Search Results
Results 351 - 400 of 1917
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Nespolo Massimo - - 2007
It is shown that the twin index n calculated, according to Friedel, as a function of the indices (hkl) and [uvw] of the lattice plane and lattice direction defining the cell of the twin lattice applies only to twofold twins, i.e. twins where the twin element is of order 2. ...
Mains Lindsay M - - 2007
OBJECTIVE: To present serum androgen levels during pregnancy in a twin gestation complicated by maternal late onset 21-hydroxylase deficiency. DESIGN: Case report. SETTING: University teaching hospital reproductive endocrinology and infertility practice. PATIENT(S): A 27-year-old with nonclassic 21-hydroxylase deficiency and infertility, twin female fetuses, and elevated androgens. INTERVENTION(S): Steroid replacement. MAIN ...
Fanous Ayman H - - 2007
BACKGROUND: The relationship between personality and psychiatric illness is complex. It is not clear whether one directly causes the other. METHOD: In a population-based sample of male twins (n=3030), we attempted to predict major depression (MD) from neuroticism (N) and extraversion (E) and vice versa, to evaluate the causal, scar, ...
Gávai M - - 2007
Kartagener's syndrome is an inherited disease characterized by a triad of symptoms: bronchiectasis, situs inversus and sinusitis resulting from defective cilial motility. There are few reports in the literature regarding the optimum anesthetic technique in patients with Kartagener's syndrome. The main anesthetic considerations are related to the respiratory system and ...
Suh Young Hoon - - 2007
The purpose of this study was to determine the effect of twin-to-twin delivery interval on umbilical artery acid-base status of the second twin at birth. This was a retrospective cohort study of all live-born twins with measured acid-base status in umbilical arterial blood who were delivered after 34 weeks' gestation ...
Walker Susan P - - 2007
OBJECTIVE: To present the risk factors, prenatal and postnatal implications of monochorionic dyzygotic twinning. METHODS: We present a case of monochorionic twins diagnosed on first-trimester ultrasound following a 2-embryo transfer in vitro fertilisation pregnancy. Postnatal buccal smears performed as part of a twin research study revealed the twins to be ...
Righini A - - 2007
Monochorionic twin pregnancies complicated by the death of one twin are associated with substantial morbidity in the survivor, with a high risk of developing hypoxic-ischemic brain damage. In this report, we demonstrate how prenatal diffusion-weighted magnetic resonance imaging detected focal ischemic lesions in the survivor of a monochorionic twin pregnancy ...
Baschat Ahmet A - - 2007
Fetoscopic laser ablation of placental vascular anastomoses is an intrauterine therapy targeting the source of twin-to-twin transfusion syndrome (TTTS). Our patient had successful laser treatment, with resolution of stage II TTTS, suggesting closure of all significant anastomoses. After an uneventful pregnancy course, she elected a trial of labor. Following spontaneous ...
Klaasen R - - 2007
We present a 36-year-old woman in whom chronic myeloid leukaemia (CML) was diagnosed during a twin pregnancy. Because of hyperleucocytosis, we started leucapheresis also with the goal of gaining time for discussing treatment options. As this strategy was so effective and our patient was reluctant to take medication, we decided ...
De Groot Rosa - - 2007
Acardiac twin pregnancies are a rare but severe complication of monochorionic twinning, where the acardiac twin lacks cardiac function but nevertheless grows during pregnancy because it is perfused by the pump twin through a set of placental arterioarterial and venovenous anastomoses. Because the acardiac twin's body is only perfused by ...
Lee Pil Ryang - - 2007
BACKGROUND: Meconium peritonitis (MP) is a chemical peritonitis, and little is known about its natural history. Below we report MP in both fetuses from a twin pregnancy, with identical clinical ultrasonographic findings but a delay in presentation. CASE: A 31-year-old woman with a twin pregnancy was referred to our institution ...
Mutihir J T - - 2007
OBJECTIVES: The objectives of the study were to determine the incidence, maternal and foetal outcome of twin delivery in Jos, Nigeria. METHODOLOGY: All consecutive twin deliveries between August 2003 and November 2004 were studied. Data obtained at the time of delivery included maternal age, parity, gestational age at the time ...
Silva del Río N - - 2007
A data set of Holstein calving records from January 1996 to September 2004 comprising 4,103 herds with 2,304,278 calving events representing 1,164,233 cows and 96,069 twin births was extracted from Minnesota Dairy Herd Improvement Association archives to assess reported twinning trends and calf mortality across time. Overall, the reported twinning ...
Hrgovic Z - - 2007
We describe a case of dizygotic twin pregnancy which was referred to our centre because of a discordant anomaly of one of the twins. The ultrasound examination revealed a large extra-abdominal mass (liver and bowel) with micromelia, severe kyphoscoliosis and a short umbilical cord of the second dizygotic discordant twin. ...
Wieczorek Dagmar - - 2007
A great number of case reports on concordant and discordant twins with oculo-auriculo-vertebral spectrum (OAVS) suggest that there might be an association between reproductive abnormalities, twinning and OAVS. The etiology of OAVS is unknown, but may involve epigenetic dysregulation of the oocyte or early embryo. We collected data on fertility ...
Kohl T - - 2007
BACKGROUND: Adequate visualization of the placenta or umbilical cord during fetoscopic procedures in complicated monochorionic twin pregnancies may be difficult because of placental position and spatial constraints, as well as stained amniotic fluid. Partial amniotic carbon dioxide insufflation (PACI) has made it possible to overcome these obstacles in other fetoscopic ...
Anand Dhullipala - - 2007
Fetal death in a twin conception during second and third trimester is associated with increased risk of cerebral injury in the surviving twin. The aim of this study is to test the hypothesis that even early fetal losses as a 'vanishing' twin may be associated with an increased risk of ...
Dashe Jodi S - - 2007
OBJECTIVE: The purpose of this study was to compare middle cerebral artery (MCA) peak systolic velocity (PSV) values in monochorionic (MC) and dichorionic (DC) twin pregnancies. METHODS: This was a prospective cohort study in which MCA Doppler evaluation was performed in unselected twin pregnancies at time of routine sonography between ...
Deutsch Aaron B - - 2007
This case report demonstrates the use of ultrasound and doppler flow in the management of mono-amniotic monochorionic (M/M) twins. M/M twinning is a rare but significant event. It is associated with high rates of fetal mortality, most commonly cited at anywhere from between 30% and 70%. A common cause of ...
Cheang Chong-U - - 2007
OBJECTIVE: To compare the outcome of twin pregnancies, derived from IVF cycles, with and without fetal reduction. DESIGN: A retrospective cohort study. SETTING: The IVF Division of the Lee Women's Hospital, Taiwan. PATIENT(S): Seven hundred forty-two twin pregnancies, including 389 nonreduced pregnancies, 353 of which resulted from fetal reduction. INTERVENTION(S): ...
Acosta-Rojas R - - 2007
OBJECTIVE: To evaluate the impact of chorionicity on the perinatal outcomes of twin pregnancies complicated by twin-twin transfusion syndrome (TTS) or selective intrauterine growth restriction (sIUGR). METHOD: Pregnancies with 127 monochorionic (MC) and 109 dichorionic (DC) twins were followed up, and TTS and sIUGR incidence as well as morbidity and ...
Boxall Elizabeth - - 2007
BACKGROUND: Mother to infant transmission of hepatitis C virus (HCV) is dependent on significant HCV viraemia being present in the mother. As yet there are no appropriate interventions to prevent perinatal transmission. The investigation of twin pregnancies where only one twin is infected may reveal further information relating to transmission ...
Kennelly Máiréad M - - 2007
OBJECTIVES: To evaluate a strategy of daily biophysical profile (BPP) for pregnancies with small-for-gestational-age twins and with absent or reversed end diastolic flow (AREDF) in the umbilical artery of one twin and to assess the latency interval between detection and delivery in monochorionic (MC) and dichorionic (DC) twin pregnancy. METHODS: ...
Delisle M F - - 2007
OBJECTIVE: To assess if amniotic fluid alpha-fetoprotein (AFAFP) could be useful to determine if both sacs are sampled during an amniocentesis for twin pregnancies. METHOD: We reviewed all amniocenteses performed on twin pregnancies over a 5-year period. Inclusion criteria were restricted to pregnancies where both karyotypes and AFAFP were available ...
Lehn Hanne - - 2007
OBJECTIVE: To study familial and nonfamilial environmental influences on attention problems and attention-deficit/hyperactivity disorder (ADHD) in monozygotic twins discordant and concordant-high and low for these traits. METHOD: Ninety-five twin pairs from The Netherlands Twin Register were selected. Longitudinal survey data were collected at 1, 2, 3, 5, 7, 10, and ...
Szymborska Tatiana - - 2007
A group of 59 twin pregnant women who gave birth at the Department of Obstetrics and Gynecology Central Clinical Hospital of Ministry of Interior and Administration in Warsaw in the years 2005-2006. The patients have been divided into four groups: spontaneous twin pregnant women (n=16), twin pregnant women after in- ...
Tandberg Anne - - 2007
BACKGROUND: The incidence of twin pregnancies is increasing in industrialized countries, including Norway. In the present nationwide study from Norway, we aimed at evaluating the effect of assisted reproductive technologies and delayed childbearing age on this epidemic rise. MATERIAL AND METHOD: Altogether 2.19 million pregnancies, including 27,849 twin pairs and ...
Coolen Jillian - - 2007
Fetus-in-fetu is a rare form of monozygotic diamniotic twin pregnancy in which one fetus is enclosed within its twin (Khadaroo et al., 2000). This case report highlights the use of prenatal MRI to confirm prenatal diagnosis of an intra-abdominal FIF to aid obstetricians, neonatologists, and pediatric general surgeons in perinatal ...
Hidaka Nobuhiro - - 2007
AIMS: To review the course of monochorionic (MC) twin gestations in which one or both fetuses were diagnosed with congenital heart disease (CHD) and to identify clinical characteristics regarding the related intrauterine environmental factors particularly associated with non-twin-twin transfusion syndrome (TTTS). METHODS: This study is a review of a two-center ...
Chang Yao-Lung - - 2007
We report a patient with a dichorionic triplet pregnancy complicated by Quintero stage IV twin-twin transfusion syndrome, presenting with hypertension and severe edema at 19 weeks of gestation. Sonography revealed one set of female twins with poly-/oligohydramnios sequence, the recipient twin showing hydropic changes, and another male fetus with normal ...
Suzuki Shunji - - 2007
OBJECTIVE: We examined the relation between first-trimester crown-rump length (CRL) discordance and birth weight discordance in dichorionic twin pregnancies conceived by assisted reproductive technology (ART). METHODS: We examined 101 nulliparous dichorionic twin pregnancies producing male-male or female-female infants conceived spontaneously (n = 38) or following in vitro fertilization and embryo ...
Appleton Cláudia - - 2007
OBJECTIVE: The aim of our study is to evaluate the clinical importance of near term weight discordance in twin pregnancies with both appropriate or with one small for gestational age newborn (AGA and SGA, respectively). METHODS: We retrospectively studied 230 twin pregnancies that ended at >or=34 weeks' gestation. Discordance was ...
Skupski Daniel - - 2007
OBJECTIVE: To present an ethically justified decision-making pathway to use in the evaluation and treatment of pregnant women whose fetuses have twin-to-twin transfusion syndrome (TTTS). METHODS: The ethical principles of beneficence, autonomy and professional integrity were applied to the diagnostic and treatment options for TTTS. RESULTS: An algorithm was developed ...
Chang Yao-Lung - - 2007
Chorioamniotic membrane separation (CMS) means that the close attachment of amniotic and chorionic membranes is disrupted, usually following the traumatic entry into the amniotic cavity including fetal therapy. We report a case of twin-twin transfusion syndrome receiving fetoscopic guide laser therapy at gestational age of 19 weeks with partial CMS ...
Klearhou N - - 2007
We report a case of diamniotic, dichorionic pregnancy presented at 24 weeks with premature rupture of the first amnionic sac. Seven days later, premature labour and delivery of the first twin took place, with unfortunate outcome. The second twin was left in utero. The management included combination of tocolytics, antibiotics ...
Baijal Noopur - - 2007
Documentation of superfoetation is extremely rare in humans., The younger foetus has invariably been small for gestational age (estimated from the date of the last menstrual bleed) in all the cases reported in the literature. We report a case where the younger twin was of appropriate size for gestation. The ...
Gielen Marij M Nutrition and Toxicology Research Institute Maastricht (NUTRIM), Department of Population Genetics, Genomics and Bioinformatics, Maastricht University, Maastricht, The Netherlands. - - 2007
The aim of this study was to present customized twin-specific birth weight standards. The relative contribution of gestational age, maternal factors, twin factors and placental factors to the birth weight was evaluated in a multivariate approach. Perinatal data were obtained from 10,177 live-born twins from the East Flanders Prospective Twin ...
Chen Xi-Kuan XK OMNI Research Group, Clinical Epidemiology Program, Ottawa Health Research Institute, University of Ottawa, Ottawa, Ontario, - - 2007
To compare the effects of new-onset hypertension (NOH) in late pregnancy on fetal growth in singletons and twins. A retrospective cohort study was conducted to evaluate the effect of NOH on fetal growth in 17, 720, 900 singletons and 463, 104 twins born in the United States between 1995 and ...
Gessessew Amanuel A Department of Gynecology, Mekele Hospoital, P.O. Box 22, Mekele, - - 2007
Twin pregnancy is associated with increased risk of maternal and neonatal complications. Little is reported from Ethiopia and there is lack of nationally representative data. To assess the frequency and provide information regarding the characteristics of twin pregnancy. This is a descriptive retrospective study (April 1, 1993-March 30, 2003) conducted ...
Gyamfi Cynthia - - 2007
A retrospective review of twin gestations was undertaken to evaluate whether routine cervical lengths (CLs) in such instances change pregnancy outcome. Data were collected from the ultrasound database and chart review. Exclusion criteria included twins reduced to singletons, twins not delivering at our institution, and incomplete information. Twin gestations with ...
Sung Joohon - - 2006
"Healthy Twin" is a twin family study extension of the existing Korean Twin-Family Register. Healthy Twin recruits adult like-sex twins over the age of 30 and their adult family members. Healthy Twin protocols are primarily tailored to the study of the quantitative trait loci of complex traits as well as ...
Rasmussen Finn - - 2006
The Swedish Young Male Twins Study is a population-based longitudinal twin study founded in 1997 through record-linkages of several national registers. Details on pregnancy and birth were obtained from the Swedish Medical Birth Register and used to identify 3566 male twins (1783 pairs) born in Sweden between 1973 and 1979 ...
Ward Platt Martin P - - 2006
From 1998 the population-based North of England Multiple Pregnancy Register (MPR) has collected data on all multiple pregnancies in the region from the earliest point of ascertainment in the pregnancy. This article describes the development of the MPR and the findings of the first 5 years of data collection. Mothers ...
Lichtenstein Paul - - 2006
The Swedish Twin Registry was first established in the late 1950s. Today it includes more than 170,000 twins--in principle, all twins born in Sweden since 1886. In this article we describe some ongoing and recently completed projects based on the registry. In particular, we describe recent efforts to screen all ...
Krone Ruth E - - 2006
In this article we present the protocol of the Birmingham Registry for Twin Heritability Studies (BiRTHS), which aims to establish a long-term prospective twin registry with twins identified from the antenatal period and subjected to detailed follow-up. We plan to investigate the concordance in anthropometrics and early childhood phenotypes between ...
Kandasamy Y - - 2006
Intracranial pathology is a common and important complication in extremely low birth weight babies. Lenticulostriate vasculopathy (LSV) is an abnormal finding on cranial ultrasounds of sick babies and has been associated with congenital infection, chromosomal aberration and twin-to-twin transfusion. We describe a previously unreported situation of LSV being detected in ...
Fagnani Corrado - - 2006
Since its start as a database of "possible twins", the Italian Twin Register has developed remarkably in terms of twin approach and recruitment, data-management tools, the cohorts enrolled, and the breadth of information gathered, making the Italian Twin Register a valuable resource for genetic epidemiological research. The Italian Twin Register ...
Siribaddana Sisira Hemananda - - 2006
The Sri Lankan Twin Registry began as a volunteer register in 1997. Previously, we have shown door-to-door surveys as the best option to build a population-based twin register of older, adult twins. Our aim was to build a population-based twin register in the Colombo district and use it for twin ...
Coccaro Emil F EF Clinical Neuroscience & Psychopharmacology Research Unit, Department of Psychiatry, The University of Chicago, 5841 S. Maryland Avenue, Chicago, IL 60637, USA. - - 2006
The current article describes the creation and composition of the PennTwins Cohort and provides details on the demographic characteristics of the sample. The PennTwins Cohort was developed using a population-based method of ascertainment and currently has 9401 28- to 47-year-old twins, including 2225 confirmed twin pairs and 4951 twins whose ...
Asklund Camilla - - 2007
BACKGROUND: Recent studies found an association between a long waiting time to pregnancy (TTP) and reduced probability of twinning and a reduced dizygotic (DZ) twinning rate in subfertile men. However, it remains unsolved whether semen quality is associated with twin offspring. We therefore studied the semen quality in a group ...
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