CI: 0.69-0.99) and their offspring to experience perinatal mortality (adj. OR = 0.54, 95% CI: 0.31-0.93, among mild cases only). A dose-response association was observed between preterm birth and hyperemesis gravidarum (adj. OR = 1.26; 95% CI: 1.11-1.44, for mild cases and adj. OR = 2.04; 95% CI: 1.31-3.19, for severe cases)., Conclusions: Hyperemesis gravidarum is associated with an increased risk for adverse pregnancy outcomes including mainly preterm delivery in a dose-response manner and when diagnosed during the second trimester., (© 2024 The Author(s). International Journal of Gynecology & Obstetrics published by John Wiley & Sons Ltd on behalf of International Federation of Gynecology and Obstetrics.)

Objective: To identify risk factors for developing early postpartum hemorrhage (PPH) and to examine whether risk factors vary according to severity and mode of delivery., Methods: A population-based cohort study was conducted in which all deliveries at a tertiary medical center were included. Risk factors for developing early PPH were compared based on the severity of bleeding as well as the mode of delivery. Multiple logistic regression models were used to control for confounders., Results: Among 322 497 deliveries included in the analysis, early PPH complicated 1811 (0.56%) of all deliveries. Among all cases of early PPH, 505 deliveries (28%) were complicated with severe PPH. Using a logistic regression model, in vitro fertilization (IVF) pregnancy, previous cesarean delivery (CD), pre-eclampsia, placental abruption, and uterine rupture were independently associated only with severe early PPH, while non-progressive second stage of labor, induction of labor, and large for gestational age were independently associated with both severe and mild early PPH. When applying an additional logistic regression model, whereas IVF pregnancy, pre-eclampsia, and large for gestational age were independently associated with early PPH among vaginal deliveries only, placenta previa was independently associated with early PPH among CD only., Conclusions: Independent risk factors for developing severe PPH solely include IVF pregnancy, previous CD, pre-eclampsia, placental abruption, and uterine rupture. IVF pregnancy, pre-eclampsia, and large for gestational age are independent risk factors for early PPH following vaginal delivery, while placenta previa is independently associated with early PPH after CD only. Due to the recognition of the importance of both the provider and institutional planning and preparation for PPH, the study's results should be viewed within the scope of its retrospective cohort design., (© 2024 International Federation of Gynecology and Obstetrics.)

Objectives: To compare the long-term respiratory morbidity of offspring born by cesarean delivery for breech presentation with that of those delivered vaginally., Methods: A population-based cohort analysis including all singleton breech deliveries between the years 1991 and 2014, comparing long-term respiratory morbidity of offspring born in breech presentation, according to mode of delivery. Offspring with congenital malformations, perinatal deaths, and instrumental deliveries were excluded. Respiratory morbidity included hospitalizations (up to age 18 years), as recorded in hospital records. A Kaplan-Meier survival curve compared cumulative respiratory morbidity. A Weibull parametric survival model controlled for confounders and repeat deliveries., Results: A total of 7337 breech deliveries were included; 6376 (86.9%) cesarean deliveries and 961 (13.1%) vaginal breech deliveries. The Kaplan-Meier survival curve demonstrated higher cumulative incidence of respiratory morbidity in the cesarean delivery group compared with vaginal delivery (log rank test P = 0.006). Using a Weibull parametric survival model to control for confounders, cesarean delivery was found to be an independent risk factor for long-term respiratory morbidity of the offspring (adjusted hazard ratio 1.87, 95% confidence interval 1.32-2.65, P < 0.001)., Conclusions: Cesarean versus vaginal delivery for breech presentation is an independent risk factor for long-term pediatric respiratory morbidity of the offspring., (© 2022 International Federation of Gynecology and Obstetrics.)

Objective: To identify first pregnancy risk factors for placental abruption in subsequent pregnancy., Methods: In a population-based nested case-control study, cases were defined as women with placental abruption in their second pregnancy, and controls as women without abruption. A total of 43 328 women were included in the study, 0.4% (n = 186) of second pregnancies had placental abruption. Multivariable logistic models were used to study the association between first pregnancy complications and placental abruption in subsequent pregnancy., Results: Having either small for gestational age, preterm delivery, pre-eclampsia or cesarean delivery during first pregnancy were independently associated with increased risk for placental abruption, and the risk was higher with any additional complication (age adjusted odds ratio [aOR] 2.00, 95% confidence interval [CI] 1.46-2.74; aOR 3.61, 95% CI 2.23-5.86; and aOR 3.86, 95% CI 1.56-9.56, for one, two, and three or more complications, respectively)., Conclusion: First pregnancy may serve as a window of opportunity to identify women at risk for future placental abruption., (© 2022 International Federation of Gynecology and Obstetrics.)

Objective: To investigate whether pre-eclampsia is a single clinical entity or whether de novo pre-eclampsia and superimposed pre-eclampsia are distinct entities, with respect to baseline maternal characteristics, obstetrical complications, and perinatal outcomes., Methods: A retrospective cohort study comparing singleton pregnancies complicated with de novo pre-eclampsia (n = 10 979, 93%) and superimposed pre-eclampsia (n = 804, 7%). Maternal baseline characteristics, pregnancy and labor complications, and neonatal outcomes were evaluated in the univariate analysis. Multivariable logistic regression models were performed for the prediction of different pregnancy outcomes while controlling for confounders., Results: In the multivariate regression models controlling for confounders, superimposed pre-eclampsia was found to be a significant risk factor for placental dysfunction, a composite outcome composed of severe pre-eclampsia (rather than mild), placental abruption, oligohydramnios, and small-for-gestational-age neonate (odds ratio [OR] 2.23, 95% confidence interval [CI] 1.90-2.62, P < 0.001), preterm delivery (OR 2.79, 95% CI 2.39-3.26, P < 0.001), and perinatal mortality (OR 1.79, 95% CI 1.11-2.88, P = 0.02)., Conclusion: De novo and superimposed pre-eclampsia demonstrated significant differences in most studied variables, suggesting that these may be two distinct clinical syndromes. In our population, superimposed pre-eclampsia was found to be significantly associated with adverse pregnancy outcomes such as placental dysfunction, preterm delivery, and perinatal mortality compared with de novo pre-eclampsia., (© 2022 International Federation of Gynecology and Obstetrics.)

Objective: To identify risk factors in first pregnancy for perinatal mortality in the subsequent pregnancy., Methods: A retrospective population-based nested case-control study was conducted, including all women with two first singleton consecutive deliveries. Women with perinatal mortality in their first pregnancy were excluded, and cases with perinatal mortality in the second pregnancy were compared with controls who delivered a live birth. Characteristics and complications of the first pregnancy were compared between the groups using multivariable logistic models., Results: A total of 43 043 women were included in the study, 385 (0.9%) were cases. Cases, as compared with controls (live births), were younger (22.62 ± 4.0 vs 23.22 ± 4.0 years), with shorter inter-pregnancy interval (1.38 ± 1.55 vs 1.56 ± 1.53 years), and were more likely to have the following complications in their first pregnancy: severe pre-eclampsia (3.4% vs 1.7%), small for gestational age (12.5% vs 8.0%), preterm delivery (17.7% vs 7.8%), and congenital or chromosomal malformations (9.6% vs 5.9%). In multivariable analysis the risk for perinatal mortality was greater with each additional complication (adjused odds ratio [aOR] 1.64, 95% confidence interval [CI] 1.30-2.07, P < 0.001; aOR 2.55, 95% CI 1.61-4.04, P < 0.001; aOR 7.88, 95% CI 3.81-16.29, P < 0.001 for one, two, and three or more complications, compared with no complications, respectively)., Conclusion: Complications in first pregnancy ending with live birth are associated with increased risk for perinatal mortality in a subsequent pregnancy., (© 2021 International Federation of Gynecology and Obstetrics.)

Objective: To evaluate whether neutrophil-to-lymphocyte ratio (NLR), a well-established inflammatory marker, can be used as an early predictor for small-for-gestational-age (SGA) neonates and other adverse pregnancy outcomes., Methods: A case-control study compared first-trimester hematological biomarkers in pregnancies of patients with and without SGA (n=149, n=151, respectively). Demographic, clinical, and obstetrical characteristics and first-trimester complete blood count were retrieved. Woman with singleton pregnancies who delivered at Soroka University Medical Center between January 2015 and December 2016 were included. Patients with known maternal infections, relevant medications, hematological conditions, and chronic diseases that may alter the blood count, those with multiple pregnancies, and those with congenital or chromosomal abnormalities were excluded. After univariate analysis, a linear regression model was constructed to assess the association between hematological indices and SGA. Receiver operating curves were constructed to evaluate the sensitivity and specificity of NLR., Results: First-trimester NLR values of the SGA group were significantly higher compared to controls (3.03 ± 1.68 vs 2.63 ± 1.2, P=0.016). Significantly higher levels of NLR were noted among the severely (<3%) SGA neonates (3.12 ± 1.62 vs 2.62 ± 1.2; P=0.034)., Conclusion: NLR may be an early, clinically useful marker in the prediction of SGA. As blood samples are routinely collected, correct implication of this result may serve as a valuable non-invasive, low-cost, readily available predicting tool., (© 2020 International Federation of Gynecology and Obstetrics.)

Objective: To investigate whether delivering a small-for-gestational-age (SGA) newborn is a risk factor for subsequent long-term maternal cardiovascular morbidity., Methods: Data were analyzed from consecutive pregnant women who delivered at Soroka University Medical Center, Beer-Sheva, Israel, between 1988 and 1999, and were followed-up retrospectively until 2010. Long-term cardiovascular morbidity was compared among women with and without SGA neonates., Results: During the study period, 47 612 deliveries met the inclusion criteria, and 4411 (9.3%) women delivered an SGA neonate. Delivery of an SGA neonate was a risk factor for long-term complex cardiovascular events, including congestive heart failure, hypertensive heart and kidney disease, and acute cor pulmonale (odds ratio [OR], 2.3; 95% confidence interval [CI], 1.3-4.4; P = 0.006); and long-term cardiovascular mortality (OR, 3.4; 95% CI, 1.5-7.6; P = 0.006). Women who delivered an SGA neonate had a significantly higher risk for cardiovascular mortality during the follow-up period (Kaplan-Meier survival analysis, P = 0.002). Delivery of an SGA neonate remained an independent risk factor for long-term maternal cardiovascular mortality (Cox multivariable regression: adjusted hazard ratio, 3.5; 95% CI, 1.5-8.2; P = 0.004)., Conclusion: Delivery of an SGA neonate is an independent risk factor for long-term cardiovascular morbidity in a follow-up period of more than 10 years., (© 2013.)

Objective: To investigate factors associated with latent syphilis and pregnancy outcome among women with latent syphilis., Methods: A retrospective population-based study was conducted to compare all pregnancies among women with and without latent syphilis at Soroka University Medical Center, Be'er-Sheva, Israel, between 1988 and 2010. Stratified analysis using a multiple logistic regression model was performed to control for confounders., Results: Of the 219656 deliveries during the study period, 159 (0.1%) involved women with latent syphilis. Multivariate analysis with backward elimination revealed the following conditions to be significantly associated with latent syphilis: fetal growth restriction (odds ratio [OR] 2.20; 95% confidence interval [CI], 1.07-4.49; P=0.03); drug abuse (OR 9.95; 95% CI, 1.31-75.46; P=0.02); tobacco use (OR 3.35; 95% CI, 1.74-6.45; P<0.05); and Jewish (vs Bedouin) ethnicity (OR 4.05; 95% CI, 2.65-6.20; P<0.05)., Conclusion: Women with latent syphilis are at risk for adverse maternal and perinatal outcomes, including fetal growth restriction. Careful surveillance of these high-risk pregnancies should be considered., (Copyright © 2012 International Federation of Gynecology and Obstetrics. Published by Elsevier Ireland Ltd. All rights reserved.)