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Karimi A, Sayehmiri K, Vaismoradi M, Dianatinasab M, Daliri S. Vaginal bleeding in pregnancy and adverse clinical outcomes: a systematic review and meta-analysis. J OBSTET GYNAECOL 2024; 44:2288224. [PMID: 38305047 DOI: 10.1080/01443615.2023.2288224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 11/20/2023] [Indexed: 02/03/2024]
Abstract
Background: Vaginal bleeding during pregnancy has been recognised as a significant risk factor for adverse pregnancy outcomes. This study aimed to investigate the association between vaginal bleeding during the first trimester of pregnancy and clinical adverse effects using a systematic review and meta-analysis.Methods: Databases of Scopus, Web of Science, PubMed (including Medline), Cochrane Library and Science Direct were searched until June of 2023. Data analysis using statistical test fixed- and random-effects models in the meta-analysis, Cochran and meta-regression. The quality of the eligible studies was assessed by using the Newcastle-Ottawa Scale checklist (NOS).Results: A total of 46 relevant studies, with a sample size of 1,554,141 were entered into the meta-analysis. Vaginal bleeding during the first trimester of pregnancy increases the risk of preterm birth (OR: 1.8, CI 95%: 1.6-2.0), low birth weight (LBW; OR: 2.0, CI 95%: 1.5-2.6), premature rupture of membranes (PROMs; OR: 2.3, CI 95%: 1.8-3.0), abortion (OR: 4.3, CI 95%: 2.0-9.0), stillbirth (OR: 2.5, CI 95%: 1.2-5.0), placental abruption (OR: 2.2, CI 95%: 1.4-3.3) and placenta previa (OR: 1.9, CI 95%: 1.5-2.4).Conclusions: Vaginal bleeding in the first trimester of pregnancy is associated with preterm birth, LBW, PROMs, miscarriage, stillbirth, placental abruption and placenta previa. Therefore, physicians or midwives need to be aware of the possibility of these consequences and manage them when they occur.
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Affiliation(s)
- Arezoo Karimi
- Department of Epidemiology, School of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Kourosh Sayehmiri
- Prevention Center of Social-Mental injuries, Ilam University of Medical Sciences, Ilam, Iran
| | | | - Mostafa Dianatinasab
- Department of Complex Genetics and Epidemiology, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Salman Daliri
- Clinical Research Development Unit, Imam Hossein Hospital, Shahroud University of Medical Sciences, Shahroud, Iran
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Nielsen JR, Kolte AM, Bliddal S, Jørgensen HL, Johnsen MG, Krog MC, Westergaard D, Nielsen HS. Evaluating risk factors in recurrent pregnancy loss: A prospective cohort study and its impact on live birth outcomes. J Reprod Immunol 2024; 165:104297. [PMID: 39029322 DOI: 10.1016/j.jri.2024.104297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 06/24/2024] [Accepted: 07/03/2024] [Indexed: 07/21/2024]
Abstract
Recurrent pregnancy loss (RPL) affects 1-2 % of all couples trying to conceive and is a challenging heterogeneous condition. This study aimed to evaluate the prevalence and impact of various risk factors in patients suffering from RPL. We performed a prospective cohort study including patients at the tertiary RPL Unit in the Capital Region of Denmark between 1st January 2000 and 1st January 2023. The main outcome of the study was the first pregnancy after referral and whether the pregnancy was ongoing at least to the 22nd gestational week. A total of 2555 patients were included in the study, out of whom 1892 patients achieved a pregnancy after referral to the RPL Unit. This resulted in 1103 live births (58.3 %) and 718 pregnancy losses (37.9 %). Maternal age, BMI, smoking status and the number of prior pregnancy losses were negatively correlated with the likelihood of achieving pregnancy. Furthermore, maternal age, prior pregnancy losses, antiphospholipid syndrome (APS) and uterine malformations were associated with reduced birth rates. Patients with secondary RPL had a higher birth rate compared to those with primary RPL, and patients with APS treated with low-molecular-weight heparin (LMWH) demonstrated a significantly increased birth rate compared to untreated APS patients. These findings suggest that certain risk factors significantly impact the likelihood of achieving pregnancy and live birth following RPL, which can be used in patient guidance.
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Affiliation(s)
- Josefine Reinhardt Nielsen
- The Recurrent Pregnancy Loss Unit, The Capital Region, Copenhagen University Hospitals, Hvidovre Hospital, DK-2650, Rigshospitalet, Copenhagen DK-2100, Denmark.
| | - Astrid Marie Kolte
- The Recurrent Pregnancy Loss Unit, The Capital Region, Copenhagen University Hospitals, Hvidovre Hospital, DK-2650, Rigshospitalet, Copenhagen DK-2100, Denmark; Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen DK-2200, Denmark
| | - Sofie Bliddal
- Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen DK-2200, Denmark; Institute for Inflammation Research, Center for Rheumatology and Spine Diseases, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, Copenhagen 2100, Denmark; Department of Medical Endocrinology, Copenhagen University Hospital, Blegdamsvej 9, Copenhagen 2100, Denmark
| | - Henrik Løvendahl Jørgensen
- Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen DK-2200, Denmark; Department of Clinical Biochemistry, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Morten Guldborg Johnsen
- The Recurrent Pregnancy Loss Unit, The Capital Region, Copenhagen University Hospitals, Hvidovre Hospital, DK-2650, Rigshospitalet, Copenhagen DK-2100, Denmark
| | - Maria Christine Krog
- The Recurrent Pregnancy Loss Unit, The Capital Region, Copenhagen University Hospitals, Hvidovre Hospital, DK-2650, Rigshospitalet, Copenhagen DK-2100, Denmark; Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen DK-2200, Denmark; Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9 ,Copenhagen 2100, Denmark
| | - David Westergaard
- The Recurrent Pregnancy Loss Unit, The Capital Region, Copenhagen University Hospitals, Hvidovre Hospital, DK-2650, Rigshospitalet, Copenhagen DK-2100, Denmark; Department of Obstetrics and Gynaecology, Copenhagen University Hospital Hvidovre, Hvidovre DK-2650, Denmark
| | - Henriette Svarre Nielsen
- The Recurrent Pregnancy Loss Unit, The Capital Region, Copenhagen University Hospitals, Hvidovre Hospital, DK-2650, Rigshospitalet, Copenhagen DK-2100, Denmark; Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen DK-2200, Denmark; Department of Obstetrics and Gynaecology, Copenhagen University Hospital Hvidovre, Hvidovre DK-2650, Denmark
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You SJ, Kang D, Sung JH, Park H, Cho J, Choi SJ, Oh SY, Roh CR. The influence of advanced maternal age on congenital malformations, short- and long-term outcomes in offspring of nulligravida: a Korean National Cohort Study over 15 years. Obstet Gynecol Sci 2024; 67:380-392. [PMID: 38666294 PMCID: PMC11266851 DOI: 10.5468/ogs.24005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 03/08/2024] [Accepted: 04/15/2024] [Indexed: 07/23/2024] Open
Abstract
OBJECTIVE To assess the influence of advanced maternal age on congenital malformations, short- and long-term outcomes in offspring of nulligravida. METHODS A retrospective study was conducted using the Korean National Health Insurance Service database spanning from January 2005 to December 2019. All live-born offspring of nulligravida (n=3,685,817) were included. The maternal age was subdivided into the following subgroups: <25 years (n=153,818), 25-29 years (n=845,355), 30-34 years (n=1,738,299), 35-39 years (n=787,530), 40-44 years (n=151,519), and >44 years (n=9,296). Outcomes were assessed based on International Classification of Diseases-10 codes. Adjusted odds ratios (aOR) were calculated with the group of 25-29 years as a reference. RESULT Most congenital malformations showed an age dependent increase, but cleft lip and abdominal wall defect exhibited a U-shape curve, indicating an increase even in those <25 years old. Similarly, various disorders included in the neonatal composite outcomes from short-term outcomes showed aged dependent escalation. However, the preterm birth from the short-term outcome and most of the long-term developmental outcomes, except for motor developmental delay and Tics, showed a U-shaped pattern. The aOR of autism and cerebral palsy, showing the most obvious U-shaped curved in the long-term outcomes, was 1.50 (95% confidence interval [CI], 1.24-1.82) and 1.54 (95% CI, 1.17-2.03), respectively in the group >44 years old and 1.18 (95% CI, 1.11-1.25) and 1.19 (95% CI, 1.09-1.30) in <25 years old group. CONCLUSION Overall, an advanced maternal age has an age-dependent correlation with most congenital malformations and shortand long-term outcomes of neonates.
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Affiliation(s)
- Su Jin You
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Danbee Kang
- Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Science and Technology, Sungkyunkwan University, Seoul, Korea
- Center for Clinical Epidemiology, Samsung Medical Center, Seoul, Korea
| | - Ji-Hee Sung
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyejeong Park
- Center for Clinical Epidemiology, Samsung Medical Center, Seoul, Korea
| | - Juhee Cho
- Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Science and Technology, Sungkyunkwan University, Seoul, Korea
- Center for Clinical Epidemiology, Samsung Medical Center, Seoul, Korea
| | - Suk-Joo Choi
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Soo-Young Oh
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Cheong-Rae Roh
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Ma S, Hu L, Chen H, Liu Y, Hocher JG, Xu X, Gong F, Krämer BK, Lin G, Hocher B. Inverse association of prepregnancy systolic blood pressure and live birth rate in normotensive women undergoing in vitro fertilization/intracytoplasmic sperm injection. Fertil Steril 2024:S0015-0282(24)00460-6. [PMID: 38782112 DOI: 10.1016/j.fertnstert.2024.05.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 05/25/2024]
Abstract
OBJECTIVE To explore whether maternal baseline systolic blood pressure (SBP) and diastolic blood pressure (DBP) affect pregnancy outcomes particularly in normotensive women (SBP, 90-139 mm Hg; DBP, 60-89 mm Hg) and hypertensive women undergoing in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI). DESIGN Retrospective cohort study. SETTING Maximum care hospital for reproductive medicine. PATIENT(S) This study included 73,462 patients who underwent IVF/ICSI at the Reproductive and Genetic Hospital of CITIC-Xiangya between January 1, 2016, and November 30, 2020, selected on the basis of pre-established criteria. Analysis was limited to the first transfer cycle of the first stimulation cycle. INTERVENTION Baseline SBP and DBP. MAIN OUTCOME MEASURE(S) The primary outcome focused on the live birth rate (LBR), with the secondary outcomes including clinical pregnancy rate, ectopic pregnancy rate, first-trimester miscarriage rate, second- or third-trimester fetal loss, and delivery/neonatal/maternal outcomes. Analytic methods included Poisson regression, linear regression, linear mixed-effect model, and restricted cubic spline analysis as appropriate. RESULT(S) For normotensive women, a 10-mm Hg increase in SBP was associated with an adjusted relative risk of 0.988 (95% confidence interval, 0.981-0.995) for live birth likelihood. However, DBP was not significantly associated with LBR after adjustments. The secondary outcomes indicated that increases in SBP and DBP were associated with higher risks of first-trimester miscarriage, gestational diabetes mellitus, and gestational hypertension in the normotensive subset. Sensitivity analyses confirmed these associations between SBP/DBP and LBR, consistent with the main findings even under stricter guidelines and after adjusting for multiple confounders. Subgroup analyses showed variation in the impact of blood pressure on LBR across different demographics and conditions. Consistent with earlier studies on blood pressure and birth outcomes, we found a 10-mm Hg increase in SBP was associated with a 5.4% (adjusted relative risk per 10 mm Hg, 0.946; 95% confidence interval, 0.907-0.986) reduction in LBR in the hypertensive subgroup. CONCLUSION(S) Systolic blood pressure impacted LBR outcomes in normotensive women who underwent IVF/ICSI, which suggests the need for reconsidering blood pressure management guidelines for reproductive-age women, focusing on reproductive health in addition to cardiovascular risk.
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Affiliation(s)
- Shujuan Ma
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, People's Republic of China; Key Laboratory of Reproductive and Stem Cell Engineering, Central South University, Changsha, Hunan, People's Republic of China
| | - Liang Hu
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, People's Republic of China; Key Laboratory of Reproductive and Stem Cell Engineering, Central South University, Changsha, Hunan, People's Republic of China; Key Laboratory of National Health and Family Planning Commission, Central South University, Changsha, Hunan, People's Republic of China
| | - Huijun Chen
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, People's Republic of China; Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Centre Mannheim, University of Heidelberg, Mannheim, Germany; Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Yvonne Liu
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Centre Mannheim, University of Heidelberg, Mannheim, Germany; Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Johann-Georg Hocher
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Centre Mannheim, University of Heidelberg, Mannheim, Germany; Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - XiangWang Xu
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, People's Republic of China; Key Laboratory of National Health and Family Planning Commission, Central South University, Changsha, Hunan, People's Republic of China
| | - Fei Gong
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, People's Republic of China; Key Laboratory of Reproductive and Stem Cell Engineering, Central South University, Changsha, Hunan, People's Republic of China; Key Laboratory of National Health and Family Planning Commission, Central South University, Changsha, Hunan, People's Republic of China
| | - Bernhard K Krämer
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Centre Mannheim, University of Heidelberg, Mannheim, Germany; European Center for Angioscience ECAS, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany; Center for Preventive Medicine and Digital Health Baden-Württemberg, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Ge Lin
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, People's Republic of China; Key Laboratory of Reproductive and Stem Cell Engineering, Central South University, Changsha, Hunan, People's Republic of China; Key Laboratory of National Health and Family Planning Commission, Central South University, Changsha, Hunan, People's Republic of China
| | - Berthold Hocher
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, People's Republic of China; Key Laboratory of Reproductive and Stem Cell Engineering, Central South University, Changsha, Hunan, People's Republic of China; Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Centre Mannheim, University of Heidelberg, Mannheim, Germany; Institute of Medical Diagnostics, Berlin-Potsdam, Germany.
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Yu X, Li L, Ning A, Wang H, Guan C, Ma X, Xia H. Primary cilia abnormalities participate in the occurrence of spontaneous abortion through TGF-β/SMAD2/3 signaling pathway. J Cell Physiol 2024. [PMID: 38704705 DOI: 10.1002/jcp.31292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/04/2024] [Accepted: 04/16/2024] [Indexed: 05/07/2024]
Abstract
Spontaneous abortion is the most common complication in early pregnancy, the exact etiology of most cases cannot be determined. Emerging studies suggest that mutations in ciliary genes may be associated with progression of pregnancy loss. However, the involvement of primary cilia on spontaneous abortion and the underlying molecular mechanisms remains poorly understood. We observed the number and length of primary cilia were significantly decreased in decidua of spontaneous abortion in human and lipopolysaccharide (LPS)-induced abortion mice model, accompanied with increased expression of proinflammatory cytokines interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α. The length of primary cilia in human endometrial stromal cell (hESC) was significantly shortened after TNF-α treatment. Knocking down intraflagellar transport 88 (IFT88), involved in cilia formation and maintenance, promoted the expression of TNF-α. There was a reverse regulatory relationship between cilia shortening and TNF-α expression. Further research found that shortened cilia impair decidualization in hESC through transforming growth factor (TGF)-β/SMAD2/3 signaling. Primary cilia were impaired in decidua tissue of spontaneous abortion, which might be mainly caused by inflammatory injury. Primary cilia abnormalities resulted in dysregulation of TGF-β/SMAD2/3 signaling transduction and decidualization impairment, which led to spontaneous abortion.
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Affiliation(s)
- Xiaoqin Yu
- Reproductive and Genetic Center & NHC Key Laboratory of Reproductive Health Engineering Technology Research, National Research Institute for Family Planning (NRIFP), Beijing, China
- Graduate Schools, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Linyuan Li
- University of Michigan College of Literature, Science, and the Arts, Ann Arbor, Michigan, USA
| | - Anfeng Ning
- Reproductive and Genetic Center & NHC Key Laboratory of Reproductive Health Engineering Technology Research, National Research Institute for Family Planning (NRIFP), Beijing, China
- Graduate Schools, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Hu Wang
- Reproductive and Genetic Center & NHC Key Laboratory of Reproductive Health Engineering Technology Research, National Research Institute for Family Planning (NRIFP), Beijing, China
- Graduate Schools, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Chunyi Guan
- Reproductive and Genetic Center & NHC Key Laboratory of Reproductive Health Engineering Technology Research, National Research Institute for Family Planning (NRIFP), Beijing, China
- Graduate Schools, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Xu Ma
- Reproductive and Genetic Center & NHC Key Laboratory of Reproductive Health Engineering Technology Research, National Research Institute for Family Planning (NRIFP), Beijing, China
- Graduate Schools, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Hongfei Xia
- Reproductive and Genetic Center & NHC Key Laboratory of Reproductive Health Engineering Technology Research, National Research Institute for Family Planning (NRIFP), Beijing, China
- Graduate Schools, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
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Cho K, Fayek B, Liu Y(D, Albert A, Wiesenthal E, Dobrer S, AbdelHafez FF, Lisonkova S, Bedaiwy MA. A history of recurrent pregnancy loss is associated with increased perinatal complications, but not necessarily a longer birth interval: a population study spanning 18 years. Hum Reprod 2024; 39:1105-1116. [PMID: 38390658 PMCID: PMC11063561 DOI: 10.1093/humrep/deae029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/24/2024] [Indexed: 02/24/2024] Open
Abstract
STUDY QUESTION Is there a difference in the time interval between the first and second live births among individuals with and without recurrent pregnancy loss (RPL)? SUMMARY ANSWER Primary RPL (two or more pregnancy losses before the first live birth) is associated with a shorter time interval between the first and second live births compared with individuals without RPL, but this association is reversed in patients with secondary RPL (RPL patients with no or one pregnancy loss before the first live birth). WHAT IS KNOWN ALREADY There is limited information regarding the ability to have more than one child for patients with RPL. Previous studies have investigated the time to live birth and the live birth rate from the initial presentation to clinical providers. Most of the previous studies have included only patients treated at specialized RPL clinics and thus may be limited by selection bias, including patients with a more severe condition. STUDY DESIGN, SIZE, DURATION We conducted a population-based retrospective cohort study of 184 241 participants who delivered in British Columbia, Canada, and had at least two recorded live births between 2000 and 2018. The aim was to study the differences in the time interval between the first and second live births and the prevalence of pregnancy complications in patients with and without RPL. Additionally, 198 319 individuals with their first live birth between 2000 and 2010 were studied to evaluate cumulative second live birth rates. PARTICIPANTS/MATERIALS, SETTING, METHODS Among individuals with at least two recorded live births between 2000 and 2018, 12 321 patients with RPL and 171 920 participants without RPL were included. RPL was defined as at least two pregnancy losses before 20 weeks gestation. Patients with primary RPL had at least two pregnancy losses occurring before the first live birth, while patients with secondary RPL had no or one pregnancy loss before the first live birth. We compared the time interval from the first to second live birth in patients with primary RPL, those with secondary RPL, and participants without RPL using generalized additive models to allow for a non-linear relationship between maternal age and time interval between first and second live births. We also compared prevalence of pregnancy complications at the first and second live births between the groups using non-parametric Kruskal-Wallis H test and Fisher's exact test for continuous and categorical variables, respectively. We assessed the cumulative second live birth rates in patients with primary RPL and those without RPL, among participants who had their first live birth between 2000 and 2010. Cox proportional hazards model was used to estimate and compare hazard ratios between the two groups using a stratified modelling approach. MAIN RESULTS AND THE ROLE OF CHANCE The adjusted time interval between the first and second live births was the longest in patients with secondary RPL, followed by individuals without RPL, and the shortest time interval was observed in patients with primary RPL: 4.34 years (95% CI: 4.09-4.58), 3.20 years (95% CI: 3.00-3.40), and 3.05 years (95% CI: 2.79-3.32). A higher frequency of pregnancy losses was associated with an increased time interval between the first and second live births. The prevalence of pregnancy complications at the first and second live births, including gestational diabetes, hypertensive disorder of pregnancy, preterm birth, and multiple gestations was significantly higher in patients with primary RPL compared with those without RPL. The cumulative second live birth rate was significantly lower in patients with primary RPL compared with individuals without RPL. LIMITATIONS, REASONS FOR CAUTION This study may be limited by its retrospective nature. Although we adjusted for multiple potential confounders, there may be residual confounding due to a lack of information about pregnancy intentions and other factors, including unreported pregnancy losses. WIDER IMPLICATIONS OF THE FINDINGS The results of this study provide information that will help clinicians in the counselling of RPL patients who desire a second child. STUDY FUNDING/COMPETING INTEREST(S) This study was supported in part by a grant from the Canadian Institutes of Health Research (CIHR): Reference Number W11-179912. M.A.B. reports research grants from CIHR and Ferring Pharmaceutical. He is also on the advisory board for AbbVie, Pfizer, and Baxter. The other authors report no conflict of interest. TRIAL REGISTRATION NUMBER NCT04360564.
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Affiliation(s)
- Kristy Cho
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Bahi Fayek
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Yang (Doris) Liu
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Arianne Albert
- Women’s Health Research Institute, Vancouver, BC, Canada
| | - E Wiesenthal
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Sabina Dobrer
- Women’s Health Research Institute, Vancouver, BC, Canada
| | - Faten F AbdelHafez
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Sarka Lisonkova
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
- Women’s Health Research Institute, Vancouver, BC, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Mohamed A Bedaiwy
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
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Zhang J, Liu X, Rao L, Ma R, Wu W, Chen C, Lin Y. Adverse obstetric and perinatal outcomes of patients with history of recurrent miscarriage: a retrospective cohort study. Fertil Steril 2023; 120:626-634. [PMID: 37121567 DOI: 10.1016/j.fertnstert.2023.04.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 04/20/2023] [Accepted: 04/20/2023] [Indexed: 05/02/2023]
Abstract
OBJECTIVE To examine the associations between a history of recurrent miscarriage (RM) and adverse obstetric and perinatal outcomes in the subsequent pregnancy that progressed beyond 24 weeks. DESIGN Retrospective cohort study. SETTING A large tertiary maternity hospital. PATIENT(S) All women who booked for antenatal care and delivery between January 2014 and August 2021 were recorded. The study was limited to women with a singleton pregnancy, and to avoid intraperson correlation, we selected the first record of delivery from each mother in the study, leaving 108,792 deliveries for analysis. Obstetric and perinatal outcomes were compared among 1994 women (1.83%) with a history of ≥2 miscarriages (RM), 11,477 women (10.55%) with a history of 1 miscarriage, and 95,321 women (87.62%) with no history of miscarriage, respectively. INTERVENTION(S) Women with a history of ≥2 miscarriages or RM. MAIN OUTCOME MEASURE(S) Obstetric complications included gestational diabetes mellitus, preeclampsia (subclassified as preterm and term preeclampsia), placenta previa, placenta accreta, and fetal distress. Perinatal outcomes included emergency cesarean section, elective cesarean section, induction, postpartum hemorrhage, preterm birth, stillbirth, Apgar score <7 at 5 minutes, neonatal asphyxia, neonatal sex, congenital; malformation, low birth weight, and neonatal death. RESULT(S) After adjusting for relevant confounders, there was an increased risk of adverse obstetric and perinatal outcomes in a subsequent pregnancy for women with a history of RM, specifically for placental dysfunction disorders: preterm preeclampsia (risk ratio [RR] = 1.58; 95% confidence interval [CI], 1.03-2.32), preterm birth (RR = 1.34; 95% CI, 1.15-1.54)], and abnormal placentation, that is placenta previa (RR = 1.78; 95% CI, 1.36-2.28), and placenta accreta (RR = 4.19; 95% CI, 2.75-6.13). CONCLUSION(S) Significant associations existed between a history of RM and the occurrence of adverse obstetric and perinatal outcomes including placental dysfunction disorders and abnormal placentation. These findings may contribute to the early detection and appropriate intervention for placenta-associated diseases in women with a history of RM, with the goal of avoiding or reducing the associated detrimental effects.
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Affiliation(s)
- Jinwen Zhang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, People's Republic of China; Institute of Birth Defects and Rare Diseases, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Xiaorui Liu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, People's Republic of China; Institute of Birth Defects and Rare Diseases, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Lin Rao
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China; Institute of Birth Defects and Rare Diseases, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Ruixiang Ma
- Department of Automation, Shanghai Jiao Tong University, Shanghai, People's Republic of China; Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai, People's Republic of China
| | - Weibin Wu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, People's Republic of China; Institute of Birth Defects and Rare Diseases, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Cailian Chen
- Department of Automation, Shanghai Jiao Tong University, Shanghai, People's Republic of China; Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai, People's Republic of China
| | - Yi Lin
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China; Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China.
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Baños Cándenas L, Abehsera Davó D, Castaño Frías L, González Mesa E. Retrospective Study of First Trimester Metrorrhagia: Pregnancy Follow-Up and Relationship with the Appearance of Gestational Complications. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1370. [PMID: 37629660 PMCID: PMC10456544 DOI: 10.3390/medicina59081370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/23/2023] [Accepted: 07/25/2023] [Indexed: 08/27/2023]
Abstract
Background and Objectives: The purpose of this study was to describe and evaluate the bleeding that occurs during the first weeks of gestation and its implications throughout pregnancy. Secondarily, we assessed the associated complications in order to identify potential risk factors that could be used to select women at higher risk of adverse outcomes that could benefit from an early diagnosis and improved monitoring. Materials and Methods: We made a selection of all the women who consulted in the Emergency Department of the Hospital QuirónSalud in Malaga on 2015 presenting with first trimester metrorrhagia. We refer to first trimester metrorrhagia as that which occurs until week 12 + 6. Once these pregnant women were identified, we studied several variables not related to the gestation and some others associated with it and its natural course. Results: The average age of the patients assessed was 34.1. Associated gestational complications were metrorrhagia in the second trimester (6.3%), threatened preterm labor (7.4%), preeclampsia (2.5%), gestational diabetes (7.4%), late abortion (1.2%), and early postpartum hemorrhage (1.8%). We sought associations to assess possible risk factors, establishing an increased maternal age as an aggravating factor for the development of complications. We also studied gestational complications, finding a higher prevalence of them in older women, such as prematurity (33.11 vs. 34.48 years), gestational diabetes (33.11 vs. 36.06 years), and preeclampsia (33.25 vs. 35 years). Conclusions: Maternal age is a risk factor for first-trimester spontaneous miscarriage and for the development of complications of pregnancy. It is crucial to perform a correct screening of different pathologies throughout the pregnancy to anticipate potential complications.
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Affiliation(s)
- Laura Baños Cándenas
- Medicine School, Malaga University, 29071 Málaga, Spain
- Obstetrics and Gynecology Service, Virgen de la Victoria University Hospital, 29010 Málaga, Spain
| | | | - Lucía Castaño Frías
- Obstetrics and Gynecology Service, Regional University Hospital of Malaga, 29011 Málaga, Spain
| | - Ernesto González Mesa
- Obstetrics and Gynecology Service, Regional University Hospital of Malaga, 29011 Málaga, Spain
- Surgical Specialties, Biochemistry and Immunology Department, Malaga University, 29071 Málaga, Spain
- Biomedical Research Institute of Malaga (IBIMA) Research Group in Maternal-Fetal Medicine, Epigenetics, Women’s Diseases and Reproductive Health, 29071 Málaga, Spain
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9
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Mei Y, Lin Y, Guo X, Zhang Y, Wang F. The risk factors and impact of subchorionic hematoma in the first trimester in IVF twin pregnancies: a prospective cohort study. Front Med (Lausanne) 2023; 10:1187344. [PMID: 37448796 PMCID: PMC10337779 DOI: 10.3389/fmed.2023.1187344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/06/2023] [Indexed: 07/15/2023] Open
Abstract
Objective This study aimed to identify the risk factors for subchorionic hematoma (SCH) in the first trimester of in vitro fertilization (IVF) twin pregnancies and investigate the impact of SCH on pregnancy outcomes. Study design A prospective cohort study was conducted at Chengdu Women and Children's Central Hospital. The study recruited patients who were identified with twin pregnancies in the first trimester, undergoing IVF treatment from January 2020 to May 2021. The demographic characteristics and pregnancy outcomes were compared between the SCH and the non-SCH groups. A logistic regression analysis was used to determine the risk factors for SCH and adverse pregnancy outcomes. Results In the first trimester, 38% of patients developed SCH. The independent risk factors for SCH included male factor, hydrosalpinx, polycystic ovary syndrome (PCOS), previous miscarriage, and adenomyosis. With respect to the pregnancy outcomes, only the rate of twin pregnancy loss before 20 gestational weeks was significantly higher in the SCH group than in the non-SCH group. After adjusting for the confounding factors, the presence of SCH diminished the ovarian reserve, and previous miscarriage was independently related to twin pregnancy loss before 20 gestational weeks. Conclusion This may be the first study to evaluate the risk factors of SCH in twin pregnancies who underwent IVF-ET/FET treatment, which may provide some theoretical basis for clinical practice in the future. Furthermore, it was found that the occurrence of SCH was associated with the loss of both pregnancies before 20 gestational weeks. Therefore, these patients should be offered increased surveillance and timely treatment.
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Ertmann RK, Nicolaisdottir DR, Kragstrup J, Overbeck G, Kriegbaum M, Siersma V. The predictive value of common symptoms in early pregnancy for complications later in pregnancy and at birth. Acta Obstet Gynecol Scand 2022; 102:33-42. [PMID: 36300886 PMCID: PMC9780714 DOI: 10.1111/aogs.14474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 09/06/2022] [Accepted: 10/03/2022] [Indexed: 12/30/2022]
Abstract
INTRODUCTION The aim was to investigate whether common pregnancy-related symptoms-nausea, vomiting, back pain, pelvic girdle pain, pelvic cavity pain, vaginal bleeding, itching of vulva, pregnancy itching, leg cramps, uterine contractions and varicose veins-in the first trimester of pregnancy add to the identification of women at high risk of future pregnancy and birth complications. MATERIAL AND METHODS Survey data linked to national register data. All women booking an appointment for a first prenatal visit in one of 192 randomly selected General Practices in East Denmark in the period April 2015-August 2016. The General Practices included 1491 women to this prospective study. Two outcomes, pregnancy complications and birth complications, were collected from the Danish Medical Birth Register. RESULTS Among the 1413 included women, 199 (14%) experienced complications in later pregnancy. The most serious complication, miscarriage, was experienced by 65 women (4.6%). Other common pregnancy complications were gestational diabetes mellitus (n = 11, 0.8%), gestational hypertension without proteinuria (n = 34, 2.4%), mild to moderate preeclampsia (n = 34, 2.4%) and gestational itching with effect on liver (n = 17, 1.2%). Women who experienced pelvic girdle pain, pelvic cavity pain or vaginal bleeding in the first trimester of pregnancy had a higher risk of pregnancy complications later on in later pregnancy. None of the other examined symptoms showed associations to pregnancy complications. No associations were found between pregnancy-related physical symptoms in first trimester and birth complications. CONCLUSIONS Symptoms in early pregnancy do not add much information about the risk of pregnancy or birth complications, although pain and bleeding may give reason for some concern. This is an important message to women experiencing these common symptoms and to their caregivers.
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Affiliation(s)
- Ruth Kirk Ertmann
- Research Unit for General Practice and Section for General PracticeInstitute of Public Health, University of CopenhagenCopenhagenDenmark
| | - Dagny Ros Nicolaisdottir
- Research Unit for General Practice and Section for General PracticeInstitute of Public Health, University of CopenhagenCopenhagenDenmark
| | - Jakob Kragstrup
- Research Unit for General Practice and Section for General PracticeInstitute of Public Health, University of CopenhagenCopenhagenDenmark
| | - Gritt Overbeck
- Research Unit for General Practice and Section for General PracticeInstitute of Public Health, University of CopenhagenCopenhagenDenmark
| | - Margit Kriegbaum
- Research Unit for General Practice and Section for General PracticeInstitute of Public Health, University of CopenhagenCopenhagenDenmark
| | - Volkert Siersma
- Research Unit for General Practice and Section for General PracticeInstitute of Public Health, University of CopenhagenCopenhagenDenmark
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11
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Rocha ADS, Falcão IR, Teixeira CSS, Alves FJO, Ferreira AJF, Silva NDJ, Almeida MFD, Ribeiro-Silva RDC. Determinants of preterm birth: proposal for a hierarchical theoretical model. CIENCIA & SAUDE COLETIVA 2022. [DOI: 10.1590/1413-81232022278.03232022en] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Preterm birth (PB) is a syndrome resulting from a complex relationship between multiple factors which do not have fully understood relationships and causality. This article discusses a hierarchical theoretical model of PB determinants, considering maternal characteristics such as sociodemographic, psychosocial, nutritional, behavioral and biological aspects, traditionally associated with increased risk of PB. The variables were distributed in six dimensions within three hierarchical levels (distal, intermediate and proximal). In this model, the socioeconomic determinants of the mother, family, household and neighborhood play indirect effects on PB through variables at the intermediate level, which in turn affect biological risk factors at the proximal level that have a direct effect on PB. The study presents a hierarchical theoretical model of the factors involved in the PB determination chain and their interrelationships. Understanding these interrelationships is an important step in trying to break the causal chain that makes some women vulnerable to preterm birth.
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Affiliation(s)
| | - Ila Rocha Falcão
- Universidade Federal da Bahia, Brazil; Fundação Oswaldo Cruz, Brazil
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12
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Rocha ADS, Falcão IR, Teixeira CSS, Alves FJO, Ferreira AJF, Silva NDJ, Almeida MFD, Ribeiro-Silva RDC. Determinants of preterm birth: proposal for a hierarchical theoretical model. CIENCIA & SAUDE COLETIVA 2022; 27:3139-3152. [PMID: 35894325 DOI: 10.1590/1413-81232022278.03232022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 05/05/2022] [Indexed: 11/22/2022] Open
Abstract
Preterm birth (PB) is a syndrome resulting from a complex relationship between multiple factors which do not have fully understood relationships and causality. This article discusses a hierarchical theoretical model of PB determinants, considering maternal characteristics such as sociodemographic, psychosocial, nutritional, behavioral and biological aspects, traditionally associated with increased risk of PB. The variables were distributed in six dimensions within three hierarchical levels (distal, intermediate and proximal). In this model, the socioeconomic determinants of the mother, family, household and neighborhood play indirect effects on PB through variables at the intermediate level, which in turn affect biological risk factors at the proximal level that have a direct effect on PB. The study presents a hierarchical theoretical model of the factors involved in the PB determination chain and their interrelationships. Understanding these interrelationships is an important step in trying to break the causal chain that makes some women vulnerable to preterm birth.
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Affiliation(s)
- Aline Dos Santos Rocha
- Escola de Nutrição, Universidade Federal da Bahia, Salvador. Centro de Integração de Dados e Conhecimentos para Saúde (Cidacs), Fundação Oswaldo Cruz. R. Mundo 121, ed. Tecnocentro, sl. 315, Trobogy. 41745-715 Salvador BA Brasil.
| | - Ila Rocha Falcão
- Escola de Nutrição, Universidade Federal da Bahia, Salvador. Centro de Integração de Dados e Conhecimentos para Saúde (Cidacs), Fundação Oswaldo Cruz. R. Mundo 121, ed. Tecnocentro, sl. 315, Trobogy. 41745-715 Salvador BA Brasil.
| | - Camila Silveira Silva Teixeira
- Centro de Integração de Dados e Conhecimentos para Saúde (Cidacs), Fundação Oswaldo Cruz. Instituto de Saúde Coletiva, Universidade Federal da Bahia. Salvador BA Brasil
| | - Flávia Jôse Oliveira Alves
- Centro de Integração de Dados e Conhecimentos para Saúde (Cidacs), Fundação Oswaldo Cruz. Instituto de Saúde Coletiva, Universidade Federal da Bahia. Salvador BA Brasil
| | - Andrêa Jacqueline Fortes Ferreira
- Centro de Integração de Dados e Conhecimentos para Saúde (Cidacs), Fundação Oswaldo Cruz. Instituto de Saúde Coletiva, Universidade Federal da Bahia. Salvador BA Brasil
| | - Natanael de Jesus Silva
- Centro de Integração de Dados e Conhecimentos para Saúde (Cidacs), Fundação Oswaldo Cruz. Instituto de Saúde Global de Barcelona, Hospital Clínic. Barcelona Espanha
| | | | - Rita de Cássia Ribeiro-Silva
- Escola de Nutrição, Universidade Federal da Bahia, Salvador. Centro de Integração de Dados e Conhecimentos para Saúde (Cidacs), Fundação Oswaldo Cruz. R. Mundo 121, ed. Tecnocentro, sl. 315, Trobogy. 41745-715 Salvador BA Brasil.
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13
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Qin ZJ, Xu Y, Du Y, Chen YL, Sun L, Zheng A. Intrauterine Hematoma in the First Trimester and Pregnancy Complications: A Systematic Review and Meta-Analysis. Front Med (Lausanne) 2022; 9:892146. [PMID: 35783643 PMCID: PMC9247277 DOI: 10.3389/fmed.2022.892146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 05/26/2022] [Indexed: 11/25/2022] Open
Abstract
Background Studies evaluating the relationship between intrauterine hematoma in the first trimester and prenatal complications are conflicting. Objectives To evaluate whether intrauterine hematoma identified in the first trimester in women with singleton pregnancies is associated with adverse perinatal outcomes. Search Strategy A comprehensive literature search of three databases (Embase, PubMed, and Web of Science) was performed up to September 2021. Selection Criteria Cohort and case-control studies that have evaluated the relationship between intrauterine hematoma identified before 14 gestational weeks and the risk of prenatal complications, in women with a singleton pregnancy. Data Collection and Analysis Two members of our team independently assessed the studies for inclusion, collected the data of interest, and assessed the risk of bias, and calculated pooled odds ratios (ORs) using random-effects models. Main Results Nine studies, including 1,132 women with intrauterine hematoma and 11,179 controls met the inclusion criteria. Intrauterine hematoma increased the risk of spontaneous abortion [OR 2.15, 95% confidence interval (CI) 1.23–3.75], preterm birth (OR 1.83, 95% CI 1.37–2.43), fetal growth restriction (OR 2.33, 95% CI 1.13–4.83) and placental abruption (OR 3.16, 95% CI 1.23–8.13). No statistically significant association was found between intrauterine hematoma and preeclampsia (OR 1.30, 95% CI 0.87–1.94). Conclusion Intrauterine hematoma in the first trimester of pregnancy increases the risk of spontaneous abortion, preterm birth, placental abruption, and fetal growth restriction. Systematic Review Registration https://www.crd.york.ac.uk/PROSPERO/.
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Affiliation(s)
- Zhao-juan Qin
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), Sichuan University, Chengdu, China
| | - Yu Xu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), Sichuan University, Chengdu, China
| | - Yi Du
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), Sichuan University, Chengdu, China
| | - Ya-li Chen
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), Sichuan University, Chengdu, China
| | - Liang Sun
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), Sichuan University, Chengdu, China
| | - Ai Zheng
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), Sichuan University, Chengdu, China
- *Correspondence: Ai Zheng
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Batsry L, Yinon Y. The vanishing twin: Diagnosis and implications. Best Pract Res Clin Obstet Gynaecol 2022; 84:66-75. [PMID: 35450773 DOI: 10.1016/j.bpobgyn.2022.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/13/2022] [Indexed: 11/30/2022]
Abstract
Vanishing twin syndrome (VTS), defined by first-trimester spontaneous loss of a twin, is a common phenomenon with a reported prevalence of 15-35% of twin pregnancies. The etiology of VTS is obscure. Still, several risk factors have been identified, including an increased number of embryos transferred in pregnancies conceived by in vitro fertilization, an initial increased number of gestational sacs and advanced maternal age. The effect of VTS on obstetric and perinatal outcomes is controversial. Several studies have reported that pregnancies with VTS were associated with increased risk for preterm birth and small for gestational age neonates compared to singleton pregnancies, while others showed no difference in perinatal outcomes. The prevalence of placental vascular and anatomic abnormalities such as small placentas was higher in VTS. These findings lay an essential foundation for understanding how this phenomenon affects obstetric and perinatal outcomes of the surviving pregnancy.
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Affiliation(s)
- Linoy Batsry
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, The Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yoav Yinon
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, The Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
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15
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Ge Y, Lai S, Li X, Shi J, Ma C, Zhao J. Vanishing twin syndrome is associated with first-trimester intrauterine hematoma in twin pregnancies after in vitro fertilization. Front Endocrinol (Lausanne) 2022; 13:1062303. [PMID: 36714561 PMCID: PMC9880446 DOI: 10.3389/fendo.2022.1062303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 12/21/2022] [Indexed: 01/15/2023] Open
Abstract
RESEARCH QUESTION Is there an association between intrauterine hematoma (IUH), vanishing twin syndrome (VTS), and subsequent complications in twin pregnancies after in vitro fertilization (IVF)? What are the risk factors for these complications? DESIGN Women who presented with two live gestational sacs following double embryo transfer were included. Patients with systematic diseases, artificial fetal reduction, and incomplete data were excluded. Further stratification of IUH pregnancies was performed according to IUH-related characteristics (i.e., volume, changing pattern, and relationship with fetal cardiac activities). The primary outcome was the incidence of VTS, while adverse outcomes in the surviving singleton and the gestational age of VTS were secondary outcomes. RESULTS The incidence of IUH was 13.8%. A total of 1,078 twin pregnancies including 539 IUH pregnancies and 539 non-IUH pregnancies were included. IUH pregnancy was associated with higher risks of VTS (26.9% vs. 18.7%, p = 0.001) as well as a higher incidence of preterm birth (p = 0.001, crude OR = 1.98, 95% CI 1.28-3.09, adjusted OR = 1.19, 95% CI 1.09-1.24), threatened abortion (p < 0.001, crude OR = 9.12, 95% CI 2.90-28.69, adjusted OR = 6.63, 95% CI 1.69-14.67), and postpartum hemorrhage (p = 0.024, crude OR = 3.13, 95% CI 1.09-8.99, adjusted OR = 1.16, 95% CI 1.08-1.32) in the surviving singleton. There was no significant difference in risks of other complications. The absence of fetal cardiac activities at the diagnosis of IUH predicted VTS (p < 0.001, crude OR 4.67, 95% CI 3.67-5.78, adjusted OR 3.33, 95% CI 1.56-5.14) and fetal loss at smaller gestational age (7.81 ± 2.10 vs. 11.39 ± 5.60 weeks, p < 0.001), while an IUH with an increasing volume did not increase the risk of VTS but might induce threatened abortion in the surviving fetus (p < 0.001, crude OR 1.84, 95% CI 1.32-2.55, adjusted OR 1.72, 95% CI 1.13-2.13). CONCLUSIONS IUH was a risk factor for VTS in twin pregnancies following double embryo transfer and elevated the risks of threatened abortion, preterm birth, and postpartum hemorrhage in the surviving singleton. The absence of fetal cardiac activities at the diagnosis of IUH elevated the risks of VTS, while an IUH with an increasing volume was associated with threatened abortion without elevating the risks of VTS. An IUH diagnosed before the presence of fetal cardiac activities also resulted in an earlier miscarriage. The study suggests that attention be paid to twin pregnancies with first-trimester IUH to prevent VTS and subsequent adverse perinatal outcomes. HIGHLIGHTS First-trimester intrauterine hematoma (IUH) following double embryo transfer is associated with a higher incidence of vanishing twin syndrome (VTS) and elevated subsequent risk of threatened abortion, preterm birth, and postpartum hemorrhage in the surviving singleton. Other perinatal outcomes were not associated with the diagnosis of first-trimester IUH. The absence of fetal cardiac activities at the diagnosis of IUH was of predictive value toward VTS, while an IUH with an increasing size was associated with threatened abortion without elevating the risk of VTS. Incomplete fetal cardiac activities and earlier detection of an IUH might also predict miscarriage at smaller gestational age.
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Affiliation(s)
- Yimeng Ge
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- Peking University Health Science Center, Beijing, China
| | - Shaoyang Lai
- Department of Obstetrics, Women and Children’s Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Xiaoxue Li
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Peking University Third Hospital, Beijing, China
| | - Jing Shi
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Caihong Ma
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Peking University Third Hospital, Beijing, China
- *Correspondence: Jie Zhao, ; Caihong Ma,
| | - Jie Zhao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Peking University Third Hospital, Beijing, China
- *Correspondence: Jie Zhao, ; Caihong Ma,
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Quenby S, Gallos ID, Dhillon-Smith RK, Podesek M, Stephenson MD, Fisher J, Brosens JJ, Brewin J, Ramhorst R, Lucas ES, McCoy RC, Anderson R, Daher S, Regan L, Al-Memar M, Bourne T, MacIntyre DA, Rai R, Christiansen OB, Sugiura-Ogasawara M, Odendaal J, Devall AJ, Bennett PR, Petrou S, Coomarasamy A. Miscarriage matters: the epidemiological, physical, psychological, and economic costs of early pregnancy loss. Lancet 2021; 397:1658-1667. [PMID: 33915094 DOI: 10.1016/s0140-6736(21)00682-6] [Citation(s) in RCA: 459] [Impact Index Per Article: 153.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 02/11/2021] [Accepted: 02/16/2021] [Indexed: 12/24/2022]
Abstract
Miscarriage is generally defined as the loss of a pregnancy before viability. An estimated 23 million miscarriages occur every year worldwide, translating to 44 pregnancy losses each minute. The pooled risk of miscarriage is 15·3% (95% CI 12·5-18·7%) of all recognised pregnancies. The population prevalence of women who have had one miscarriage is 10·8% (10·3-11·4%), two miscarriages is 1·9% (1·8-2·1%), and three or more miscarriages is 0·7% (0·5-0·8%). Risk factors for miscarriage include very young or older female age (younger than 20 years and older than 35 years), older male age (older than 40 years), very low or very high body-mass index, Black ethnicity, previous miscarriages, smoking, alcohol, stress, working night shifts, air pollution, and exposure to pesticides. The consequences of miscarriage are both physical, such as bleeding or infection, and psychological. Psychological consequences include increases in the risk of anxiety, depression, post-traumatic stress disorder, and suicide. Miscarriage, and especially recurrent miscarriage, is also a sentinel risk marker for obstetric complications, including preterm birth, fetal growth restriction, placental abruption, and stillbirth in future pregnancies, and a predictor of longer-term health problems, such as cardiovascular disease and venous thromboembolism. The costs of miscarriage affect individuals, health-care systems, and society. The short-term national economic cost of miscarriage is estimated to be £471 million per year in the UK. As recurrent miscarriage is a sentinel marker for various obstetric risks in future pregnancies, women should receive care in preconception and obstetric clinics specialising in patients at high risk. As psychological morbidity is common after pregnancy loss, effective screening instruments and treatment options for mental health consequences of miscarriage need to be available. We recommend that miscarriage data are gathered and reported to facilitate comparison of rates among countries, to accelerate research, and to improve patient care and policy development.
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Affiliation(s)
- Siobhan Quenby
- Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Warwick, UK; Tommy's National Centre for Miscarriage Research, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK.
| | - Ioannis D Gallos
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Rima K Dhillon-Smith
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Marcelina Podesek
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Mary D Stephenson
- University of Illinois Recurrent Pregnancy Loss Program, Department of Obstetrics and Gynecology, University of Illinois at Chicago, Chicago, IL, USA
| | - Joanne Fisher
- Warwick Clinical Trials Unit, University of Warwick, Warwick, UK
| | - Jan J Brosens
- Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Warwick, UK; Tommy's National Centre for Miscarriage Research, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK
| | - Jane Brewin
- Tommy's Charity, Laurence Pountney Hill, London, UK
| | - Rosanna Ramhorst
- CONICET, Universidad de Buenos Aires, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales IQUIBICEN, Buenos Aires, Argentina
| | - Emma S Lucas
- Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Warwick, UK; Tommy's National Centre for Miscarriage Research, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK
| | - Rajiv C McCoy
- Department of Biology, Johns Hopkins University, Baltimore, MD, USA
| | - Robert Anderson
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Shahd Daher
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Lesley Regan
- Tommy's National Centre for Miscarriage Research, Imperial College London, London, UK
| | - Maya Al-Memar
- Tommy's National Centre for Miscarriage Research, Imperial College London, London, UK
| | - Tom Bourne
- Tommy's National Centre for Miscarriage Research, Imperial College London, London, UK
| | - David A MacIntyre
- Tommy's National Centre for Miscarriage Research, Imperial College London, London, UK
| | - Raj Rai
- Tommy's National Centre for Miscarriage Research, Imperial College London, London, UK
| | - Ole B Christiansen
- Centre for Recurrent Pregnancy Loss of Western Denmark, Department of Obstetrics and Gynaecology, Aalborg University Hospital, Aalborg, Denmark
| | - Mayumi Sugiura-Ogasawara
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Joshua Odendaal
- Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Warwick, UK; Tommy's National Centre for Miscarriage Research, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK
| | - Adam J Devall
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | | | - Stavros Petrou
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Arri Coomarasamy
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
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17
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Liu S, Yu L, Wu Q, Cui H, Lin X, Wang W. Study on the correlation between vaginal bleeding in first trimester and preterm birth: A birth cohort study in Lanzhou, China. J Obstet Gynaecol Res 2021; 47:1997-2004. [PMID: 33749042 DOI: 10.1111/jog.14750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 01/08/2021] [Accepted: 03/05/2021] [Indexed: 11/27/2022]
Abstract
OBJECTS To investigate the correlation between first trimester vaginal bleeding and preterm birth (PB), and to offer suggestions on the perinatal health care and preterm birth prevention. METHODS A birth cohort study was conducted on 10 179 pregnant women. Unconditional logistic regression model was used to evaluate the associations between vaginal bleeding and preterm birth in sub-preterm groups. RESULTS Of the 10 179 pregnant women included, a total of 1001 women suffered from vaginal bleeding during the first trimester, of which 119 suffered from PB. Any vaginal bleeding increased the risk of PB. Severe bleeding was a high-risk factor of PB, associated with 4.8-fold risk of very PB, 2.7-fold risk of spontaneous PB without PROM (premature rupture of membrane) and 4.6-fold risk of medical induced PB. Bleeding prolonged more than 1 week increased 66% risk of PB and 36% risk of PB on initial episode happened in 5-12 weeks of gestation age, especially in moderate PB, in medical-induced PB and in spontaneous PB with PPROM (preterm premature rupture of membrane which is one cause of PB). Mild bleeding or bleeding within 1 week or initial episode happened within 4 weeks of gestation age possibly had no influence on PB. CONCLUSION Vaginal bleeding in the first-trimester was an independent risk factor for PB. The severity, duration and initial time of vaginal bleeding had different effects on different subtypes of PB.
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Affiliation(s)
- Sufen Liu
- Aviation General Hospital, Beijing, China
| | - Liqun Yu
- Aviation General Hospital, Beijing, China
| | | | - Hongmei Cui
- Gansu Provincial Maternity & Child Care Hospital, Lanzhou, China
| | - Xiaojuan Lin
- Gansu Provincial Maternity & Child Care Hospital, Lanzhou, China
| | - Wendi Wang
- Gansu Provincial Maternity & Child Care Hospital, Lanzhou, China
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18
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Complementary and Alternative Medicine for Threatened Miscarriage: Advantages and Risks. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021. [DOI: 10.1155/2021/5589116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Threatened miscarriage is one of the most common complications causing pregnancy loss, and it affects approximately 20% of confirmed pregnancies. More and more women are seeking treatment with complementary and alternative medicine (CAM) for this common complication, and it has been reported that women have had successful pregnancies after threatened miscarriage when being treated with CAM, which mainly includes Chinese herbal medicines, acupuncture, and nutritional supplements as well as psychological interventions and other approaches. However, many experts are concerned about the safety and adverse events of certain CAM approaches in women with threatened miscarriage. Therefore, this review focuses on the status of CAM for threatened miscarriage and presents the potential therapeutic efficacy and safety of CAM based on some clinical and experimental studies. We thus hope to provide some instructive suggestions for the application of CAM for treating threatened miscarriage in the future.
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19
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Ji W, Hou B, Li W, Guo F, He P, Zheng J. Associations between first-trimester intrauterine hematoma and twin pregnancy outcomes: a retrospective cohort study. BMC Pregnancy Childbirth 2021; 21:46. [PMID: 33430833 PMCID: PMC7802326 DOI: 10.1186/s12884-020-03528-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 12/26/2020] [Indexed: 11/22/2022] Open
Abstract
Background In recent years, first-trimester intrauterine hematoma (IUH) has become increasingly common in twin pregnancy. The majority of studies on IUH have excluded twin pregnancies, and others did not differentiate between singleton and twin pregnancies. The impact of IUH on twin pregnancy is unclear. Therefore, the primary objective of our study was to examine associations between first-trimester IUH and pregnancy outcomes in twin pregnancies. Methods The data of 1020 twin pregnancies in women who received a routine examination from January 2014 to December 2018 were reviewed. We compared baseline data and pregnancy outcomes between those with and without IUH. Multivariable logistic regression analysis was used to adjust for possible confounding factors. Results A total of 209 patients (21.3%) developed IUH in the first trimester. First-trimester IUH was significantly associated with increased odds of miscarriage (adjusted odds ratio 14.27, 95% CI 8.25–24.70) and vanishing twin syndrome (adjusted odds ratio 3.26, 95% CI 1.11–4.61). However, there were no differences in the rates of stillbirth, preeclampsia, preterm labor (< 34 weeks), low birth weight, postpartum hemorrhage or fetal distress between the two groups. Maternal age, previous preterm birth, chorionicity in twins and the gestational week at first ultrasound did not differ between the two groups. The women with IUH had high rates of previous miscarriage (46.73% vs 38.37%, p = 0.01), assisted conception (48.56% vs 32.60%, p < 0.001) and accompanied vaginal bleeding (67.46% vs 13.43%, p < 0.001). According to the logistic regression analyses, these characteristics were not associated with pregnancy loss or vanishing twin syndrome. No IUH characteristics, including volume, largest diameter, or the presence of vaginal bleeding, were associated with pregnancy loss or vanishing twin syndrome before 20 weeks of gestation (P > 0.05). Conclusion In women with twin pregnancy, the presence of IUH in the first trimester was associated with the loss of one or both fetuses before 20 weeks of gestation. However, previous miscarriage, the conception method, the IUH size and the presence of vaginal bleeding were not independently associated with miscarriage or vanishing twin syndrome.
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Affiliation(s)
- Wanqing Ji
- Department of Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, Guangdong Province, China
| | - Bo Hou
- Departments of Neurosurgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, Guangdong Province, China
| | - Weidong Li
- Department of Woman and Child Health Information Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Fang Guo
- Department of Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, Guangdong Province, China
| | - Ping He
- Department of Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, Guangdong Province, China.
| | - Jie Zheng
- Department of Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, Guangdong Province, China.
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20
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Ticconi C, Pietropolli A, Specchia M, Nicastri E, Chiaramonte C, Piccione E, Scambia G, Di Simone N. Pregnancy-Related Complications in Women with Recurrent Pregnancy Loss: A Prospective Cohort Study. J Clin Med 2020; 9:jcm9092833. [PMID: 32882985 PMCID: PMC7564138 DOI: 10.3390/jcm9092833] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/31/2020] [Accepted: 08/31/2020] [Indexed: 12/16/2022] Open
Abstract
The aim of this prospective cohort study was to determine whether women with recurrent pregnancy loss (RPL) have an increased risk of pregnancy complications compared to normal pregnant women. A total of 1092 singleton pregnancies were followed, 431 in women with RPL and 661 in normal healthy women. The prevalence of the following complications was observed: threatened miscarriage, miscarriage, cervical insufficiency, chromosomal/genetic abnormalities, fetal anomalies, oligohydramnios, polyhydramnios, fetal growth restriction, intrauterine fetal death, gestational diabetes mellitus (GDM), preeclampsia, placenta previa, abruptio placentae, pregnancy-related liver disorders, and preterm premature rupture of the membranes. The odds ratio and 95% CI for each pregnancy complication considered were determined by comparing women with RPL and normal healthy women. Women with RPL had an overall rate of pregnancy complications higher than normal women (OR = 4.37; 95% CI: 3.353–5.714; p < 0.0001). Their risk was increased for nearly all the conditions considered. They also had an increased risk of multiple concomitant pregnancy complications (OR = 4.64; 95% CI: 3.10–6.94, p < 0.0001). Considering only women with RPL, women with ≥3 losses had a higher risk of pregnancy complications than women with two losses (OR = 1.269; 95% CI: 1.112–2.386, p < 0.02). No differences were found in the overall risk of pregnancy complications according to the type, explained or unexplained, of RPL. Women with secondary RPL had an increased risk of GDM than women with primary RPL. Pregnancy in women with RPL should be considered at high risk.
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Affiliation(s)
- Carlo Ticconi
- Department of Surgical Sciences, Section of Gynecology and Obstetrics, University Tor Vergata, 00168 Rome, Italy; (A.P.); (E.N.); (E.P.)
- Correspondence:
| | - Adalgisa Pietropolli
- Department of Surgical Sciences, Section of Gynecology and Obstetrics, University Tor Vergata, 00168 Rome, Italy; (A.P.); (E.N.); (E.P.)
| | - Monia Specchia
- Unità Operativa Complessa (U.O.C.) di Ostetricia e Patologia Ostetrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A.Gemelli Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS), 00168 Rome, Italy; (M.S.); (N.D.S.)
- Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
| | - Elena Nicastri
- Department of Surgical Sciences, Section of Gynecology and Obstetrics, University Tor Vergata, 00168 Rome, Italy; (A.P.); (E.N.); (E.P.)
| | - Carlo Chiaramonte
- Department of Biomedicine and Prevention, University Tor Vergata, Viale Oxford 81, 00133 Rome, Italy;
| | - Emilio Piccione
- Department of Surgical Sciences, Section of Gynecology and Obstetrics, University Tor Vergata, 00168 Rome, Italy; (A.P.); (E.N.); (E.P.)
| | - Giovanni Scambia
- Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
- U.O.C. di Ginecologia Oncologica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Nicoletta Di Simone
- Unità Operativa Complessa (U.O.C.) di Ostetricia e Patologia Ostetrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A.Gemelli Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS), 00168 Rome, Italy; (M.S.); (N.D.S.)
- Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
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21
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Choi H, Koo S, Park HY. Maternal coffee intake and the risk of bleeding in early pregnancy: a cross-sectional analysis. BMC Pregnancy Childbirth 2020; 20:121. [PMID: 32085746 PMCID: PMC7035749 DOI: 10.1186/s12884-020-2798-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 02/07/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Caffeine can easily cross the placenta, and maternal caffeine intake, thus, has an effect on fetal growth. However, it is still unclear whether coffee consumption is an independent risk factor for bleeding in early pregnancy. The objective of this study was to examine the association between pre-pregnancy coffee consumption patterns and the risk of bleeding in early pregnancy. METHODS A cross-sectional analysis was conducted among 3510 pregnant women from the Korean Pregnancy Outcome Study who underwent baseline examination and for whom the results of the pregnancy were available. Coffee consumption patterns before pregnancy were examined using a questionnaire. The participants were classified according to the frequency of coffee consumption into seldom (< 1 cup/week), light (< 1 cup/day), moderate (1 cup/day), and heavy coffee drinker (≥2 cups/day) groups. Bleeding in early pregnancy was defined as the occurrence of vaginal bleeding in the first 20 weeks of pregnancy. Multiple logistic regression models were applied to examine the association between pre-pregnancy coffee consumption and the risk of bleeding in early pregnancy, after adjusting for age, body mass index (BMI), systolic blood pressure, cigarette smoking and alcohol consumption behavior, previous and current physical activity levels, stress levels, history of depression, antenatal depressive symptoms during the first trimester, type of emesis, parity, and the number of livebirths, stillbirths, miscarriages, and abortions. RESULTS Women who were light, moderate, and heavy coffee drinkers before pregnancy had adjusted ORs of 1.086, 1.225, and 1.358, respectively, for bleeding in early pregnancy. In a fully adjusted model, heavy coffee drinkers showed a significantly higher risk of bleeding in early pregnancy, even in women aged 35 years and younger (OR 1.680) and in those with a normal body mass index (OR 1.389), who were at relatively low risk for pregnancy-related complications. CONCLUSIONS Our results showed that heavy coffee drinking was independently associated with a higher risk of bleeding in early pregnancy among pregnant Korean women, suggesting that caffeine intake before conception and during pregnancy should be reduced. Our study highlights the need for nutritional interventions for healthy coffee drinking among pregnant women in Korea.
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Affiliation(s)
- Hansol Choi
- Department of Epidemiology and Health Index, Center for Genome Science, Korea National Institute of Health, Korea Centers for Disease Control & Prevention, Cheongju, Republic of Korea
| | - Seul Koo
- Department of Epidemiology and Health Index, Center for Genome Science, Korea National Institute of Health, Korea Centers for Disease Control & Prevention, Cheongju, Republic of Korea
| | - Hyun-Young Park
- Center for Genome Science, Korea National Institute of Health, Korea Centers for Disease Control & Prevention, Cheongju, Republic of Korea.
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Patel R, Gupta A, Chauhan S, Bansod DW. Effects of sanitation practices on adverse pregnancy outcomes in India: a conducive finding from recent Indian demographic health survey. BMC Pregnancy Childbirth 2019; 19:378. [PMID: 31651276 PMCID: PMC6813085 DOI: 10.1186/s12884-019-2528-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 09/20/2019] [Indexed: 01/03/2023] Open
Abstract
Background Several risk factors predisposing women and their live-borns to adverse outcomes during pregnancy have been documented. Little is known about sanitation being a factor contributing to adverse pregnancy outcomes in India. The role of sanitation in adverse pregnancy outcomes remains largely unexplored in the Indian context. This study is an attempt to bring the focus on sanitation as a factor in adverse pregnancy outcome. Along with the sanitation factors, few confounder variables have also been studied in order to understand the adverse pregnancy outcomes. Methods The study is based on the fourth round of National Family Health Survey (NFHS-IV) covering 26,972 married women in the age-group 15–49. The study variables include the mother’s age, Body Mass Index (BMI), education, anemia, and Antenatal care (ANC) visits during their last pregnancy. The household level variable includes place of residence, religion, caste, wealth index, access to toilet, type of toilet, availability of water within toilet premises, and facility of hand wash near the toilet. Children study variables include Low Birth Weight (LBW), the order of birth (Parity), and the death of the children of the women in the last 5 years. The target variable Adverse Pregnancy Outcome (APO) was constructed using children born with low birth weight or died during the last pregnancy. Results We calculated both adjusted as well as unadjusted odds ratios for a better understanding of the association between sanitation and adverse pregnancy outcomes. Findings from the study showed that women who did not have access to a toilet within the house had a higher risk of adverse pregnancy outcome. In the multivariable model, no association was observed for adverse pregnancy outcome among women who did not have access to toilet and women who used shared toilet. Teenage (15–19 years), uneducated, underweight and anemic mothers were more likely to face APO as compare to other mothers in similar characteristics group. Conclusions Our findings contribute to the decidedly less available literature on maternal sanitation behaviour and adverse pregnancy outcomes. Our results support that sanitation is a very significant aspect for women who are about to deliver a baby as there was an association between sanitation and adverse pregnancy outcome. Education on sanitation practices is the need of the hour as much as it needs to follow.
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Affiliation(s)
- Ratna Patel
- International Institute for Population Sciences, Govandi station Road, Deonar, Mumbai, 400088, India
| | - Ajay Gupta
- International Institute for Population Sciences, Govandi station Road, Deonar, Mumbai, 400088, India
| | - Shekhar Chauhan
- International Institute for Population Sciences, Govandi station Road, Deonar, Mumbai, 400088, India.
| | - Dhananjay W Bansod
- International Institute for Population Sciences, Govandi station Road, Deonar, Mumbai, 400088, India
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23
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Al-Memar M, Vaulet T, Fourie H, Nikolic G, Bobdiwala S, Saso S, Farren J, Pipi M, Van Calster B, de Moor B, Stalder C, Bennett P, Timmerman D, Bourne T. Early-pregnancy events and subsequent antenatal, delivery and neonatal outcomes: prospective cohort study. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2019; 54:530-537. [PMID: 30887596 DOI: 10.1002/uog.20262] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 02/28/2019] [Accepted: 02/28/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To assess prospectively the association between pelvic pain, vaginal bleeding, and nausea and vomiting occurring in the first trimester of pregnancy and the incidence of later adverse pregnancy outcomes. METHODS This was a prospective observational cohort study of consecutive women with confirmed intrauterine singleton pregnancy between 5 and 14 weeks' gestation recruited at Queen Charlotte's & Chelsea Hospital, London, UK, from March 2014 to March 2016. Serial ultrasound scans were performed in the first trimester. Participants completed validated symptom scores for vaginal bleeding, pelvic pain, and nausea and vomiting. The key symptom of interest was any pelvic pain and/or vaginal bleeding during the first trimester. Pregnancies were followed up until the final outcome was known. Antenatal, delivery and neonatal outcomes were obtained from hospital records. Logistic regression analysis was used to assess the association between first-trimester symptoms and pregnancy complications by calculating adjusted odds ratios (aOR) with correction for maternal age. RESULTS Of 1003 women recruited, 847 pregnancies were included in the final analysis following exclusion of cases due to first-trimester miscarriage (n = 99), termination of pregnancy (n = 20), loss to follow-up (n = 32) or withdrawal from the study (n = 5). Adverse antenatal complications were observed in 166/645 (26%) women with pelvic pain and/or vaginal bleeding in the first trimester (aOR = 1.79; 95% CI, 1.17-2.76) and in 30/181 (17%) women with no symptoms. Neonatal complications were observed in 66/634 (10%) women with and 11/176 (6%) without pelvic pain and/or vaginal bleeding (aOR = 1.73; 95% CI, 0.89-3.36). Delivery complications were observed in 402/615 (65%) women with and 110/174 (63%) without pelvic pain and/or vaginal bleeding during the first trimester (aOR = 1.16; 95% CI, 0.81-1.65). For 18 of 20 individual antenatal complications evaluated, incidence was higher among women with pelvic pain and/or vaginal bleeding, despite the overall incidences being low. Nausea and vomiting in pregnancy showed little association with adverse pregnancy outcomes. CONCLUSIONS Our study suggests that there is an increased incidence of antenatal complications in women experiencing pelvic pain and/or vaginal bleeding in the first trimester. This should be considered when advising women attending early-pregnancy units. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- M Al-Memar
- Tommy's National Early Miscarriage Research Centre, Queen Charlotte's & Chelsea Hospital, Imperial College London, London, UK
| | - T Vaulet
- ESAT-STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics, Leuven, Belgium
- Imec, Leuven, Belgium
| | - H Fourie
- Tommy's National Early Miscarriage Research Centre, Queen Charlotte's & Chelsea Hospital, Imperial College London, London, UK
| | - G Nikolic
- ESAT-STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics, Leuven, Belgium
- Imec, Leuven, Belgium
| | - S Bobdiwala
- Tommy's National Early Miscarriage Research Centre, Queen Charlotte's & Chelsea Hospital, Imperial College London, London, UK
| | - S Saso
- Tommy's National Early Miscarriage Research Centre, Queen Charlotte's & Chelsea Hospital, Imperial College London, London, UK
| | - J Farren
- Tommy's National Early Miscarriage Research Centre, Queen Charlotte's & Chelsea Hospital, Imperial College London, London, UK
| | - M Pipi
- Tommy's National Early Miscarriage Research Centre, Queen Charlotte's & Chelsea Hospital, Imperial College London, London, UK
| | - B Van Calster
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Department of Biomedical Data Sciences, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
| | - B de Moor
- ESAT-STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics, Leuven, Belgium
- Imec, Leuven, Belgium
| | - C Stalder
- Tommy's National Early Miscarriage Research Centre, Queen Charlotte's & Chelsea Hospital, Imperial College London, London, UK
| | - P Bennett
- Tommy's National Early Miscarriage Research Centre, Queen Charlotte's & Chelsea Hospital, Imperial College London, London, UK
| | - D Timmerman
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium
| | - T Bourne
- Tommy's National Early Miscarriage Research Centre, Queen Charlotte's & Chelsea Hospital, Imperial College London, London, UK
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium
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24
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Green DM, O'Donoghue K. A review of reproductive outcomes of women with two consecutive miscarriages and no living child. J OBSTET GYNAECOL 2019; 39:816-821. [PMID: 31006300 DOI: 10.1080/01443615.2019.1576600] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The definition of recurrent miscarriage ranges from two miscarriages according to the American Society for Reproductive Medicine and the European Society of Human Reproduction and Embryology, to three consecutive pregnancy losses as defined by the Royal College of Obstetricians and Gynaecologists. Recent guidelines emphasise the need for further research on the effect of various recurrent miscarriage definitions on diagnosis, treatment and prognosis. Our study examines the management and pregnancy outcomes of nulliparous women attending Cork University Maternity Hospital's Pregnancy Loss Clinic, between 2009 and 2014, with their second consecutive first-trimester miscarriage. Information was sourced from the Pregnancy Loss Clinic's database, hospital patient management and laboratory systems, and clinical letters. 294 women were identified. A subsequent pregnancy was conceived by 82.3% (242/294) of women, with 72.7% (176/242) achieving a live birth. In conclusion, supportive care and selective medical management in dedicated pregnancy loss and early pregnancy clinics achieve excellent reproductive outcomes. Impact Statement What is already known on this subject? The definition of recurrent miscarriage is varied. It ranges from two miscarriages according to the American Society for Reproductive Medicine and the European Society of Human Reproduction and Embryology, to three consecutive pregnancy losses as defined by the Royal College of Obstetricians and Gynaecologists. Recurrent miscarriage affects between 1 and 5% of women. Past studies suggest several causative factors, including epidemiologic, genetic, anatomical and endocrine. These factors may be identified in up to 50% of women with recurrent losses. Subsequent pregnancy outcomes are reported as excellent. However, recent guidelines focus on the need for further research on the effect of the various recurrent miscarriage definitions on diagnosis, investigation, treatment and prognosis. What the results of this study add? This study examined the management and pregnancy outcomes of women with two consecutive losses. A causative factor was identified in 29.3% of women in our cohort. A subsequent pregnancy was conceived by 82.3%, with 72.7% achieving a live birth. We suggest that supportive care is the single most effective therapy for women with two consecutive losses. What the implications are of these findings for clinical practice and/or further research? Over-investigation and empirical treatment should be avoided, with a greater emphasis placed on psychological support and risk factor modification in this group. Investigation protocols must be refined to only search for causes of recurrent miscarriage with evidence based treatment. Evaluation of supportive care in randomised control trials is needed.
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Affiliation(s)
- Deirdre M Green
- a Department of Obstetrics and Gynaecology , University College Cork , Cork , Ireland.,b Pregnancy Loss Research Group, The Irish Centre for Fetal and Neonatal Translational Research (INFANT) , University College Cork , Cork , Ireland
| | - Keelin O'Donoghue
- a Department of Obstetrics and Gynaecology , University College Cork , Cork , Ireland.,b Pregnancy Loss Research Group, The Irish Centre for Fetal and Neonatal Translational Research (INFANT) , University College Cork , Cork , Ireland
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25
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Kuroda K. Impaired endometrial function and unexplained recurrent pregnancy loss. HYPERTENSION RESEARCH IN PREGNANCY 2019. [DOI: 10.14390/jsshp.hrp2018-012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Keiji Kuroda
- Center for Reproductive Medicine and Implantation Research, Sugiyama Clinic Shinjuku
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine
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Sugiura‐Ogasawara M, Ebara T, Yamada Y, Shoji N, Matsuki T, Kano H, Kurihara T, Omori T, Tomizawa M, Miyata M, Kamijima M, Saitoh S. Adverse pregnancy and perinatal outcome in patients with recurrent pregnancy loss: Multiple imputation analyses with propensity score adjustment applied to a large-scale birth cohort of the Japan Environment and Children's Study. Am J Reprod Immunol 2019; 81:e13072. [PMID: 30430678 PMCID: PMC6646903 DOI: 10.1111/aji.13072] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 09/06/2018] [Accepted: 10/25/2018] [Indexed: 11/29/2022] Open
Abstract
PROBLEM Several studies have reported the increased risk of preterm birth, premature rupture of membranes, and low birth weight in patients with recurrent pregnancy loss (RPL). There have been a limited number of large population-based studies examining adverse pregnancy and perinatal outcome after RPL. Multiple-imputed analyses (MIA) adjusting for biases due to missing data is also lacking. METHOD OF STUDY A nationwide birth cohort study known as the "Japan Environment and Children's Study (JECS)" was conducted by the Ministry of the Environment. The subjects consisted of 104 102 registered children (including fetuses or embryos). RESULTS No increased risk of a congenital anomaly, aneuploidy, neonatal asphyxia, or a small for date infant was observed among the children from women with a history of RPL. A novel increased risk of placental adhesion and uterine infection was found. The adjusted ORs using MIA in women with three or more PL were 1.76 (95% CI, 1.04-2.96) for a stillbirth, 1.68 (1.12-2.52) for a pregnancy loss, 2.53 (1.17-5.47) for placental adhesion, 1.87 (1.37-2.55) and 1.60 (.99-2.57) for mild and severe hypertensive disorders of pregnancy, respectively, 1.94 (1.06-3.55) for uterine infection, 1.28 (1.11-1.47) for caesarean section and .86 (.76-.98) for a male infant. CONCLUSION MIA better quantified the risk, which could encourage women who might hesitate to attempt a subsequent pregnancy.
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Affiliation(s)
- Mayumi Sugiura‐Ogasawara
- Department of Obstetrics and GynecologyNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
| | - Takeshi Ebara
- Department of Occupational and Environmental HealthNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
| | - Yasuyuki Yamada
- Department of Occupational and Environmental HealthNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
- Juntendo University Graduate School of Health and Sports ScienceChibaJapan
| | - Naoto Shoji
- Department of Occupational and Environmental HealthNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
| | - Taro Matsuki
- Department of Occupational and Environmental HealthNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
| | - Hirohisa Kano
- Department of Occupational and Environmental HealthNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
| | - Takahiro Kurihara
- Department of Occupational and Environmental HealthNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
| | - Toyonori Omori
- Department of Health Care Policy ManagementNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
- National Center for Child Health and DevelopmentTokyoJapan
| | - Motohiro Tomizawa
- Department of Occupational and Environmental HealthNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
| | - Maiko Miyata
- Department of Occupational and Environmental HealthNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
| | - Michihiro Kamijima
- Department of Occupational and Environmental HealthNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
| | - Shinji Saitoh
- Department of Pediatrics and NeonatologyNagoya City UniversityGraduate School of Medical SciencesNagoyaJapan
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Fejzo M, Kam A, Laguna A, MacGibbon K, Mullin P. Analysis of neurodevelopmental delay in children exposed in utero to hyperemesis gravidarum reveals increased reporting of autism spectrum disorder. Reprod Toxicol 2018; 84:59-64. [PMID: 30594672 DOI: 10.1016/j.reprotox.2018.12.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/19/2018] [Accepted: 12/26/2018] [Indexed: 12/27/2022]
Abstract
The purpose of this study was to follow up on the reporting of neurodevelopmental disorders in children exposed in utero to Hyperemesis Gravidarum (HG). This was an exploratory descriptive study whereby neurodevelopmental outcomes of 267 children delivered by 177 mothers with HG were compared to neurodevelopmental outcomes from 93 children delivered by 60 unaffected mothers. Similar to at age 8, the children (now 12) exposed in utero to HG had over 3-fold increase in odds of neurodevelopmental disorders including attention, anxiety, sensory, sleep difficulty, and social development delay/social anxiety. However, with the longer follow-up, there was also a significant increase in Autism Spectrum Disorder (ASD), reported in 22/267 (8%) of children exposed to HG in utero and no unexposed children. As early intervention for ASD can be critical to prognosis, larger studies are urgently needed to determine whether ASD is associated with exposure to HG.
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Affiliation(s)
- Marlena Fejzo
- Department of Maternal-Fetal Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA; Division of Hematology-Oncology, David Geffen School of Medicine, Jonsson Comprehensive Cancer Center, University of California at Los Angeles, Los Angeles, CA, USA.
| | - Alyssa Kam
- Division of Hematology-Oncology, David Geffen School of Medicine, Jonsson Comprehensive Cancer Center, University of California at Los Angeles, Los Angeles, CA, USA
| | - Amanda Laguna
- Division of Hematology-Oncology, David Geffen School of Medicine, Jonsson Comprehensive Cancer Center, University of California at Los Angeles, Los Angeles, CA, USA
| | - Kimber MacGibbon
- Hyperemesis Education and Research Foundation, Damascus, OR, USA
| | - Patrick Mullin
- Department of Maternal-Fetal Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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Ozek MA, Karaagaoglu E, Orgul G, Gumruk F, Yurdakök M, Beksac MS. Comparison of different types of twin pregnancies in terms of obstetric and perinatal outcomes: association of vanished twins with methylenetetrahydrofolate reductase (MTHFR) polymorphism(s). J Assist Reprod Genet 2018; 35:2149-2154. [PMID: 30362058 DOI: 10.1007/s10815-018-1346-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 10/16/2018] [Indexed: 11/29/2022] Open
Abstract
PURPOSE Vanished twin (VT) has been associated with poor perinatal outcomes. Our research aimed to investigate the outcomes of pregnancies with vanished twin and its possible association with methylenetetrahydrofolate reductase (MTHFR) polymorphisms. METHODS This study consisted of 30 of 38 VT pregnancies (group 1, VT group), 109 singletons (group 2), 70 spontaneous twins (group 3), and 101 in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) twins (group 4). RESULTS Most patients in group 1 (28/30) were tested for MTHFR genes (C677T or A1298C polymorphisms). Eight of the 38 pregnancies with VT (21.1%) resulted in miscarriage. The prevalence of "2 or more pregnancy losses" in the "obstetric history" in group 1 was higher (23.3%) than those in the other groups (p = 0.007, χ2 = 17.8). The allelic frequencies of MTHFR 677 and MTHFR 1298 in group 1 were 0.268 and 0.429, respectively (higher than those in healthy population). The median birthweights in groups 1, 2, 3, and 4 were 2940, 3200, 2300, and 2095 g, respectively. The prevalence of respiratory distress syndrome was significantly higher in the IVF/ICSI twin pregnancy group (p < 0.001, χ2 = 21.2). Early pregnancy loss and the presence of "2 or more miscarriages" in the obstetric history of pregnancies with VT were more frequent. CONCLUSION The coincidence of VT and MTHFR polymorphisms might play an incidental or factual role in this connection.
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Affiliation(s)
- Murat Aykut Ozek
- Division of Perinatal Medicine, Department of Obstetrics and Gynecology, Hacettepe University Medical Faculty, Ankara, Turkey. .,Gazi University School of Medicine, 06500, Besevler-Ankara, Turkey.
| | - Ergun Karaagaoglu
- Department of Biostatistics, Hacettepe University Medical Faculty, Ankara, Turkey
| | - Gokcen Orgul
- Division of Perinatal Medicine, Department of Obstetrics and Gynecology, Hacettepe University Medical Faculty, Ankara, Turkey
| | - Fatma Gumruk
- Division of Hematology Department of Pediatrics, Hacettepe University Medical Faculty, Ankara, Turkey
| | - Murat Yurdakök
- Division of Neonatology, Department of Pediatrics, Hacettepe University Medical Faculty, Ankara, Turkey
| | - M Sinan Beksac
- Division of Perinatal Medicine, Department of Obstetrics and Gynecology, Hacettepe University Medical Faculty, Ankara, Turkey
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Tararbit K, Lelong N, Goffinet F, Khoshnood B. Assessing the risk of preterm birth for newborns with congenital heart defects conceived following infertility treatments: a population-based study. Open Heart 2018; 5:e000836. [PMID: 30402257 PMCID: PMC6203020 DOI: 10.1136/openhrt-2018-000836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 08/07/2018] [Accepted: 08/31/2018] [Indexed: 11/04/2022] Open
Abstract
Objectives To quantify the risk of preterm birth (PTB) for newborns with congenital heart defects (CHDs) conceived following infertility treatments, and to examine the role of multiple pregnancies in the association between infertility treatments and PTB for newborns with CHD. Methods We used data from a population-based, prospective cohort study (EPICARD EPIdémiologie des CARDiopathies congénitales) including 2190 newborns with CHD and excluding cases with atrial septal defects born to women living in the Greater Paris area between May 2005 and April 2008. Statistical analysis included logistic regression to take into account potential confounders (maternal characteristics, invasive prenatal testing, CHD prenatal diagnosis, medically induced labour/caesarean section before labour, birth year). The role of multiple pregnancies was assessed using a path-analysis approach, allowing decomposition of the total effect of infertility treatments on the risk of PTB into its indirect (mediated by the association between infertility treatments and multiple pregnancies) and direct (mediated by mechanisms other than multiple pregnancies) effects. Results PTB occurred for 40.6% (95% CI 28.7 to 52.5) of newborns with CHD conceived following infertility treatments vs 12.7% (95% CI 11.3 to 14.2) for spontaneously conceived newborns (p<0.001). After taking into account potentially confounding factors, infertility treatments were associated with a 5.0-fold higher odds of PTB (adjusted OR=5.0, 95% CI 2.9 to 8.6). Approximately two-thirds of this higher risk of PTB associated with infertility treatments was an indirect effect (ie, due to multiple pregnancies) and one-third was a direct effect (ie, not mediated by multiple pregnancies). Conclusion Newborns with CHD conceived following infertility treatments are at a particularly high risk of PTB, exposing over 40% of them to the 'double jeopardy' of CHD and PTB.
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Affiliation(s)
- Karim Tararbit
- INSERM, UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center for Epidemiology and Statistics, Sorbonne Paris Cité (CRESS), DHU Risks in Pregnancy, Paris Descartes University, Paris, France
| | - Nathalie Lelong
- INSERM, UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center for Epidemiology and Statistics, Sorbonne Paris Cité (CRESS), DHU Risks in Pregnancy, Paris Descartes University, Paris, France
| | - François Goffinet
- INSERM, UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center for Epidemiology and Statistics, Sorbonne Paris Cité (CRESS), DHU Risks in Pregnancy, Paris Descartes University, Paris, France
- Maternité Port Royal, Hôpital Cochin Saint-Vincent-de-Paul, Assistance Publique Hôpitaux de Paris, Université Paris-Descartes, Paris, France
| | - Babak Khoshnood
- INSERM, UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center for Epidemiology and Statistics, Sorbonne Paris Cité (CRESS), DHU Risks in Pregnancy, Paris Descartes University, Paris, France
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Freis A, Schlegel J, Daniel V, Jauckus J, Strowitzki T, Germeyer A. Cytokines in relation to hCG are significantly altered in asymptomatic women with miscarriage - a pilot study. Reprod Biol Endocrinol 2018; 16:93. [PMID: 30266090 PMCID: PMC6162891 DOI: 10.1186/s12958-018-0411-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 09/25/2018] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Spontaneous abortion is one of the most common complications in early pregnancy. A preventive test to identify women who will experience a miscarriage, even before first symptoms occur, is not established. Activation of maternal immunological tolerance seems to be essential for early fetal development and various cytokines have been described in different stages of pregnancy. Therefore, we aimed to investigate if chemokine levels at the time of pregnancy testing relative to human Choriogonadotropin (hCG) are altered in patients who will experience a miscarriage in this pregnancy. METHODS We obtained blood samples from 39 women. Dependent on the follow-up, patients with a positive pregnancy test were subsequently divided in two groups: ongoing pregnancy (n = 22) and miscarriage (n = 17) in this pregnancy. Immunological and endocrine profiling of maternal plasma at the time of pregnancy testing (5th week of gestation) was performed for each group at the time of pregnancy test using Multiplex and ELISA analysis. RESULTS hCG was significantly decreased in patients with abortion whereas levels of IL-1ra, MIP-1a and TNF-alpha were significantly increased. GCSF/ IL-1ra-ratio was 1.66-fold increased in patients with ongoing pregnancy. TGF-beta /MIP1a-ratio was significantly 3.45-times higher in patients with miscarriage. Comparing patients with ongoing pregnancy to patients experiencing a miscarriage, we could demonstrate significant alterations of the ratios MIP1a/hCG, IL-1ra/hCG, TNFalpha/hCG, MCP1/hCG, IL-6/hCG, TPO/hCG and TGF-beta1/hCG. The strongest effects were seen for the ratio MIP1a/hCG, IL-1ra/hCG and TNFalpha/hCG. CONCLUSIONS We have shown that cytokines in relation to hCG after 4 weeks of gestation are significantly altered in women with miscarriage, promising potential as a prognostic biomarker.
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Affiliation(s)
- Alexander Freis
- Department of Gynaecological Endocrinology and Fertility Disorders, University Hospital Heidelberg, INF 440, 69120 Heidelberg, Germany
| | - Janina Schlegel
- Department of Gynaecological Endocrinology and Fertility Disorders, University Hospital Heidelberg, INF 440, 69120 Heidelberg, Germany
| | - Volker Daniel
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120 Heidelberg, Germany
| | - Julia Jauckus
- Department of Gynaecological Endocrinology and Fertility Disorders, University Hospital Heidelberg, INF 440, 69120 Heidelberg, Germany
| | - Thomas Strowitzki
- Department of Gynaecological Endocrinology and Fertility Disorders, University Hospital Heidelberg, INF 440, 69120 Heidelberg, Germany
| | - Ariane Germeyer
- Department of Gynaecological Endocrinology and Fertility Disorders, University Hospital Heidelberg, INF 440, 69120 Heidelberg, Germany
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Lee HJ, Norwitz E, Lee B. Relationship between threatened miscarriage and gestational diabetes mellitus. BMC Pregnancy Childbirth 2018; 18:318. [PMID: 30081861 PMCID: PMC6080503 DOI: 10.1186/s12884-018-1955-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 07/27/2018] [Indexed: 12/16/2022] Open
Abstract
Background Both threatened miscarriage and gestational diabetes mellitus (GDM) are common complications of pregnancy. However, only one pilot study has reported that these complications are not related. We aimed to investigate whether threatened miscarriage is one of the risk factors of GDM. Methods An unmatched case-control study of 1567 pregnant Korean women who underwent a two-step approach to diagnose GDM was retrospectively conducted. The eligible women were classified into normal (n = 840), borderline GDM (n = 480), and GDM (n = 247) groups. We analyzed the associations with threatened miscarriage in all groups with adjustment for confounding factors. Results The proportion of women who experienced threatened miscarriage was significantly lower in the GDM group than in the normal group (adjusted odds ratio (OR), 0.38; 95% confidence interval (CI), 0.18–0.78). It was significantly lower in the maternal hyperglycemia group (borderline GDM and GDM groups) than in the normal group (adjusted OR, 0.66; 95% CI, 0.47–0.91). The proportion of women who experienced threatened miscarriage was also significantly lower in the GDM group than in the normal (adjusted OR, 0.35; 95% CI, 0.17–0.70) and borderline GDM groups (adjusted OR, 0.46; 95% CI, 0.22–0.94). Moreover, the proportion of women who experienced threatened miscarriage significantly decreased according to the severity of glucose intolerance (adjusted OR, 0.94; 95% CI, 0.76–1.16). Conclusion This study demonstrates that threatened miscarriage is associated with decreased risk of GDM and the severity of glucose intolerance in Korean women. Additional studies are warranted to understand the pathophysiologic mechanisms that might exist between these frequent complications of pregnancy.
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Affiliation(s)
- Hee Joong Lee
- Department of Obstetrics & Gynecology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Errol Norwitz
- Department of Obstetrics & Gynecology, Tufts University School of Medicine, Boston, MA, USA
| | - Banghyun Lee
- Department of Obstetrics and Gynecology, Hallym University Kangdong Sacred Heart Hospital, 150, Seongan-ro, Gangdong-gu, Seoul, Republic of Korea.
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Koren G, Ornoy A, Berkovitch M. Hyperemesis gravidarum-Is it a cause of abnormal fetal brain development? Reprod Toxicol 2018; 79:84-88. [PMID: 29913206 DOI: 10.1016/j.reprotox.2018.06.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 05/20/2018] [Accepted: 06/14/2018] [Indexed: 12/27/2022]
Abstract
Hyperemesis gravidarum (HG) is characterized by severe gestational nausea and vomiting, leading to dehydration, electrolyte imbalance and nutritional deficits. HG adversely affects the health and wellbeing of the woman. However, the detrimental impact of HG on fetal brain development has not been addressed. We evaluate herein the emerging evidence suggesting that HG interferes with human brain development, and discuss putative mechanisms. Evidence emerges from prospective developmental studies in offspring exposed in utero to HG, from studies of pregnancy outcome after in utero exposure to famine, as well as evidence on specific nutritional deficiencies affecting fetal brain development.
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Affiliation(s)
- Gideon Koren
- Motherisk Israel, Clinical Pharmacology and Toxicology Unit, Assaf Harofeh Medical Center, Zerifin; Maccabi Institute for Research and Innovation, Israel; Sackler Faculty of Medicine, Tel Aviv University, Israel; Westen University, ON, Canada; The Hebrew University, Israel.
| | - Asher Ornoy
- Westen University, ON, Canada; The Hebrew University, Israel
| | - Matitiahu Berkovitch
- Motherisk Israel, Clinical Pharmacology and Toxicology Unit, Assaf Harofeh Medical Center, Zerifin; Sackler Faculty of Medicine, Tel Aviv University, Israel; The Hebrew University, Israel
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Lubinsky M. An epigenetic association of malformations, adverse reproductive outcomes, and fetal origins hypothesis related effects. J Assist Reprod Genet 2018; 35:953-964. [PMID: 29855751 PMCID: PMC6030006 DOI: 10.1007/s10815-018-1197-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 04/25/2018] [Indexed: 12/17/2022] Open
Abstract
VACTERL, the prototype for associated congenital anomalies, also has connections with functional issues such as pregnancy losses, prematurity, growth delays, perinatal difficulties, and parental subfertility. This segues into a broader association with similar connections even in the absence of malformations. DNA methylation disturbances in the ovum are a likely cause, with epigenetic links to individual components and to folate effects before conception, explaining diverse fetal and placental findings and providing a link to fetal origin hypothesis-related effects. The association encompasses the following: (1) Pre- and periconceptual effects, with frequent fertility issues and occasional imprinting disorders. (2) Early malformations. (3) Adverse pregnancy outcomes (APOs), as above. (4) Developmental destabilization that resolves soon after birth. This potentiates other causes of association findings, introducing multiple confounders. (5) Long-term fetal origins hypothesis-related risks. The other findings are exceptional when the same malformations have Mendelian origins, supporting a distinct pathogenesis. Expressions are facilitated by one-carbon metabolic issues, maternal and fetal stress, and decreased embryo size. This may be one of the commonest causes of adverse reproductive outcomes, but multifactorial findings, variable onsets and phenotypes, and interactions with multiple confounders make recognition difficult. This association supports VACTERL as a continuum that includes isolated malformations, extends the fetal origins hypothesis, explains adverse effects linked to maternal obesity, and suggests possible interventions.
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Affiliation(s)
- Mark Lubinsky
- , 6003 W. Washington Blvd., Wauwatosa, WI, 53213, USA.
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Peixoto AB, Caldas TMRDC, Petrini CG, Romero ACP, Júnior LEB, Martins WP, Araujo Júnior E. The impact of first-trimester intrauterine hematoma on adverse perinatal outcomes. Ultrasonography 2018; 37:330-336. [PMID: 29807403 PMCID: PMC6177692 DOI: 10.14366/usg.18006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 03/17/2018] [Indexed: 11/17/2022] Open
Abstract
Purpose The aim of this study was to evaluate whether the presence of an intrauterine hematoma (IUH) on an early pregnancy ultrasound scan showing a live fetus was related to adverse perinatal outcomes. Methods We performed a retrospective cohort study to evaluate pregnant women who underwent an ultrasound examination in early pregnancy, between 6 weeks 0 days and 10 weeks 6 days. We compared the perinatal outcomes between women with and without firsttrimester IUH using the Mann-Whitney and Fisher exact tests. Furthermore, we performed a stepwise regression analysis to identify possible predictors of miscarriage among maternal characteristics, ultrasound parameters, and IUH. Results During the study period, data from 783 pregnancies were included, and the incidence of IUH was 4.5% (35 of 783). We observed a higher proportion of miscarriage following the scan (28.6% vs. 10%, P=0.003) and a larger yolk sac diameter during the scan (4.8 mm vs. 3.8 mm, P<0.001) in the pregnant women with first-trimester IUH. There was no significant difference regard the prevalence of low birth weight (LBW; P=0.091), very LBW (P=0.370), or extremely LBW (P=0.600) between cases with IUH and without IUH, the cesarean section rate (68% vs. 81%, P=0.130), preterm delivery (16% vs. 16%, P>0.999), or the incidence of first-trimester vaginal bleeding (31% vs. 20%, P=0.130). Moreover, heart rate (HR) was the only variable that predicted miscarriage with statistical significance (P=0.017). Conclusion Women with first-trimester IUH had a higher risk of miscarriage after the ultrasound scan. HR was the only variable that predicted miscarriage with statistical significance.
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Affiliation(s)
- Alberto Borges Peixoto
- Department of Obstetrics, Paulista School of Medicine, Federal University of São Paulo (EPM-UNIFESP), São Paulo, Brazil.,Mário Palmério University Hospital, University of Uberaba (UNIUBE), Uberaba, Brazil.,Radiologic Clinic of Uberaba (CRU), Uberaba, Brazil
| | | | | | | | | | - Wellington P Martins
- Department of Obstetrics and Gynecology, Ribeirão Preto Medical School, University of São Paulo (FMRPUSP), Ribeiráo Preto, Brazil
| | - Edward Araujo Júnior
- Department of Obstetrics, Paulista School of Medicine, Federal University of São Paulo (EPM-UNIFESP), São Paulo, Brazil
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35
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Koren G. Safety considerations surrounding use of treatment options for nausea and vomiting in pregnancy. Expert Opin Drug Saf 2017; 16:1227-1234. [DOI: 10.1080/14740338.2017.1361403] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Gideon Koren
- Western University Canada, Tel Aviv University Israel
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36
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Bø K, Artal R, Barakat R, Brown W, Davies GAL, Dooley M, Evenson KR, Haakstad LAH, Henriksson-Larsen K, Kayser B, Kinnunen TI, Mottola MF, Nygaard I, van Poppel M, Stuge B, Khan KM. Exercise and pregnancy in recreational and elite athletes: 2016 evidence summary from the IOC expert group meeting, Lausanne. Part 1-exercise in women planning pregnancy and those who are pregnant. Br J Sports Med 2017; 50:571-89. [PMID: 27127296 DOI: 10.1136/bjsports-2016-096218] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Kari Bø
- Norwegian School of Sport Sciences, Oslo, Norway
| | - Raul Artal
- Department of Obstetrics/Gynecology and Women's Health, Saint Louis University, St Louis, Missouri, USA
| | - Ruben Barakat
- Facultad de Ciencias de la Actividad Física y del Deporte-INEF, Universidad Politécnica de Madrid, Madrid, Spain
| | - Wendy Brown
- Centre for Research on Exercise, School of Human Movement and Nutrition Sciences, University of Queensland, St Lucia, Queensland, Australia
| | - Gregory A L Davies
- Department of Maternal-Fetal Medicine, Queens University, Kingston, Ontario, Canada
| | - Michael Dooley
- The Poundbury Clinic Dorchester-The Poundbury Suite, King Edward VII Hospital London, London, UK
| | - Kelly R Evenson
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Department of Epidemiology, Gillings School of Global Public Health, Chapel Hill, North Carolina, USA
| | - Lene A H Haakstad
- Department of Sport Sciences, Norwegian School of Sport Sciences, Oslo, Norway
| | | | - Bengt Kayser
- Faculty of Biology and Medicine, Institute of Sports Science, University of Lausanne, Lausanne, Switzerland
| | - Tarja I Kinnunen
- University Lecturer, School of Health Sciences, University of Tampere, Tampere, Finland Department of Children, Young People and Families, The National Institute for Health and Welfare, Helsinki, Finland
| | - Michelle F Mottola
- R Samuel McLaughlin Foundation-Exercise and Pregnancy Lab, The University of Western Ontario London, London, Ontario, Canada
| | - Ingrid Nygaard
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, USA
| | | | - Britt Stuge
- Oslo University Hospital, Ullevål, Oslo, Norway
| | - Karim M Khan
- Department of Family Practice & Centre for Hip Health and Mobility, University of British Columbia, Vancouver, British Columbia, Canada
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van Gruting IMA, Müller MA, van Groningen K, Exalto N. Macroscopic and microscopic morphology of first trimester miscarriage and subsequent pregnancy outcome - An exploratory study. Placenta 2017; 53:16-22. [PMID: 28487015 DOI: 10.1016/j.placenta.2017.02.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 02/16/2017] [Accepted: 02/24/2017] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Reduced chorionic villous vascularization is associated with first trimester miscarriage and second trimester fetal loss. Differences in villous vascularization have been observed in combination with complications in the third trimester of pregnancy. The aim of this study was to investigate whether abnormal morphology and reduced chorionic villous vascularization in first trimester miscarriages are associated with an increased risk on adverse outcome and/or pregnancy complications in subsequent pregnancy. Secondly, to assess the influence of these parameters on the length of the interpregnancy interval and infertility. METHODS In a retrospective cohort study 134 consecutive women who underwent dilatation and curettage for a miscarriage were included. The degree of chorionic villous vascularization in miscarriage tissue was determined by a pathologist. Ultrasound details of these miscarriages and clinical data on the subsequent pregnancy of these women were obtained. RESULTS Neither reduced vascularization nor early embryonic arrest in first trimester miscarriages are associated with an increased risk of a subsequent miscarriage or adverse obstetric and perinatal outcome of subsequent pregnancy. Abnormal morphology of the first trimester miscarriage did not influence the time to subsequent pregnancy. A shorter mean interpregnancy interval between miscarriages was observed after miscarriages with reduced chorionic villous vascularization (5.5 vs. 10.7 months; p = 0.051), showing a trend towards an association. DISCUSSION Chorionic villous vascularization and morphology have no influence on subsequent pregnancy outcome. Therefore it remains unknown what aspects of miscarriage are causing the increased risk on subsequent miscarriage and complications in the third trimester of the subsequent pregnancy.
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Affiliation(s)
- Isabelle M A van Gruting
- Department of Obstetrics and Gynaecology, Spaarne Gasthuis, Spaarnepoort 1, 2134 TM, Hoofddorp, The Netherlands
| | - Moira A Müller
- Department of Obstetrics and Gynaecology, Spaarne Gasthuis, Spaarnepoort 1, 2134 TM, Hoofddorp, The Netherlands
| | - Krijn van Groningen
- Department of Clinical Pathology, Spaarne Gasthuis, Spaarnepoort 1, 2134 TM, Hoofddorp, The Netherlands
| | - Niek Exalto
- Department of Obstetrics and Gynaecology, Division of Obstetrics and Prenatal Medicine, Erasmus MC: University Medical Centre Rotterdam, 's-Gravendijkwal 230, 3015 CE, The Netherlands.
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Sõber S, Rull K, Reiman M, Ilisson P, Mattila P, Laan M. RNA sequencing of chorionic villi from recurrent pregnancy loss patients reveals impaired function of basic nuclear and cellular machinery. Sci Rep 2016; 6:38439. [PMID: 27929073 PMCID: PMC5143936 DOI: 10.1038/srep38439] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 11/08/2016] [Indexed: 12/14/2022] Open
Abstract
Recurrent pregnancy loss (RPL) concerns ~3% of couples aiming at childbirth. In the current study, transcriptomes and miRNomes of 1st trimester placental chorionic villi were analysed for 2 RPL cases (≥6 miscarriages) and normal, but electively terminated pregnancies (ETP; n = 8). Sequencing was performed on Illumina HiSeq 2000 platform. Differential expression analyses detected 51 (27%) transcripts with increased and 138 (73%) with decreased expression in RPL compared to ETP (DESeq: FDR P < 0.1 and DESeq2: <0.05). RPL samples had substantially decreased transcript levels of histones, regulatory RNAs and genes involved in telomere, spliceosome, ribosomal, mitochondrial and intra-cellular signalling functions. Downregulated expression of HIST1H1B and HIST1H4A (Wilcoxon test, fc≤0.372, P≤9.37 × 10−4) was validated in an extended sample by quantitative PCR (RPL, n = 14; ETP, n = 24). Several upregulated genes are linked to placental function and pregnancy complications: ATF4, C3, PHLDA2, GPX4, ICAM1, SLC16A2. Analysis of the miRNA-Seq dataset identified no large disturbances in RPL samples. Notably, nearly 2/3 of differentially expressed genes have binding sites for E2F transcription factors, coordinating mammalian endocycle and placental development. For a conceptus destined to miscarriage, the E2F TF-family represents a potential key coordinator in reprogramming the placental genome towards gradually stopping the maintenance of basic nuclear and cellular functions.
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Affiliation(s)
- Siim Sõber
- Human Molecular Genetics Research Group, Institute of Molecular and Cell Biology, University of Tartu, Riia St. 23, 51010 Tartu, Estonia
| | - Kristiina Rull
- Human Molecular Genetics Research Group, Institute of Molecular and Cell Biology, University of Tartu, Riia St. 23, 51010 Tartu, Estonia.,Department of Obstetrics and Gynaecology, University of Tartu, L. Puusepa St. 8, Tartu 51014, Estonia.,Women's Clinic of Tartu University Hospital, L. Puusepa St. 8, Tartu 51014, Estonia
| | - Mario Reiman
- Human Molecular Genetics Research Group, Institute of Molecular and Cell Biology, University of Tartu, Riia St. 23, 51010 Tartu, Estonia
| | - Piret Ilisson
- Department of Genetics, United Laboratories of Tartu University Hospital, L. Puusepa St. 2, Tartu 51014, Estonia
| | - Pirkko Mattila
- The Institute for Molecular Medicine Finland (FIMM), Tukholmankatu 8, Helsinki FI-00014 Finland.,Finnish Red Cross Blood Service (FRCBS), Kivihaantie 7, Helsinki FI-00310, Finland
| | - Maris Laan
- Human Molecular Genetics Research Group, Institute of Molecular and Cell Biology, University of Tartu, Riia St. 23, 51010 Tartu, Estonia.,Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila St. 19, 50412 Tartu, Estonia
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Faucher P. [Complications of termination of pregnancy]. ACTA ACUST UNITED AC 2016; 45:1536-1551. [PMID: 27816250 DOI: 10.1016/j.jgyn.2016.09.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 09/20/2016] [Accepted: 09/20/2016] [Indexed: 11/15/2022]
Abstract
The legalization of abortion in France allowed to disappear almost maternal deaths caused by induced abortions. Nevertheless, the practice of abortion in a medical framework is encumbered with a number of immediate complications. Similarly, the late consequences of the practice of surgical abortion have generated an abundant literature, which it is important to analyse, both to meet the legitimate concerns of patients as to prevent any spread of false ideas under the influence of movements opposed to abortion.
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Affiliation(s)
- P Faucher
- Unité fonctionnelle d'orthogénie, hôpital Trousseau, 26, rue du Dr-Arnold-Netter, 75571 Paris cedex 12, France.
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Palomba S, Homburg R, Santagni S, La Sala GB, Orvieto R. Risk of adverse pregnancy and perinatal outcomes after high technology infertility treatment: a comprehensive systematic review. Reprod Biol Endocrinol 2016; 14:76. [PMID: 27814762 PMCID: PMC5097409 DOI: 10.1186/s12958-016-0211-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 10/26/2016] [Indexed: 11/10/2022] Open
Abstract
In the literature, there is growing evidence that subfertile patients who conceived after infertility treatments have an increased risk of pregnancy and perinatal complications and this is particularly true for patients who conceived through use of high technology infertility treatments. Moreover, high technology infertility treatments include many concomitant clinical and biological risk factors. This review aims to summarize in a systematic fashion the current evidence regarding the relative effect of the different procedures for high technology infertility treatments on the risk of adverse pregnancy and perinatal outcome. A literature search up to August 2016 was performed in IBSS, SocINDEX, Institute for Scientific Information, PubMed, Web of Science and Google Scholar and an evidence-based hierarchy was used to determine which articles to include and analyze. Data on prepregnancy maternal factors, low technology interventions, specific procedures for male factor, ovarian tissue/ovary and uterus transplantation, and chromosomal abnormalities and malformations of the offspring were excluded. The available evidences were analyzed assessing the level and the quality of evidence according to the Oxford Centre for Evidence-Based Medicine guidelines and the Grading of Recommendations Assessment, Development, and Evaluation system, respectively. Current review highlights that every single procedure of high technology infertility treatments can play a crucial role in increasing the risk of pregnancy and perinatal complications. Due to the suboptimal level and quality of the current evidence, further well-designed studies are needed.
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Affiliation(s)
- Stefano Palomba
- Center of Reproductive Medicine and Surgery, Arcispedale Santa Maria Nuova (ASMN)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Viale Risorgimento 80, 42123 Reggio Emilia, Italy
| | - Roy Homburg
- Homerton Fertility Unit, Homerton University Hospital, Homerton Row, London, UK
| | - Susanna Santagni
- Center of Reproductive Medicine and Surgery, Arcispedale Santa Maria Nuova (ASMN)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Viale Risorgimento 80, 42123 Reggio Emilia, Italy
| | - Giovanni Battista La Sala
- Center of Reproductive Medicine and Surgery, Arcispedale Santa Maria Nuova (ASMN)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Viale Risorgimento 80, 42123 Reggio Emilia, Italy
- University of Modena, Reggio Emilia, Italy
| | - Raoul Orvieto
- Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Ji W, Li W, Mei S, He P. Intrauterine hematomas in the second and third trimesters associated with adverse pregnancy outcomes: a retrospective study. J Matern Fetal Neonatal Med 2016; 30:2151-2155. [PMID: 27677317 DOI: 10.1080/14767058.2016.1241762] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To carry out a retrospective study of the clinical features of patients with intrauterine hematoma in the second and third trimesters, and discuss the risk factors for poor pregnancy outcomes. METHODS A total of 398 patients who underwent routine examination in our hospital from January 2011 to December 2015 were classified into normal pregnancy (NP) group (N = 265) and adverse pregnancy (AP) group (N = 133), according to their pregnancy outcomes. Maternal clinical demographics, gestational age, location of hematoma, volume of hematoma, and accompanying contraction and vaginal bleeding were recorded. RESULTS The average age of pregnant women in the NP and AP groups was 28.25 ± 4.06 and 29.5 ± 5.06 years, respectively (p = 0.007). Gestational age at first detection of hematoma was 15.11 ± 5.13 weeks in the NP group compared with 21.22 ± 8.25 weeks in the AP group (p < 0.001). In the AP group, the incidence of retroplacental hematoma (54.1%) and palpable contractions (62.8%) was significantly higher than in the NP group (25.7% and 12.1%, respectively; p < 0.01). However, similar maternal parity or history of delivery, volume of hematoma and incidence of vaginal bleeding were found. CONCLUSION Intrauterine hematoma in the second and third trimesters is a sign of pathological pregnancy, resulting in adverse outcomes. Maternal age, gestational age at first diagnosis, location of hematoma and accompanying contraction are risk factors for poor pregnancy outcomes.
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Affiliation(s)
- Wanqing Ji
- a Department of Obstetrics , Guangzhou Women and Children's Medical Center, Guangzhou Medical University , Guangzhou , China
| | - Weidong Li
- a Department of Obstetrics , Guangzhou Women and Children's Medical Center, Guangzhou Medical University , Guangzhou , China
| | - Shanshan Mei
- a Department of Obstetrics , Guangzhou Women and Children's Medical Center, Guangzhou Medical University , Guangzhou , China
| | - Ping He
- a Department of Obstetrics , Guangzhou Women and Children's Medical Center, Guangzhou Medical University , Guangzhou , China
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Betts D, Smith CA, Dahlen HG. Does acupuncture have a role in the treatment of threatened miscarriage? Findings from a feasibility randomised trial and semi-structured participant interviews. BMC Pregnancy Childbirth 2016; 16:298. [PMID: 27717319 PMCID: PMC5055689 DOI: 10.1186/s12884-016-1092-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 10/04/2016] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Threatened miscarriage is a common complication of early pregnancy increasing the risk of miscarriage or premature labour. Currently there is limited evidence to recommend any biomedical pharmacological or self-care management, resulting in a 'watchful waiting' approach. The objective of this study was to examine the feasibility of offering acupuncture as a therapeutic treatment for women presenting with threatened miscarriage. METHODS A mixed methods study involving a randomised controlled trial and semi structured interviews. A pragmatic acupuncture protocol including medical self-care advice was compared to an active control receiving touch intervention and medical self-care advice. Descriptive statistics were used to examine the demographic and baseline characteristics. Endpoints were analysed between groups using a mean t-test and chi-square tests with P < 0.05 considered statistically significant. Dichotomous data was expressed as Risk Ratio with 95 % confidence intervals. Eleven participants were purposively interviewed about their experiences on exiting the trial with interviews analysed using thematic analysis. RESULTS Forty women were successfully randomised. For women receiving acupuncture there was a statically significant reduction with threatened miscarriage symptoms including bleeding, cramping and back pain compared with the control (p = 0.04). Thematic analysis revealed women were dissatisfied with the medical support and advice received. An overarching theme emerged from the data of 'finding something you can do.' This encompassed the themes: 'they said there was nothing they could do,' 'feeling the benefits' and 'managing while marking time.' CONCLUSION Acupuncture was a feasible intervention and reduced threatened miscarriage symptoms when compared to a touch intervention. Further research is required to further explore acupuncture use for this common complication and whether it can reduce the incidence of miscarriage. TRIAL REGISTRATION Australian New Zealand Clinical Trials Registry (ANZCTR), ACTRN12610000850077 . Date of registration 12/10/2010. Retrospectively registered, with first participant enrolled 11/10/2012.
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Affiliation(s)
- Debra Betts
- National Institute of Complementary Medicine, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751 Australia
- New Zealand School Acupuncture and Traditional Chinese Medicine, P.O. Box 11076, Wellington, 6142 New Zealand
| | - Caroline A. Smith
- National Institute of Complementary Medicine, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751 Australia
| | - Hannah G. Dahlen
- School of Nursing and Midwifery, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751 Australia
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Analysis of pregnancy outcomes for survivors of the vanishing twin syndrome after in vitro fertilization and embryo transfer. Eur J Obstet Gynecol Reprod Biol 2016; 203:35-9. [DOI: 10.1016/j.ejogrb.2016.04.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 03/05/2016] [Accepted: 04/05/2016] [Indexed: 11/23/2022]
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Zhou J, Wu M, Wang B, Hou X, Wang J, Chen H, Zhang N, Hu Y, Sun H. The effect of first trimester subchorionic hematoma on pregnancy outcomes in patients underwent IVF/ICSI treatment. J Matern Fetal Neonatal Med 2016; 30:406-410. [PMID: 27045331 DOI: 10.1080/14767058.2016.1174682] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The aim of this retrospective cohort study was to assess the effect of subchorionic hematoma (SCH) on pregnancy outcomes in IVF/ICSI patients. METHODS We retrospectively analyzed 1097 pregnancies achieved by in vitro fertilization and embryo transfer (IVF-ET) or frozen-thawed embryo transfers (FETs) between January 2013 and June 2013 at the IVF center of Nanjing Drum Tower Hospital. The prevalence of SCH was 12.1% in this group (133/1097). We compared the pregnancy outcomes between the SCH group and non-SCH group, while the risk factors for SCH were also evaluated. RESULTS There was no significant difference between SCH group and non-SCH group with regard to patients' age, spouse's age, endometrial thickness, miscarriage rate (5.6% versus 6.2%, p > 0.05), second trimester fetus loss rate (5.6% versus 7.7%, p > 0.05) or live birth rate (89.5% versus 86.1%, p > 0.05). While the birth weight in singleton pregnancy in SCH group was significant lower (3207.8 ± 595.7 g versus 3349.2 ± 59.7 g, p = 0.03). SCH was more common in fresh embryo transfer patients than that in FET patients (16.6% versus 5.1%, p < 0.01), fresh embryo transfer was a high risk for SCH with OR 3.67, 95% CI: 2.28-5.90. CONCLUSION We concluded that SCH was associated with lower birth weight in singleton pregnancy, but SCH did not increase pregnancy loss rate in IVF/ICSI patients, and fresh embryo transfer may contribute to SCH onset.
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Affiliation(s)
- Jianjun Zhou
- a Reproductive Medicine Center, Department of Obstetrics and Gynecology, Drum Tower Hospital Affiliated to Nanjing University Medical College , Nanjing , Jiangsu , PR China
| | - Min Wu
- a Reproductive Medicine Center, Department of Obstetrics and Gynecology, Drum Tower Hospital Affiliated to Nanjing University Medical College , Nanjing , Jiangsu , PR China
| | - Bin Wang
- a Reproductive Medicine Center, Department of Obstetrics and Gynecology, Drum Tower Hospital Affiliated to Nanjing University Medical College , Nanjing , Jiangsu , PR China
| | - Xiaoni Hou
- a Reproductive Medicine Center, Department of Obstetrics and Gynecology, Drum Tower Hospital Affiliated to Nanjing University Medical College , Nanjing , Jiangsu , PR China
| | - Junxia Wang
- a Reproductive Medicine Center, Department of Obstetrics and Gynecology, Drum Tower Hospital Affiliated to Nanjing University Medical College , Nanjing , Jiangsu , PR China
| | - Hua Chen
- a Reproductive Medicine Center, Department of Obstetrics and Gynecology, Drum Tower Hospital Affiliated to Nanjing University Medical College , Nanjing , Jiangsu , PR China
| | - Ningyuan Zhang
- a Reproductive Medicine Center, Department of Obstetrics and Gynecology, Drum Tower Hospital Affiliated to Nanjing University Medical College , Nanjing , Jiangsu , PR China
| | - Yali Hu
- a Reproductive Medicine Center, Department of Obstetrics and Gynecology, Drum Tower Hospital Affiliated to Nanjing University Medical College , Nanjing , Jiangsu , PR China
| | - Haixiang Sun
- a Reproductive Medicine Center, Department of Obstetrics and Gynecology, Drum Tower Hospital Affiliated to Nanjing University Medical College , Nanjing , Jiangsu , PR China
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Fawzy M, Saravelos S, Li TC, Metwally M. Do women with recurrent miscarriage constitute a high-risk obstetric population? HUM FERTIL 2016; 19:9-15. [PMID: 27002424 DOI: 10.3109/14647273.2016.1142214] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of this study was to examine if women with history of recurrent miscarriage have a higher risk of maternal and foetal complications in future pregnancies. This was a retrospective case control study that analysed data collected prospectively between 2001 and 2007 from 400 women with history of recurrent miscarriage who achieved pregnancies progressing beyond 24 weeks gestation compared to 39,860 deliveries from the general obstetric database within the same time period. Results showed that women with recurrent miscarriage had significantly increased odds of low Apgar scores at one (odds ratios (OR) 1.57, 95% CI 1.20-2.05) and five minutes (OR 2.0, 95% CI 1.23-3.27), small for gestational age (OR 1.96, 95% CI 1.12-3.43), preterm delivery (OR 1.64, 95% CI 1.22-2.19) and antepartum haemorrhage (OR 7.67, 95% CI 4.23-13.91). The risks were increased in the presence of a male foetus but no difference was observed between primary and secondary miscarriage patients. In conclusion, women with recurrent miscarriage have an increased risk of several maternal and foetal complications and therefore may require closer monitoring during the antenatal period particularly when pregnant with a male foetus.
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Affiliation(s)
- Mona Fawzy
- a The Jessop Wing, Sheffield Teaching Hospitals NHS Foundation Trust , Sheffield , UK
| | - Sotirios Saravelos
- a The Jessop Wing, Sheffield Teaching Hospitals NHS Foundation Trust , Sheffield , UK
| | - Tin Chiu Li
- a The Jessop Wing, Sheffield Teaching Hospitals NHS Foundation Trust , Sheffield , UK
| | - Mostafa Metwally
- a The Jessop Wing, Sheffield Teaching Hospitals NHS Foundation Trust , Sheffield , UK
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He S, Allen JC, Malhotra R, Østbye T, Tan TC. Association of maternal serum progesterone in early pregnancy with low birth weight and other adverse pregnancy outcomes. J Matern Fetal Neonatal Med 2015; 29:1999-2004. [DOI: 10.3109/14767058.2015.1072159] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Fejzo MS, Magtira A, Schoenberg FP, Macgibbon K, Mullin PM. Neurodevelopmental delay in children exposed in utero to hyperemesis gravidarum. Eur J Obstet Gynecol Reprod Biol 2015; 189:79-84. [PMID: 25898368 DOI: 10.1016/j.ejogrb.2015.03.028] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 03/20/2015] [Accepted: 03/23/2015] [Indexed: 12/27/2022]
Abstract
OBJECTIVE The purpose of this study is to determine the frequency of emotional, behavioral, and learning disorders in children exposed in utero to hyperemesis gravidarum (HG) and to identify prognostic factors for these disorders. STUDY DESIGN Neurodevelopmental outcomes of 312 children from 203 mothers with HG were compared to neurodevelopmental outcomes from 169 children from 89 unaffected mothers. Then the clinical profiles of patients with HG and a normal child outcome were compared to the clinical profiles of patients with HG and a child with neurodevelopmental delay to identify prognostic factors. Binary responses were analyzed using either a Chi-square or Fisher Exact test and continuous responses were analyzed using a t-test. RESULTS Children exposed in utero to HG have a 3.28-fold increase in odds of a neurodevelopmental diagnosis including attention disorders, learning delay, sensory disorders, and speech and language delay (P<0.0005). Among characteristics of HG pregnancies, only early onset of symptoms (prior to 5 weeks gestation) was significantly linked to neurodevelopmental delay. We found no evidence for increased risk of 13 emotional, behavioral, and learning disorders, including autism, intellectual impairment, and obsessive-compulsive disorder. However, the study was not sufficiently powered to detect rare conditions. Medications, treatments, and preterm birth were not associated with an increased risk for neurodevelopmental delay. CONCLUSION Women with HG are at a significantly increased risk of having a child with neurodevelopmental delay. Common antiemetic treatments were not linked to neurodevelopmental delay, but early symptoms may play a role. There is an urgent need to address whether aggressive treatment that includes vitamin and nutrient supplementation in women with early symptoms of severe nausea of pregnancy decreases the risk of neurodevelopmental delay.
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Affiliation(s)
- Marlena S Fejzo
- University of California, Los Angeles, Department of Obstetrics, Gynecology, and Medicine, Los Angeles, CA, USA; Keck School of Medicine, University of Southern California, Department of Maternal-Fetal Medicine, Los Angeles, CA, USA.
| | - Aromalyn Magtira
- University of California, Los Angeles, Department of Statistics, Los Angeles, CA, USA
| | | | - Kimber Macgibbon
- Hyperemesis Education and Research Foundation, Leesburg, VA, USA
| | - Patrick M Mullin
- Keck School of Medicine, University of Southern California, Department of Maternal-Fetal Medicine, Los Angeles, CA, USA
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Field K, Murphy DJ. Perinatal outcomes in a subsequent pregnancy among women who have experienced recurrent miscarriage: a retrospective cohort study. Hum Reprod 2015; 30:1239-45. [DOI: 10.1093/humrep/dev044] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 02/10/2015] [Indexed: 12/31/2022] Open
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Evaluation of the role of maternal serum high-sensitivity C-reactive protein in predicting early pregnancy failure. Reprod Biomed Online 2015; 30:268-74. [DOI: 10.1016/j.rbmo.2014.11.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 11/14/2014] [Accepted: 11/18/2014] [Indexed: 01/21/2023]
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