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Gravett MG, Menon R, Tribe RM, Hezelgrave NL, Kacerovsky M, Soma-Pillay P, Jacobsson B, McElrath TF. Assessment of current biomarkers and interventions to identify and treat women at risk of preterm birth. Front Med (Lausanne) 2024; 11:1414428. [PMID: 39131090 PMCID: PMC11312378 DOI: 10.3389/fmed.2024.1414428] [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: 04/08/2024] [Accepted: 07/15/2024] [Indexed: 08/13/2024] Open
Abstract
Preterm birth remains an important global problem, and an important contributor to under-5 mortality. Reducing spontaneous preterm birth rates at the global level will require the early identification of patients at risk of preterm delivery in order to allow the initiation of appropriate prophylactic management strategies. Ideally these strategies target the underlying pathophysiologic causes of preterm labor. Prevention, however, becomes problematic as the causes of preterm birth are multifactorial and vary by gestational age, ethnicity, and social context. Unfortunately, current screening and diagnostic tests are non-specific, with only moderate clinical risk prediction, relying on the detection of downstream markers of the common end-stage pathway rather than identifying upstream pathway-specific pathophysiology that would help the provider initiate targeted interventions. As a result, the available management options (including cervical cerclage and vaginal progesterone) are used empirically with, at best, ambiguous results in clinical trials. Furthermore, the available screening tests have only modest clinical risk prediction, and fail to identify most patients who will have a preterm birth. Clearly defining preterm birth phenotypes and the biologic pathways leading to preterm birth is key to providing targeted, biomolecular pathway-specific interventions, ideally initiated in early pregnancy Pathway specific biomarker discovery, together with management strategies based on early, mid-, and-late trimester specific markers is integral to this process, which must be addressed in a systematic way through rigorously planned biomarker trials.
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Affiliation(s)
- Michael G. Gravett
- Department of Obstetrics and Gynecology and of Global Health, University of Washington, Seattle, WA, United States
| | - Ramkumar Menon
- Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Rachel M. Tribe
- Department of Women and Children's Health, Faculty of Life Sciences and Medicine, School of Life Course Sciences, St Thomas' Hospital Campus, King's College London, London, United Kingdom
| | - Natasha L. Hezelgrave
- Department of Women and Children’s Health, Faculty of Life Sciences and Medicine, School of Life Course Sciences, King’s College London, London, United Kingdom
| | - Marian Kacerovsky
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czechia
- Department of Obstetrics and Gynecology, Faculty of Medicine Hradec Kralove, Charles University in Prague, Hradec Kralove, Czechia
| | - Priya Soma-Pillay
- Department of Obstetrics and Gynaecology, The University of Pretoria School of Medicine, Pretoria, South Africa
| | - Bo Jacobsson
- Department of Obstetrics and Gynecology, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
- Department of Genetics and Bioinformatics, Domain of Health Data and Digitalization, Norwegian Institute of Public Health, Oslo, Norway
| | - Thomas F. McElrath
- Department of Obstetrics and Gynecology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
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Hall M, Suff N, Slator P, Rutherford M, Shennan A, Hutter J, Story L. Placental multimodal MRI prior to spontaneous preterm birth <32 weeks' gestation: An observational study. BJOG 2024. [PMID: 38956748 DOI: 10.1111/1471-0528.17901] [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: 01/25/2024] [Revised: 05/22/2024] [Accepted: 06/20/2024] [Indexed: 07/04/2024]
Abstract
OBJECTIVE To utilise combined diffusion-relaxation MRI techniques to interrogate antenatal changes in the placenta prior to extreme preterm birth among both women with PPROM and membranes intact, and compare this to a control group who subsequently delivered at term. DESIGN Observational study. SETTING Tertiary Obstetric Unit, London, UK. POPULATION Cases: pregnant women who subsequently spontaneously delivered a singleton pregnancy prior to 32 weeks' gestation without any other obstetric complications. CONTROLS pregnant women who delivered an uncomplicated pregnancy at term. METHODS All women consented to an MRI examination. A combined diffusion-relaxation MRI of the placenta was undertaken and analysed using fractional anisotropy, a combined T2*-apparent diffusion coefficient model and a combined T2*-intravoxel incoherent motion model, in order to provide a detailed placental phenotype associated with preterm birth. Subgroup analyses based on whether women in the case group had PPROM or intact membranes at time of scan, and on latency to delivery were performed. MAIN OUTCOME MEASURES Fractional anisotropy, apparent diffusion coefficients and T2* placental values, from two models including a combined T2*-IVIM model separating fast- and slow-flowing (perfusing and diffusing) compartments. RESULTS This study included 23 women who delivered preterm and 52 women who delivered at term. Placental T2* was lower in the T2*-apparent diffusion coefficient model (p < 0.001) and in the fast- and slow-flowing compartments (p = 0.001 and p < 0.001) of the T2*-IVIM model. This reached a higher level of significance in the preterm prelabour rupture of the membranes group than in the membranes intact group. There was a reduced perfusion fraction among the cases with impending delivery. CONCLUSIONS Placental diffusion-relaxation reveals significant changes in the placenta prior to preterm birth with greater effect noted in cases of preterm prelabour rupture of the membranes. Application of this technique may allow clinically valuable interrogation of histopathological changes before preterm birth. In turn, this could facilitate more accurate antenatal prediction of preterm chorioamnionitis and so aid decisions around the safest time of delivery. Furthermore, this technique provides a research tool to improve understanding of the pathological mechanisms associated with preterm birth in vivo.
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Affiliation(s)
- Megan Hall
- Centre for the Developing Brain, St Thomas' Hospital, King's College London, London, UK
- Department of Women and Children's Health, St Thomas' Hospital, King's College London, London, UK
| | - Natalie Suff
- Department of Women and Children's Health, St Thomas' Hospital, King's College London, London, UK
| | - Paddy Slator
- Cardiff University Brain Research Imaging Centre, Cardiff University, Cardiff, UK
- School of Computer Science and Informatics, Cardiff University, Cardiff, UK
| | - Mary Rutherford
- Centre for the Developing Brain, St Thomas' Hospital, King's College London, London, UK
| | - Andrew Shennan
- Department of Women and Children's Health, St Thomas' Hospital, King's College London, London, UK
| | - Jana Hutter
- Centre for the Developing Brain, St Thomas' Hospital, King's College London, London, UK
- Smart Imaging Lab, Radiological Institute, University Hospital Erlangen, Erlangen, Germany
| | - Lisa Story
- Centre for the Developing Brain, St Thomas' Hospital, King's College London, London, UK
- Department of Women and Children's Health, St Thomas' Hospital, King's College London, London, UK
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Liza V, Ravikumar G. Placental correlates in categories of preterm births based on gestational age. Placenta 2024; 152:9-16. [PMID: 38744037 DOI: 10.1016/j.placenta.2024.05.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 04/03/2024] [Accepted: 05/05/2024] [Indexed: 05/16/2024]
Abstract
Placental abnormalities can precipitate preterm birth (PTB), a principal contributor to neonatal morbidity and mortality. This study targets understanding placental variations among different gestational age-based categories of PTB. METHODS A three-year retrospective study conducted a detailed clinicopathological analysis of PTB placentas categorized by gestational age: extremely preterm (EPTB,<28 weeks), very preterm (VPTB, 28 to 31 + 6 weeks), moderate preterm (MPTB, 32 to 33 + 6 weeks), and late preterm (LPTB, 34 to 36 + 6 weeks). Macroscopic parameters sourced from pathology records and microscopic examination assessed for maternal and fetal stromal-vascular lesions, inflammatory and hypoxic lesions and others. Stillbirths/intrauterine demise and multifetal gestation were excluded. Clinical data were gathered from medical records. RESULTS A total of 645 preterm placentas were received and 538 were included. The majority were LPTB(46.3 %), while EPTB, VPTB and MPTB accounted for 5.8 %, 28.4 % and 19.5 % respectively. Low birth weight and low Apgar were prevalent in EPTB(p < 0.001), while obstetric complications were higher in other PTB categories. Placental infarction was higher in VPTB and MPTB(p = 0.006). On microscopy, maternal (48.4 %), fetal (29 %) inflammatory response and villous edema (48.4 %) was higher in EPTB(p = 0.04 & p < 0.001 respectively), while maternal stromal-vascular lesions were higher in VPTB and MPTB(67.3 % & 64.8 %, p < 0.001). Delayed villous maturation (17.7 %,p = 0.02), chronic chorioamnionitis (11.3 %,p = 0.02), membrane hypoxia (38.6 %,p = 0.007), and massive fibrin deposition (10.8 %,p < 0.001) featured higher in LPTB. DISCUSSION Acute inflammatory pathology was common in EPTB, strongly suggesting inflammation in triggering parturition. Frequent obstetric complications and maternal stromal-vascular lesions in VPTB and MPTB may underscore maternal vascular compromise in this group. Villous maturation defects, chronic chorioamnionitis, massive fibrin deposition and membrane hypoxia in LPTB, likely contribute to long-term neonatal morbidity.
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Affiliation(s)
- Victoria Liza
- Department of Pathology, St. John's Medical College, Bangalore, India, 560076.
| | - Gayatri Ravikumar
- Department of Pathology, St. John's Medical College, Bangalore, India, 560076.
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Kacerovsky M, Hornychova H, Jaiman S, Pavlikova L, Holeckova M, Jacobsson B, Tsiartas P, Musilova I. Angiogenic imbalance in pregnancies with preterm prelabor rupture of membranes between 34 and 37 weeks of gestation. Acta Obstet Gynecol Scand 2024; 103:1120-1131. [PMID: 38511515 PMCID: PMC11103135 DOI: 10.1111/aogs.14833] [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: 11/23/2023] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/22/2024]
Abstract
INTRODUCTION This study aimed to identify whether microbial invasion of the amniotic cavity and/or intra-amniotic inflammation in women with late preterm prelabor rupture of membranes (PPROM) was associated with changes in concentrations of soluble fms-like tyrosine kinase-1 (sFlt-1), placental growth factor (PlGF) and its ratio in maternal serum, and whether placental features consistent with maternal vascular malperfusion further affect their concentrations. MATERIAL AND METHODS This historical study included 154 women with singleton pregnancies complicated by PPROM between gestational ages 34+0 and 36+6 weeks. Transabdominal amniocentesis was performed as part of standard clinical management to evaluate the intra-amniotic environment. Women were categorized into two subgroups based on the presence of microorganisms and/or their nucleic acids in amniotic fluid (determined by culturing and molecular biology method) and intra-amniotic inflammation (by amniotic fluid interleukin-6 concentration evaluation): (1) those with the presence of microorganisms and/or inflammation (at least one present) and (2) those with negative amniotic fluid for infection/inflammation (absence of both). Concentrations of sFlt-1 and PlGF were assessed using the Elecsys® sFlt-1 and Elecsys® PlGF immunoassays and converted into multiples of medians. RESULTS Women with the presence of microorganisms and/or inflammation in amniotic fluid had lower serum concentrations of sFlt-1 and sFlt-1/PlGF ratios and higher concentrations of PlGF compared with those with negative amniotic fluid. (sFlt-1: presence: median 1.0 multiples of the median (MoM), vs negative: median: 1.5 MoM, P = 0.003; PlGF: presence: median 0.7 MoM, vs negative: median 0.4 MoM, P = 0.02; sFlt-1/PlGF: presence: median 8.9 vs negative 25.0, P = 0.001). Higher serum concentrations of sFlt-1 and sFlt-1/PlGF ratios as well as lower concentrations of PlGF were found in the subsets of women with maternal vascular malperfusion than in those without maternal vascular malperfusion. CONCLUSIONS Among women experiencing late PPROM, angiogenic imbalance in maternal serum is primarily observed in those without both microbial invasion of the amniotic cavity and intra-amniotic inflammation. Additionally, there is an association between angiogenic imbalance and the presence of maternal vascular malperfusion.
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Affiliation(s)
- Marian Kacerovsky
- Biomedical Research CenterUniversity Hospital Hradec KraloveHradec KraloveCzech Republic
- Department of Obstetrics and GynecologyHospital MostUsti nad LabemCzech Republic
| | - Helena Hornychova
- Fingerland Institute of PathologyUniversity Hospital Hradec Kralove, Charles University, Faculty of Medicine in Hradec KraloveHradec KraloveCzech Republic
| | - Sunil Jaiman
- Department of Pathology, School of Medicine DetroitWayne State UniversityDetroitMichiganUSA
| | - Ladislava Pavlikova
- Institute of Clinical Biochemistry and DiagnosticsUniversity Hospital Hradec Kralove, Charles University, Faculty of Medicine in Hradec KraloveHradec KraloveCzech Republic
| | - Magdalena Holeckova
- Institute of Clinical Biochemistry and DiagnosticsUniversity Hospital Hradec Kralove, Charles University, Faculty of Medicine in Hradec KraloveHradec KraloveCzech Republic
| | - Bo Jacobsson
- Department of Obstetrics and Gynecology, Institute of Clinical Science, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Department of Obstetrics and Gynecology, Region Västra GötalandSahlgrenska University HospitalGothenburgSweden
- Department of Genetics and Bioinformatics, Domain of Health Data and DigitalizationInstitute of Public HealthOsloNorway
| | - Panagiotis Tsiartas
- Department of Clinical Science, Intervention and Technology (CLINTEC), Division of Obstetrics and GynecologyKarolinska InstituteStockholmSweden
- Nordic IVF, Eugin groupSolnaSweden
| | - Ivana Musilova
- Biomedical Research CenterUniversity Hospital Hradec KraloveHradec KraloveCzech Republic
- Department of Obstetrics and GynecologyHospital MostUsti nad LabemCzech Republic
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Allo G, Sitarik AR, Redding A, Coleman CM, Cassidy-Bushrow AE, Gaba A, Straughen JK. Maternal COVID-19 exposure and placental characteristics. PLoS One 2024; 19:e0302682. [PMID: 38781150 PMCID: PMC11115219 DOI: 10.1371/journal.pone.0302682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 04/05/2024] [Indexed: 05/25/2024] Open
Abstract
INTRODUCTION The impact of COVID-19 on the placenta is poorly described, particularly among minority women. MATERIALS AND METHODS This is a retrospective case-control study. Micro- and macroscopic placental pathologic findings were compared for 15 COVID-19 positive and 36 negative mothers. Cases and controls were frequency matched on gestational age, race, maternal comorbidities, and delivery type. Data from the electronic medical record were supplemented with independent review of microscopic slides. RESULTS Placentas from cases and controls were similar except the median distance from the site of the cord insertion to the nearest disk margin was statistically significantly shorter among placentas from COVID-19 positive cases (3.5 versus 6.0 cm, p = 0.006). Case status was not associated with an increased risk of placental pathologies. CONCLUSION There are few pathologic differences between placentas of COVID-19 positive and negative mothers. Additional studies are needed to investigate the role of timing of infection.
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Affiliation(s)
- Ghassan Allo
- Department of Pathology, Henry Ford Hospital, Detroit, MI, United States of America
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, East Lansing, MI, United States of America
| | - Alexandra R. Sitarik
- Department of Public Health Sciences, Henry Ford Health, Detroit, MI, United States of America
| | - Ashley Redding
- Department of Public Health Sciences, Henry Ford Health, Detroit, MI, United States of America
| | - Chad M. Coleman
- Department of Public Health Sciences, Henry Ford Health, Detroit, MI, United States of America
| | | | - Arthur Gaba
- Department of Pathology, Henry Ford Hospital, Detroit, MI, United States of America
| | - Jennifer K. Straughen
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, East Lansing, MI, United States of America
- Department of Public Health Sciences, Henry Ford Health, Detroit, MI, United States of America
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Suresh S, Freedman A, Adams M, Hirsch E, Ernst LM. Placental histology for targeted risk assessment of recurrent spontaneous preterm birth. Am J Obstet Gynecol 2024; 230:452.e1-452.e11. [PMID: 37751829 DOI: 10.1016/j.ajog.2023.09.018] [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: 06/30/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Spontaneous preterm birth significantly increases the risk for a recurrent preterm birth. Only a few identifiable clinical risk factors can be referenced in counseling for recurrent preterm birth. Furthermore, treatment using progesterone supplementation has not consistently prevented preterm birth among high-risk patients, but it may be effective in a subset of those patients. Placental pathology from a previous pregnancy may be used to predict which patients will experience a recurrent preterm birth or to identify a subset of patients more likely to respond to treatment with antenatal progesterone. OBJECTIVE This study aimed to determine if histologic patterns are associated with recurrent preterm birth among patients with an index spontaneous preterm birth. A secondary objective was to determine if placental histologic types and/or progesterone receptor density in the decidua are associated with the response to progesterone supplementation with intramuscular 17-hydroxyprogesterone caproate. STUDY DESIGN This was a retrospective cohort study at a single institution of women with singleton pregnancies with an index spontaneous preterm birth and a subsequent birth within the same hospital system between 2009 and 2019. Patients were included if placental pathology was available for the index spontaneous preterm birth. A logistic regression was used to determine if there were independent associations between 4 histologic types (acute inflammation, maternal vascular malperfusion, fetal vascular malperfusion, chronic inflammation) and recurrent preterm birth. For the secondary endpoint, 17-hydroxyprogesterone caproate response was defined as prolonging gestation by >3 weeks beyond the gestational age at delivery in the index pregnancy. Patients who delivered <3 weeks beyond the gestational age in the index pregnancy but at ≥39 weeks' gestation were excluded. A logistic regression was used to assess the independent association between placental histology and 17-hydroxyprogesterone caproate response. Sensitivity analyses were completed using only patients with an index birth <36 weeks' gestation, and then excluding those with medically indicated preterm birth in a subsequent pregnancy. A nested case-control immunohistochemical study was done among 20 patients with a subsequent term birth and 20 patients with a subsequent spontaneous preterm birth. The percentage of cells in the maternal decidua positive for progesterone receptors was correlated with the subsequent pregnancy outcome. RESULTS A total of 352 patients were included. Acute inflammation was the most common histologic type seen among patients with spontaneous preterm birth (44.1%), followed by chronic inflammation (40.9%) and maternal vascular malperfusion (31.3%). No histologic type was independently associated with recurrent preterm birth. A total of 155 patients received 17-hydroxyprogesterone caproate in a second pregnancy. Low-grade acute inflammation was significantly associated with a decreased likelihood of 17-hydroxyprogesterone caproate response. Low-grade maternal vascular malperfusion among those with an index pregnancy delivered at <36 weeks' gestation was significantly associated with a more than 4 times increased likelihood of 17-hydroxyprogesterone caproate response when excluding those with a subsequent iatrogenic preterm birth. Progesterone receptor staining was not associated with recurrent preterm birth. CONCLUSION Although acute inflammation was prevalent among spontaneous preterm births, more than half of the spontaneous preterm births were not associated with acute inflammation. Low-grade acute inflammation was associated with a significantly decreased response to 17-hydroxyprogesterone caproate supplementation. Low-grade maternal vascular malperfusion was associated with a 4-fold increased likelihood of 17-hydroxyprogesterone caproate response among those with index deliveries <36 weeks' gestation. Further work is needed to determine if placental pathologic examination can be used to target treatment in subsequent pregnancies to prevent recurrent preterm birth.
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Affiliation(s)
- Sunitha Suresh
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL.
| | - Alexa Freedman
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL
| | - Marci Adams
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL
| | - Emmet Hirsch
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL; University of Chicago Pritzker School of Medicine, Chicago, IL
| | - Linda M Ernst
- University of Chicago Pritzker School of Medicine, Chicago, IL; Director of Perinatal Pathology, Department of Pathology and Laboratory Medicine, NorthShore University HealthSystem, Evanston, IL
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Terada S, Nishimura H, Miyasaka N, Fujiwara T. Ambient temperature and preterm birth: A case-crossover study. BJOG 2024; 131:632-640. [PMID: 37984435 DOI: 10.1111/1471-0528.17720] [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: 06/20/2023] [Revised: 10/25/2023] [Accepted: 10/29/2023] [Indexed: 11/22/2023]
Abstract
OBJECTIVE To investigate the association between ambient temperature and preterm birth (PTB) and to estimate the population attributable fraction (PAF) of PTBs due to low and high temperatures. DESIGN Time-stratified case-crossover design. SETTING Japan (46 prefectures, excluding Okinawa), 2011-2020. SAMPLE 214 050 PTBs registered in the Japan Perinatal Registry Network database among 1 908 168 singleton live births. METHODS A quasi-Poisson regression model with a distributed lag nonlinear model was employed to assess the associations between daily mean temperature and PTBs for a lag of 0-27 days in each prefecture. A random effects meta-analysis was conducted by combining effect estimates from the 46 prefectures to estimate pooled relative risks (RRs). The PAFs of the PTBs due to below or above the mean of the 46 median temperatures (16.0°C) were calculated. MAIN OUTCOME MEASURES Preterm singleton live births. RESULTS The association between daily mean temperature and PTB risk exhibited a U-shaped curve. The adjusted RRs were 1.15 (95% confidence interval [CI] 1.05-1.25) at the mean of the 1st percentiles (0.8°C) and 1.08 (95% CI 1.00-1.17) at the mean of the 99th percentiles (30.2°C) of 46 prefectures, with 16.0°C as the reference temperature. Approximately 2.3% (95% CI 0.6-4.0) of PTBs were attributable to low temperatures. CONCLUSIONS Both low and possibly high temperatures were associated with an increased risk of PTBs. These findings may help to inform preventive measures for pregnant women.
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Affiliation(s)
- Shuhei Terada
- Department of Global Health Promotion, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hisaaki Nishimura
- Department of Global Health Promotion, Tokyo Medical and Dental University, Tokyo, Japan
| | - Naoyuki Miyasaka
- Department of Obstetrics and Gynaecology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takeo Fujiwara
- Department of Global Health Promotion, Tokyo Medical and Dental University, Tokyo, Japan
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Jacobs A, Al-Juboori SI, Dobrinskikh E, Bolt MA, Sammel MD, Lijewski V, Post MD, Small JM, Su EJ. Placental differences between severe fetal growth restriction and hypertensive disorders of pregnancy requiring early preterm delivery: morphometric analysis of the villous tree supported by artificial intelligence. Am J Obstet Gynecol 2024:S0002-9378(24)00370-3. [PMID: 38423447 PMCID: PMC11347726 DOI: 10.1016/j.ajog.2024.02.291] [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: 08/07/2023] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND The great obstetrical syndromes of fetal growth restriction and hypertensive disorders of pregnancy can occur individually or be interrelated. Placental pathologic findings often overlap between these conditions, regardless of whether 1 or both diagnoses are present. Quantification of placental villous structures in each of these settings may identify distinct differences in developmental pathways. OBJECTIVE This study aimed to determine how the quantity and surface area of placental villi and vessels differ between severe, early-onset fetal growth restriction with absent or reversed umbilical artery Doppler indices and hypertensive disorders of pregnancy or the 2 conditions combined among subjects with disease severity that warrant early preterm delivery. We hypothesized that the trajectories of placental morphogenesis diverge after a common initiating insult of deep defective placentation. Specifically, we postulated that only villi are affected in pregnancy-related hypertension, whereas both villous and vascular structures are proportionally diminished in severe fetal growth restriction with no additional effect when hypertension is concomitantly present. STUDY DESIGN In this retrospective cohort study, paraffin-embedded placental tissue was obtained from 4 groups, namely (1) patients with severe fetal growth restriction with absent or reversed umbilical artery end-diastolic velocities and hypertensive disorders of pregnancy, (2) patients with severe fetal growth restriction with absent or reversed umbilical artery Doppler indices and no hypertension, (3) gestational age-matched, appropriately grown pregnancies with hypertensive disease, and (4) gestational age-matched, appropriately grown pregnancies without hypertension. Dual immunohistochemistry for cytokeratin-7 (trophoblast) and CD34 (endothelial cells) was performed, followed by artificial intelligence-driven morphometric analyses. The number of villi, total villous area, number of fetoplacental vessels, and total vascular area across villi within a uniform region of interest were quantified. Quantitative analyses of placental structures were modeled using linear regression. RESULTS Placentas from pregnancies complicated by hypertensive disorders of pregnancy exhibited significantly fewer stem villi (-282 stem villi; 95% confidence interval, -467 to -98; P<.01), a smaller stem villous area (-4.3 mm2; 95% confidence interval, -7.3 to -1.2; P<.01), and fewer stem villous vessels (-4967 stem villous vessels; 95% confidence interval, -8501 to -1433; P<.01) with no difference in the total vascular area. In contrast, placental abnormalities in cases with severe growth restriction were limited to terminal villi with global decreases in the number of villi (-873 terminal villi; 95% confidence interval, -1501 to -246; P<.01), the villous area (-1.5 mm2; 95% confidence interval, -2.7 to -0.4; P<.01), the number of blood vessels (-5165 terminal villous vessels; 95% confidence interval, -8201 to -2128; P<.01), and the vascular area (-0.6 mm2; 95% confidence interval, -1.1 to -0.1; P=.02). The combination of hypertension and growth restriction had no additional effect beyond the individual impact of each state. CONCLUSION Pregnancies complicated by hypertensive disorders of pregnancy exhibited defects in the stem villi only, whereas placental abnormalities in severely growth restricted pregnancies with absent or reversed umbilical artery end-diastolic velocities were limited to the terminal villi. There were no significant statistical interactions in the combination of growth restriction and hypertension, suggesting that distinct pathophysiological pathways downstream of the initial insult of defective placentation are involved in each entity and do not synergize to lead to more severe pathologic consequences. Delineating mechanisms that underly the divergence in placental development after a common inciting event of defective deep placentation may shed light on new targets for prevention or treatment.
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Affiliation(s)
- Anna Jacobs
- Rocky Vista University College of Osteopathic Medicine, Parker, CO
| | - Saif I Al-Juboori
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Evgenia Dobrinskikh
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO; Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, CO
| | - Matthew A Bolt
- Center for Innovative Design and Analysis, Department of Biostatistics and Informatics, Colorado School of Public Health, Aurora, CO
| | - Mary D Sammel
- Center for Innovative Design and Analysis, Department of Biostatistics and Informatics, Colorado School of Public Health, Aurora, CO
| | - Virginia Lijewski
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, CO
| | - Miriam D Post
- Department of Pathology, University of Colorado School of Medicine, Aurora, CO
| | - James M Small
- Department of Biomedical Sciences; Rocky Vista University College of Osteopathic Medicine, Parker, CO
| | - Emily J Su
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, CO; Division of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, CO.
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de Graaff E, Bartlett K, Sadler L, Lakhdhir H, Simon-Kumar R, Peiris-John R, Burgess W, Cronin R, McCowan L, Anderson N. Placental pathology findings in perinatal deaths from 28 weeks gestation in Aotearoa New Zealand. Placenta 2023; 138:97-108. [PMID: 37245428 DOI: 10.1016/j.placenta.2023.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/24/2023] [Accepted: 05/17/2023] [Indexed: 05/30/2023]
Abstract
INTRODUCTION Women of South Asian ethnicity are overrepresented in adverse pregnancy outcome across high-income countries, including those related to placental dysfunction. It has been hypothesised that placental aging occurs at earlier gestation in South Asian pregnancies. We aimed to identify differences in placental pathology among perinatal deaths ≥28 weeks gestation, between South Asian, Māori and New Zealand (NZ) European women in Aotearoa NZ, with a focus on women of South Asian ethnicity. METHODS Placental pathology reports and clinical data from perinatal deaths between 2008 and 2017 were provided by the NZ Perinatal and Maternal Mortality Review Committee, blinded, and analysed by an experienced perinatal pathologist using the Amsterdam Placental Workshop Group Consensus Statement criteria. RESULTS 790 of 1161 placental pathology reports, 346 preterm (28+0 to 36+6 weeks) and 444 term (≥37+0 weeks) deaths, met the inclusion criteria. Among preterm deaths, South Asian women had higher rates of maternal vascular malperfusion compared with Māori (aOR 4.16, 95%CI 1.55-11.15) and NZ European (aOR 2.60, 95%CI 1.10-6.16). Among term deaths, South Asian women had higher rates of abnormal villous morphology compared with Māori (aOR 2.19, 95%CI 1.04-4.62) and NZ European (aOR 2.12, 95%CI 1.14-3.94), mostly due to increased rates of chorangiosis (36.7%, compared to 23.3% and 21.7%, respectively). DISCUSSION Differences in placental pathology by ethnicity were observed among preterm and term perinatal deaths. While we suspect differing underlying causal pathways, these deaths may be associated with maternal diabetic and red blood cell disorders among South Asian women, leading to a hypoxic state in-utero.
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Affiliation(s)
- Esti de Graaff
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - Kate Bartlett
- Auckland District Health Board LabPlus, Auckland City Hospital, Building 31, Gate 4 Grafton Road, Grafton, Auckland, 1148, New Zealand.
| | - Lynn Sadler
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand; Te Toka Tumai Auckland, Te Whatu Ora Health, 2 Park Road, Grafton, Auckland, 1023, New Zealand.
| | - Heena Lakhdhir
- Counties Manukau District, Division of Women's Health, Te Whatu Ora - Health, 100 Hospital Road, Ōtāhuhu, Auckland, 2025, New Zealand.
| | - Rachel Simon-Kumar
- The University of Auckland School of Population Health, Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - Roshini Peiris-John
- The University of Auckland Section of Epidemiology and Biostatistics, Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - Wendy Burgess
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - Robin Cronin
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand; Counties Manukau District, Division of Women's Health, Te Whatu Ora - Health, 100 Hospital Road, Ōtāhuhu, Auckland, 2025, New Zealand.
| | - Lesley McCowan
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - Ngaire Anderson
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
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10
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de Graaff E, Bartlett K, Sadler L, Lakhdhir H, Simon-Kumar R, Peiris-John R, Burgess W, Cronin R, McCowan L, Anderson N. Placental pathology findings amongst extremely preterm perinatal deaths in Aotearoa New Zealand. Placenta 2023; 137:78-87. [PMID: 37120961 DOI: 10.1016/j.placenta.2023.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/02/2023] [Accepted: 04/18/2023] [Indexed: 05/02/2023]
Abstract
INTRODUCTION Women of South Asian ethnicity are overrepresented in adverse pregnancy outcomes across high-income countries, including placental dysfunction and antepartum haemorrhage. As the burden of mortality is highest for extremely preterm infants, we aimed to identify any differences in placental pathology among perinatal deaths from 20+0 to 27+6 weeks gestation between South Asian, Māori and New Zealand (NZ) European women in Aotearoa NZ, with a focus on women of South Asian ethnicity. METHODS Placental pathology reports and clinical data from perinatal deaths between 2008 and 2017 were provided by the NZ Perinatal and Maternal Mortality Review Committee, blinded and analysed by an experienced perinatal pathologist using the Amsterdam Placental Workshop Group Consensus Statement criteria. South Asian ethnicity was classified as Indian, Fijian Indian, South African Indian, Sri Lankan, Pakistani and Bangladeshi. RESULTS 886 of 1571 placental pathology reports met the inclusion criteria. Women of South Asian ethnicity were significantly more likely to show features of histologic chorioamnionitis (aOR 1.87, 95%CI 1.19-2.94) and chorionic vasculitis (aOR 1.92, 95%CI 1.13-3.29), than NZ European and Māori women respectively. 13 of 15 (87%) of South Asian mothers with a diabetic disorder were identified with chorioamnionitis, compared to 1 in 5 (20%) of Māori and 5 in 12 (41%) of NZ European women. Cord hyper-coiling was also more common among South Asian pregnancies, compared to NZ European (aOR 1.98, 95%CI 1.10-3.56). DISCUSSION Differences in placental pathology by ethnicity were observed among extremely preterm perinatal deaths. Underlying metabolic disorders and an associated pro-inflammatory environment may play an important role in the causal pathway leading to these deaths in women of South Asian ethnicity.
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Affiliation(s)
- Esti de Graaff
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Auckland, New Zealand Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - Kate Bartlett
- Auckland District Health Board LabPlus, Auckland City Hospital, Auckland, New Zealand Building 31, Gate 4 Grafton Road, Grafton, Auckland, 1148, New Zealand.
| | - Lynn Sadler
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Auckland, New Zealand Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand; Te Toka Tumai Auckland, Te Whatu Ora Health New Zealand 2 Park Road, Grafton, Auckland, 1023, New Zealand.
| | - Heena Lakhdhir
- Counties Manukau District, Division of Women's Health, Te Whatu Ora - Health New Zealand 100 Hospital Road, Ōtāhuhu, Auckland, 2025, New Zealand.
| | - Rachel Simon-Kumar
- The University of Auckland School of Population Health, Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - Roshini Peiris-John
- The University of Auckland Section of Epidemiology and Biostatistics, Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - Wendy Burgess
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Auckland, New Zealand Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - Robin Cronin
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Auckland, New Zealand Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand; Counties Manukau District, Division of Women's Health, Te Whatu Ora - Health New Zealand 100 Hospital Road, Ōtāhuhu, Auckland, 2025, New Zealand.
| | - Lesley McCowan
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Auckland, New Zealand Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - Ngaire Anderson
- The University of Auckland Faculty of Medical and Health Sciences, Obstetrics & Gynaecology, Auckland, New Zealand Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
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11
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Ferraz T, Benton SJ, Zareef I, Aribaloye O, Bloise E, Connor KL. Impact of Co-Occurrence of Obesity and SARS-CoV-2 Infection during Pregnancy on Placental Pathologies and Adverse Birth Outcomes: A Systematic Review and Narrative Synthesis. Pathogens 2023; 12:pathogens12040524. [PMID: 37111410 PMCID: PMC10140965 DOI: 10.3390/pathogens12040524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Obesity is a risk factor for severe COVID-19 disease during pregnancy. We hypothesized that the co-occurrence of high maternal body mass index (BMI) and gestational SARS-CoV-2 infection are detrimental to fetoplacental development. We conducted a systematic review following PRISMA/SWiM guidelines and 13 studies were eligible. In the case series studies (n = 7), the most frequent placental lesions reported in SARS-CoV-2(+) pregnancies with high maternal BMI were chronic inflammation (71.4%, 5/7 studies), fetal vascular malperfusion (FVM) (71.4%, 5/7 studies), maternal vascular malperfusion (MVM) (85.7%, 6/7 studies) and fibrinoids (100%, 7/7 studies). In the cohort studies (n = 4), three studies reported higher rates of chronic inflammation, MVM, FVM and fibrinoids in SARS-CoV-2(+) pregnancies with high maternal BMI (72%, n = 107/149; mean BMI of 30 kg/m2) compared to SARS-CoV-2(−) pregnancies with high BMI (7.4%, n = 10/135). In the fourth cohort study, common lesions observed in placentae from SARS-CoV-2(+) pregnancies with high BMI (n = 187 pregnancies; mean BMI of 30 kg/m2) were chronic inflammation (99%, 186/187), MVM (40%, n = 74/187) and FVM (26%, n = 48/187). BMI and SARS-CoV-2 infection had no effect on birth anthropometry. SARS-CoV-2 infection during pregnancy associates with increased prevalence of placental pathologies, and high BMI in these pregnancies could further affect fetoplacental trajectories.
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Affiliation(s)
- Thaina Ferraz
- Health Sciences, Carleton University, Ottawa, ON K1S 5B6, Canada
| | | | - Israa Zareef
- Health Sciences, Carleton University, Ottawa, ON K1S 5B6, Canada
| | | | - Enrrico Bloise
- Department of Morphology, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Kristin L. Connor
- Health Sciences, Carleton University, Ottawa, ON K1S 5B6, Canada
- Correspondence: ; Tel.: +1-613-520-2600 (ext. 4202)
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12
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Brockway HM, Wilson SL, Kallapur SG, Buhimschi CS, Muglia LJ, Jones HN. Characterization of methylation profiles in spontaneous preterm birth placental villous tissue. PLoS One 2023; 18:e0279991. [PMID: 36952446 PMCID: PMC10035933 DOI: 10.1371/journal.pone.0279991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Indexed: 03/25/2023] Open
Abstract
Preterm birth is a global public health crisis which results in significant neonatal and maternal mortality. Yet little is known regarding the molecular mechanisms of idiopathic spontaneous preterm birth, and we have few diagnostic markers for adequate assessment of placental development and function. Previous studies of placental pathology and our transcriptomics studies suggest a role for placental maturity in idiopathic spontaneous preterm birth. It is known that placental DNA methylation changes over gestation. We hypothesized that if placental hypermaturity is present in our samples, we would observe a unique idiopathic spontaneous preterm birth DNA methylation profile potentially driving the gene expression differences we previously identified in our placental samples. Our results indicate the idiopathic spontaneous preterm birth DNA methylation pattern mimics the term birth methylation pattern suggesting hypermaturity. Only seven significant differentially methylated regions fitting the idiopathic spontaneous preterm birth specific (relative to the controls) profile were identified, indicating unusually high similarity in DNA methylation between idiopathic spontaneous preterm birth and term birth samples. We identified an additional 1,718 significantly methylated regions in our gestational age matched controls where the idiopathic spontaneous preterm birth DNA methylation pattern mimics the term birth methylation pattern, again indicating a striking level of similarity between the idiopathic spontaneous preterm birth and term birth samples. Pathway analysis of these regions revealed differences in genes within the WNT and Cadherin signaling pathways, both of which are essential in placental development and maturation. Taken together, these data demonstrate that the idiopathic spontaneous preterm birth samples display a hypermature methylation signature than expected given their respective gestational age which likely impacts birth timing.
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Affiliation(s)
- Heather M. Brockway
- Department of Physiology and Functional Genomics, College of Medicine at the University of Florida, Gainesville, Florida, United States of America
| | - Samantha L. Wilson
- Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Suhas G. Kallapur
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California, UCLA Mattel Children’s Hospital, Los Angeles, California, United States of America
| | - Catalin S. Buhimschi
- Department of Obstetrics and Gynecology, The University of Illinois College of Medicine, Chicago, Illinois, United States of America
| | - Louis J. Muglia
- Burroughs Wellcome Fund, Research Triangle Park, North Carolina, United States of America
| | - Helen N. Jones
- Department of Physiology and Functional Genomics, College of Medicine at the University of Florida, Gainesville, Florida, United States of America
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13
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Cardenas MC, Cheek-Norgan EH, Branda ME, Norgan AP, Schenone MH, Lemens MA, Chakraborty R, Ruano R, Enninga EAL. Fetal surgery is not associated with increased inflammatory placental pathology. Prenat Diagn 2023; 43:382-392. [PMID: 36688485 PMCID: PMC10132489 DOI: 10.1002/pd.6319] [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: 07/18/2022] [Revised: 01/10/2023] [Accepted: 01/13/2023] [Indexed: 01/24/2023]
Abstract
OBJECTIVE Fetal surgery has improved neonatal outcomes; however, it is unknown if the intervention contributes to the developmental of inflammatory pathologies in the placenta. Here, an association between fetal surgery and placental pathology was examined. METHOD This case-control study compared pregnancies with fetal surgery (n = 22), pregnancies with an indication for fetal surgery but without an intervention being done (n = 13), and gestational-age and fetus-number matched controls (n = 36). Data on maternal, infant, and placental outcomes were abstracted. Additionally, immunohistochemistry identified expression of lymphoid and myeloid cells in the placenta on a subset of cases. Comparisons were performed using Kruskal-Wallis or Pearson's chi-squared tests. RESULTS Maternal characteristics were comparable between groups. Most fetal interventions were for diaphragmatic hernia, spina bifida, or twin-to-twin transfusion syndrome. Fetuses who were operated on before birth were more likely to be born preterm (p = 0.02). There was no increase in the rate of observed placental pathologies or immune cell infiltration in fetal surgery cases compared to controls. CONCLUSION The data suggest that fetal surgery is not associated with increased inflammatory or morphologic pathology in the placenta. This observation supports the growing field of fetal surgery.
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Affiliation(s)
- Maria C. Cardenas
- Department of Pediatrics and Adolescent Medicine, Mayo Clinic, Rochester, MN
| | | | - Megan E. Branda
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Andrew P. Norgan
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | | | | | - Rana Chakraborty
- Department of Pediatrics and Adolescent Medicine, Mayo Clinic, Rochester, MN
| | - Rodrigo Ruano
- Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, MN
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Miami, Miami, FL (present address)
| | - Elizabeth Ann L. Enninga
- Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, MN
- Department of Immunology, Mayo Clinic, Rochester, MN
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14
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Cartus AR. Machine learning to study placental pathology: Risk of reification and other considerations. Paediatr Perinat Epidemiol 2023; 37:362-364. [PMID: 36792534 DOI: 10.1111/ppe.12961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 02/17/2023]
Affiliation(s)
- Abigail R Cartus
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA
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15
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Husiev VM, Khapchenkova DS, Dubyna SO, Bondarenko SV. MORPHOLOGICAL AND IMMUNOHISTOCHEMICAL SIGNS OF PLACENTAL DISORDERS OF WOMEN AFTER SYPHILITIC INFECTION. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2023; 75:2958-2964. [PMID: 36723310 DOI: 10.36740/wlek202212111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The aim: To define morphological and immunohistochemical signs of placental disorders of women after syphilitic infection. PATIENTS AND METHODS Materials and methods: The prospective study of 60 pregnant women with history of syphilitic infection (main group) and 57 pregnant patients without syphilis (control group) was conducted. The morphological and immunohistochemical study of the afterbirth was performed. RESULTS Results: In the placentas of women of the main group the following phenomena were found out: circulatory disorders in the form of hemorrhages into the intervillous space and the stroma of villi; accumulation of fibrinoid around villi with dystrophically altered stroma, compensatory-adaptive reactions resulted in hyperplasia of terminal villi and vessels in them, which provoked narrowing of the intervillous space and disruption of blood supply in it. Pathogenic immune complexes containing Ig G, M and C3 of the complement fraction were located in the central part of the placenta - 45.00% of cases, 16.67% - in the regional, 8.33% - in both parts. Immune complexes with Ig M content occurred in 38.33% of cases. The content of pathogenic immune complexes was the most concentrated in the placentas of women with latent forms and secondary recurrent syphilis - 60.00% of cases. CONCLUSION Conclusions: changes in morphohistological and immunohistochemical examination of the placenta of this group of women confirmed the detrimental effect of syphilitic infection in the anamnesis on the structure of placenta during the next pregnancies.
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16
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Akram KM, Kulkarni NS, Brook A, Wyles MD, Anumba DOC. Transcriptomic analysis of the human placenta reveals trophoblast dysfunction and augmented Wnt signalling associated with spontaneous preterm birth. Front Cell Dev Biol 2022; 10:987740. [DOI: 10.3389/fcell.2022.987740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 10/13/2022] [Indexed: 11/13/2022] Open
Abstract
Preterm birth (PTB) is the leading cause of death in under-five children. Worldwide, annually, over 15 million babies are born preterm and 1 million of them die. The triggers and mechanisms of spontaneous PTB remain largely unknown. Most current therapies are ineffective and there is a paucity of reliable predictive biomarkers. Understanding the molecular mechanisms of spontaneous PTB is crucial for developing better diagnostics and therapeutics. To address this need, we conducted RNA-seq transcriptomic analysis, qRT-PCR and ELISA on fresh placental villous tissue from 20 spontaneous preterm and 20 spontaneous term deliveries, to identify genes and signalling pathways involved in the pathogenesis of PTB. Our differential gene expression, gene ontology and pathway analysis revealed several dysregulated genes (including OCLN, OPTN, KRT7, WNT7A, RSPO4, BAMBI, NFATC4, SLC6A13, SLC6A17, SLC26A8 and KLF8) associated with altered trophoblast functions. We identified dysregulated Wnt, oxytocin and cellular senescence signalling pathways in preterm placentas, where augmented Wnt signalling could play a pivotal role in the pathogenesis of PTB due to its diverse biological functions. We also reported two novel targets (ITPR2 and MYLK2) in the oxytocin signalling pathways for further study. Through bioinformatics analysis on DEGs, we identified four key miRNAs, - miR-524-5p, miR-520d-5p, miR-15a-5p and miR-424-5p - which were significantly downregulated in preterm placentas. These miRNAs may have regulatory roles in the aberrant gene expressions that we have observed in preterm placentas. We provide fresh molecular insight into the pathogenesis of spontaneous PTB which may drive further studies to develop new predictive biomarkers and therapeutics.
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17
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Brink LT, Roberts DJ, Wright CA, Nel DG, Schubert PT, Boyd TK, Hall DR, Odendaal H. Placental pathology in spontaneous and iatrogenic preterm birth: Different entities with unique pathologic features. Placenta 2022; 126:54-63. [PMID: 35777272 PMCID: PMC10555798 DOI: 10.1016/j.placenta.2022.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 06/01/2022] [Accepted: 06/11/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Placental pathology is an important contributor to the understanding of preterm birth and reveals major differences between spontaneous preterm birth (SPTB) and iatrogenic preterm birth (IPTB). The aim of this study was to investigate these relationships. METHODS Research midwives collected placentas from 1101 women with singleton pregnancies who were enrolled in the Safe Passage Study. Trained pathology technologists prepared and processed placenta specimens for macroscopic and microscopic examination by designated pathologists. Statistical analyses were done with STATISTICA version 13. RESULTS In SPTB we found more cases of accelerated villous maturation; however, the other features of maternal vascular malperfusion (MVM) were not present. The prevalence rate of funisitis was also increased. In IPTB, multiple features of MVM - accelerated villous maturation, distal villous hypoplasia, decidual arteriopathy, increased syncytial knots, increased perivillous fibrin, and prominent extravillous trophoblast were increased, as were features of fetal vascular malperfusion (FVM) - umbilical cord vessel thrombosis, avascular villi, and fetal vascular thrombosis. Increased syncytial knots were found in 26% of preterm stillbirths and in 29% of preterm infant demises as compared to 81% of IPTB infants alive at one year. DISCUSSION SPTB and IPTB differ. The detected "abnormal" accelerated villous maturation pattern in SPTB and preterm demises, suggests an inability of the placenta to adapt and may be a trigger for SPTB. Funisitis was the only inflammatory response significant for SPTB. MVM and FVM are implicated in IPTB, but not an inflammatory process.
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Affiliation(s)
- Lucy T Brink
- Department of Obstetrics and Gynaecology, Faculty of Medicine and Health Sciences, Stellenbosch University, Francie van Zijl Drive, Tygerberg, 7505, Cape Town, South Africa
| | - Drucilla J Roberts
- Massachusetts General Hospital, Department of Pathology, 55 Fruit Street, Warren 219, Boston, MA, 02114, United States
| | - Colleen A Wright
- Lancet Laboratories, Johannesburg, South Africa; Division of Anatomical Pathology, Tygerberg Hospital, National Health Laboratory Service, Faculty of Medicine and Health Sciences, Stellenbosch University, Francie van Zijl Drive, Tygerberg, 7505, Cape Town, South Africa
| | - Daan G Nel
- Department of Statistics and Actuarial Science, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Pawel T Schubert
- Division of Anatomical Pathology, Tygerberg Hospital, National Health Laboratory Service, Faculty of Medicine and Health Sciences, Stellenbosch University, Francie van Zijl Drive, Tygerberg, 7505, Cape Town, South Africa
| | - Theonia K Boyd
- Department of Pathology, Texas Children's Hospital, Houston, TX, United States
| | - David R Hall
- Department of Obstetrics and Gynaecology, Faculty of Medicine and Health Sciences, Stellenbosch University, Francie van Zijl Drive, Tygerberg, 7505, Cape Town, South Africa
| | - Hein Odendaal
- Department of Obstetrics and Gynaecology, Faculty of Medicine and Health Sciences, Stellenbosch University, Francie van Zijl Drive, Tygerberg, 7505, Cape Town, South Africa.
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18
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Schabel MC, Roberts VHJ, Gibbins KJ, Rincon M, Gaffney JE, Streblow AD, Wright AM, Lo JO, Park B, Kroenke CD, Szczotka K, Blue NR, Page JM, Harvey K, Varner MW, Silver RM, Frias AE. Quantitative longitudinal T2* mapping for assessing placental function and association with adverse pregnancy outcomes across gestation. PLoS One 2022; 17:e0270360. [PMID: 35853003 PMCID: PMC9295947 DOI: 10.1371/journal.pone.0270360] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 06/09/2022] [Indexed: 11/21/2022] Open
Abstract
Existing methods for evaluating in vivo placental function fail to reliably detect pregnancies at-risk for adverse outcomes prior to maternal and/or fetal morbidity. Here we report the results of a prospective dual-site longitudinal clinical study of quantitative placental T2* as measured by blood oxygen-level dependent magnetic resonance imaging (BOLD-MRI). The objectives of this study were: 1) to quantify placental T2* at multiple time points across gestation, and its consistency across sites, and 2) to investigate the association between placental T2* and adverse outcomes. 797 successful imaging studies, at up to three time points between 11 and 38 weeks of gestation, were completed in 316 pregnancies. Outcomes were stratified into three groups: (UN) uncomplicated/normal pregnancy, (PA) primary adverse pregnancy, which included hypertensive disorders of pregnancy, birthweight <5th percentile, and/or stillbirth or fetal death, and (SA) secondary abnormal pregnancy, which included abnormal prenatal conditions not included in the PA group such as spontaneous preterm birth or fetal anomalies. Of the 316 pregnancies, 198 (62.6%) were UN, 70 (22.2%) PA, and 48 (15.2%) SA outcomes. We found that the evolution of placental T2* across gestation was well described by a sigmoid model, with T2* decreasing continuously from a high plateau level early in gestation, through an inflection point around 30 weeks, and finally approaching a second, lower plateau in late gestation. Model regression revealed significantly lower T2* in the PA group than in UN pregnancies starting at 15 weeks and continuing through 33 weeks. T2* percentiles were computed for individual scans relative to UN group regression, and z-scores and receiver operating characteristic (ROC) curves calculated for association of T2* with pregnancy outcome. Overall, differences between UN and PA groups were statistically significant across gestation, with large effect sizes in mid- and late- pregnancy. The area under the curve (AUC) for placental T2* percentile and PA pregnancy outcome was 0.71, with the strongest predictive power (AUC of 0.76) at the mid-gestation time period (20–30 weeks). Our data demonstrate that placental T2* measurements are strongly associated with pregnancy outcomes often attributed to placental insufficiency. Trial registration: ClinicalTrials.gov: NCT02749851.
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Affiliation(s)
- Matthias C. Schabel
- Advanced Imaging Research Center, Oregon Health and Science University (OHSU), Portland, Oregon, United States of America
| | - Victoria H. J. Roberts
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center (ONPRC), OHSU, Portland, Oregon, United States of America
- * E-mail:
| | - Karen J. Gibbins
- Department of Obstetrics and Gynecology, OHSU, Portland, Oregon, United States of America
| | - Monica Rincon
- Department of Obstetrics and Gynecology, OHSU, Portland, Oregon, United States of America
| | - Jessica E. Gaffney
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center (ONPRC), OHSU, Portland, Oregon, United States of America
| | - Aaron D. Streblow
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center (ONPRC), OHSU, Portland, Oregon, United States of America
| | - Adam M. Wright
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center (ONPRC), OHSU, Portland, Oregon, United States of America
| | - Jamie O. Lo
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center (ONPRC), OHSU, Portland, Oregon, United States of America
- Department of Obstetrics and Gynecology, OHSU, Portland, Oregon, United States of America
| | - Byung Park
- Biostatistics Shared Resource, Knight Cancer Institute, OHSU, Portland, Oregon, United States of America
| | - Christopher D. Kroenke
- Advanced Imaging Research Center, Oregon Health and Science University (OHSU), Portland, Oregon, United States of America
- Division of Neuroscience, ONPRC, OHSU, Portland, Oregon, United States of America
| | - Kathryn Szczotka
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, United States of America
| | - Nathan R. Blue
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, United States of America
| | - Jessica M. Page
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, United States of America
| | - Kathy Harvey
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, United States of America
| | - Michael W. Varner
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, United States of America
| | - Robert M. Silver
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, United States of America
| | - Antonio E. Frias
- Department of Obstetrics and Gynecology, OHSU, Portland, Oregon, United States of America
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Chan F, Shen S, Huang P, He J, Wei X, Lu J, Zhang L, Xia X, Xia H, Cheng KK, Thangaratinam S, Mol BW, Qiu X. Blood pressure trajectories during pregnancy and preterm delivery: A prospective cohort study in China. J Clin Hypertens (Greenwich) 2022; 24:770-778. [PMID: 35651280 PMCID: PMC9180333 DOI: 10.1111/jch.14494] [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: 01/03/2022] [Revised: 03/24/2022] [Accepted: 04/18/2022] [Indexed: 11/26/2022]
Abstract
Women's blood pressure (BP) changes throughout pregnancy. The effect of BP trajectories on preterm delivery is not clear. The authors aim to evaluate the association between maternal BP trajectories during pregnancy and preterm delivery. The authors studied pregnant women included in the Born in Guangzhou Cohort Study in China between February 2012 and June 2016. Maternal BP was measured at antenatal visits between 13 and 40 gestational weeks, and gestational age of delivery data was collected. The authors used linear mixed models to capture the BP trajectories of women with term, and spontaneous and iatrogenic preterm delivery. BP trajectories of women with various gestational lengths (34, 35, 36, 37, 38, 39, 40 weeks) were compared. Of the 17 426 women included in the analysis, 618 (3.55%) had spontaneous preterm delivery; 158 (.91%) had iatrogenic preterm delivery; and 16 650 (95.55%) women delivered at term. The BP trajectories were all J‐shaped curves for different delivery types. Women with iatrogenic preterm delivery had the highest mean BP from 13 weeks till delivery, followed by those with spontaneous preterm delivery and term delivery (p < .001). Trajectory analysis stratified by maternal parity showed similar results for nulliparous and multiparous women. Excluding women with pre‐eclampsia and gestational hypertension (GH) significantly attenuated the aforementioned association. Also, women with shorter gestational length tend to have higher BP trajectories during pregnancy. In conclusion, Women with spontaneous preterm delivery have a higher BP from 13 weeks till delivery than women with term delivery, while women with iatrogenic preterm delivery have the highest BP.
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Affiliation(s)
- Fanfan Chan
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Provincial Key Clinical Specialty of Woman and Child Health, Guangdong, China
| | - Songying Shen
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Provincial Key Clinical Specialty of Woman and Child Health, Guangdong, China
| | - Peiyuan Huang
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Provincial Key Clinical Specialty of Woman and Child Health, Guangdong, China
| | - Jianrong He
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Provincial Key Clinical Specialty of Woman and Child Health, Guangdong, China
| | - Xueling Wei
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Provincial Key Clinical Specialty of Woman and Child Health, Guangdong, China
| | - Jinhua Lu
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Provincial Key Clinical Specialty of Woman and Child Health, Guangdong, China
| | - Lifang Zhang
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Provincial Key Clinical Specialty of Woman and Child Health, Guangdong, China
| | - Xiaoyan Xia
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Provincial Key Clinical Specialty of Woman and Child Health, Guangdong, China
| | - Huimin Xia
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Provincial Clinical Research Center for Child Health, Guangdong, China
| | - Kar Keung Cheng
- Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Shakila Thangaratinam
- WHO Collaborating Centre for Women's Health, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Ben Willem Mol
- Department of Obstetrics and Gynecology, School of Medicine, Monash University, Melbourne, Australia
| | - Xiu Qiu
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Provincial Key Clinical Specialty of Woman and Child Health, Guangdong, China.,Provincial Clinical Research Center for Child Health, Guangdong, China
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20
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The effect of endometriosis on placental histopathology and perinatal outcome in singleton live births resulting from in vitro fertilization. Reprod Biomed Online 2022; 45:754-761. [DOI: 10.1016/j.rbmo.2022.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 03/28/2022] [Accepted: 04/26/2022] [Indexed: 11/22/2022]
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21
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Budal EB, Ebbing C, Kessler J, Bains S, Haugen OH, Aukland SM, Eide GE, Halvorsen T, Bentsen MHL, Collett K. Placental histology predicted adverse outcomes in extremely premature neonates in Norway-population-based study. Acta Paediatr 2022; 111:546-553. [PMID: 34825402 DOI: 10.1111/apa.16198] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 01/02/2023]
Abstract
AIM We evaluated the role of placental pathology in predicting adverse outcomes for neonates born extremely preterm (EPT) before 28 weeks of gestation. METHODS This was a prospective observational study of 123 extremely preterm singletons born in a hospital in western Norway, and the placentas were classified according to the Amsterdam criteria. The associations between histologic chorioamnionitis (HCA), by the presence or the absence of a foetal inflammatory response (FIR+ or FIR-), maternal vascular malperfusion (MVM) as a whole and adverse neonatal outcomes were evaluated by logistic regression analyses. Adverse outcomes were defined as perinatal death, necrotising enterocolitis (NEC), bronchopulmonary dysplasia (BPD), brain pathology by magnetic resonance imaging at term-equivalent age, retinopathy of prematurity and early-onset neonatal sepsis. The results are reported as odds ratios (ORs) with 95% confidence intervals (CIs). RESULTS HCA was associated with NEC (OR 12.2, 95% CI 1.1 to 137.1). HCA/FIR+ was associated with BPD (OR 14.9, 95% CI 1.8-122.3) and brain pathology (OR 9.8, 95% CI 1.4-71.6), but HCA/FIR- was not. The only neonatal outcome that MVM was associated with was low birthweight. CONCLUSION Placental histology provided important information when assessing the risk of adverse neonatal outcomes following EPT birth.
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Affiliation(s)
- Elisabeth B. Budal
- Department of Clinical Medicine University of Bergen Bergen Norway
- Department of Pathology Haukeland University Hospital Bergen Norway
| | - Cathrine Ebbing
- Department of Clinical Medicine University of Bergen Bergen Norway
- Department of Obstetrics and Gynaecology Haukeland University Hospital Bergen Norway
| | - Jørg Kessler
- Department of Clinical Medicine University of Bergen Bergen Norway
- Department of Obstetrics and Gynaecology Haukeland University Hospital Bergen Norway
| | - Sukhjeet Bains
- Norwegian Research Centre for Women’s Health Oslo University Hospital Oslo Norway
| | - Olav H. Haugen
- Department of Ophthalmology Haukeland University Hospital Bergen Norway
| | - Stein M. Aukland
- Department of Clinical Medicine University of Bergen Bergen Norway
- Department of Radiology Haukeland University Hospital Bergen Norway
| | - Geir Egil Eide
- Centre for Clinical Research Haukeland University Hospital Bergen Norway
- Department of Global Public Health and Primary Care University of Bergen Bergen Norway
| | - Thomas Halvorsen
- Department of Clinical Medicine University of Bergen Bergen Norway
- Department of Paediatrics Haukeland University Hospital Bergen Norway
| | - Mariann H. L. Bentsen
- Department of Clinical Medicine University of Bergen Bergen Norway
- Department of Paediatrics Haukeland University Hospital Bergen Norway
| | - Karin Collett
- Department of Clinical Medicine University of Bergen Bergen Norway
- Department of Pathology Haukeland University Hospital Bergen Norway
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22
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Landman AJEMC, de Boer MA, Visser L, Nijman TAJ, Hemels MAC, Naaktgeboren CN, van der Weide MC, Mol BW, van Laar JOEH, Papatsonis DNM, Bekker MN, van Drongelen J, van Pampus MG, Sueters M, van der Ham DP, Sikkema JM, Zwart JJ, Huisjes AJM, van Huizen ME, Kleiverda G, Boon J, Franssen MTM, Hermes W, Visser H, de Groot CJM, Oudijk MA. Evaluation of low-dose aspirin in the prevention of recurrent spontaneous preterm labour (the APRIL study): A multicentre, randomised, double-blinded, placebo-controlled trial. PLoS Med 2022; 19:e1003892. [PMID: 35104279 PMCID: PMC8806064 DOI: 10.1371/journal.pmed.1003892] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 12/14/2021] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Preterm birth is the leading cause of neonatal morbidity and mortality. The recurrence rate of spontaneous preterm birth is high, and additional preventive measures are required. Our objective was to assess the effectiveness of low-dose aspirin compared to placebo in the prevention of preterm birth in women with a previous spontaneous preterm birth. METHODS AND FINDINGS We performed a parallel multicentre, randomised, double-blinded, placebo-controlled trial (the APRIL study). The study was performed in 8 tertiary and 26 secondary care hospitals in the Netherlands. We included women with a singleton pregnancy and a history of spontaneous preterm birth of a singleton between 22 and 37 weeks. Participants were randomly assigned to aspirin 80 mg daily or placebo initiated between 8 and 16 weeks of gestation and continued until 36 weeks or delivery. Randomisation was computer generated, with allocation concealment by using sequentially numbered medication containers. Participants, their healthcare providers, and researchers were blinded for treatment allocation. The primary outcome was preterm birth <37 weeks of gestation. Secondary outcomes included a composite of poor neonatal outcome (bronchopulmonary dysplasia, periventricular leukomalacia > grade 1, intraventricular hemorrhage > grade 2, necrotising enterocolitis > stage 1, retinopathy of prematurity, culture proven sepsis, or perinatal death). Analyses were performed by intention to treat. From May 31, 2016 to June 13, 2019, 406 women were randomised to aspirin (n = 204) or placebo (n = 202). A total of 387 women (81.1% of white ethnic origin, mean age 32.5 ± SD 3.8) were included in the final analysis: 194 women were allocated to aspirin and 193 to placebo. Preterm birth <37 weeks occurred in 41 (21.2%) women in the aspirin group and 49 (25.4%) in the placebo group (relative risk (RR) 0.83, 95% confidence interval (CI) 0.58 to 1.20, p = 0.32). In women with ≥80% medication adherence, preterm birth occurred in 24 (19.2%) versus 30 (24.8%) women (RR 0.77, 95% CI 0.48 to 1.25, p = 0.29). The rate of the composite of poor neonatal outcome was 4.6% (n = 9) versus 2.6% (n = 5) (RR 1.79, 95% CI 0.61 to 5.25, p = 0.29). Among all randomised women, serious adverse events occurred in 11 out of 204 (5.4%) women allocated to aspirin and 11 out of 202 (5.4%) women allocated to placebo. None of these serious adverse events was considered to be associated with treatment allocation. The main study limitation is the underpowered sample size due to the lower than expected preterm birth rates. CONCLUSIONS In this study, we observed that low-dose aspirin did not significantly reduce the preterm birth rate in women with a previous spontaneous preterm birth. However, a modest reduction of preterm birth with aspirin cannot be ruled out. Further research is required to determine a possible beneficial effect of low-dose aspirin for women with a previous spontaneous preterm birth. TRIAL REGISTRATION Dutch Trial Register (NL5553, NTR5675) https://www.trialregister.nl/trial/5553.
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Affiliation(s)
- Anadeijda J. E. M. C. Landman
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Marjon A. de Boer
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Laura Visser
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Tobias A. J. Nijman
- Department of Obstetrics and Gynaecology, Haaglanden Medical Centre, Den Haag, the Netherlands
| | | | - Christiana N. Naaktgeboren
- Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Marijke C. van der Weide
- Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Ben W. Mol
- Department of Obstetrics and Gynaecology, School of Clinical Sciences at Monash Health, Monash University, Melbourne, Victoria, Australia
- Aberdeen Centre for Women’s Health Research, University of Aberdeen Aberdeen, United Kingdom
| | | | | | - Mireille N. Bekker
- Department of Obstetrics and Gynaecology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Joris van Drongelen
- Department of Obstetrics and Gynaecology, Radboud University Medical Center, Nijmegen, the Netherlands
| | | | - Marieke Sueters
- Department of Obstetrics and Gynaecology, Leiden University Medical Centre, Leiden, the Netherlands
| | - David P. van der Ham
- Department of Obstetrics and Gynaecology, Martini Hospital, Groningen, the Netherlands
| | - J. Marko Sikkema
- Department of Obstetrics and Gynaecology, Hospital Group Twente Almelo, Almelo, the Netherlands
| | - Joost J. Zwart
- Department of Obstetrics and Gynaecology, Deventer Hospital, Deventer, the Netherlands
| | - Anjoke J. M. Huisjes
- Department of Obstetrics and Gynaecology, Gelre Hospitals Apeldoorn, Apeldoorn, the Netherlands
| | | | - Gunilla Kleiverda
- Department of Obstetrics and Gynaecology, Flevo Hospital Almere, Almere, the Netherlands
| | - Janine Boon
- Department of Obstetrics and Gynaecology, Diakonessenhuis, Utrecht, the Netherlands
| | - Maureen T. M. Franssen
- Department of Obstetrics and Gynaecology, University Medical Centre Groningen, Groningen, the Netherlands
| | - Wietske Hermes
- Department of Obstetrics and Gynaecology, Haaglanden Medical Centre, Den Haag, the Netherlands
| | - Harry Visser
- Department of Obstetrics and Gynaecology, Tergooi Hospitals, Hilversum, the Netherlands
| | - Christianne J. M. de Groot
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Martijn A. Oudijk
- Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
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Dubossarska YO, Puziy YO. HISTOLOGICAL FEATURES OF THE INFECTIOUS AND INFLAMMATORY STATE OF THE PLACENTA IN WOMEN WITH PRETERM PREMATURE RUPTURE OF MEMBRANES DEPENDING ON THE DURATION OF THE INTERVAL BETWEEN MEMBRANE RAPTURE AND DELIVERY AND OTHER FACTORS. BULLETIN OF PROBLEMS BIOLOGY AND MEDICINE 2022. [DOI: 10.29254/2077-4214-2022-3-166-168-173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Flatley C, Sole-Navais P, Vaudel M, Helgeland Ø, Modzelewska D, Johansson S, Jacobsson B, Njølstad P. Placental weight centiles adjusted for age, parity and fetal sex. Placenta 2021; 117:87-94. [PMID: 34773745 DOI: 10.1016/j.placenta.2021.10.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/29/2021] [Accepted: 10/20/2021] [Indexed: 11/27/2022]
Abstract
INTRODUCTION The weight of the placenta can be indicative of efficacy in nutrient and oxygen supply. Furthermore, it has been suggested that a measure of the placenta's ability to adequately supply nutrients to the fetus can be found in the relationship between birth weight and placental weight expressed as a ratio. Our aim was to develop age adjusted placenta weight and birth weight to placenta weight ratio reference curves that are stratified by maternal parity and fetal sex. METHODS We included singleton, non-anomalous births with a gestational age inclusive of 28 + 0 weeks to 42 + 6 weeks. Excluded were pregnancies of multiplicity, fetuses with congenital abnormalities, stillbirths and pregnancies that had placental complications (ie placenta previa or abruption). Generalised additive model for location, shape and scale (GAMLSS) was used to fit reference curves. RESULTS We stratified 97,882 pregnancies by maternal nulliparity status and fetal sex. Extensive assessment model goodness-of-fit showed appropriate modeling and accurate fit to the four parameters of distribution. Our results show accurate model fit of the reference curves to the data. We demonstrated that the influence that parity has on the placenta weight is far greater than that exerted by fetal sex, and that the difference is dependent on gestational age. DISCUSSION This is the largest presentation of age and parity adjusted placenta weight and feto-placental weight ratio reference ranges to date. The difference observed between nulliparous and multiparous pregnancies could be explained by biological memory and the remnants of maternal endo-myometrial vascularity after the first pregnancy.
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Affiliation(s)
- Christopher Flatley
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Pol Sole-Navais
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Marc Vaudel
- Center of Diabetes Research, Department of Clinical Science, University of Bergen, Children and Youth Hospital, Bergen, Norway
| | - Øyvind Helgeland
- Center of Diabetes Research, Department of Clinical Science, University of Bergen, Children and Youth Hospital, Bergen, Norway; Division of Health Data and Digitalization, Department of Genetics and Bioinformatics, Norwegian Institute of Public Health, Oslo, Norway
| | - Dominika Modzelewska
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Stefan Johansson
- Center of Diabetes Research, Department of Clinical Science, University of Bergen, Children and Youth Hospital, Bergen, Norway; Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway
| | - Bo Jacobsson
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Division of Health Data and Digitalization, Department of Genetics and Bioinformatics, Norwegian Institute of Public Health, Oslo, Norway; Region Västra Götaland, Sahlgrenska University Hospital, Department of Obstetrics and Gynecology, Gothenburg, Sweden
| | - Pål Njølstad
- Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway; Department of Pediatrics and Adolescents, Haukeland University Hospital, Bergen, Norway
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25
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Axelson K, Osto M, Rehman R, Fakih M, Jones T. Longest Survival of Expectantly Managed Twin Gestation Complicated by Previable Preterm Premature Rupture of Membranes at 13 Weeks' Gestation. Cureus 2021; 13:e16464. [PMID: 34422493 PMCID: PMC8369981 DOI: 10.7759/cureus.16464] [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] [Accepted: 07/18/2021] [Indexed: 11/05/2022] Open
Abstract
Previable preterm premature rupture of membranes (PV-PPROM) is defined as rupture of membranes prior to 24 weeks and is a rare phenomenon with an estimated prevalence of 0.5% of all pregnancies. Given that this phenomenon is even more rare in patients with dichorionic diamniotic (DCDA) twin pregnancies, there is no clear consensus in the literature on outcomes and management of DCDA PV-PPROM due to the scarcity of reports. We report a case of a rare successful prolongation of first trimester DCDA PV-PPROM pregnancy with rupture of the amniotic sac of one twin with survival of both twins without major complications. A 20-year-old female gravida 1 para 0 at about 13 weeks and three days presented with vaginal watery discharge mixed with vaginal bleeding. Abdominal ultrasound revealed a live twin dichorionic diamniotic (DCDA) spontaneous intrauterine gestation and a significantly low amniotic fluid volume involving fetus A. At 23 weeks gestational age, she experienced increased leaking of clear fluid, and she was admitted to the hospital for continuous monitoring with daily non-stress tests (NST), and ultrasounds every four weeks, and received antibiotics, betamethasone, and magnesium. Preterm labor occurred at 30w1d, and a primary low transverse cesarean section was performed on the 114th day after PPROM. Though, twin A required prolonged hospitalization both twins recovered and progressed well without complications. To the best of our knowledge, this is the longest case of successful expectant management of both twins with PV-PPROM yet reported.
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Affiliation(s)
- Kaci Axelson
- Department of Obstetrics and Gynecology, Beaumont Health, Dearborn, USA
| | - Muhammad Osto
- Department of Dermatology, Wayne State University School of Medicine, Detroit, USA
| | - Rafey Rehman
- Department of Obstetrics and Gynecology, Beaumont Health, Royal Oak, USA
| | - Mona Fakih
- Department of Obstetrics and Gynecology, Beaumont Health, Dearborn, USA
| | - Theodore Jones
- Department of Obstetrics and Gynecology, Beaumont Health, Dearborn, USA
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26
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Pregnancy and birth outcomes of multiple gestations with PPROM occurred within 24 h after fetal reduction: A case series. Taiwan J Obstet Gynecol 2021; 59:895-898. [PMID: 33218408 DOI: 10.1016/j.tjog.2020.09.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2020] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE The study aims to analyze the pregnancy outcomes of multiple gestations with preterm premature rupture of membranes (PPROM) that occurred within 24 h after fetal reduction with potassium chloride (KCL). MATERIALS AND METHODS We identified and evaluated the outcomes of 16 retrospectively recorded multigestational pregnancies that met the inclusion criteria between 2006 and 2016, from the Obstetrics Department of Shandong Provincial Hospital. A total of 16 patients carrying twins or higher order multiple gestations experienced PPROM within 24 h after fetal reduction, and all of them received expectant management after understanding the relevant risks. The maternal and neonatal records were retrospectively collected and reviewed. Every surviving child was followed up to at least 2 years old. RESULT Of the 16 cases, 12 cases (75%) ended in successful pregnancy, resulting in the delivery of at least 1 child surviving from a multiple gestational pregnancy. All cases of successful pregnancies were either term (≥37 weeks) or near-term (36+5 weeks) at delivery. And of those 20 infants delivered, only 3 were low birth weight infants (<2500g) (15%), None of the 16 women had fever, or other clinical symptoms and signs of chorioamnionitis during hospital stay. Postnatal follow-up of the surviving babies showed no obvious sequelae thus far. No newborn baby had neonatal complications, or needed to be transferred to neonatal intensive care unit. CONCLUSION Overall, our data demonstrate that dichorionic diamniotic (DCDA) twins or higher-order gestations who experienced PPROM of the reduced fetus within 24 h after selective reduction with KCL had relatively good outcomes with expectant management alone.
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Williams AD, Kanner J, Grantz KL, Ouidir M, Sheehy S, Sherman S, Robledo C, Mendola P. Air pollution exposure and risk of adverse obstetric and neonatal outcomes among women with type 1 diabetes. ENVIRONMENTAL RESEARCH 2021; 197:111152. [PMID: 33844969 PMCID: PMC8190832 DOI: 10.1016/j.envres.2021.111152] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/13/2021] [Accepted: 04/07/2021] [Indexed: 05/30/2023]
Abstract
AIMS/HYPOTHESIS Women with type 1 diabetes have increased risk for poor obstetric outcomes. Prenatal air pollution exposure is also associated with adverse outcomes for women and infants. We examined whether women with type 1 diabetes are more vulnerable than other women to pollution-associated risks during pregnancy. METHODS In singleton deliveries from the Consortium on Safe Labor (2002-2008), obstetric and neonatal outcomes were compared for women with type 1 diabetes (n = 507) and women without autoimmune disease (n = 204,384). Preconception, trimester, and whole pregnancy average air pollutant exposure (ozone (O3), carbon monoxide (CO), particulate matter >10 μm (PM10), PM > 2.5 μm (PM2.5), sulfur dioxide (SO2), nitrogen oxides (NOx)) were estimated using modified Community Multiscale Air Quality models. Poisson regression models with diabetes*pollutant interaction terms estimated relative risks and 95% confidence intervals for adverse outcomes, adjusted for maternal characteristics and geographic region. RESULTS For whole pregnancy exposure to SO2, women with type 1 diabetes had 15% increased risk (RR:1.15 95%CI:1.01,1.31) and women without autoimmune disease had 5% increased risk (RR:1.05 95%CI:1.05,1.06) for small for gestational age birth (pinteraction = 0.09). Additionally, whole pregnancy O3 exposure was associated with 10% increased risk (RR:1.10 95%CI:1.02,1.17) among women with type 1 diabetes and 2% increased risk (RR:1.02 95%CI:1.00,1.04) among women without autoimmune disease for perinatal mortality (pinteraction = 0.08). Similar patterns were observed between PM2.5 exposure and spontaneous preterm birth. CONCLUSIONS Pregnant women with type 1 diabetes may be at greater risk for adverse outcomes when exposed to air pollution than women without autoimmune disease.
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Affiliation(s)
- Andrew D Williams
- Public Health Program, Department of Population Health, School of Medicine and Health Sciences, University of North Dakota, Room E162, 1301 North Columbia Road Stop 9037, Grand Forks, ND, 58202, USA.
| | - Jenna Kanner
- School of Medicine, University of Maryland, Baltimore, 655 W. Baltimore Stree, Baltimore, MD, 21201, USA
| | - Katherine L Grantz
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6710B Rockledge Drive, Bethesda, MD, 20892, USA
| | - Marion Ouidir
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6710B Rockledge Drive, Bethesda, MD, 20892, USA
| | - Shanshan Sheehy
- Slone Epidemiology Center, Boston University School of Medicine, 72 E Concord Street, Boston, MA, 02118, USA
| | - Seth Sherman
- The Emmes Company, 401 North Washington Street #700, Rockville, MD, 20850, USA
| | - Candace Robledo
- Department of Population Health and Biostatistics, University of Texas Rio Grande Valley School of Medicine, 2102 Treasure Hill Blvd, Harlingen, TX, 78550, USA
| | - Pauline Mendola
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6710B Rockledge Drive, Bethesda, MD, 20892, USA; Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, 401 Kimball Tower, Buffalo, NY, 14214, USA
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Jaiman S, Romero R, Pacora P, Erez O, Jung E, Tarca AL, Bhatti G, Yeo L, Kim YM, Kim CJ, Kim JS, Qureshi F, Jacques SM, Gomez-Lopez N, Hsu CD. Disorders of placental villous maturation are present in one-third of cases with spontaneous preterm labor. J Perinat Med 2021; 49:412-430. [PMID: 33554577 PMCID: PMC8324068 DOI: 10.1515/jpm-2020-0138] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 11/09/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVES Spontaneous preterm labor is an obstetrical syndrome accounting for approximately 65-70% of preterm births, the latter being the most frequent cause of neonatal death and the second most frequent cause of death in children less than five years of age worldwide. The purpose of this study was to determine and compare to uncomplicated pregnancies (1) the frequency of placental disorders of villous maturation in spontaneous preterm labor; (2) the frequency of other placental morphologic characteristics associated with the preterm labor syndrome; and (3) the distribution of these lesions according to gestational age at delivery and their severity. METHODS A case-control study of singleton pregnant women was conducted that included (1) uncomplicated pregnancies (controls, n=944) and (2) pregnancies with spontaneous preterm labor (cases, n=438). All placentas underwent histopathologic examination. Patients with chronic maternal diseases (e.g., chronic hypertension, diabetes mellitus, renal disease, thyroid disease, asthma, autoimmune disease, and coagulopathies), fetal malformations, chromosomal abnormalities, multifetal gestation, preeclampsia, eclampsia, preterm prelabor rupture of the fetal membranes, gestational hypertension, gestational diabetes mellitus, and HELLP (hemolysis, elevated liver enzymes and low platelet count) syndrome were excluded from the study. RESULTS Compared to the controls, the most prevalent placental lesions among the cases were the disorders of villous maturation (31.8% [106/333] including delayed villous maturation 18.6% [62/333] vs. 1.4% [6/442], q<0.0001, prevalence ratio 13.7; and accelerated villous maturation 13.2% [44/333] vs. 0% [0/442], q<0.001). Other lesions in decreasing order of prevalence included hypercapillarized villi (15.6% [68/435] vs. 3.5% [33/938], q<0.001, prevalence ratio 4.4); nucleated red blood cells (1.1% [5/437] vs. 0% [0/938], q<0.01); chronic inflammatory lesions (47.9% [210/438] vs. 29.9% [282/944], q<0.0001, prevalence ratio 1.6); fetal inflammatory response (30.1% [132/438] vs. 23.2% [219/944], q<0.05, prevalence ratio 1.3); maternal inflammatory response (45.5% [195/438] vs. 36.1% [341/944], q<0.01, prevalence ratio 1.2); and maternal vascular malperfusion (44.5% [195/438] vs. 35.7% [337/944], q<0.01, prevalence ratio 1.2). Accelerated villous maturation did not show gestational age-dependent association with any other placental lesion while delayed villous maturation showed a gestational age-dependent association with acute placental inflammation (q-value=0.005). CONCLUSIONS Disorders of villous maturation are present in nearly one-third of the cases of spontaneous preterm labor.
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Affiliation(s)
- Sunil Jaiman
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Pathology, Hutzel Women's Hospital, Wayne State University School of Medicine, Detroit, MI, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USA
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
- Detroit Medical Center, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Florida International University, Miami, Florida, USA
| | - Percy Pacora
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Offer Erez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Soroka University Medical Center, School of Medicine, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Eunjung Jung
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Adi L. Tarca
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
- Department of Computer Science, Wayne State University College of Engineering, Detroit, Michigan, USA
| | - Gaurav Bhatti
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Lami Yeo
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Yeon Mee Kim
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Pathology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - Chong Jai Kim
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Jung-Sun Kim
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Pathology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Faisal Qureshi
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Pathology, Hutzel Women's Hospital, Wayne State University School of Medicine, Detroit, MI, USA
- Department of Pathology, Harper University Hospital, Detroit, Michigan, USA
| | - Suzanne M. Jacques
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Pathology, Hutzel Women's Hospital, Wayne State University School of Medicine, Detroit, MI, USA
- Department of Pathology, Harper University Hospital, Detroit, Michigan, USA
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Chaur-Dong Hsu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan, USA
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Hatano Y, Tamada M, Shiga T, Niwa A, Kanayama T, Noguchi K, Morishige KI, Tomita H, Hara A. Clinically relevant umbilical cord inflammation identified based on CD15-associated vasculitis patterning. Placenta 2021; 108:39-46. [PMID: 33813362 DOI: 10.1016/j.placenta.2021.03.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/22/2021] [Accepted: 03/14/2021] [Indexed: 01/12/2023]
Abstract
INTRODUCTION Acute funisitis, a granulocyte-related inflammation of the umbilical cord, is associated with chorioamnionitis and perinatal adverse events. However, there is no efficient procedure for detecting clinically relevant umbilical cord inflammation. The objective of this study was to identify such inflammation, based on immunohistochemical assessment of umbilical cord vasculitis patterns. METHODS Accordingly, 261 cases were retrieved from a single medical institute. Using the well-established granulocyte marker CD15, we developed a five-tier umbilical cord inflammation-scoring system. Additionally, previous morphological assessments from pathological reports were compared to the immunohistochemical findings. RESULTS Analysis of results based on our new scoring system revealed that severe umbilical phlebitis (score 3) was significantly associated with maternal inflammatory response and that severe umbilical arteriophlebitis (score 4) was correlated with low umbilical arterial blood pH, a feature linked to fetal mortality and morbidity. These results corresponded with and were validated by the morphology-based assessments. Additionally, immunohistochemical analysis revealed the clinical and pathological relevance of vitelline vasculitis, a recently proposed condition. We found that analyzing three umbilical cord sections enabled superior detection of severe umbilical vasculitis than analyzing two sections. However, whether these sections were sampled from multiple distant sites or a single localized site did not significantly affect the detection of clinically relevant inflammation. DISCUSSION CD15 immunohistochemistry is a potent tool for observing the patterns of clinically relevant umbilical vasculitis, especially in cases that were indeterminate according to morphology alone. Sampling three umbilical cord sections was an efficient procedure for addressing the spatial heterogeneity of umbilical cord inflammation. CD15 immunohistochemistry is a potent tool for observing the patterns of clinically relevant umbilical vasculitis, especially in cases that were indeterminate according to morphology alone. Sampling three umbilical cord sections was an efficient procedure for addressing the spatial heterogeneity of umbilical cord inflammation.
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Affiliation(s)
- Yuichiro Hatano
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan.
| | - Maho Tamada
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Tomomi Shiga
- Department of Obstetrics and Gynecology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Ayumi Niwa
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Tomohiro Kanayama
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Kei Noguchi
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Ken-Ichirou Morishige
- Department of Obstetrics and Gynecology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Hiroyuki Tomita
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Akira Hara
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
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Freedman AA, Keenan-Devlin LS, Borders A, Miller GE, Ernst LM. Formulating a Meaningful and Comprehensive Placental Phenotypic Classification. Pediatr Dev Pathol 2021; 24:337-350. [PMID: 33872108 PMCID: PMC8277726 DOI: 10.1177/10935266211008444] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION While many placental lesions have been identified and defined, the significance of multiple overlapping lesions has not been addressed. The purpose of our analysis was to evaluate overlapping patterns of placental pathology and determine meaningful phenotypes associated with adverse birth outcomes. METHODS Placental pathology reports were obtained from a single hospital between 2009 and 2018. Placental lesions were grouped into four major categories: acute inflammation (AI), chronic inflammation (CI), maternal vascular malperfusion (MVM), and fetal vascular malperfusion (FVM). Within each category, lesions were classified as not present, low grade or high grade. Combinations of pathologies were evaluated in relation to preterm birth (<37 weeks) and small for gestational age (SGA) infant (birthweight <10th percentile). RESULTS During the study period, 19,027 placentas were reviewed by pathologists. Results from interaction models indicate that MVM and MVM in combination with CI and/or FVM are associated with the greatest odds of SGA infant and PTB. When incorporating grade, we identified 21 phenotype groups, each with characteristic associations with the SGA infant and patterns of PTB. DISCUSSION We have developed a comprehensive and meaningful placental phenotype that incorporates severity and multiplicity of placental lesions. We have also developed a web application to facilitate phenotype determination (https://placentaexpression.shinyapps.io/phenotype).
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Affiliation(s)
- Alexa A Freedman
- Institute for Policy Research, Northwestern University, Evanston, Illinois,Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, Illinois
| | - Lauren S Keenan-Devlin
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, University of Chicago Pritzker School of Medicine, Evanston, Illinois
| | - Ann Borders
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, University of Chicago Pritzker School of Medicine, Evanston, Illinois,Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois,Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Gregory E Miller
- Institute for Policy Research, Northwestern University, Evanston, Illinois,Department of Psychology, Northwestern University, Evanston, Illinois
| | - Linda M Ernst
- Department of Pathology and Laboratory Medicine, NorthShore University HealthSystem, University of Chicago Pritzker School of Medicine, Evanston, Illinois
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Placental Histopathology and Pregnancy Outcomes in "Early" vs. "Late" Placental Abruption. Reprod Sci 2020; 28:351-360. [PMID: 32809128 DOI: 10.1007/s43032-020-00287-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 08/02/2020] [Indexed: 10/23/2022]
Abstract
Placenta-associated pregnancy complications (fetal growth restriction and preeclampsia) are traditionally classified as "early" and "late" due to their different pathophysiology, histopathology, and pregnancy outcomes. As placental abruption (PA) represents another placenta-associated complication, we aimed to study if this categorization can be applied to PA as well. Pregnancy and placental reports of all pregnancies complicated by PA between November 2008 and January 2019 were reviewed. Maternal background, pregnancy outcomes, and placental histopathology were compared between cases of PA < 34 weeks (early PA group) vs. > 34 weeks (late PA group). Placental lesions were classified according to the "Amsterdam" criteria. The primary outcome was severe neonatal morbidity (≥ 1 severe neonatal complications: seizures, IVH, HIE, PVL, blood transfusion, NEC, or death). Included were 305 cases of PA, 71 (23.3%) in the early group and 234 (76.7%) in the late group. The early PA group was characterized by higher rates of vaginal bleeding upon presentation (p = 0.003), DIC (p = 0.018), and severe neonatal morbidity (p < 0.001). The late PA group was characterized by a higher rate of urgent Cesarean deliveries (p < 0.001). The early PA group was characterized by higher rates of placental maternal vascular malperfusion (MVM) lesions (p < 0.001), maternal inflammatory response (MIR) lesions (p < 0.001), placental hemorrhage (p < 0.001), and a lower feto-placental ratio (p < 0.001). Using regression analysis, we found that severe neonatal morbidity was independently associated with early abruption (aOR = 5.3, 95% CI = 3.9-7.6), placental MVM (aOR = 1.5, 95% CI = 1.2-1.9), placental MIR (aOR = 1.9, 95% CI = 1.4-2.3), and inversely associated with antenatal corticosteroids (aOR = 0.9, 95% CI = 0.6-0.98). "Early" and "late" PA significantly differ in their presentation, placental pathology, and pregnancy outcomes.
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Volodarsky-Perel A, Nu TNT, Buckett W, Machado-Gedeon A, Cui Y, Shaul J, Dahan MH. Effect of newborn gender on placental histopathology and perinatal outcome in singleton live births following IVF. Reprod Biomed Online 2020; 41:907-916. [PMID: 32933849 DOI: 10.1016/j.rbmo.2020.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/10/2020] [Accepted: 08/06/2020] [Indexed: 02/02/2023]
Abstract
RESEARCH QUESTION Does newborn gender affect placental histopathology pattern and perinatal outcome in singleton live births following IVF treatment? DESIGN Retrospective cohort study evaluating data of all live births from one academic tertiary hospital following IVF treatment during 2009-2017. All patients had placentas sent for pathological evaluation irrelevant of maternal and fetal complications status. Exclusion criteria were abnormal uterine cavity findings, previous uterine surgery, in-vitro maturation cycles, gestational carrier cycles, oocyte recipient cycles, preimplantation genetic diagnosis cycles and multiple pregnancies. The primary outcomes included anatomical, inflammation, vascular malperfusion and villous maturation placental features. The secondary outcomes included fetal, maternal, perinatal and delivery complications. A multivariate analysis was conducted to adjust the results for factors potentially associated with placental pathology features. RESULTS A total of 1057 live births were included in the final analysis and were allocated to the study groups according to fetal gender: males (n = 527) and females (n = 530). After adjustment for potential confounding factors, male gender was significantly associated with villous agglutination (odds ratio [OR] 9.8; 95% confidence interval [CI] 1.4-78.2), avascular villi (OR 4.1; 95% CI 1.3-12.6) and maternal vascular malperfusion (OR 1.8; 95% CI 1.2-2.7). Female gender was significantly associated with bilobed placenta (OR 0.2; 95% CI 0.06-0.8) and subchorionic thrombi (OR 0.5; 95% CI 0.3-0.9). The prevalence of adverse fetal, maternal and delivery outcomes was similar between the groups. CONCLUSIONS Newborn gender has a significant impact on the placental histopathology pattern, which can contribute to the development of adverse perinatal outcomes.
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Affiliation(s)
- Alexander Volodarsky-Perel
- Department of Obstetrics and Gynecology, Royal Victoria Hospital, McGill University, Montreal QC, Canada; Lady Davis Research Institute, Jewish General Hospital, Montreal QC, Canada; Department of Obstetrics and Gynecology, Chaim Sheba Medical Center, Tel Hashomer, affiliated with the Sackler faculty of medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Tuyet Nhung Ton Nu
- Department of Pathology, Royal Victoria Hospital, McGill University, Montreal QC, Canada
| | - William Buckett
- Department of Obstetrics and Gynecology, Royal Victoria Hospital, McGill University, Montreal QC, Canada
| | - Alexandre Machado-Gedeon
- Department of Obstetrics and Gynecology, Royal Victoria Hospital, McGill University, Montreal QC, Canada
| | - Yiming Cui
- Department of Obstetrics and Gynecology, Royal Victoria Hospital, McGill University, Montreal QC, Canada
| | - Jonathan Shaul
- Department of Obstetrics and Gynecology, Royal Victoria Hospital, McGill University, Montreal QC, Canada
| | - Michael H Dahan
- Department of Obstetrics and Gynecology, Royal Victoria Hospital, McGill University, Montreal QC, Canada
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Volodarsky-Perel A, Ton Nu TN, Buckett W, Machado-Gedeon A, Cui Y, Shaul J, Dahan MH. Effect of embryo stage at transfer on placental histopathology features in singleton live births resulting from fresh embryo transfers. Fertil Steril 2020; 115:673-682. [PMID: 32709379 DOI: 10.1016/j.fertnstert.2020.06.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To evaluate the effect of embryo stage at transfer on placental histopathology and perinatal outcome in singleton live births resulting from fresh embryo transfers (ETs). DESIGN Retrospective cohort study. SETTING Not applicable. PATIENT(S) The study population included all live births after fresh ETs during the period from 2009 to 2017. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Primary outcomes included anatomic, inflammatory, vascular malperfusion, and villous maturation placental features. Secondary outcomes included fetal, maternal, and perinatal complications. RESULT(S) A total of 677 live births were included in the final analysis and were allocated to the cleavage-stage (n = 252) and blastocyst (n = 425) ET groups. After the adjustment for confounding factors, the blastocyst group was found to be associated with a higher incidence of circummarginate membranes insertion (odds ratio [OR] 1.9, 95% confidence interval [CI] 1.2-3.4), delayed villous maturation (OR 8.5, 95% CI 1.2-69.3), chorangiosis (OR 2.0, 95% CI 1.2-3.8), parenchymal calcifications (OR 10.6, 95% CI 1.4-80.2), and intrapartum nonreassuring fetal heart rate tracing (OR 2.4, 95% CI 1.3-4.5). Compared with cleavage-stage ETs, live births resulting from the blastocysts were associated with a lower incidence of velamentous cord insertion (OR 0.5, 95% CI 0.3-0.9), retroplacental hematoma (OR 0.3, 95% CI 0.1-0.8), subchorionic thrombi (OR 0.3, 95% CI 0.1-0.8), and avascular villi (OR 0.2, 95% CI 0.03-0.7). CONCLUSION(S) Live births resulting from fresh cleavage-stage and blastocyst ETs have different placental histopathology features, with a higher rate of intrapartum nonreassuring fetal heart rate tracing in the blastocyst group.
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Affiliation(s)
| | | | - William Buckett
- Department of Obstetrics and Gynecology, McGill University, Montreal, Quebec, Canada
| | | | - Yiming Cui
- Department of Obstetrics and Gynecology, McGill University, Montreal, Quebec, Canada
| | - Jonathan Shaul
- Department of Obstetrics and Gynecology, McGill University, Montreal, Quebec, Canada
| | - Michael H Dahan
- Department of Obstetrics and Gynecology, McGill University, Montreal, Quebec, Canada
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Association of periodontitis with pre term low birth weight – A review. Placenta 2020; 95:62-68. [DOI: 10.1016/j.placenta.2020.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 03/16/2020] [Indexed: 01/26/2023]
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Christians JK, Huicochea Munoz MF. Pregnancy complications recur independently of maternal vascular malperfusion lesions. PLoS One 2020; 15:e0228664. [PMID: 32027702 PMCID: PMC7004354 DOI: 10.1371/journal.pone.0228664] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 01/20/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Spontaneous abortions, intrauterine growth restriction, and preeclampsia are thought to be caused by defective placentation and are associated with increased risk of adverse outcomes in subsequent pregnancies. However, it is not known whether the recurrence of adverse outcomes is associated with the recurrence of placental pathology. We hypothesized that recurrent maternal vascular malperfusion (MVM) underlies the recurrence of adverse outcomes. METHODS Using data from the National Collaborative Perinatal Project, we assessed the recurrence of pregnancy complications and MVM lesions (N = 3865), associations between a history of spontaneous abortions and MVM lesions or adverse outcomes in subsequent pregnancies (N = 8312), and whether the recurrence of pregnancy complications occurred independently of the presence of MVM lesions. RESULTS The odds of an MVM lesion were higher for a woman who had had an MVM lesion in a previous pregnancy (aOR = 1.6; 95% CI 1.3-1.9), although this was marginally non-significant after adjusting for covariates such as gestational age, race and BMI. The odds of preeclampsia, a small-for-gestational-age infant, premature delivery and early pregnancy loss were 2.7-5.0 times higher if there had been that same adverse outcome in a previous pregnancy. A history of spontaneous abortions was associated with higher risk of a small-for-gestational-age baby (aOR = 2.4; 95% CI 1.7-3.4) and prematurity (aOR = 5.1; 95% CI 2.3-11.5 for extremely preterm), but not preeclampsia. The recurrence of adverse outcomes was significant when restricting analyses to women without MVM lesions. Similarly, associations between adverse outcomes and previous spontaneous abortions were significant when statistically controlling for the presence of MVM lesions, or excluding pregnancies with MVM lesions. CONCLUSIONS Women with adverse outcomes in one pregnancy are at higher risk of complications in subsequent pregnancies. However, there is significant recurrence of adverse outcomes even in the absence of MVM.
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Affiliation(s)
- Julian K. Christians
- Department of Biological Sciences, Simon Fraser University, Burnaby, Canada
- Centre for Cell Biology, Development and Disease, Simon Fraser University, Burnaby, Canada
- British Columbia Children's Hospital Research Institute, Vancouver, BC, Canada
- Women’s Health Research Institute, Vancouver, BC, Canada
- * E-mail:
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Unique transcriptomic landscapes identified in idiopathic spontaneous and infection related preterm births compared to normal term births. PLoS One 2019; 14:e0225062. [PMID: 31703110 PMCID: PMC6839872 DOI: 10.1371/journal.pone.0225062] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 10/27/2019] [Indexed: 02/07/2023] Open
Abstract
Preterm birth (PTB) is leading contributor to infant death in the United States and globally, yet the underlying mechanistic causes are not well understood. Histopathological studies of preterm birth suggest advanced villous maturity may have a role in idiopathic spontaneous preterm birth (isPTB). To better understand pathological and molecular basis of isPTB, we compared placental villous transcriptomes from carefully phenotyped cohorts of PTB due to infection or isPTB between 28–36 weeks gestation and healthy term placentas. Transcriptomic analyses revealed a unique expression signature for isPTB distinct from the age-matched controls that were delivered prematurely due to infection. This signature included the upregulation of three IGF binding proteins (IGFBP1, IGFBP2, and IGFBP6), supporting a role for aberrant IGF signaling in isPTB. However, within the isPTB expression signature, we detected secondary signature of inflammatory markers including TNC, C3, CFH, and C1R, which have been associated with placental maturity. In contrast, the expression signature of the gestational age-matched infected samples included upregulation of proliferative genes along with cell cycling and mitosis pathways. Together, these data suggest an isPTB molecular signature of placental hypermaturity, likely contributing to the premature activation of inflammatory pathways associated with birth and providing a molecular basis for idiopathic spontaneous birth.
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Visser L, van Buggenum H, van der Voorn JP, Heestermans LAPH, Hollander KWP, Wouters MGAJ, de Groot CJM, de Boer MA. Maternal vascular malperfusion in spontaneous preterm birth placentas related to clinical outcome of subsequent pregnancy. J Matern Fetal Neonatal Med 2019; 34:2759-2764. [PMID: 31665946 DOI: 10.1080/14767058.2019.1670811] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
INTRODUCTION Spontaneous preterm birth (SPTB) has several causes and its pathophysiology remains unclear. In a significant proportion of SPTB, placental histology shows signs of maternal vascular malperfusion (MVM); commonly associated with hypertensive disorders of pregnancy (HD), fetal growth restriction (FGR) and placental abruption, together referred to as clinical ischemic placental diseases (IPD). We hypothesized that women with SPTB and placental MVM are at elevated risk for IPD in a subsequent pregnancy. METHODS We included women with SPTB in our cohort and followed the subsequent ongoing pregnancy (n = 110). Histological placental characteristics in the index were reported according to new international guidelines, and related to the clinical outcome of the subsequent pregnancy. RESULTS In the SPTB placentas, we observed MVM in 61.8% (n = 68). In the subsequent pregnancies in 19.1% (n = 21) at least one clinical sign of IPD was present (HD (12.7%), FGR (5.5%) or placental abruption (0.9%)). There was no significant difference in the prevalence of clinical IPD or recurrence of SPTB in the subsequent pregnancy between women with and without placental MVM in the index pregnancy, although our study was not powered to detect small differences. DISCUSSION Women with a history of SPTB have an elevated risk of IPD in the subsequent pregnancy. MVM is present in a large proportion of SPTB placentas. The presence of placental MVM in the index pregnancy does not predict clinical IPD or recurrent SPTB in a subsequent pregnancy.
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Affiliation(s)
- Laura Visser
- Department of Obstetrics and Gynecology, Amsterdam UMC - Locatie Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Hannah van Buggenum
- Department of Obstetrics and Gynecology, Amsterdam UMC - Locatie Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - J Patrick van der Voorn
- Department of Pathology, Amsterdam UMC - Locatie Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Lotte A P H Heestermans
- Department of Obstetrics and Gynecology, Amsterdam UMC - Locatie Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Kees W P Hollander
- Department of Obstetrics and Gynecology, Amsterdam UMC - Locatie Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maurice G A J Wouters
- Department of Obstetrics and Gynecology, Amsterdam UMC - Locatie Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Christianne J M de Groot
- Department of Obstetrics and Gynecology, Amsterdam UMC - Locatie Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Marjon A de Boer
- Department of Obstetrics and Gynecology, Amsterdam UMC - Locatie Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Samuel TM, Sakwinska O, Makinen K, Burdge GC, Godfrey KM, Silva-Zolezzi I. Preterm Birth: A Narrative Review of the Current Evidence on Nutritional and Bioactive Solutions for Risk Reduction. Nutrients 2019; 11:E1811. [PMID: 31390765 PMCID: PMC6723114 DOI: 10.3390/nu11081811] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 07/18/2019] [Accepted: 08/02/2019] [Indexed: 12/13/2022] Open
Abstract
Preterm birth (PTB) (<37 weeks of gestation) is the leading cause of newborn death and a risk factor for short and long-term adverse health outcomes. Most cases are of unknown cause. Although the mechanisms triggering PTB remain unclear, an inappropriate increase in net inflammatory load seems to be key. To date, interventions that reduce the risk of PTB are effective only in specific groups of women, probably due to the heterogeneity of its etiopathogenesis. Use of progesterone is the most effective, but only in singleton pregnancies with history of PTB. Thus, primary prevention is greatly needed and nutritional and bioactive solutions are a promising alternative. Among these, docosahexaenoic acid (DHA) is the most promising to reduce the risk for early PTB. Other potential nutrient interventions include the administration of zinc (possibly limited to populations with low nutritional status or poor zinc status) and vitamin D; additional preliminary evidence exists for vitamin A, calcium, iron, folic acid, combined iron-folate, magnesium, multiple micronutrients, and probiotics. Considering the public health relevance of PTB, promising interventions should be studied in large and well-designed clinical trials. The objective of this review is to describe, summarize, and discuss the existing evidence on nutritional and bioactive solutions for reducing the risk of PTB.
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Affiliation(s)
| | | | | | - Graham C Burdge
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK
| | - Keith M Godfrey
- MRC Lifecourse Epidemiology Unit and NIHR Southampton Biomedical Research Centre, University of Southampton & University Hospital Southampton NHS Foundation Trust, Southampton SO16 6YD, UK
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Circulating microparticle proteins obtained in the late first trimester predict spontaneous preterm birth at less than 35 weeks' gestation: a panel validation with specific characterization by parity. Am J Obstet Gynecol 2019; 220:488.e1-488.e11. [PMID: 30690014 DOI: 10.1016/j.ajog.2019.01.220] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 01/14/2019] [Accepted: 01/21/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND We have previously shown that protein biomarkers associated with circulating microparticles proteins (CMPs) obtained at the end of the first trimester may detect physiologic changes in maternal-fetal interaction such that the risk of spontaneous preterm delivery ≤35 weeks can be stratified. OBJECTIVES We present here a study extension and validation of the CMP protein multiplex concept using a larger sample set from a multicenter population that allows for model derivation in a training set and characterization in a separate testing set. MATERIALS AND METHODS Ethylenediaminetetraacetic acid (EDTA) plasma was obtained from 3 established biobanks (Seattle, Boston, and Pittsburgh). Samples were from patients at a median of 10-12 weeks' gestation, and the CMPs were isolated via size-exclusion chromatography followed by protein identification via targeted protein analysis using liquid chromatography-multiple reaction monitoring-mass (LC-MRM) spectrometry. A total of 87 women delivered at ≤35 weeks, and 174 women who delivered at term were matched by maternal age (±2 years) and gestational age at sample draw (±2 weeks). From our prior work, the CMP protein multiplex comprising F13A, FBLN1, IC1, ITIH2, and LCAT was selected for validation. RESULTS For delivery at ≤35 weeks, the receiver operating characteristic (ROC) curve for a panel of CMP proteins (F13A, FBLN1, IC1, ITIH2, and LCAT) revealed an associated area under the ROC curve (AUC) of 0.74 (95% CI, 0.63-0.81). A separate panel of markers (IC1, LCAT, TRFE, and ITIH4), which stratified risk among mothers with a parity of 0, showed an AUC of 0.77 (95% CI, 0.61-0.90). CONCLUSION We have identified a set of CMP proteins that provide, at 10-12 weeks gestation, a clinically useful AUC in an independent test population. Furthermore, we determined that parity is pertinent to the diagnostic testing performance of the biomarkers for risk stratification.
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Aung MT, Ferguson KK, Cantonwine DE, McElrath TF, Meeker JD. Preterm birth in relation to the bisphenol A replacement, bisphenol S, and other phenols and parabens. ENVIRONMENTAL RESEARCH 2019; 169:131-138. [PMID: 30448626 PMCID: PMC6347500 DOI: 10.1016/j.envres.2018.10.037] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 10/25/2018] [Accepted: 10/30/2018] [Indexed: 05/14/2023]
Abstract
INTRODUCTION Preterm birth continues to be a significant public heath concern and is a leading cause of perinatal and infant mortality. Environmental exposures to phenols and parabens are suspected to potentially contribute to the pathology of preterm birth, yet limited human studies have characterized the extent to which these toxicants are associated with birth outcomes. METHODS We examined the associations between phenols, parabens, and preterm birth, within pregnant women who were recruited early in gestation into the LIFECODES cohort at Brigham and Women's Hospital in Boston, Massachusetts. Urine samples were collected at up to 4 time points in pregnancy and analyzed for phenols and parabens. We selected 130 cases of preterm birth (defined as delivery before 37 weeks gestation), and 350 random controls. We categorized preterm birth subtypes based on clinical presentation and identified 75 cases of spontaneous preterm birth (characterized by spontaneous preterm labor and/or preterm premature rupture of membranes), and 37 cases of placental preterm birth (characterized by preeclampsia and/or intrauterine growth restriction). We used multivariate logistic regression with visit specific and geometric averages of phenols and parabens to determine associations with preterm birth. RESULTS We observed moderate variability in urinary phenol and paraben concentrations over pregnancy with intraclass correlation coefficients ranging between 0.45 and 0.68. Regression analyses indicated mostly null associations. We observed inverse associations, notably between 2,5-dichlorophenol and overall preterm birth (adjusted odds ratio [95% confidence interval, CI]: 0.79 [0.67 - 0.94]), and this relationship was consistent by study visit. Conversely, ethyl paraben was associated with increased risk for placental preterm birth (adjusted odds ratio [95% CI]: 1.47 [1.14 - 1.91]). Bisphenol-S detection at visit 4 was associated with overall preterm birth (adjusted odds ratio [95% CI]: 2.05 [1.09, 3.89]). CONCLUSIONS While the findings from this study largely indicate null associations, we observed some relationships between select phenols, parabens and preterm birth, which warrants further investigation of these toxicants and birth outcomes.
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Affiliation(s)
- Max T Aung
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, United States
| | - Kelly K Ferguson
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, United States; Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States
| | - David E Cantonwine
- Division of Maternal and Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Thomas F McElrath
- Division of Maternal and Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - John D Meeker
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, United States.
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Christians JK, Grynspan D. Placental villous hypermaturation is associated with improved neonatal outcomes. Placenta 2019; 76:1-5. [PMID: 30803708 DOI: 10.1016/j.placenta.2019.01.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/10/2019] [Accepted: 01/11/2019] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Accelerated placental maturation is considered a sign of maternal vascular malperfusion, and is often interpreted as an adaptive, compensatory response by the placenta. We tested this interpretation by comparing outcomes in pregnancies with and without accelerated maturation. METHODS Using data from the National Collaborative Perinatal Project, we categorized preterm placentas (24-34 weeks, inclusive; 2525 births) by whether they showed placental villous hypermaturation (PVH), i.e., had the appearance of a placenta of 37 weeks or over upon microscopic examination. We assessed whether PVH was associated with maternal race, maternal BMI, fetal sex, type of preterm birth, preeclampsia, signs of infection or inflammation or placental abruption. We also assessed whether placentas showing PVH were associated with improved outcomes in terms of survival, Apgar score, or oxygen use. RESULTS PVH was more common in preeclamptic pregnancies and less common in pregnancies complicated by placental abruption or showing signs of placental infection or inflammation. Adjusting for potentially confounding factors, PVH was associated with reduced odds of fetal death, death between birth and 120 days of age, low Apgar scores and oxygen use. PVH was also associated with higher birthweights for gestational age. When correcting for the effect of birthweight, the association between PVH and reduced fetal and neonatal death remained significant. DISCUSSION Accelerated placental maturation, as manifested by PVH, is associated with improved outcomes. Our work therefore supports the hypothesis that accelerated maturation is a compensatory response by the placenta to improve its transport capacity in specific pregnancy complications.
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Affiliation(s)
- Julian K Christians
- Department of Biological Sciences, Simon Fraser University, Burnaby, Canada.
| | - David Grynspan
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Canada.
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Leneuve-Dorilas M, Favre A, Louis A, Bernard S, Carles G, Nacher M. Risk Factors for Very Preterm Births in French Guiana: The Burden of Induced Preterm Birth. AJP Rep 2019; 9:e44-e53. [PMID: 30838164 PMCID: PMC6398999 DOI: 10.1055/s-0039-1678716] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 09/08/2018] [Indexed: 12/22/2022] Open
Abstract
Background Early preterm births are still represented as a major public health problem in French Guiana. The objective of the present study was to study factors associated with early preterm birth in French Guiana. Methods A monocentric age-matched case control study was conducted at the sole level 3 maternity in French Guiana. In utero fetal deaths and multiple pregnancies were not included. Cases were defined as giving birth prematurely between 22 and 32 weeks of pregnancy. Controls were defined as women delivering on term. For each case three controls were matched on age. In utero deaths, medical pregnancy interruptions and multiple pregnancies (a known major cause of preterm delivery) were excluded from the study. Sociodemographic variables, medical and obstetrical history, the complications of the current pregnancy, and the results of the last vaginal swab before delivery were recorded in the second or the third trimester. Thematic conditional logistic regression models were computed. Results Overall 94 cases and 282 matched controls were included. Preterm delivery was spontaneous in 47.9% (45/94) of the cases and induced in 52.1% (49/94).A history of preterm birth was associated with both spontaneous and induced preterm delivery. The absence of health insurance was associated with spontaneous early preterm delivery AOR (adjusted odd ratio) = 9.1 (2.2-38.3), p = 0.002 but not induced preterm delivery adjusted odd ratio (AOR) = 2.1 (0.6-6.7), p = 0.2. Gravidic hypertension, placenta praevia, intrauterine growth retardation and mostly preeclampsia (66%, 32/49) were linked to induced preterm delivery but not spontaneous delivery. Gardnerellavaginalis and group B Streptococcus infections were significantly associated with induced early preterm delivery but not spontaneous early preterm delivery. Conclusions Social factors were associated with spontaneous early preterm delivery, suggesting that efforts to reduce psychosocial stressors could lead to potential improvements. Vaginal infections were also associated with induced preterm labor suggesting that early diagnosis and treatment could reduce induced early preterm delivery. Preeclampsia was a major contributor to induced early preterm delivery. Reliable routine predictors of preeclampsia are still not available which makes its prevention impossible in first pregnancies.
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Affiliation(s)
| | - Anne Favre
- French Guiana Perinat Network, Cayenne General Hospital, Cayenne, French Guiana
| | | | - Stéphanie Bernard
- French Guiana Perinat Network, Cayenne General Hospital, Cayenne, French Guiana
| | - Gabriel Carles
- Hospital of Saint–Laurent du Maroni, Saint–Laurent du Maroni, French Guiana
| | - Mathieu Nacher
- University of French Guiana, Cayenne General Hospital, Cayenne, French Guiana
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Chisholm KM, Norton ME, Penn AA, Heerema-McKenney A. Classification of Preterm Birth With Placental Correlates. Pediatr Dev Pathol 2018; 21:548-560. [PMID: 29759046 DOI: 10.1177/1093526618775958] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Premature birth lacks a widely accepted classification that unites features of the clinical presentation with placental pathology. To further explore associations between the clinical categories of preterm birth and placental histology, 109 infants with gestational age <34 weeks and birth weight <2000 g were selected and, based on electronic records, were classified into preterm birth categories of preterm labor, prelabor premature rupture of membranes, preeclampsia, indicated preterm birth for maternal factors (other than preeclampsia), indicated preterm birth for fetal factors, and the clinical diagnosis of abruption. Corresponding placentas were analyzed for gross and microscopic variables, with findings grouped into categories of amniotic fluid infection, lymphocytic inflammation, maternal vascular malperfusion, and fetal vascular malperfusion. Placental features of maternal vascular malperfusion were pervasive in all preterm birth categories and were commonly associated with amniotic fluid infection and lymphocytic inflammation. Features of maternal vascular malperfusion were significantly associated with preterm birth due to preeclampsia, and amniotic fluid infection was highly associated with prelabor preterm rupture of membranes. Findings of lymphocytic inflammation were significantly increased in cases of abruption. Laminar decidual necrosis was present in all cases of abruption. Placentas from multiple gestations had significantly less histologic findings compared to singletons. Given that 75% of placentas demonstrated at least 1 feature of maternal vascular malperfusion despite different clinical presentations, seemingly different pathologies such as ascending amniotic fluid infection or lymphocytic inflammation may be mechanistically related to processes established early in pregnancy. The concept of "uterine ischemia" may be too simplistic to account for all of the changes attributed to maternal vascular malperfusion in the preterm placenta.
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Affiliation(s)
- Karen M Chisholm
- 1 Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Mary E Norton
- 2 Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Stanford University School of Medicine, Stanford, California
| | - Anna A Penn
- 3 Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - Amy Heerema-McKenney
- 1 Department of Pathology, Stanford University School of Medicine, Stanford, California
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Heerema-McKenney A. Defense and infection of the human placenta. APMIS 2018; 126:570-588. [PMID: 30129129 DOI: 10.1111/apm.12847] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 04/22/2018] [Indexed: 12/14/2022]
Abstract
The placenta functions as a shield against infection of the fetus. The innate and adaptive immune defenses of the developing fetus are poorly equipped to fight infections. Infection by bacteria, viruses, and protozoa may cause infertility, spontaneous abortion, stillbirth, growth retardation, anomalies of development, premature delivery, neonatal morbidity, and mortality. However, appreciation of the human microbiome and host cell-microbe interactions must be taken into consideration as we try to determine what interactions are pathologic. Infection is typically recognized histologically by the presence of inflammation. Yet, several factors make comparison of the placenta to other human organs difficult. The placenta comprises tissues from two persons, complicating the role of the immune system. The placenta is a temporary organ. It must be eventually expelled; the processes leading to partuition involve maternal inflammation. What is normal or pathologic may be a function of timing or extent of the process. We now must consider whether bacteria, and even some viruses, are useful commensals or pathogens. Still, recognizing infection of the placenta is one of the most important contributions placental pathologic examination can give to care of the mother and neonate. This review provides a brief overview of placental defense against infection, consideration of the placental microbiome, routes of infection, and the histopathology of amniotic fluid infection and TORCH infections.
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Affiliation(s)
- Amy Heerema-McKenney
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
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Ernst LM. Maternal vascular malperfusion of the placental bed. APMIS 2018; 126:551-560. [DOI: 10.1111/apm.12833] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 02/28/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Linda M. Ernst
- Department of Pathology and Laboratory Medicine; NorthShore University HealthSystem; Evanston Hospital; Evanston IL USA
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Abstract
OBJECTIVE To evaluate whether psychostimulants used to treat attention-deficit/hyperactivity disorder (ADHD) are associated with risk of adverse placental-associated pregnancy outcomes including preeclampsia, placental abruption, growth restriction, and preterm birth. METHODS We designed a population-based cohort study in which we examined a cohort of pregnant women and their liveborn neonates enrolled in Medicaid from 2000 to 2010. Women who received amphetamine-dextroamphetamine or methylphenidate monotherapy in the first half of pregnancy were compared with unexposed women. We considered atomoxetine, a nonstimulant ADHD medication, as a negative control exposure. To assess whether the risk period extended to the latter half of pregnancy, women who continued stimulant monotherapy after 20 weeks of gestation were compared with those who discontinued. Risk ratios and 95% CIs were estimated with propensity score stratification to control for confounders. RESULTS Pregnancies exposed to amphetamine-dextroamphetamine (n=3,331), methylphenidate (n=1,515), and atomoxetine (n=453) monotherapy in early pregnancy were compared with 1,461,493 unexposed pregnancies. Among unexposed women, the risks of the outcomes were 3.7% for preeclampsia, 1.4% for placental abruption, 2.9% for small for gestational age, and 11.2% for preterm birth. The adjusted risk ratio for stimulant use was 1.29 for preeclampsia (95% CI 1.11-1.49), 1.13 for placental abruption (0.88-1.44), 0.91 for small for gestational age (0.77-1.07), and 1.06 for preterm birth (0.97-1.16). Compared with discontinuation (n=3,527), the adjusted risk ratio for continuation of stimulant use in the latter half of pregnancy (n=1,319) was 1.26 for preeclampsia (0.94-1.67), 1.08 for placental abruption (0.67-1.74), 1.37 for small for gestational age (0.97-1.93), and 1.30 for preterm birth (1.10-1.55). Atomoxetine was not associated with the outcomes studied. CONCLUSION Psychostimulant use during pregnancy was associated with a small increased relative risk of preeclampsia and preterm birth. The absolute increases in risks are small and, thus, women with significant ADHD should not be counseled to suspend their ADHD treatment based on these findings.
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Ray JG, Park AL, Fell DB. Mortality in Infants Affected by Preterm Birth and Severe Small-for-Gestational Age Birth Weight. Pediatrics 2017; 140:peds.2017-1881. [PMID: 29117948 DOI: 10.1542/peds.2017-1881] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/01/2017] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Few researchers have evaluated neonatal mortality in the combined presence of preterm birth (PTB) and small-for-gestational age (SGA) birth weight. None differentiated between infants with and without anomalies, considered births starting at 23 weeks' gestation, or defined SGA at a more pathologic cutpoint less than the fifth percentile. METHODS We completed a population-based cohort study within the province of Ontario, Canada, from 2002 to 2015. Included were 1 676 110 singleton hospital live births of 23 to 42 weeks' gestation. Modified Poisson regression compared rates and relative risks of neonatal mortality among those with (1) preterm birth at 23 to 36 weeks' gestation and concomitant severe small for gestational age (PTB-SGA), (2) PTB at 23 to 36 weeks' gestation without severe SGA, (3) term birth with severe SGA, and each relative to (4) neither. Relative risks were adjusted for maternal age and stratified by several demographic variables. RESULTS Relative to a neonatal mortality rate of 0.6 per 1000 term infants without severe SGA, the rate was 2.8 per 1000 among term births with severe SGA (adjusted relative risk [aRR] 4.6; 95% confidence interval [CI] 4.0-5.4), 22.9 per 1000 for PTB without severe SGA (aRR 38.3; 95% CI 35.4-41.4) and 60.0 per 1000 for PTB-SGA (aRR 96.7; 95% CI 85.4-109.5). Stratification by demographic factors showed a persistence of this pattern of neonatal death. Restricting the sample to births at ≥24 weeks' gestation, or newborns without a congenital or chromosomal anomaly, also demonstrated the same pattern. CONCLUSIONS Methods to detect or prevent PTB or SGA should focus on PTB-SGA, which serves as a useful perinatal surveillance indicator.
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Affiliation(s)
- Joel G Ray
- Department of Obstetrics and Gynecology, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada; .,Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada; and
| | - Alison L Park
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada; and
| | - Deshayne B Fell
- School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
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Paz-Levy D, Schreiber L, Erez O, Goshen S, Richardson J, Drunov VI, Staretz Chacham O, Shany E. Inflammatory and vascular placental lesions are associated with neonatal amplitude integrated EEG recording in early premature neonates. PLoS One 2017. [PMID: 28644831 PMCID: PMC5482430 DOI: 10.1371/journal.pone.0179481] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Placental histologic examination can assist in revealing the mechanism leading to preterm birth. Accumulating evidence suggests an association between intrauterine pathological processes, morbidity and mortality of premature infants, and their long term outcome. Neonatal brain activity is increasingly monitored in neonatal intensive care units by amplitude integrated EEG (aEEG) and indices of background activity and sleep cycling patterns were correlated with long term outcome. We hypothesized an association between types of placental lesions and abnormal neonatal aEEG patterns. OBJECTIVE To determine the association between the placental lesions observed in extreme preterm deliveries, and their neonatal aEEG patterns and survival. PATIENTS AND METHODS This prospective cohort study included extreme premature infants, who were born ≤ 28 weeks of gestation, their placentas were available for histologic examination, and had a continues aEEG, soon after birth)n = 34). Infants and maternal clinical data were collected. aEEG data was assessed for percentage of depressed daily activity in the first 3 days of life and for sleep cycling. Associations of placental histology with clinical findings and aEEG activity were explored using parametric and non-parametric statistics. RESULTS Twenty two out of the 34 newborns survived to discharge. Preterm prelabor rupture of membranes (PPROM) or chorioamnionitis were associated with placental lesions consistent with fetal amniotic fluid infection (AFI) or maternal under perfusion (MUP) (P < 0.05). Lesions consistent with fetal response to AFI were associated with absence of SWC pattern during the 1st day of life. Fetal-vascular-thrombo-occlusive lesions of inflammatory type were negatively associated with depressed cerebral activity during the 1st day of life, and with aEEG cycling during the 2nd day of life (P<0.05). Placental lesions associated with MUP were associated with depressed neonatal cerebral activity during the first 3 days of life (P = 0.007). CONCLUSIONS Depressed neonatal aEEG patterns are associated with placental lesions consistent with maternal under perfusion, and amniotic fluid infection of fetal type, but not with fetal thrombo-oclusive vascular disease of inflammatory type. Our findings highlight the association between the intrauterine mechanisms leading to preterm parturition and subsequent depressed neonatal cerebral function early after birth, which eventually may put premature infants at risk for abnormal neurodevelopmental outcome.
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Affiliation(s)
- Dorit Paz-Levy
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, School of Medicine, Ben-Gurion University of the Negev Beer Sheva, Israel
| | | | - Offer Erez
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, School of Medicine, Ben-Gurion University of the Negev Beer Sheva, Israel
- * E-mail:
| | - Sharon Goshen
- Department of Epidemiology, Faculty of Health Sciences, School of Medicine, Ben-Gurion University of the Negev, Beer Sheva, Israel
- Department of Neonatology, Soroka University Medical Center, Faculty of Health Sciences, School of Medicine, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Justin Richardson
- Department of Neonatology, Soroka University Medical Center, Faculty of Health Sciences, School of Medicine, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - VIadimir Drunov
- Department of Pathology, Soroka University Medical Center, Faculty of Health Sciences, School of Medicine, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Orna Staretz Chacham
- Department of Neonatology, Soroka University Medical Center, Faculty of Health Sciences, School of Medicine, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Eilon Shany
- Department of Neonatology, Soroka University Medical Center, Faculty of Health Sciences, School of Medicine, Ben-Gurion University of the Negev, Beer Sheva, Israel
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van der Krogt L, Ridout AE, Seed PT, Shennan AH. Placental inflammation and its relationship to cervicovaginal fetal fibronectin in preterm birth. Eur J Obstet Gynecol Reprod Biol 2017; 214:173-177. [PMID: 28535404 DOI: 10.1016/j.ejogrb.2017.05.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 05/01/2017] [Accepted: 05/02/2017] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Late miscarriage and preterm birth are frequently thought to be associated with inflammation and infection, although in most cases the underlying cause of early delivery remains unknown. The placenta is the organ that links mother and fetus during pregnancy, and postnatal examination may provide useful information about pathophysiology. The relationship between placental pathological lesions and predictive markers of early delivery has not been explored. We sought to characterize preterm deliveries according to placental pathology and relate these to the performance of reliable predictive markers, fetal fibronectin and cervical length. STUDY DESIGN This is a retrospective subanalysis from a larger prospective cohort study on sonographic cervical length, quantitative fetal fibronectin and risk of spontaneous preterm birth. Our cohort was comprised of high-risk asymptomatic women attending the Prematurity Surveillance Clinic at St Thomas' Hospital between 2002 and 2015, who went on to have a late miscarriage or preterm delivery (16-36+6 weeks') and who had available placental histology. The placental pathology of these preterm deliveries was characterized according to the lesions identified, and categorized (according to the Redman classification) into inflammatory (e.g. chorioamnionitis) or non-inflammatory (histologically normal or vascular lesions indicating e.g. malperfusion). We sought to relate placental findings to the performance of reliable predictive markers, in women who delivered early. Standard clinical cut offs for cervical length (<25mm) and fetal fibronectin (>50ng/mL) were used to identify the proportion of preterm births that were accurately predicted by the tests or who showed a false negative result, in relation to their placental histology findings. Binomial logistic regression was carried out to evaluate the relationship between placental inflammation, quantitative fFN and cervical length as continuous variables. RESULTS 105 women who had a late miscarriage or preterm delivery (16-36+6 weeks') and available placenta pathology were identified. 66% (42/64) of those with inflammatory placental pathology had a positive fetal fibronectin swab result compared to 15% (6/41) of those with non-inflammatory placental pathology (chi-squared 25.9, 95% CI 31.5 to 65.6, p<0.0001). A logistic regression model subanalysis of women in whom both CL and quantitative fFN results were available (n=66) revealed a highly statistically significant relationship with inflammatory placental lesions (p=0.003 and p=0.001 respectively). Placental inflammation was found to be associated with both increasing levels of fFN and a shortening cervix. CONCLUSION There is a significant association between a positive fetal fibronectin result and underlying inflammatory pathology of the placenta, even more so than the recognized relationship with short cervical length. Infective morbidity may be increased in women and neonates with positive fetal fibronectin who deliver preterm.
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Affiliation(s)
- Laura van der Krogt
- Barts and the London School of Medicine and Dentistry, London, England, United Kingdom
| | - Alexandra E Ridout
- Division of Women's Health, King's College London, Women's Health Academic Centre, King's Health Partners, St. Thomas' Hospital, London, England, United Kingdom.
| | - Paul T Seed
- Division of Women's Health, King's College London, Women's Health Academic Centre, King's Health Partners, St. Thomas' Hospital, London, England, United Kingdom
| | - Andrew H Shennan
- Division of Women's Health, King's College London, Women's Health Academic Centre, King's Health Partners, St. Thomas' Hospital, London, England, United Kingdom
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Puertas A, Magan-Fernandez A, Blanc V, Revelles L, O'Valle F, Pozo E, León R, Mesa F. Association of periodontitis with preterm birth and low birth weight: a comprehensive review. J Matern Fetal Neonatal Med 2017; 31:597-602. [PMID: 28282773 DOI: 10.1080/14767058.2017.1293023] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
It is estimated that six million perinatal deaths occur every year worldwide, with premature birth being the main cause. Scientific evidence has shown that there is an association between periodontal health during pregnancy and adverse outcomes of labor, although interventional studies based on the treatment of periodontitis have failed to document an impact on reducing the incidence of preterm birth (PB) or low birth weight (LBW). Two pathogenic mechanisms have been proposed to explain this association. The direct pathway is based on the presence of gram-negative anaerobic bacteremia originating in the gingival biofilm, whereas the indirect pathway involves the production of pro-inflammatory markers which enter the bloodstream from the gingival submucosa. The result is the same: the development of an immune inflammatory response and/or the local suppression of growth factors in the fetal-placental unit, which in turn triggers labor. In the present review, we describe current concepts pertinent to PB and LBW, chronic and aggressive periodontitis, and the most frequent aspects of periodontal pathology during pregnancy. We evaluate the scientific evidence available to date, and offer a detailed description of the two pathways proposed to explain the association of maternal periodontitis with preterm and LBW delivery.
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Affiliation(s)
- Alberto Puertas
- a Department of Obstetrics and Gynecology , "Virgen de las Nieves" University Hospital , Granada , Spain
| | | | - Vanessa Blanc
- c Microbiology Laboratory, Dentaid Research Center , Barcelona , Spain
| | - Laura Revelles
- a Department of Obstetrics and Gynecology , "Virgen de las Nieves" University Hospital , Granada , Spain
| | - Francisco O'Valle
- d Pathology Department, School of Medicine , (IBIMER, CIBM) University of Granada , Granada , Spain
| | - Elena Pozo
- b Periodontology Department, School of Dentistry , University of Granada , Granada , Spain
| | - Ruben León
- c Microbiology Laboratory, Dentaid Research Center , Barcelona , Spain
| | - Francisco Mesa
- b Periodontology Department, School of Dentistry , University of Granada , Granada , Spain
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