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Twin pregnancies

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https://www.readbyqxmd.com/read/28918426/aortic-isthmus-flow-recording-predicts-the-outcome-of-the-recipient-twin-after-laser-coagulation-in-twin-twin-transfusion-syndrome
#1
France Leduc, Amélie Delabaere, Roxanne Gendron, Florent Fuchs, Sandrine Wavrant, Marie-Josée Raboisson, Jean-Claude Fouron, François Audibert
INTRODUCTION: The objective was to assess the prognostic value of the systolic flow through the aortic isthmus in monochorionic pregnancies complicated by twin-twin transfusion syndrome (TTTS) treated by placental laser ablation. MATERIAL AND METHODS: Fetal echocardiography and outcome data of 105 cases of TTTS treated by laser photocoagulation of placental anastomoses were reviewed. Hemodynamic parameters were collected before and after treatment. The isthmic systolic index (ISI) was calculated as the peak systolic velocity/systolic nadir ratio...
September 16, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28915120/ultrasound-study-of-fetal-movements-in-singleton-and-twin-pregnancies-at-12-19-weeks
#2
Mohamed Ahmed Mostafa AboEllail, Kenji Kanenishi, Nobuhiro Mori, Junko Noguchi, Genzo Marumo, Toshiyuki Hata
OBJECTIVE: To evaluate fetal behavioral differences between singleton and twin fetuses before 20 weeks of gestation using four-dimensional (4D) ultrasound. METHODS: 4D ultrasound was used to examine fetal movements in 58 singleton and 48 twin normal fetuses at 12-19 weeks. The frequencies of eight fetal movements were assessed through 15-min recordings. The fetuses were divided into two gestational age groups (12-13 and 14-19 weeks) to evaluate the changes with advancing gestation in twin versus singleton fetuses...
September 15, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28913142/day-3-embryo-transfer-versus-day-5-blastocyst-transfers-a-prospective-randomized-controlled-trial
#3
Şafak Hatırnaz, Mine Kanat Pektaş
OBJECTIVE: This study aimed to show whether transferring day 5 embryos resulted in higher implantation and pregnancy rates than transferring day 3 embryos in Turkish women undergoing an intracytoplasmic sperm injection (ICSI) cycle. MATERIALS AND METHODS: A total of 190 women who had ICSI after retrieval of more than four oocytes on the day of fertilization check were randomly assigned to undergo embryo transfer either on day 3 or day 5. RESULTS: Day 3 and day 5 transfers were statistically similar with respect to the age of woman (p=0...
June 2017: Turk J Obstet Gynecol
https://www.readbyqxmd.com/read/28912922/obstetric-outcomes-of-twin-pregnancies-in-japanese-women-aged-40-and-older
#4
Shunji Suzuki
BACKGROUND: The aim of this study was to compare the obstetric outcomes of twin pregnancies between Japanese women aged ≥ 40 years and their younger counterparts aged 25 - 29. METHODS: This was a retrospective study of twin pregnancies managed at Japanese Red Cross Katsushika Maternity Hospital between 2002 and 2016. Women aged 40 and older at delivery (n = 117) were compared with women aged 25 - 29 at delivery (n = 536). RESULTS: Although the women ≥ 40 years old were more likely to have increased risks of HELLP (hemolytic, elevated liver enzymes and low platelet) syndrome and very low birth weight neonates, there were no measurable differences in obstetric outcomes such as hypertensive disorders, premature delivery and neonatal asphyxia between the two groups...
October 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28912068/angiogenic-imbalance-and-diminished-matrix-metalloproteinase-2-and-9-underlie-regional-decreases-in-uteroplacental-vascularization-and-feto-placental-growth-in-hypertensive-pregnancy
#5
Carlos A Dias-Junior, Juanjuan Chen, Ning Cui, Charles L Chiang, Minglin Zhu, Zongli Ren, Jose S Possomato-Vieira, Raouf A Khalil
Preeclampsia is a form of hypertension-in-pregnancy (HTN-Preg) with unclear mechanism. Generalized reduction of uterine perfusion pressure (RUPP) could be an initiating event leading to uteroplacental ischemia, angiogenic imbalance, and HTN-Preg. Additional regional differences in uteroplacental blood flow could further affect the pregnancy outcome and increase the risk of preeclampsia in twin or multiple pregnancy, but the mechanisms involved are unclear. To test the hypothesis that regional differences in angiogenic balance and matrix metalloproteinases (MMPs) underlie regional uteroplacental vascularization and feto-placental development, we compared fetal and placental growth, and placental and myoendometrial vascularization in the proximal, middle and distal regions of the uterus (in relation to the iliac bifurcation) in normal pregnant (Preg) and RUPP rats...
September 11, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28906394/growth-discordance-of-monoamniotic-twin-because-of-difference-of-cords-diameter-in-forked-umbilical-cord-case-report
#6
Yongbing Guo, Yu Sun, Huixia Yang
A case of monochorionic-monoamniotic (MCMA) twin pregnancy with growth discordance because of difference of cord diameter in forked umbilical cord is reported.MCMA twins were diagnosed at 12 weeks of gestation and twin growth discordance was considered during the follow-up twice-weekly visits to the ultrasound and prenatal care units. The pregnancy was terminated at 34 weeks. Two live female babies weighing 2510 g and 1940 g were delivered. Examination of placenta and umbilical cords after birth showed that the 2 cords merged into a conjoint cord 1 cm from insertion to the placenta (forked umbilical cord)...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28899594/delayed-detection-of-spontaneous-bilateral-tubal-ectopic-pregnancies-after-methotrexate-treatment
#7
Nicole E Brown, Shereen A Singer, Joe Suyama
BACKGROUND: Bilateral tubal ectopic pregnancies are a rare subset of ectopic pregnancy that can pose a diagnostic dilemma for clinicians. There is no distinct clinical presentation for bilateral tubal ectopic pregnancies, although they are typically associated with assistive reproductive techniques. In addition, there is no single diagnostic feature to help clinicians delineate bilateral tubal ectopic pregnancies from other types of ectopic pregnancy prior to passing the discriminatory zone (such as heterotopic pregnancy or twin ectopic [two gestational sacs in one tube])...
September 9, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28898871/placental-component-and-pregnancy-outcome-in-singleton-versus-twin-pregnancies-complicated-by-preeclampsia
#8
Eran Weiner, Ohad Feldstein, Letizia Schreiber, Ehud Grinstein, Elad Barber, Ann Dekalo, Jacob Bar, Michal Kovo
OBJECTIVE: To compare placental histopathological lesions and pregnancy outcomes in singleton and twin pregnancies complicated by preeclampsia (PE). METHODS: Maternal characteristics, neonatal outcomes, and placental histopathology reports of pregnancies complicated by PE between January 2008 and October 2016 were reviewed. Results were compared between singletons (singleton group) and dichorionic-diamniotic twins (twin group). Placental lesions were classified into maternal and fetal vascular supply lesions...
September 13, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28889776/risk-of-spontaneous-preterm-birth-in-ivf-conceived-twin-pregnancies
#9
Gabriele Saccone, Fabrizio Zullo, Amanda Roman, Andrew Ward, Giuseppe Maruotti, Pasquale Martinelli, Vincenzo Berghella
OBJECTIVE: To compare the mean transvaginal ultrasound (TVU) cervical length (CL) at midtrimester in screening for preterm birth in in vitro (IVF)-conceived twin pregnancies versus spontaneously-conceived twin pregnancies. METHODS: This was a retrospective cohort study. Potential study subjects were identified at the time of a routine second trimester fetal ultrasound exam at 18 0/7 - 23 6/7-week gestation. All women with twin diamniotic pregnancies screened with a singlet TVU CL for this trial were included...
September 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28889767/delayed-interval-delivery-in-twin-pregnancies-report-of-three-cases-and-literature-review
#10
Marta Benito Vielba, Carlos De Bonrostro Torralba, Victoria Pallarés Arnal, Rebeca Herrero Serrano, Eva Lucía Tejero Cabrejas, Jose Manuel Campillos Maza
INTRODUCTION: Delayed delivery is sometimes performed in selected multifetal pregnancies when the first twin birth occurs inevitably. The aim of this procedure is to improve the prognosis and decrease the morbidity and mortality of the second twin. We report three cases of delayed-interval delivery of dichorionic-diamniotic twin pregnancies assisted in our center between 2015 and 2017. After the first twin delivery, the second twin was left in utero and the patient received tocolytic therapy and antibiotics...
September 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28877059/choriocarcinoma-in-women-analysis-of-a-case-series-with-genotyping
#11
Johanna Savage, Emily Adams, Emanuela Veras, Kathleen M Murphy, Brigitte M Ronnett
Choriocarcinoma is an uncommon malignant neoplasm, which can be either gestational or nongestational in origin. Distinction of these subtypes has prognostic and therapeutic implications. Twenty-two tumors were genotyped using polymerase chain reaction amplification of 15 short tandem repeat loci and the amelogenin locus (XY determination). DNA patterns from tumor and maternal tissue, as well as villous tissue from any available prior or concurrent gestation, were compared, to determine gestational versus nongestational nature (containing vs...
September 4, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28873067/association-of-histological-chorioamnionitis-and-magnesium-sulfate-treatment-in-singleton-and-dichorionic-twin-pregnancies-with-preterm-premature-rupture-of-membranes-preliminary-observations
#12
James M O'Brien, Jacobo L Santolaya, Kristy Palomares, David Blitzer, Joaquin Santolaya-Forgas
OBJECTIVE: To evaluate the possible association between antenatal magnesium sulfate treatment with histological chorioamnionitis in patients with singleton or dichorionic twins that had preterm premature rupture of the membranes. METHODS: This was an observational study performed in patients admitted to the hospital with rupture of membranes before 34 weeks' gestation. The primary outcome was histological chorioamnionitis and the primary predictor was antenatal magnesium sulfate treatment...
September 5, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28872650/obstetriskt-ultraljud-och-prenatal-diagnostik-i-f%C3%A3-rsta-trimestern-tidig-uppt%C3%A3-ckt-av-kromosomavvikelser-missbildningar-och-graviditetskomplikationer-ger-f%C3%A3-rdelar
#13
Peter Malcus, Peter Conner
Prenatal first trimester fetal diagnosis in Sweden today and in the future The combined first trimester test for detection of trisomy 21 has been available in Sweden the last 10 years but the uptake among pregnant women is still less than 50% and varies largely between different regions. The non-invasive prenatal test (NIPT) has been introduced and is currently recommended to be used as a secondary test only in those women who have an increased risk following the combined test. With falling costs for NIPT and a general offer of this test as a primary screening tool to all women there is concern that the first trimester ultrasound scan will be abandoned...
August 29, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28864001/associations-between-the-levels-of-soluble-pro-renin-receptor-in-maternal-and-umbilical-cord-blood-and-hypertensive-disorder-of-pregnancy
#14
Yukiko Mikami, Yasushi Takai, Tatsuya Narita, Sumiko Era, Yoshihisa Ono, Masahiro Saitoh, Kazunori Baba, Kikumi Matsuoka, Hiroyuki Seki
INTRODUCTION: The prorenin (PR) receptor [(P)RR] contributes to the regulation of the tissue renin-angiotensin system (RAS) and Wnt signaling, which is involved in embryogenesis and the pathological progression of malignant tumors and diabetes mellitus. Placental (P)RR is significantly upregulated in placental tissues from preeclamptic women. However, because it cannot be examined during pregnancy, the chronological relationship between the acceleration of tissue RAS and the disease state of hypertensive disorder of pregnancy (HDP) has not been reported...
September 2017: Placenta
https://www.readbyqxmd.com/read/28859779/no-262-prenatal-screening-for-and-diagnosis-of-aneuploidy-in-twin-pregnancies
#15
François Audibert, Alain Gagnon
OBJECTIVE: To provide a Canadian consensus document with recommendations on prenatal screening for and diagnosis of fetal aneuploidy (e.g., Down syndrome and trisomy 18) in twin pregnancies. OPTIONS: The process of prenatal screening and diagnosis in twin pregnancies is complex. This document reviews the options available to pregnant women and the challenges specific to screening and diagnosis in a twin pregnancy. OUTCOMES: Clinicians will be better informed about the accuracy of different screening options in twin pregnancies and about techniques of invasive prenatal diagnosis in twins...
September 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28840194/rectus-muscle-reapproximation-at-cesarean-delivery-and-postoperative-pain-a-randomized-controlled-trial
#16
Deirdre J Lyell, Mariam Naqvi, Amy Wong, Renata Urban, Brendan Carvalho
Objective  Rectus muscle reapproximation at cesarean delivery (CD) is performed frequently by some obstetricians; however, the effect on postoperative pain is unclear. To this end, we investigated whether rectus muscle reapproximation increases postoperative pain. Materials and Methods  This is a prospective, double-blind, randomized controlled trial of women undergoing primary CD with singleton or twin pregnancy at >35 weeks' gestation. Women were randomized to rectus muscle reapproximation with three interrupted sutures or no reapproximation...
July 2017: Surg J (N Y)
https://www.readbyqxmd.com/read/28840046/uterine-rupture-at-21-weeks-in-twin-pregnancy-with-ttts-and-previous-c-section
#17
Gieta Bhikha-Kori, Marieke Sueters, Johanna M Middeldorp
Uterine rupture is a health problem in every country. The diagnosis is not always obvious and fetal and maternal morbidity and mortality can be high.
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28833715/exploring-the-association-between-genetic-and-environmental-factors-and-molar-incisor-hypomineralization-evidence-from-a-twin-study
#18
Rafael José Pio Barbosa Teixeira, Natália Silva Andrade, Lisanca Carvalho Cavalcante Queiroz, Fausto Medeiros Mendes, Marcoeli Silva Moura, Lúcia de Fátima Almeida de Deus Moura, Marina Deus Moura Lima
BACKGROUND: The etiology of molar-incisor hypomineralization (MIH) remains unknown. Studies indicate that it is multifactorial, and that genetic and environmental factors are involved. Research with twins provides important subsidy to investigate the Influence of genetics and environmental factors that act during pregnancy on the etiology of alterations. AIM: This cross-sectional study evaluated the agreement of molar incisor hypomineralization (MIH) between monozygotic and dizygotic twin pairs and the association with environmental factors...
August 22, 2017: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/28833712/cell-free-fetal-dna-analysis-in-maternal-plasma-as-a-screening-test-for-trisomy-21-18-and-13-in-twin-pregnancies
#19
Grégoire Le Conte, Alexandra Letourneau, Jacques Jani, Pascale Kleinfinger, Laurence Lohmann, Jean-Marc Costa, Alexandra Benachi
OBJECTIVES: To evaluate the utility of noninvasive prenatal testing using cell-free circulating fetal DNA (cfDNA) in screening for the three main autosomal fetal trisomies in twin pregnancies. METHODS: CfDNA testing was offered to 492 patients with twin pregnancies without ultrasound anomalies as a first-line screening test or after serum screening in clinical practice. Data were collected prospectively and a retrospective analysis was performed. CfDNA analysis was performed by massively parallel sequencing...
August 18, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28832466/outcomes-of-twin-pregnancies-in-women-45-years-of-age-or-older
#20
Amir Almasi-Hashiani, Erfan Ayubi, Saeid Safiri
No abstract text is available yet for this article.
September 2017: Obstetrics and Gynecology
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