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cervical length preterm delivery

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https://www.readbyqxmd.com/read/28716915/prostaglandin-dehydrogenase-is-a-target-for-successful-induction-of-cervical-ripening
#1
Annavarapu Hari Kishore, Hanquan Liang, Mohammed Kanchwala, Chao Xing, Thota Ganesh, Yucel Akgul, Bruce Posner, Joseph M Ready, Sanford D Markowitz, Ruth Ann Word
The cervix represents a formidable structural barrier for successful induction of labor. Approximately 10% of pregnancies undergo induction of cervical ripening and labor with prostaglandin (PG) E2 or PGE analogs, often requiring many hours of hospitalization and monitoring. On the other hand, preterm cervical ripening in the second trimester predicts preterm birth. The regulatory mechanisms of this paradoxical function of the cervix are unknown. Here, we show that PGE2 uses cell-specific EP2 receptor-mediated increases in Ca(2+) to dephosphorylate and translocate histone deacetylase 4 (HDAC4) to the nucleus for repression of 15-hydroxy prostaglandin dehydrogenase (15-PGDH)...
July 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28700642/bacterial-communities-found-in-placental-tissues-are-associated-with-severe-chorioamnionitis-and-adverse-birth-outcomes
#2
Ronan M Doyle, Kathryn Harris, Steve Kamiza, Ulla Harjunmaa, Ulla Ashorn, Minyanga Nkhoma, Kathryn G Dewey, Kenneth Maleta, Per Ashorn, Nigel Klein
Preterm birth is a major cause of neonatal mortality and morbidity worldwide. Bacterial infection and the subsequent inflammatory response are recognised as an important cause of preterm birth. It is hypothesised that these organisms ascend the cervical canal, colonise placental tissues, cause chorioamnionitis and in severe cases infect amniotic fluid and the foetus. However, the presence of bacteria within the intrauterine cavity does not always precede chorioamnionitis or preterm birth. Whereas previous studies observing the types of bacteria present have been limited in size and the specificity of a few predetermined organisms, in this study we characterised bacteria found in placental tissues from a cohort of 1391 women in rural Malawi using 16S ribosomal RNA gene sequencing...
2017: PloS One
https://www.readbyqxmd.com/read/28693352/transvaginal-sonographic-assessment-of-cervix-in-prediction-of-admission-to-delivery-interval-in-preterm-premature-rupture-of-membranes
#3
Vimala Kathir, Dilip Maurya, Anish Keepanasseril
OBJECTIVE: To assess the usefulness of cervical parameters measured by transvaginal sonography, that is, cervical length and posterior cervical angle, in predicting the admission to delivery interval in women with preterm rupture of membranes. METHODS: This prospective study was conducted in a tertiary care centre in South India. Women with preterm premature rupture of membranes at 28-34 weeks, confirmed clinically, not in labour and presenting within 24 hours to hospital were included...
July 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28683739/a-multi-centre-non-inferiority-randomised-controlled-trial-to-compare-a-cervical-pessary-with-a-cervical-cerclage-in-the-prevention-of-preterm-delivery-in-women-with-short-cervical-length-and-a-history-of-preterm-birth-pc-study
#4
Bouchra Koullali, Liselotte E M van Kempen, Maud D van Zijl, Christiana A Naaktgeboren, Ewoud Schuit, Dick J Bekedam, Maureen T M Franssen, Sebastiaan W A Nij Bijvank, Marieke Sueters, Marchien van Baal, Marjon A de Boer, Angelo B Hooker, Brenda B J Hermsen, Toon A A M Toolenaar, Joost J Zwart, David P van der Ham, Flip W van der Made, Federico Prefumo, Begoña Martinez de Tejada, Dimitri N M Papatsonis, Anjoke J M Huisjes, Liesbeth H C J Scheepers, Marion E van Hoorn, Tom H M Hasaart, Nico W E Schuitemaker, Karlijn C Vollebregt, Moira A Müller, Inge M Evers, Marinka S Post, Karin de Boer, Henricus Visser, Nico A Mensing van Charante, Josje Langenveld, Nicole Y C Steemers, Ben W J Mol, Martijn A Oudijk, Eva Pajkrt
No abstract text is available yet for this article.
July 6, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28651447/the-association-between-fetal-fibronectin-and-spontaneous-preterm-birth-in-twin-pregnancies-with-a-shortened-cervical-length
#5
Kathy C Matthews, Simi Gupta, Jennifer Lam-Rachlin, Daniel H Saltzman, Andrei Rebarber, Nathan S Fox
OBJECTIVE: To estimate the association between a positive fetal fibronectin (fFN) and spontaneous preterm birth (SPTB) in twin pregnancies with a shortened cervical length (CL). STUDY DESIGN: Retrospective cohort study of asymptomatic twin pregnancies managed by a single MFM practice from 2005 to 2016. We included all women with a shortened CL ≤25 mm at 22-28 weeks, and compared outcomes between women with a positive and negative fFN result. RESULTS: One hundred fifty-five patients were included, 129 (83...
July 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28639717/a-prospective-study-on-transvaginal-ultrasound-of-cervical-length-cl-in-the-first-and-second-trimester-in-a-low-risk-population
#6
C B Wulff, L Rode, S Rosthøj, E Hoseth, O B Petersen, A Tabor
OBJECTIVES: To assess cervical length (CL) longitudinally in the first and second trimester and to determine the proportion of women with a short CL. Further, to assess if women with a short CL at 19-24 weeks could be identified at the combined first-trimester screening (cFTS) at 11-14 weeks in relation to a potential implementation of CL screening in the Danish population. METHODS: We recruited singleton pregnant women attending the combined first-trimester screening from 1 November 2013 to 1 December 2014 to a longitudinal prospective study at three University Hospitals in Denmark...
June 22, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28613021/combined-value-of-placental-alpha-microglobulin-1-detection-and-cervical-length-via-transvaginal-ultrasound-in-the-diagnosis-of-preterm-labor-in-symptomatic-patients
#7
Vyacheslav Bolotskikh, Vera Borisova
AIM: We aimed to evaluate the combined value of placental alpha microglobulin-1 (PAMG-1) and cervical length (CL) via transvaginal ultrasound for assessing risk of imminent spontaneous preterm delivery in patients presenting with threatened preterm labor (PTL). METHODS: Clinical exam, PAMG-1 test, cardiotocography, and CL measurement via transvaginal ultrasound were performed on all patients meeting inclusion criteria. Ninety-nine patients at 22(+0) -36(+6) gestational weeks with the symptoms of PTL were included...
June 14, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28612662/preterm-premature-rupture-of-membranes-is-home-care-acceptable
#8
Chloé Dussaux, Marie-Victoire Senat, Hanane Bouchghoul, Alexandra Benachi, Laurent Mandelbrot, Gilles Kayem
BACKGROUND: Preterm prelabor rupture of membranes is a frequent obstetric condition associated with increased risks of maternal and neonatal morbidity and mortality. Conventional management is in hospital. Outpatient management is an alternative in selected cases; however, the safety of home management has not been established. OBJECTIVE: To study the obstetric and neonatal outcomes of women with preterm premature rupture of membranes between 24 and 34 weeks who were managed as outpatient (outpatient care group), compared with those managed in hospital (hospital care group)...
July 6, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28585708/the-cytokine-network-in-women-with-an-asymptomatic-short-cervix-and-the-risk-of-preterm-delivery
#9
Adi L Tarca, Wendy Fitzgerald, Piya Chaemsaithong, Zhonghui Xu, Sonia S Hassan, Jean-Charles Grivel, Nardhy Gomez-Lopez, Bogdan Panaitescu, Percy Pacora, Eli Maymon, Offer Erez, Leonid Margolis, Roberto Romero
PROBLEM: To characterize the amniotic fluid (AF) inflammatory-related protein (IRP) network in patients with a sonographic short cervix (SCx) and to determine its relation to early preterm delivery (ePTD). METHOD OF STUDY: A retrospective cohort study included women with a SCx (≤25 mm; n=223) who had amniocentesis and were classified according to gestational age (GA) at diagnosis and delivery (ePTD <32 weeks of gestation). RESULTS: (i) In women with a SCx ≤ 22 1/7 weeks, the concentration of most IRPs increased as the cervix shortened; those with ePTD had a higher rate of increase in MIP-1α, MCP-1, and IL-6 concentrations than those delivering later; and (ii) the concentration of most IRPs and the correlation between several IRP pairs were higher in the ePTD group than for those delivering later...
June 6, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28573877/activity-restriction-and-risk-of-preterm-delivery
#10
Heather I Levin, Anthony Sciscione, Cande V Ananth, Daphnie Drassinower, Sarah G Obican, Ronald J Wapner
PURPOSE: We sought to determine if activity restriction (AR) in a cohort of women at high risk for preterm delivery is associated with the risk of preterm delivery. MATERIALS AND METHODS: This is a secondary analysis of the MFMU's Preterm Prediction Study; a multicenter prospective cohort study designed to identify risk factors of preterm birth. The study group consisted of women with a singleton gestation that at their first study visit (23-24 weeks) had at least one of the following criteria: patient reported contractions, severe back pain, a cervical length <15 mm, spotting, protruding membranes, or positive fetal fibronectin...
June 2, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28570639/cerclage-position-cervical-length-and-preterm-delivery-in-women-undergoing-ultrasound-indicated-cervical-cerclage-a-retrospective-cohort-study
#11
Joanna R Cook, Susan Chatfield, Manju Chandiramani, Lindsay Kindinger, Stefano Cacciatore, Lynne Sykes, Tiong Teoh, Andrew Shennan, Vasso Terzidou, Phillip R Bennett
OBJECTIVE: The objectives were to assess whether anatomical location of ultrasound (USS) indicated cervical cerclage and/or the degree of cervical shortening (cervical length; CL) prior to and following cerclage affects the risk of preterm birth (PTB). METHOD: A retrospective cohort study of 179 women receiving cerclage for short cervix (≤25mm) was performed. Demographic data, CL before and after cerclage insertion, height of cerclage (distance from external os) and gestation at delivery were collected...
2017: PloS One
https://www.readbyqxmd.com/read/28540576/cervical-length-dynamics-in-triplet-pregnancies-a-retrospective-cohort-study
#12
Sophie Pils, Stephanie Springer, Verena Wehrmann, Kinga Chalubinski, Johannes Ott
PURPOSE: To review our experience with a screening program that included sequential cervical length measurements in our large population of triplet pregnancies. METHODS: Seventy-eight triplet pregnancies were retrospectively included. Cervical length measurements were performed by transvaginal ultrasound in 2-week intervals from week 16 + 0 onwards in a tertiary-care center in Vienna. The main outcome measurement was preterm delivery prior to 32 + 0 weeks of gestation...
August 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28535404/placental-inflammation-and-its-relationship-to-cervicovaginal-fetal-fibronectin-in-preterm-birth
#13
Laura van der Krogt, Alexandra E Ridout, Paul T Seed, Andrew H Shennan
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...
July 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28502186/effectiveness-of-dydrogesterone-17-oh-progesterone-and-micronized-progesterone-in-prevention-of-preterm-birth-in-women-with-a-short-cervix
#14
Olga Pustotina
OBJECTIVE: To compare the efficacy of dydrogesterone, 17-OH progesterone (17OHP) and oral or vaginal micronized progesterone with cerclage for the prevention of preterm birth in women with a short cervix. METHODS: The study included 95 women with singleton gestation and cervical length (CL) ≤ 25 mm. Among these, 35 women were asymptomatic at 15-24 weeks and 60 had symptoms of threatened late miscarriage (LM) or preterm delivery (PD) at 15-32 weeks. Patients were randomized to receive dydrogesterone, 17OHP or oral/vaginal micronized progesterone; after one week of therapy 15 women underwent cerclage...
May 29, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28486361/universal-cervical-length-screening-and-antenatal-corticosteroid-timing
#15
Nicole Sahasrabudhe, Catherine Igel, Ghislaine C Echevarria, Peʼer Dar, Diana Wolfe, Peter S Bernstein, Robert Angert, Ashlesha Dayal, Patience Gallagher, Mara Rosner
OBJECTIVE: To evaluate the relationship between universal transvaginal screening for short cervical length in the second trimester and the timing of antenatal corticosteroids. METHODS: We performed a retrospective cohort study of patients with nonanomalous singleton gestations and spontaneous preterm birth between 24 and 34 weeks of gestation after the initiation of a universal transvaginal cervical length screening program between October 2012 and August 2015. Our primary outcome was antenatal corticosteroid administration to a delivery interval of fewer than 7 days...
June 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28484835/effectiveness-of-the-contemporary-treatment-of-preterm-labor-a-comparison-with-a-historical-cohort
#16
Philipp Wagner, Jiri Sonek, Harald Abele, Loefler Sarah, Markus Hoopmann, Sara Brucker, Qinging Wu, Karl Oliver Kagan
OBJECTIVE: To compare the effectiveness of contemporary treatment of preterm labor to a historical cohort. STUDY DESIGN: Retrospective matched case-control study to compare the outcomes of patients that were treated for preterm labor at the University Hospital of Tuebingen, Germany in 2014/2015 (current treatment cohort) and 2006/2007 (historical cohort). The study included women with singleton gestations who were admitted with the diagnosis of preterm labor between 24 + 0 and 34 + 0 weeks' gestation and a cervical length of ≤15 mm...
July 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28481445/optimising-fertility-outcomes-for-women-with-early-stage-cervical-cancer-when-less-is-more
#17
E Tingi, E J Crosbie, G Owens
No abstract text is available yet for this article.
May 8, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28461768/cervical-elastography-during-pregnancy-clinical-perspectives
#18
REVIEW
Malgorzata Swiatkowska-Freund, Krzysztof Preis
Uterine cervix is a part of the uterus responsible for maintaining pregnancy till term. As long as the cervix remains long and firm and its internal orifice (os) is closed, it can withstand enlargement of the uterine contents and resultant growing pressure. Mechanical properties of the cervix change during pregnancy; the cervix ripens prior to delivery, then effaces and dilates with contractions of the uterus. Ripening of the cervix can be assessed using the Bishop score and ultrasonographically determined length of the cervical canal and internal os...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28454755/pregnancy-outcomes-of-women-admitted-to-a-tertiary-care-centre-with-short-cervix
#19
Alison K Shea, Andrea N Simpson, Jon Barrett, Noor Ladhani, Ori Nevo
OBJECTIVE: Our aim was to characterize the management and outcome of women admitted to a tertiary high-risk obstetrics unit with a short cervix (≤25 mm), measured on transvaginal ultrasound (TVS), and to determine the latency period from diagnosis to delivery. METHODS: A retrospective chart review of women admitted to the High Risk Obstetrics Unit at Sunnybrook Health Sciences Centre between 2005-2011 with an ultrasound-identified short cervix was done. RESULTS: A total of 110 women admitted for a short cervix between 2005-2011 (N = 56 singletons; N = 54 twin gestations) met the inclusion criteria...
May 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28420506/prediction-of-spontaneous-preterm-delivery-in-asymptomatic-twin-pregnancies-using-cervical-length-and-granulocyte-elastase
#20
Kei Tanaka, Kenji Yamada, Miho Matsushima, Tomoko Izawa, Seishi Furukawa, Yoichi Kobayashi, Mitsutoshi Iwashita
OBJECTIVE: The purpose of this study was to evaluate sonographic cervical length (CL) and granulocyte elastase (GE) in cervical secretion as predictors of preterm delivery in asymptomatic twin pregnancies. MATERIALS AND METHODS: This study prospectively enrolled asymptomatic twin pregnancies with CL < 25 mm at 22-29 weeks of gestation. All women were hospitalized for preterm labor, and the cervical secretion was obtained for GE testing on admission. The results of CL measurement and GE testing were reviewed, and the relationship between each variables and preterm delivery prior to 34 weeks of gestation was assessed...
April 2017: Taiwanese Journal of Obstetrics & Gynecology
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