Search Results
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Alfirevic Z - - 1996
Amniocentesis test results are usually available only after 18 weeks gestation. Chorion villus sampling (CVS) may be performed transabdominally or transvaginally, usually between 10 and 12 weeks gestation. The objective of this review was to assess the safety and accuracy of chorion villus sampling compared to amniocentesis. We searched the ...
Weig S G - - 1995
The prenatal histories, clinical courses, and neuroradiographic studies of 8 infants who had survived the in utero demise of a homozygous co-twin were reviewed. Three distinct modes of clinical presentation were found: (1) severe neonatal encephalopathy with seizures; (2) a more benign neonatal course with onset of seizures and profound ...
Scardo J A - - 1995
OBJECTIVE: Our purpose was to determine the predictive accuracy of a composite ultrasonographic evaluation for chorionicity, amnionicity, and zygosity in a consecutive series of twins. STUDY DESIGN: One hundred ten consecutive twins were seen for ultrasonography beginning January 1992. Chorionicity, amnionicity, and, zygosity were prospectively assessed with a composite of ...
Madrigal L - - 1995
The reproductive performance of mothers of twins is of interest from an evolutionary perspective. Because mothers of twins have the potential of leaving a greater number of offspring, they could be favored by natural selection. At the same time, twin pregnancies are known to be associated with higher pre- and ...
Olatunbosun O A - - 1995
Prolonged interdelivery periods in preterm twin and triplet gestations have resulted in a good outcome for the fetus(es) remaining in utero. This is the second reported case of delayed delivery intervals in quadruplets who were born on 3 separate days. We report on a set of quadruplets following gonadotropin induction ...
Xu J - - 1995
Inbreeding depression was observed in the commercial button mushroom, Agaricus bisporus, by examining two laboratory populations. The outbred population consisted of 20 compatible pairings, 10 homokaryons with each of the homokaryons Ag1-1 and Ag89-65. The inbred population consisted of 104 backcrosses (among which 52 were expected to be sexually compatible) ...
Root M V - - 1995
Reproductive performance in a feline research colony of 14 queens is reported. Average estrous length in 38 cycles was 5.8 +/- 3.3 days, with a range of two to 19 days. Estrous length in 23 bred cycles was not shorter (p greater than 0.05) than in 15 nonbred cycles, suggesting ...
Saacks C B - - 1995
OBJECTIVE: Our purpose was to explore the management and outcomes of twin pregnancies over 40 years (1952 to 1993) within a single academic health center. STUDY DESIGN: According to a retrospective cohort design, twin pregnancies were collected and the following variables were analyzed: maternal age, parity, gestational age, birth weight, ...
Aaby P - - 1995
Twins have been registered prospectively for 12-22 years in 42 small villages in the Bandafassi area of Eastern Senegal. We studied 98 pairs of twins to test whether twins in opposite-sex pairs have higher postneonatal mortality than same-sex twins. Neonatal mortality for twins was 41.3%; mortality for infants and for ...
Hur Y M - - 1995
It is generally believed that in Caucasian populations the rate of monozygotic (MZ) twinning is approximately equal to the rate of like-sex dizygotic (DZ) twinning so that representative samples of like-sex twins should contain approximately equal numbers of MZ and DZ twins. Recent evidence suggests, however, that the rate of ...
Edwards M S - - 1995
The purpose of this study was to evaluate the accuracy of antenatal ultrasonography in the detection of fetal anomalies among twin gestations cared for in a specialized antepartum twin clinic. A retrospective study was performed of 245 consecutive twin gestations followed in our twin clinic. The sensitivity, specificity and diagnostic ...
Groen R J - - 1995
A case of monochorionic/monoamnionic twin with discordant occipital developmental malformations is presented. One female twin appeared to have an occipital meningocele with cerebellar aplasia and died immediately after birth. The other twin presented with signs and symptoms of raised intracranial pressure at the age of 7 months. Severe hydrocephalus was ...
Van der Zalm J E - - 1995
This article examines the attaching and detaching experience of a mother encountering the perinatal death of a twin. Her experience is related to the relevant theoretical and research literature pertaining to prebirth and postbirth maternal-infant attachment and detachment (grieving). Literature for both single infants and twins is considered. The experience ...
Page W F - - 1995
Veterans now make up nearly two-thirds of U.S. males aged 65 and older, and thus medical research in the male geriatric population is largely concerned with veterans, whose mortality experience assumes greater importance as they age. Department of Veterans Affairs (VA) records provide an effective and efficient means of gathering ...
Gleicher N - - 1995
Paradoxically, the attitude of infertility patients towards multiple births has never been investigated. We therefore generated a survey by questionnaire, which was sent to 3800 consecutive unselected couples with infertility problems: 582 responses were received (15% response rate) and analysed. The percentage distribution of the responses to 21 questions, addressing ...
Solomon B A - - 1995
Neonatal lupus erythematosus (NLE) is an uncommon disease that is manifested by cutaneous lesions, cardiac conduction defects, or both, that appear in utero or shortly after birth. In approximately 95% of patients, anti-Ro antibody (Ro[SS-A]) has been identified and has become the serologic marker for NLE. Since 1987 there have ...
Jaya D S - - 1995
A study on twin births was conducted from May 1993 to April 1994 at S.A.T. Hospital, Thiruvananthapuram. The twinning rate in this period was found as 17.33 per 1000 births. 79.6% babies in the twin pairs were of like sex and 20.4% were of unlike sex. The incidence of low ...
Hjelt K - - 1995
After detection of a few clinical cases of methaemoglobinaemia (methb) in our NICU, a prospective clinical study was undertaken to determine the extent of the problem and to identify the causes. Consequently, during the following 8 months all haemoglobin tests included simultaneous measurements of methb on an OSM 3 hemoximeter ...
Nelson K B - - 1995
In order to examine neurological outcome in twins, a multi-centre prospective cohort study of infants was used. Women entered at the first prenatal visit, with follow-up of offspring to the age of 7 years. Outcome measures were death, cerebral palsy, seizure disorders including neonatal, febrile or nonfebrile, and intelligence quotient. ...
Gardner M O - - 1995
OBJECTIVE: To define the etiology of preterm twin births and determine the contribution of twin births to preterm birth and related morbidity and mortality. METHODS: The March of Dimes Multicenter Prematurity and Prevention Study included a total of 33,873 women who delivered between 1982-1986, 432 (1.3%) of which delivered twins. ...
Zagelbaum B M - - 1995
BACKGROUND: Few cases of corneal perforation in a premature infant have been described in the literature. METHODS: Identical twins were born at 30-weeks gestation. One twin developed a corneal epithelial defect, infiltration, and perforation with extrusion of intraocular contents, requiring an emergency penetrating keratoplasty. The second twin developed a progressive ...
Burton B K - - 1995
The incidence of haemangiomas was ascertained by questionnaire in infants born to 578 consecutive CVS patients and 445 consecutive mid-trimester amniocentesis patients seen at a single institution between 1 January 1989 and 31 May 1991. The incidence of 7.4 per cent reported in the amniocentesis group was comparable to previous ...
Fellows R R - - 1995
Discordant twins may be at increased risk for retinopathy of prematurity (ROP) because of factors related to their unequal growth. Discordancy is defined as a difference of 15% or more in the birth weights of the two infants. We examined the data in 26 sets of discordant twins from six ...
Cheung V Y - - 1995
OBJECTIVE: The purpose of this study was to determine the effect of discordant fetal growth on subsequent perinatal and neonatal outcome for different degrees of birth weight discordance in preterm twin gestations. STUDY DESIGN: One hundred twenty-two live born twin sets delivered between 25 and 34 completed weeks' gestation were ...
Christensen K - - 1995
OBJECTIVE: To test the validity of the fetal origins hypothesis and the classic twin method. DESIGN: Follow up study of pairs of same sex twins in which both twins survived to age 6. SETTING: Denmark. SUBJECTS: 8495 twin individuals born 1870-1900, followed through to 31 December 1991. MAIN OUTCOME MEASURES: ...
Jewell S E - - 1995
OBJECTIVE: To determine the nature and possible reasons for the increasing trend in plural births in the United States during the 1980s. METHODS: We performed a descriptive analysis of births in the United States for five racial and ethnic groups from 1980-1989, using the United States vital records natality files. ...
Schaefer L C - - 1995
The value in studying Dr. Harry Benjamin's first gender dysphoria patients is in learning how they described themselves--without any books to read, without any other source of information, assuming that he or she was alone and unlike anyone else in the world--and before hardly any literature on the subject had ...
Mahmoud H H - - 1995
We report detailed immunological, cytogenetic and molecular evidence for complete identity of the leukemic cell populations in monozygotic female twins with concordant leukemia diagnosed at two months of age. Both infants had early pre-B acute lymphoblastic leukemia with the (11;19)(q23;p13) chromosomal translocation. A common clonal origin of leukemia in these ...
Paes B A - - 1995
A male infant, one of monozygotic twins, was born with absence of fibulae, ectrodactyly of the right hand and both feet, with accompanying deficiencies. This second case report of a discordant fibular aplasia developmental field defect occurring in monozygotic twins, although likely sporadic, is interesting because of the similar pattern ...
Beiguelman B - - 1995
The annual variation of the sex ratio (SR) of 1385 twin births was analyzed and compared to that of 85909 singletons. These births referred not only to live births but also to stillbirths in two southeastern Brazilian maternity hospitals from 1984 to 1993. While the annual variation of the SR ...
Chatterjee S - - 1995
Thirty pairs of monozygotic (MZ) and 20 pairs of dizygotic (DZ) twins, of both sexes, were studied to estimate the role of genetic and environmental factors determining fitness measurements comprising vital capacity (VC), vertical jump, flexibility, agility, and PFI score. Intra-pair variances for VC, vertical jump, and heart rate were ...
Sheets J W - - 1995
In 1991 a triplet maternity of same-sex (FFF) occurred in a depopulated community of Argyll, Scotland, with a history of excessive, same-sex twinning. Due to a stillbirth and its confidentiality, the maternity was recorded as a twin birth. Using public registers may result in underestimation of rates for higher multiple ...
Carmelli D - - 1995
The role of genetic and shared environmental influences in the association of alcohol with mortality was studied by using the National Academy of Sciences-National Research Council World War II-veteran male twin registry. An epidemiologic questionnaire administered from 1967 through 1969 permitted identification of twin pairs discordant for alcohol consumption. The ...
Yokoyama Y - - 1995
This study investigated the degree of risk of handicap in twins, triplets, quadruplets and quintuplets and associated factors, and examined the clustering tendency of handicaps. The sample was recruited from the Kinki University Twin and Higher Order Multiple Birth Registry. This panel consisted of 705 pairs of twins (1410 twins), ...
Nonaka K - - 1995
To study whether apparently more fecund women having delivered twins at first birth have traits of higher twin-proneness, we performed a retrospective cohort study on population-based historical vital records of the 17-18th century French Canadian immigrants and their descendants under natural fertility conditions. Among 24896 mothers who had at least ...
Davis J O - - 1995
While twin concordances for schizophrenia have been used to estimate heritability and to develop genetic models, concordances in subtypes of monozygotic (MZ) twins can also be used to investigate the influence of prenatal development in the etiology of mental illness. We used within-pair variability and mirroring of fingerprints to estimate ...
Källén B - - 1994
The goal of this study, based on information collected from eight congenital malformation registry programs around the world, was to analyze sex and twinning of affected infants and fetuses, according to type of neural tube defect (NTD) and other variables. The type of defect and its location, whether it occurred ...
Wang Y M - - 1994
Dizygotic twin babies with a gestational age of 35 weeks were born with birth weights of 1800 gm and 1200 gm respectively. One infant had gangrene of her right foot at the age of eleven days. The other contracted urinary tract infections twice, at the ages of one month and ...
Brian-D Adinma J I - - 1994
The incidence of twin birth among the Nigerian Igbos from this study is 1 in 36.2 or 27.6 per 1000. The commonest pair presentation was vertex/vertex and the incidence of pre-term delivery was 27.8%, six times higher than in single controls 4.5%. The commonest mode of delivery was spontaneous vertex. ...
Antalova A - - 1994
The power spectrum was calculated for the time series of the LDE-type flare occurrence during the last three solar cycles (the 20-th, the 21-st and the first part of the 22-nd cycle). LDE-type flares (Long Duration Events in SXR) are associated with the interplanetary protons (SEP and STIP as well), ...
Riese M L - - 1994
To examine the significance of relative birth weight of cotwins for neonatal temperament, 70 pairs of full-term twins who were at least 15% discordant for birth weight were assessed. The assessment focused on irritability, resistance to soothing, activity, reactivity, and reinforcement value. The larger twin of the pair was more ...
Gottfried N W - - 1994
In this study the roles of the mother and the co-twin in inhibiting emotional arousal and reducing manifest distress of a twin who had been isolated in a modified strange situation were compared. The subjects were 15 children, each a member of a twin pair. The subjects were placed in ...
Nicolaides K - - 1994
We did a prospective study of women with singleton viable pregnancies at 10-13 weeks' gestation who requested first-trimester fetal karyotyping because of advanced maternal age, parental anxiety, or family history of chromosomal abnormality. Women were counselled as to the available options of non-invasive screening or invasive testing by mid-trimester amniocentesis, ...
Cantor-Graae E - - 1994
OBJECTIVE: Neurological abnormalities found in schizophrenic subjects and their healthy relatives have raised questions concerning etiology. The aim of the present study was to investigate the genetic and environmental antecedents of neurological impairment in monozygotic twins discordant for schizophrenia, with particular focus on the well discordant twins. The etiological factors ...
Williams H - - 1994
A retrospective case control study was designed to investigate the role of subclinical infection as a risk factor for the high rate of preterm deliveries in IVF/GIFT pregnancies. The cases and the controls were identified from the records of consecutive livebirths of < 35 weeks' gestational age (GA), at King ...
Gabler S - - 1994
On the basis of a family reconstitution of the rural Krummhörn population (Ostfriesland, Germany) of the eighteenth and nineteenth centuries, we pursued the question of to what extent the birth of twins contributed to the reproductive fitness of their mothers. The twinning rate was 16.2/1000; the secondary sex ratio among ...
So B H - - 1994
Twin pregnancies carry a greater mortality and morbidity rate than singleton pregnancies. In case of an intrauterine fetal death (IUFD), the risk of mortality and morbidity of the surviving twin is increased. The pathogenesis is usually due to twin to twin transfusion. The donor twin is hypovolemic, anemic and often ...
Cragan J D - - 1994
OBJECTIVE: To compare the prevalence of small intestinal atresia among twins and singletons in the United States. DESIGN: Descriptive analysis. MEASUREMENTS: The McDonnell Douglas Health Information System (MDHIS), a national registry of newborn diagnoses, 1982 through 1988; and the Metropolitan Atlanta Congenital Defects Program (MACDP), a registry of defects among ...
Luke B - - 1994
OBJECTIVE: To evaluate changes in the incidence and proportion of live births by plurality in the United States between 1960 and 1990, and to compare the distribution of singleton, twin, and triplet and higher-order births (triplet+) by maternal and infant characteristics for 1973 and 1990. METHODS: Vital statistics data were ...
Fraser D - - 1994
In a population-based study, the association between twin perinatal outcome, birth weight discordance and intrauterine growth retardation (IUGR) was investigated. Mortality was examined in 1,145 twin pairs, and neonatal morbidity was studied in 315 live-born pairs. In this study, birth weight discordance was defined as > or = 25% of ...
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