Intrauterine Growth Retardation (intrauterine + growth_retardation)

Distribution by Scientific Domains
Distribution within Medical Sciences


Selected Abstracts


The relationship between the neighbourhood environment and adverse birth outcomes

PAEDIATRIC & PERINATAL EPIDEMIOLOGY, Issue 3 2006
Thomas A. Farley
Summary Intrauterine growth retardation and preterm birth are more frequent in African-American women and women of lower socio-economic status, but the reasons for these disparities are not fully understood. The physical and social environments in which these women live may contribute to these disparities. We conducted a multilevel study to explore whether conditions of mothers' neighbourhood of residence contribute to adverse birth outcomes independent of individual-level determinants. We analysed data from 105 111 births in 1015 census tracts in Louisiana during 1997,98, merging it with data from other existing sources on neighbourhood socio-economic status, neighbourhood physical deterioration, and neighbourhood density of retail outlets selling tobacco, alcohol and foods. After controlling for individual-level sociodemographic factors, tract-level median household income was positively associated with both birthweight-for-gestational-age and gestational age at birth. Neighbourhood physical deterioration was associated with these birth outcomes in ecological analyses but only inconsistently associated with them after controlling for individual-level factors. Neither gestational age nor birthweight-for-gestational-age was associated with the neighbourhood density of alcohol outlets, tobacco outlets, fast-food restaurants or grocery supermarkets. We conclude that measures of neighbourhood economic conditions are associated with both fetal growth and the length of gestation independent of individual-level factors, but that readily available measures of neighbourhood retail outlets are not. Additional studies are needed to better understand the nature of environmental influences on birth outcomes. [source]


Intrauterine growth retardation in full-term newborn infants with birth weights greater than 2,500 g

RESEARCH IN NURSING & HEALTH, Issue 6 2004
Deborah K. Steward
Abstract Intrauterine growth retardation (IUGR) is an overlooked problem in full-term infants with birth weights greater than 2,500 g. Birth weight less than the 10th percentile underestimates the presence of IUGR. The purpose of this study was to determine the prevalence of IUGR in full-term infants and to identify sociodemographic and maternal characteristics associated with IUGR. The Ohio Department of Health Vital Statistics database was used to obtain data related to sociodemographic and maternal characteristics. The fetal growth ratio (FGR) was used to determine the presence of IUGR. The sample consisted of 1,569 infants with normal ratios and 1,364 infants classified as IUGR. Infants with IUGR were more often male and African American or Asian American. Maternal characteristics associated with IUGR included history of smoking during pregnancy, lower pre-pregnancy weight, lower weight gain during pregnancy, and inadequate prenatal care. IUGR is present in a significant number of full-term infants with birth weights greater than 2,500 g. The long-term effects of IUGR in these infants remain to be determined. © 2004 Wiley Periodicals, Inc. Res Nurs Health 27:403,412, 2004 [source]


Abnormal fetal aortic velocity waveform and postnatal growth

ACTA PAEDIATRICA, Issue 11 2000
D Ley
Postnatal growth from birth up to 7 y of age was evaluated in 151 children with varying degrees of intrauterine growth retardation who were previously examined in their intrauterine life with Doppler velocimetry of the thoracic descending aorta. The children with abnormal fetal aortic blood flow class (BFC), of which 39/46 (85%) had a birthweight 2 SD below the mean of the population, were lean at birth and had a high rate of catch-up growth in weight and length during the first 3 and 6 mo, respectively. After the initial phases of rapid catch-up in weight and length, mean values of SD scores for weight and height remained relatively unchanged up until 2 y of age, thereafter increasing gradually up to 7 y of age, leaving 4/46 (8%) and 4/46 (8%) below ,2 SD for weight and height, respectively. The pattern of changes in length/height and weight over time did not differ between those infants with abnormal BFC and those with normal BFC. The abnormal fetal aortic waveform was not related to rate of early catch-up growth or to height or weight at 7 y of age after adjustment for deviation in growth at birth. The magnitude of deficit in weight and length at birth was more predictive of subsequent growth. [source]


The mother-offspring dyad and the immune system

ACTA PAEDIATRICA, Issue 3 2000
LÅ Hanson
A. The mother and the fetus. The mother's immune system reacts against the fetus and there is therefore a risk of destruction of or damage to the fetus. We are now beginning to understand some of the mechanisms that protect the fetus, but, when these are defective, intrauterine growth retardation or abortions may ensue. However, the cytokines of this maternal immune response to the fetus also monitor different phases of pregnancy, starting with effects on the ovarium and involving preparation of the decidua for the implantation of the fertilized egg, the growth of the trophoblasts, the production of hormones important for the pregnancy and finally of the prostaglandins that induce delivery. B. The mother and the child. Human milk contains anti-idiotypic antibodies which after transfer to the offspring are capable of enhancing antibody responses. Human milk contains numerous leucocytes especially during early lactation. There is increasing evidence that milk lymphocytes are taken up by the breastfed infant, which seems to have become tolerant to maternal HLA. Breastfeeding mothers are therefore good donors of renal transplants to their breastfed offspring in adult age, too. Conclusion: It is suggested that the milk lymphocytes may be taken up by the offspring and that immunological information is thereby carried over from the mother. This mechanism may explain why breastfeeding seems to confer enhanced protection against infections also some years after the termination of breastfeeding. [source]


Rapid detection of methylation change at H19 in human imprinting disorders using methylation-sensitive high-resolution melting,

HUMAN MUTATION, Issue 10 2008
Tomasz K. Wojdacz
Abstract Beckwith Wiedemann syndrome (BWS) and Russell Silver syndrome (RS) are growth disorders with opposing epimutations affecting the H19/IGF2 imprinting center at 11p15.5. Overgrowth and tumor risk in BWS is caused by aberrant expression of the paternally expressed, imprinted IGF2 gene, occurring as a consequence of mosaic hypermethylation within the imprinting center, or to mosaic paternal uniparental disomy (UPD). RS is characterized by severe intrauterine growth retardation (IUGR). A subset of RS cases were recently shown to have mosaic hypomethylation within the H19/IGF2 imprinting center, predicted to silence paternally expressed IGF2 in early development. Molecular diagnosis for BWS and RS involves methylation analysis of the H19 locus, enabling discrimination of allelic methylation patterns. In this study, methylation-sensitive high-resolution melting analysis (MS-HRM) was used to analyze methylation within the intergenic region of the H19 locus. A total of 36 samples comprising normal control (11), BWS (19), and RS (six) DNA were analyzed in a blinded study and scored as hypermethylated, normal, or hypomethylated. Results were compared with those derived by methylation-sensitive Southern blotting using the restriction enzymes Rsa I and Hpa II. A total of 100% concordance was obtained for the Southern blotting and MS-HRM scores. A total of three samples with paternal duplication affecting the H19/IGF2 region were scored as equivocal by both methods; however, 33 out of 36 (92%) the samples were unambiguously scored as being hypermethylated, hypomethylated, or normally methylated using MS-HRM. We conclude that MS-HRM is a rapid, cost-effective, and sensitive method for screening mosaic methylation changes at the H19 locus in BWS and RS. Hum Mutat 0,1,6, 2008. © 2008 Wiley-Liss, Inc. [source]


Changes of serum melatonin level and its relationship to feto-placental unit during pregnancy

JOURNAL OF PINEAL RESEARCH, Issue 1 2001
Yasuhiko Nakamura
Serum melatonin concentrations were studied in normal pregnant women and in women with several types of pathologic pregnancies, e.g., twins, preeclampsia or intrauterine growth retardation (IUGR). Blood samples were collected from the maternal antecubital vein at 14:00 hr (daytime) and 02:00 hr (nighttime) during pregnancy, and also from the umbilical vein and artery immediately after delivery. Serum melatonin concentrations were measured by radioimmunoassay. Daytime serum melatonin levels in normal (single fetus; singleton) pregnancies were low. While the levels showed an increasing tendency toward the end of pregnancy, no statistically significant changes occurred. On the other hand, the nighttime serum melatonin levels increased after 24 weeks of gestation, with significantly (P<0.01) high levels after 32 weeks; these values decreased to non-pregnant levels on the 2nd day of puerperium. Nighttime serum melatonin levels were significantly (P<0.05) higher in twin pregnancies after 28 weeks of gestation than in singleton pregnancies, whereas the patients with severe preeclampsia showed significantly (P<0.05) lower serum melatonin levels than the mild preeclampsia or the normal pregnant women after 32 weeks of gestation. Melatonin concentrations in umbilical vessels showed a higher tendency in neonates who were born during at night compared with the other neonates; moreover, those in the umbilical artery were generally higher than those in the umbilical vein. The present results indicate that in humans, the maternal serum melatonin levels show a diurnal rhythm, which increases until the end of pregnancy, reflecting some pathologic states of the feto-placental unit. Fetuses may produce melatonin with a circadian rhythm. [source]


Use of Record Linkage to Examine Alcohol Use in Pregnancy

ALCOHOLISM, Issue 4 2006
Lucy Burns
Background: To date, no population-level data have been published examining the obstetric and neonatal outcomes for women with an alcohol-related hospital admission during pregnancy compared with the general obstetric population. This information is critical to planning and implementing appropriate services. Methods: Antenatal and delivery admissions to New South Wales (NSW) hospitals from the NSW Inpatient Statistics Collection were linked to birth information from the NSW Midwives Data Collection over a 5-year period (1998,2002). Birth admissions were flagged as positive for maternal alcohol use where a birth admission or any pregnancy admission for that birth involved an alcohol-related International Statistical Classification of Diseases and Related Health Problems, 10th Revision, Australian Modification (ICD-10-AM) code. Key demographic, obstetric, and neonatal variables were compared for births to mothers in the alcohol group with births where no alcohol-related ICD10-AM was recorded. Results: A total of 416,834 birth records were analyzed over a 5-year period (1998,2002). In this time, 342 of these were coded as positive for at least 1 alcohol-related ICD-10-AM diagnosis. Mothers in the alcohol group had a higher number of previous pregnancies, smoked more heavily, were not privately insured, and were more often indigenous. They also presented later on in their pregnancy to antenatal services and were more likely to arrive at hospital unbooked for delivery. Deliveries involved less epidural and local and more general anesthesia. Cesarean sections were more common to women in the alcohol group and were performed more often for intrauterine growth retardation. Neonates born to women in the alcohol group were smaller for gestational age, had lower Apgar scores at 5 minutes, and were admitted to special care nursery more often. Conclusions: This study shows that linked population-level administrative data provide a powerful new source of information for examining the maternal and neonatal outcomes associated with alcohol use in pregnancy. [source]


Preterm delivery but not intrauterine growth retardation is associated with young maternal age among primiparae in rural Nepal

MATERNAL & CHILD NUTRITION, Issue 3 2007
Christine P. Stewart
Abstract Pregnancy during adolescence is associated with adverse birth outcomes, including preterm delivery and low birthweight. The nutrient availability to the fetus may be limited if the mother is still growing. This research aims to study the effects of pregnancy during adolescence in a nutritionally poor environment in rural Nepal. This study utilized data from a randomized controlled trial of micronutrient supplementation during pregnancy in south-eastern Nepal. Women of parity 0 or 1 and of age , 25 years who gave birth to a singleton liveborn infant who was measured within 72 h of delivery were included (n = 1393). There was no difference in the risk of low birthweight (OR = 0.96; 95% CI = 0.90,1.02) or small for gestational age (OR = 1.01; 95% CI = 0.94,1.08) per year of increasing maternal age among primiparae. Young maternal age did not affect the anthropometry or gestational age of the offspring of parity 1 women. Each year of increasing maternal age among primiparae was associated with increases in birth length (0.07 cm; 95% CI = ,0.01 to 0.16), head (0.05 cm; 95% CI = 0.01,0.09) and chest circumference (0.07 cm; 95% CI = 0.01,0.12), but not weight (9.0 g; 95% CI = ,2.1 to 21.8) of their offspring. Young maternal age was associated with an increased risk of preterm delivery among primiparae (OR = 2.07; 95% CI = 1.26,3.38) that occurred at an age cut-off of ,18 years relative to those 19,25 years. Thus, we conclude that young maternal age (,18 years) increased the risk of preterm delivery, but not intrauterine growth retardation, for the first but not second liveborn infant. [source]


Childhood malnutrition and its predictors in rural Malawi

PAEDIATRIC & PERINATAL EPIDEMIOLOGY, Issue 4 2003
Kenneth Maleta
Summary We prospectively followed up a population-based cohort of 767 rural Malawian children from birth to 36 months to characterise the timing and predictors of malnutrition. Underweight and wasting incidence peaked between 6 and 18 months of age, whereas stunting incidence was highest during the first 6 months of age. After infancy about 40% of the children were underweight, 70% stunted, and about 4% wasted. Small size during the first 3 months of life predicted the incidence of severe underweight (relative risk [95% confidence interval], 1.8 [0.9, 3.4]), severe stunting ( 2.1 [1.3, 3.4]), and moderate wasting (2.0 [1.1, 3.5]). Children with many illness episodes in infancy had a twofold risk for the development of severe underweight and moderate wasting. Severe underweight was further predicted by residence far away from a health facility and moderate wasting by maternal HIV infection. Our conclusion is that the intrauterine period and first 6 months of life are critical for the development of stunting whereas the subsequent year is more critical for the development of underweight and wasting. Strategies combating intrauterine growth retardation, maternal HIV and infant morbidity are likely to reduce the burden of malnutrition in this population. [source]


Does maternal smoking during pregnancy cause childhood overweight?

PAEDIATRIC & PERINATAL EPIDEMIOLOGY, Issue 2 2003
Marius Widerøe
Summary The objective of this study was to examine a possible association between maternal smoking in pregnancy and childhood overweight. From a population-based cohort of 5722 women from Trondheim, Bergen (Norway) and Uppsala (Sweden) enrolled in early pregnancy during 1986,92, a random sample of 482 women was selected for participation. They were followed up throughout pregnancy, and their children from birth until 5 years of age. Data on maternal smoking and diet, socio-economic determinants and breast feeding were recorded prospectively. During pregnancy and childhood, anthropometric measures were also recorded. Maternal smoking status was based on reported number of cigarettes smoked in week 17 of pregnancy. Child overweight was defined by body mass index (BMI) and sum of skinfold thickness (SFT) , 85th percentile at 5 years of age. Children of mothers who smoked in pregnancy had increased risk of overweight at 5 years of age (RR 2.5, 95% CI 1.5, 4.2 for BMI; and RR 1.8, 95% CI 1.1, 3.0 for SFT). Adjusting for maternal diet, breast feeding, maternal obesity and socio-economic status did not suggest confounding. However, adjustment for birthweight increased the observed risk. A linear increase in BMI and SFT was observed with increasing number of cigarettes smoked. In conclusion, smoking during pregnancy may be a risk factor for development of childhood overweight. This study may support the hypothesis of ,fetal origin of adult disease', but the risk of overweight associated with smoking during pregnancy was independent of intrauterine growth retardation, and may thus be attributed to specific effects of cigarette smoke. [source]


No evidence for a major ,-cell dysfunction in young adults born with intra-uterine growth retardation

PEDIATRIC DIABETES, Issue 4 2000
D Jaquet
Abstract: The association between low birth weight and the later development of type 2 diabetes is well established. It has been hypothesized that in utero undernutrition may affect pancreatic ,-cell development, leading to an impaired ,-cell function in adulthood. We have previously demonstrated that intrauterine growth retardation (IUGR) is associated with insulin-resistance early in adulthood. The aim of this study was to test whether IUGR would affect ,-cell function in young adults. Twelve 25-yr-old insulin-resistant subjects with IUGR were matched for age gender and body mass index (BMI) to 13 controls. All of them had normal glucose tolerance. Mean fasting plasma glucose did not significantly differ between the group with IUGR and the control group (97 ± 7 vs. 98 ± 4 mg/dL; p = 0.83). Blood glucose was maintained at 124.8 ± 6.5 vs. 126.2 ± 7.5 mg/dL above the basal glycemia in the IUGR and control groups (p = 0.64) throughout the hyperglycemic clamp. Serum insulin concentrations did not significantly differ between the group with IUGR and the control group either during the first (0,10 min) phase (311 ± 252 vs. 248 ± 184 pmol/L, p = 0.85) or during the second (80,100 min) phase (575 ± 284 vs. 559 ± 413 pmol/L, p = 0.72). C-peptide concentrations were similar in both groups during the two phases (2.35 ± 1.44 vs. 2.59 ± 1.10 nmol/L, p = 0.39 and 4.86 ± 1.36 vs. 4.96 ± 1.41 nmol/L, p = 0.91). In conclusion, our data do not argue in favor of an impairment of ,-cell function at 25 yr of age as a consequence of in utero undernutrition, but rather suggest that insulin resistance might be the primary defect responsible for the development of metabolic disorders associated with IUGR in adulthood. [source]


Thrombocytopenia: An important indicator for the application of partial exchange transfusion in polycythemic newborn infants?

PEDIATRICS INTERNATIONAL, Issue 4 2000
Betül Acunas
Abstract Background: The conventional therapeutic approach in polycythemic newborn infants is to apply partial exchange transfusion (PET) when hematocrit value exceeds 70% or when the infant develops symptoms with the exception of plethora. Methods: In order to investigate the possibility of using platelet count as a simple criterion implying the PET requirement, we retrospectively reviewed polycythemic newborn infants with respect to the relationship between thrombocytopenia and severity of symptoms, and the association of platelet count and the PET performance. Thrombocytopenia has been defined as a platelet count <150 000/,L. Results: We studied 18 polycythemic infants with thrombocytopenia (group 1, 35%) and 34 without it (group 2, 65%). Perinatal asphyxia, gestational toxemia and intrauterine growth retardation, which are the three common causative factors leading to polycythemia, were not significantly different in the two groups. No correlation existed between platelet counts and hematocrit values within each group, but there was a very significant difference between the two groups in terms of severity of clinical findings (P<0001); no difference in terms of moderate findings and moderately significant difference with respect to mild symptoms and asymptomatic situation (P<0.05). Partial exchange transfusion was performed in all patients in group 1, while only 12 infants in group 2 (32%) received transfusion and the difference was statistically significant (P<0.05). A significant rise in platelet counts has been achieved only in group 1, while hematocrit values decreased significantly in both groups following PET. Conclusions: This study emphasizes the relationship between thrombocytopenia and the severity of clinical findings and PET performance rate in polycythaemic newborn infants, implying that thrombocytopenia is a possible marker of hyperviscosity, the results of which warrant further investigation. [source]


Molecular characterization of a ring chromosome 15 in a fetus with intra uterine growth retardation and diaphragmatic hernia

PRENATAL DIAGNOSIS, Issue 5 2007
Elghezal Hatem
Abstract Objective To improve the phenotype-genotype correlation in terminal 15q deletions and ring chromosome 15 syndrome. Methods Echographic examination of fetus. R-banded chromosome and FISH analysis on cultured amniocytes. Microsatellite analysis to determine parental origin of the ring chromosome 15. Fetal autopsy. Results We report a new case of prenatal diagnosis of congenital diaphragmatic hernia and intrauterine growth retardation in a fetus with ring chromosome 15 involving 15q26.1-qter deletion. Conclusion This case support the evidence that the region 15q26.3 is implicated in intrauterine growth retardation and suggests that the 15q critical region implicated in congenital diaphragmatic hernia is localized in 15q26.1,q26.2. Copyright © 2007 John Wiley & Sons, Ltd. [source]


Sacrococcygeal teratoma in a fetus with prenatally diagnosed partial trisomy 10q (10q24.3,qter) and partial monosomy 17p (p13.3,pter)

PRENATAL DIAGNOSIS, Issue 4 2007
Cem Batukan
Abstract Objective Clinical features of the distal 10q trisomy syndrome consist of mental retardation, facial dysmorphism and renal and cardiac anomalies. The presence of a sacrococcygeal teratoma (SCT) in a fetus with distal 10q trisomy has not been reported yet. Methods A 33-year-old, G5, P2 woman with a singleton pregnancy was referred to our clinic at 24 weeks of gestation for further evaluation of a fetal sacral exophytic mass. Detailed fetal sonographic examination together with chromosomal analysis by amniocentesis was performed. Results The scan revealed a large SCT together with a persistent right umbilical vein, cardiomegaly, bilateral mild hydronephrosis and intrauterine growth retardation. The fetal karyotype showed distal 10q trisomy (10q24.3,qter) distal monosomy 17 (p13,pter). The fetus died after a preterm delivery at 28 weeks of gestation. Postnatal examination confirmed the prenatal findings and added the typical facial features of this syndrome, which consisted of prominent forehead, small nose with depressed nasal bridge, micrognathia and bow-shaped mouth. Conclusion This case provides further evidence of a possible association between chromosomal aberrations in SCTs. Copyright © 2007 John Wiley & Sons, Ltd. [source]


Possible human chimera detected prenatally after in vitro fertilization: a case report

PRENATAL DIAGNOSIS, Issue 11 2003
B. Simon-Bouy
Abstract Background Chimerism is the coexistence of more than one cell line in an individual, due to the fusion of originally separate zygotes. It has been very rarely described in humans. Methods A 36-year-old woman who was referred for in vitro fertilization (IVF) for unexplained infertility had three embryos transferred. Results Four weeks and five days after the transfer, ultrasound examination detected a single fetus in the uterus. Ultrasound examination at 17 weeks for metrorrhagia showed severe intrauterine growth retardation. Amniocentesis revealed a mixture of 46,XY and 46,XX clones. Histopathologic examination showed a dysmorphic fetus with female phenotype and severe growth retardation. Conclusions Although demonstration by fingerprinting has not been possible, fusion of two of the three transferred embryos (one male and one female) seems to be the most probable mechanism that could explain both cytogenetic and histopathologic observations. No chimera has yet been described after IVF. It would be interesting to collect any such observations from other IVF centers. Copyright © 2003 John Wiley & Sons, Ltd. [source]


Retrospective analysis of outcome of pregnancy in women with congenital heart disease: Single-centre experience from North India

AUSTRALIAN AND NEW ZEALAND JOURNAL OF OBSTETRICS AND GYNAECOLOGY, Issue 4 2009
Neelam AGGARWAL
Objective: To study maternal and perinatal outcome in congenital heart disease (CHD) and to compare outcome between cyanotic and acyanotic CHD. Method: A retrospective analysis of 196 cases of CHD was undertaken, and maternal and perinatal outcome of pregnancy was compared in cyanotic and acyanotic cases and between surgically corrected and uncorrected cases. Results: Maternal and perinatal outcome was better in the acyanotic group. Maternal complications included higher incidence of cardiac complications in cyanotic group, (33.3% vs 3.4% in acyanotic group, P = 0.001), abruption (12.5% vs nil) and pregnancy-induced hypertension (16.6% vs 5.2%). Rate of prematurity (25% vs 11.6%), intrauterine growth retardation (50% vs 15.1%, P = 0.003) and abortion (4.1% vs 2.1%) was higher in cyanotic group. Mean gestational age at delivery was better in corrected group, 37.13 vs 34.93 weeks in uncorrected group. There was no case of infective endocarditis. There were four cases of maternal mortality in cyanotic group, two of which were in women with Eisenmenger syndrome. In acyanotic heart disease one case died undelivered and one died on first postoperative day. Conclusion: Maternal and perinatal outcome is better in acyanotic CHD compared to cyanotic CHD. Surgical correction of cardiac lesions prior to conception improves outcome. [source]


Antibody responses to Porphyromonas gingivalis outer membrane protein in the first trimester

AUSTRALIAN AND NEW ZEALAND JOURNAL OF OBSTETRICS AND GYNAECOLOGY, Issue 2 2009
Jun SASAHARA
Background:,Porphyromonas gingivalis (Pg) is one of the most harmful periodontal pathogens and it has been reported that Pg is associated with preterm birth (PTB), intrauterine growth retardation (IUGR) and pregnancy-induced hypertension (PIH), discovered by animal experiments and clinical research. The relationship between adverse pregnancy outcomes and maternal antibody response to Pg is controversial. On the other hand, the serum C-reactive protein (CRP) has been recognised as a reliable serum marker of periodontal disease. Aims:, To determine the significance of antibody responses to Pg affecting pregnancy outcomes in the first trimester. Methods:, A case,control study was carried out on women with PTB (n = 58), IUGR (n = 91), PIH (n = 32) and without any complications (control, n = 98). The serum level of the CRP and IgG1 against 40-kDa outer membrane protein of Pg (anti-40-kDa OMP Pg -IgG1) in the first trimester was measured. Results:, The IUGR group, and PTB patients whose placentas were diagnosed as chorioamnionitis or whose vaginal flora included Lactobacilli, showed a lower level of anti-40-kDa OMP Pg -IgG1 than the control group. There was no difference in the serum CRP level between each case group and control group. Conclusions:, These results suggest that a lack of humoral immunity against Pg in early pregnancy is associated with IUGR and some PTB. [source]


Team Midwifery Care in a Tertiary Level Obstetric Service: A Randomized Controlled Trial

BIRTH, Issue 3 2000
Mary Anne Biró RN
Background:In 1996 a new model of maternity care characterized by continuity of midwifery care from early pregnancy through to the postpartum period was implemented for women attending Monash Medical Centre, a tertiary level obstetric service, in Melbourne, Australia. The objective of this study was to compare the new model of care with standard maternity care.Methods:In a randomized controlled trial, 1000 women who booked at the antenatal clinic and met the eligibility criteria were randomly allocated to receive continuity of midwifery care (team care) from a group of seven midwives in collaboration with obstetric staff, or care from a variety of midwives and obstetric staff (standard care). The primary outcome measures were procedures in labor, maternal outcomes, neonatal outcomes, and length of hospital stay.Results:Women assigned to the team care group experienced less augmentation of labor, less electronic fetal monitoring, less use of narcotic and epidural analgesia, and fewer episiotomies but more unsutured tears. Team care women stayed in hospital 7 hours less than women in standard care. More babies of standard care mothers were admitted to the special care nurseries for more than 5 days because of preterm birth, and more babies of team care mothers were admitted to the nurseries for more than 5 days with intrauterine growth retardation. No differences occurred in perinatal mortality between the two groups.Conclusions:Continuity of midwifery care was associated with a reduction in medical procedures in labor and a shorter length of stay without compromising maternal and perinatal safety. Continuity of midwifery care is realistically achievable in a tertiary obstetric referral service. [source]


Fetal bilateral renal agenesis, phocomelia, and single umbilical artery associated with cocaine abuse in early pregnancy

BIRTH DEFECTS RESEARCH, Issue 11 2003
Maki Kashiwagi
BACKGROUND Maternal cocaine abuse in pregnancy is associated with complications such as intrauterine growth retardation, abruptio placentae, and preterm delivery. CASE We report what is, to our knowledge, the first published observation of fetal bilateral renal agenesis associated with a vascular disruption syndrome comprising upper limb reduction defect and a single umbilical artery following maternal cocaine abuse in early pregnancy. CONCLUSIONS This constellation in a fetus aborted at 18 weeks extends the spectrum of complications possibly associated with cocaine abuse in pregnancy. Birth Defects Research (Part A), 2003. © 2003 Wiley-Liss, Inc. [source]


Septo-optic dysplasia as a manifestation of valproic acid embryopathy

BIRTH DEFECTS RESEARCH, Issue 2 2001
Carrie L. McMahon
Background The use of valproic acid during pregnancy has been associated with adverse fetal outcomes, including major and minor congenital malformations, intrauterine growth retardation (IUGR), hyperbilirubinemia, hepatotoxicity, transient hyperglycemia, and fetal and neonatal distress. In addition, intrauterine exposure to valproic acid has been associated with an increased risk of central nervous system abnormalities, primarily neural tube defects. Optic nerve hypoplasia has been reported in association with other prenatal anticonvulsant exposures, but the occurrence of septo-optic dysplasia as a manifestation of valproic acid embryopathy has not been reported previously. Results We report on a woman who received Depakote (valproic acid) throughout her pregnancy for the treatment of a seizure disorder. The patient presented with features typical of valproic acid embryopathy, including bitemporal narrowing, hypertelorism, short palpebral fissures, epicanthal folds, microphthalmia, a flat broad nasal bridge, small mouth, hypoplastic nails, mild clinodactyly, and camptodactyly. MRI showed hypoplasia of the optic chiasm and absence of the septum pellucidum. Conclusions We report the first case of septo-optic dysplasia associated with maternal exposure to valproic acid throughout pregnancy. This case expands the clinical phenotype of valproate embryopathy. Teratology 64:83,86, 2001. © 2001 Wiley-Liss, Inc. [source]


Neonatal death after hypoxic ischaemic encephalopathy: does a postmortem add to the final diagnoses?

BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 7 2005
Dawn E. Elder
Background Case review after fatal perinatal asphyxia may have medicolegal implications. Accurate diagnosis of cause of death is therefore essential. Objective To determine consent rate and utility of autopsy after fatal grade III hypoxic ischaemic encephalopathy (HIE) presumed to be secondary to birth asphyxia. Design A retrospective clinical review from January 1995 to December 2002. Setting Regional tertiary referral neonatal unit, Wellington, New Zealand. Population Inclusion criteria were gestation ,37 weeks, resuscitation after delivery and clinical course of grade III HIE. Exclusions were a recognised major lethal malformation. Methods Review of clinical records including the autopsy report. Main outcome measures Consent for autopsy, change in diagnosis after autopsy. Results Twenty-three infants died during the time period with a major diagnosis of grade III HIE. Three did not meet inclusion criteria. Of the remaining 20, 11 were female. Median gestation at birth was 40 weeks (range 38,42 weeks) and median birth weight was 3568 g (range 2140,4475 g). In 8/17 of the infants for whom length and head measurements were available, the Ponderal Index suggested intrauterine growth retardation. The 16/20 infants had an autopsy. Four of these were Coroner's cases giving an autopsy rate of 80% with a rate by consent of 60%. In 10 (62.5%) infants, significant new information was added to the clinical diagnoses. Conclusions Neonatal HIE is a symptom rather than a final clinical diagnosis. A full autopsy is required to fully explore the reasons for fatal neonatal HIE and may provide information that is important medicolegally. [source]


Obstetric risk factors and persistent increases in brain parenchymal echogenicity in preterm infants

BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 9 2004
Arsenio Spinillo
Objective To assess the risk of persistent (>7 days) increases in brain parenchymal echogenicity in preterm infants and their association with known obstetric risk factors. Design Case,control study of prospectively collected data. Setting A University hospital in Northern Italy. Population Eighty-five singleton infants between 24 and 34 weeks of gestation with a cranial ultrasonographic diagnosis of persistently increased parenchymal echogenicity without development of cystic degeneration, and 170 control infants with negative cranial ultrasonographic findings. Methods A comparison of the prevalence of selected obstetric risk factors between infants with persistent echo-dense lesions and negative controls. Main outcome measures Odds ratios of persistent echo-dense lesions including first-degree interactions between variables. Results After adjusting for birthweight, logistic regression analysis showed that the only factor associated with an increased risk of persistent brain echo-dense lesions in infants was multiple courses of antenatal steroids (OR = 2.14, 95% CI = 1.11,4.15, P= 0.024). In this group, the risk of persistent echo-dense lesions was particularly high in: (i) mothers receiving dexamethasone rather than betamethasone (P value for interaction = 0.015) and (ii) after expectant management of pre-eclampsia or intrauterine growth retardation (P value for interaction = 0.03). Conclusions Multiple doses of antenatal steroids, especially dexamethasone, could influence the prevalence of persistent increases in brain parenchymal echogenicity in preterm infants. [source]


Low dose acetylsalicylic acid in prevention of pregnancy-induced hypertension and intrauterine growth retardation in women with bilateral uterine artery notches

BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 2 2002
Merja Vainio
Objective To evaluate the efficacy of low-dose acetylsalicylic acid in the prevention of pregnancy-induced hypertension and intrauterine growth retardation in high-risk pregnancies as determined by transvaginal Doppler ultrasound study of the uterine arteries at 12 to 14 weeks of gestation. Design Randomised, double blind and placebo-controlled trial. Setting The Department of Obstetrics and Gynaecology, Tampere University Hospital, Finland. Population One hundred and twenty pregnant women considered to be at high risk of pre-eclampsia or intrauterine growth retardation were screened by transvaginal Doppler ultrasound at 12 to 14 weeks of gestation. Methods Ninety pregnant women with bilateral notches in the uterine arteries were randomised to receive acetylsalicyclic acid 0.5mg/kg/day (n= 45) or placebo (n= 45) from 12 to 14 weeks of gestation. Main outcome measures Hypertensive disorders of pregnancy and intrauterine growth retardation. Results Forty-three women on acetylsalicyclic acid and 43 on placebo were successfully followed up. The use of acetylsalicyclic acid was associated with a statistically significant reduction in the incidence of pregnancy-induced hypertension (11.6%vs 37.2%, RR = 0.31, 95% CI 0.13,0.78) and pre-eclampsia (4.7%vs 23.3%, RR = 0.2, 95% CI 0.05,0.86). The incidence of hypertension before 37 weeks of pregnancy was also significantly reduced (2.3%vs 20.9%, RR = 0.22, 95% CI 0.05,0.97). The reduction in the incidence of intrauterine growth retardation (2.3%vs 7%) was not statistically significant. Acetylsalicyclic acid was not associated with excess risk of maternal or fetal bleeding. Conclusion In women rated in Doppler velocimetry waveform analysis to be at high risk of pre-eclampsia, low-dose acetylsalicyclic acid reduces the incidence of pregnancy-induced hypertension and especially proteinuric pre-eclampsia. [source]


A discrepancy between gestational age estimated by last menstrual period and biparietal diameter may indicate an increased risk of fetal death and adverse pregnancy outcome

BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 9 2000
Tri huu Nguyen Research Fellow
Objective To determine if the discrepancy between gestational age estimated by last menstrual period and by biparietal diameter (GALMP, GABPD) is associated with adverse pregnancy outcome. Design Population-based follow up study. Population Singleton pregnancies were studied when a reliable date of last menstrual period and biparietal diameter measured between 12 and 22 weeks of gestation was available (n= 16,469). Methods Logistic regression analysis and Kaplan-Meier survival analysis were used to analyse the association between GALMP, GABPD and adverse pregnancy outcome. Main outcome measures Adverse outcome was defined as abortion after 12 weeks of gestation, stillbirth or postnatal death within one year of birth, delivery < 37 weeks of gestation, a birthweight < 2500 g or a sex-specific birthweight lower than 22% below the expected. Results The risk of death was more than doubled if GALMP, GABPD of , 8 days was compared with GALMP, GABPD of < 8 days (OR 2.2; 95% CI 1.6,3.1). The risk of death was a factor of 6.1 higher if GALMP, GABPD of , 8 days was combined with increased (> 2 × multiple of median) maternal alphafetoprotein measured in the 2nd trimester. Conclusions A discrepancy between GALMP and GABPD generally reflects the precision of the two methods used to predict term pregnancy. However, a positive discrepancy of more than seven days, particularly with high maternal alpha-fetoprotein, might indicate intrauterine growth retardation and an increased risk of adverse perinatal outcome. [source]